Example #1
0
def download_file(url, dest, cachename=None):
    """Downloads a file using a local cache.

    If the file cannot be downloaded or if it wasn't modified, the cached
    version will be used instead.

    The cache lives in ``~/.cache/reprozip/``.
    """
    if cachename is None:
        cachename = dest.name

    request = Request(url)

    if 'XDG_CACHE_HOME' in os.environ:
        cache = Path(os.environ['XDG_CACHE_HOME'])
    else:
        cache = Path('~/.cache').expand_user()
    cache = cache / 'reprozip' / cachename
    if cache.exists():
        mtime = email.utils.formatdate(cache.mtime(), usegmt=True)
        request.add_header('If-Modified-Since', mtime)

    cache.parent.mkdir(parents=True)

    try:
        response = urlopen(request)
    except URLError as e:
        if cache.exists():
            if isinstance(e, HTTPError) and e.code == 304:
                logging.info("Cached file %s is up to date", cachename)
            else:
                logging.warning("Couldn't download %s: %s", url, e)
            cache.copy(dest)
            return
        else:
            raise

    if response is None:
        logging.info("Cached file %s is up to date", cachename)
        cache.copy(dest)
        return

    logging.info("Downloading %s", url)
    try:
        CHUNK_SIZE = 4096
        with cache.open('wb') as f:
            while True:
                chunk = response.read(CHUNK_SIZE)
                if not chunk:
                    break
                f.write(chunk)
        response.close()
    except Exception as e:  # pragma: no cover
        try:
            cache.remove()
        except OSError:
            pass
        raise e

    cache.copy(dest)
Example #2
0
def download_file(url, dest, cachename=None):
    """Downloads a file using a local cache.

    If the file cannot be downloaded or if it wasn't modified, the cached
    version will be used instead.

    The cache lives in ``~/.cache/reprozip/``.
    """
    if cachename is None:
        cachename = dest.name

    request = Request(url)

    if 'XDG_CACHE_HOME' in os.environ:
        cache = Path(os.environ['XDG_CACHE_HOME'])
    else:
        cache = Path('~/.cache').expand_user()
    cache = cache / 'reprozip' / cachename
    if cache.exists():
        mtime = email.utils.formatdate(cache.mtime(), usegmt=True)
        request.add_header('If-Modified-Since', mtime)

    cache.parent.mkdir(parents=True)

    try:
        response = urlopen(request)
    except URLError as e:
        if cache.exists():
            if isinstance(e, HTTPError) and e.code == 304:
                logging.info("Cached file %s is up to date", cachename)
            else:
                logging.warning("Couldn't download %s: %s", url, e)
            cache.copy(dest)
            return
        else:
            raise

    if response is None:
        logging.info("Cached file %s is up to date", cachename)
        cache.copy(dest)
        return

    logging.info("Downloading %s", url)
    try:
        CHUNK_SIZE = 4096
        with cache.open('wb') as f:
            while True:
                chunk = response.read(CHUNK_SIZE)
                if not chunk:
                    break
                f.write(chunk)
        response.close()
    except Exception as e:  # pragma: no cover
        try:
            cache.remove()
        except OSError:
            pass
        raise e

    cache.copy(dest)
Example #3
0
def download_file(url, dest, cachename=None):
    """Downloads a file using a local cache.

    If the file cannot be downloaded or if it wasn't modified, the cached
    version will be used instead.

    The cache lives in ``~/.cache/reprozip/``.
    """
    if cachename is None:
        cachename = dest.components[-1]

    request = Request(url)

    if 'XDG_CACHE_HOME' in os.environ:
        cache = Path(os.environ['XDG_CACHE_HOME'])
    else:
        cache = Path('~/.cache').expand_user()
    cache = cache / 'reprozip' / cachename
    if cache.exists():
        mtime = email.utils.formatdate(cache.mtime(), usegmt=True)
        request.add_header('If-Modified-Since', mtime)

    cache.parent.mkdir(parents=True)

    try:
        response = urlopen(request, timeout=2 if cache.exists() else 10)
    except URLError as e:
        if cache.exists():
            if isinstance(e, HTTPError) and e.code == 304:
                logging.info("Download %s: cache is up to date", cachename)
            else:
                logging.warning("Download %s: error downloading %s: %s",
                                cachename, url, e)
            cache.copy(dest)
            return
        else:
            raise

    if response is None:
        logging.info("Download %s: cache is up to date", cachename)
        cache.copy(dest)
        return

    logging.info("Download %s: downloading %s", cachename, url)
    try:
        with cache.open('wb') as f:
            copyfile(response, f)
        response.close()
    except Exception as e:  # pragma: no cover
        try:
            cache.remove()
        except OSError:
            pass
        raise e
    logging.info("Downloaded %s successfully", cachename)

    cache.copy(dest)
Example #4
0
def showfiles(args):
    """Writes out the input and output files.

    Works both for a pack file and for an extracted directory.
    """
    pack = Path(args.pack[0])

    if not pack.exists():
        logging.critical("Pack or directory %s does not exist", pack)
        sys.exit(1)

    if pack.is_dir():
        # Reads info from an unpacked directory
        runs, packages, other_files = load_config_file(pack / 'config.yml',
                                                       canonical=True)
        # The '.reprounzip' file is a pickled dictionary, it contains the name
        # of the files that replaced each input file (if upload was used)
        with pack.open('rb', '.reprounzip') as fp:
            unpacked_info = pickle.load(fp)
        input_files = unpacked_info.get('input_files', {})

        print("Input files:")
        for i, run in enumerate(runs):
            if len(runs) > 1:
                print("  Run %d:" % i)
            for input_name, path in iteritems(run['input_files']):
                print("    %s (%s)" % (input_name, path))
                if input_files.get(input_name) is not None:
                    assigned = PosixPath(input_files[input_name])
                else:
                    assigned = "(original)"
                print("      %s" % assigned)

        print("Output files:")
        for i, run in enumerate(runs):
            if len(runs) > 1:
                print("  Run %d:" % i)
            for output_name, path in iteritems(run['output_files']):
                print("    %s (%s)" % (output_name, path))

    else:  # pack.is_file()
        # Reads info from a pack file
        runs, packages, other_files = load_config(pack)

        print("Input files:")
        for i, run in enumerate(runs):
            if len(runs) > 1:
                print("  Run %d:" % i)
            for input_name, path in iteritems(run['input_files']):
                print("    %s (%s)" % (input_name, path))

        print("Output files:")
        for i, run in enumerate(runs):
            if len(runs) > 1:
                print("  Run %d:" % i)
            for output_name, path in iteritems(run['output_files']):
                print("    %s (%s)" % (output_name, path))
Example #5
0
def showfiles(args):
    """Writes out the input and output files.

    Works both for a pack file and for an extracted directory.
    """
    pack = Path(args.pack[0])

    if not pack.exists():
        logging.critical("Pack or directory %s does not exist", pack)
        sys.exit(1)

    if pack.is_dir():
        # Reads info from an unpacked directory
        config = load_config_file(pack / 'config.yml',
                                  canonical=True)
        # The '.reprounzip' file is a pickled dictionary, it contains the name
        # of the files that replaced each input file (if upload was used)
        with pack.open('rb', '.reprounzip') as fp:
            unpacked_info = pickle.load(fp)
        assigned_input_files = unpacked_info.get('input_files', {})

        print("Input files:")
        for input_name, f in iteritems(config.inputs_outputs):
            if not f.read_runs:
                continue
            print("    %s (%s)" % (input_name, f.path))
            if assigned_input_files.get(input_name) is not None:
                assigned = assigned_input_files[input_name]
            else:
                assigned = "(original)"
            print("      %s" % assigned)

        print("Output files:")
        for output_name, f in iteritems(config.inputs_outputs):
            if f.write_runs:
                print("    %s (%s)" % (output_name, f.path))

    else:  # pack.is_file()
        # Reads info from a pack file
        config = load_config(pack)

        print("Input files:")
        for input_name, f in iteritems(config.inputs_outputs):
            if f.read_runs:
                print("    %s (%s)" % (input_name, f.path))

        print("Output files:")
        for output_name, f in iteritems(config.inputs_outputs):
            if f.write_runs:
                print("    %s (%s)" % (output_name, f.path))
Example #6
0
    def __init__(self, enabled, target, display=None):
        self.enabled = enabled
        if not self.enabled:
            return

        self.target = target

        self.xauth = PosixPath('/.reprounzip_xauthority')
        self.display = display if display is not None else self.DISPLAY_NUMBER
        logging.debug(
            "X11 support enabled; will create Xauthority file %s "
            "for experiment. Display number is %d", self.xauth, self.display)

        # List of addresses that match the $DISPLAY variable
        possible, local_display = self._locate_display()
        tcp_portnum = ((6000 +
                        local_display) if local_display is not None else None)

        if ('XAUTHORITY' in os.environ
                and Path(os.environ['XAUTHORITY']).is_file()):
            xauthority = Path(os.environ['XAUTHORITY'])
        # Note: I'm assuming here that Xauthority has no XDG support
        else:
            xauthority = Path('~').expand_user() / '.Xauthority'

        # Read Xauthority file
        xauth_entries = {}
        if xauthority.is_file():
            with xauthority.open('rb') as fp:
                fp.seek(0, os.SEEK_END)
                size = fp.tell()
                fp.seek(0, os.SEEK_SET)
                while fp.tell() < size:
                    entry = Xauth.from_file(fp)
                    if (entry.name == 'MIT-MAGIC-COOKIE-1'
                            and entry.number == local_display):
                        if entry.family == Xauth.FAMILY_LOCAL:
                            xauth_entries[(entry.family, None)] = entry
                        elif (entry.family == Xauth.FAMILY_INTERNET
                              or entry.family == Xauth.FAMILY_INTERNET6):
                            xauth_entries[(entry.family,
                                           entry.address)] = entry
        # FIXME: this completely ignores addresses

        logging.debug("Possible X endpoints: %s", (possible, ))

        # Select socket and authentication cookie
        self.xauth_record = None
        self.connection_info = None
        for family, address in possible:
            # Checks that we have a cookie
            entry = family, (None if family is Xauth.FAMILY_LOCAL else address)
            if entry not in xauth_entries:
                continue
            if family == Xauth.FAMILY_LOCAL and hasattr(socket, 'AF_UNIX'):
                # Checks that the socket exists
                if not Path(address).exists():
                    continue
                self.connection_info = (socket.AF_UNIX, socket.SOCK_STREAM,
                                        address)
                self.xauth_record = xauth_entries[(family, None)]
                logging.debug(
                    "Will connect to local X display via UNIX "
                    "socket %s", address)
                break
            else:
                # Checks that we have a cookie
                family = self.X2SOCK[family]
                self.connection_info = (family, socket.SOCK_STREAM,
                                        (address, tcp_portnum))
                self.xauth_record = xauth_entries[(family, address)]
                logging.debug("Will connect to X display %s:%d via %s/TCP",
                              address, tcp_portnum,
                              "IPv6" if family == socket.AF_INET6 else "IPv4")
                break

        # Didn't find an Xauthority record -- assume no authentication is
        # needed, but still set self.connection_info
        if self.connection_info is None:
            for family, address in possible:
                # Only try UNIX sockets, we'll use 127.0.0.1 otherwise
                if family == Xauth.FAMILY_LOCAL:
                    if not hasattr(socket, 'AF_UNIX'):
                        continue
                    self.connection_info = (socket.AF_UNIX, socket.SOCK_STREAM,
                                            address)
                    logging.debug(
                        "Will connect to X display via UNIX socket "
                        "%s, no authentication", address)
                    break
            else:
                self.connection_info = (socket.AF_INET, socket.SOCK_STREAM,
                                        ('127.0.0.1', tcp_portnum))
                logging.debug(
                    "Will connect to X display 127.0.0.1:%d via IPv4/TCP, "
                    "no authentication", tcp_portnum)

        if self.connection_info is None:
            raise RuntimeError("Couldn't determine how to connect to local X "
                               "server, DISPLAY is %s" %
                               (repr(os.environ['DISPLAY'])
                                if 'DISPLAY' is os.environ else 'not set'))
Example #7
0
def functional_tests(raise_warnings, interactive, run_vagrant, run_docker):
    rpz_python = [os.environ.get('REPROZIP_PYTHON', sys.executable)]
    rpuz_python = [os.environ.get('REPROUNZIP_PYTHON', sys.executable)]

    # Can't match on the SignalWarning category here because of a Python bug
    # http://bugs.python.org/issue22543
    if raise_warnings:
        rpz_python.extend(['-W', 'error:signal'])
        rpuz_python.extend(['-W', 'error:signal'])

    if 'COVER' in os.environ:
        rpz_python.extend(['-m'] + os.environ['COVER'].split(' '))
        rpuz_python.extend(['-m'] + os.environ['COVER'].split(' '))

    reprozip_main = tests.parent / 'reprozip/reprozip/main.py'
    reprounzip_main = tests.parent / 'reprounzip/reprounzip/main.py'

    verbose = ['-v'] * 3
    rpz = rpz_python + [reprozip_main.absolute().path] + verbose
    rpuz = rpuz_python + [reprounzip_main.absolute().path] + verbose

    print("Command lines are:\n%r\n%r" % (rpz, rpuz))

    # ########################################
    # testrun /bin/echo
    #

    output = check_output(rpz + ['testrun', '/bin/echo', 'outputhere'])
    assert any(b' 1 | /bin/echo outputhere ' in l for l in output.splitlines())

    output = check_output(
        rpz + ['testrun', '-a', '/fake/path/echo', '/bin/echo', 'outputhere'])
    assert any(b' 1 | (/bin/echo) /fake/path/echo outputhere ' in l
               for l in output.splitlines())

    # ########################################
    # testrun multiple commands
    #

    check_call(rpz + [
        'testrun', 'bash', '-c', 'cat ../../../../../etc/passwd;'
        'cd /var/lib;'
        'cat ../../etc/group'
    ])
    check_call(rpz +
               ['trace', '--overwrite', 'bash', '-c', 'cat /etc/passwd;echo'])
    check_call(
        rpz +
        ['trace', '--continue', 'sh', '-c', 'cat /etc/group;/usr/bin/id'])
    check_call(rpz + ['pack'])
    check_call(rpuz + ['graph', 'graph.dot'])
    check_call(rpuz + ['graph', 'graph2.dot', 'experiment.rpz'])

    sudo = ['sudo', '-E']  # -E to keep REPROZIP_USAGE_STATS

    # ########################################
    # 'simple' program: trace, pack, info, unpack
    #

    def check_simple(args, stream, infile=1):
        output = check_output(args, stream).splitlines()
        try:
            first = output.index(b"Read 6 bytes")
        except ValueError:
            stderr.write("output = %r\n" % output)
            raise
        if infile == 1:
            assert output[first + 1] == b"a = 29, b = 13"
            assert output[first + 2] == b"result = 42"
        else:  # infile == 2
            assert output[first + 1] == b"a = 25, b = 11"
            assert output[first + 2] == b"result = 36"

    # Build
    build('simple', ['simple.c'])
    # Trace
    check_call(rpz + [
        'trace', '--overwrite', '-d', 'rpz-simple', './simple',
        (tests / 'simple_input.txt').path, 'simple_output.txt'
    ])
    orig_output_location = Path('simple_output.txt').absolute()
    assert orig_output_location.is_file()
    with orig_output_location.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    orig_output_location.remove()
    # Read config
    with Path('rpz-simple/config.yml').open(encoding='utf-8') as fp:
        conf = yaml.safe_load(fp)
    other_files = set(Path(f).absolute() for f in conf['other_files'])
    expected = [Path('simple'), (tests / 'simple_input.txt')]
    assert other_files.issuperset([f.resolve() for f in expected])
    # Check input and output files
    inputs_outputs = conf['inputs_outputs']
    # Exactly one input: "arg1", "...simple_input.txt"
    # Output: 'arg2', "...simple_output.txt"
    # There might be more output files: the C coverage files
    found = 0
    for fdict in inputs_outputs:
        if Path(fdict['path']).name == b'simple_input.txt':
            assert fdict['name'] == 'arg1'
            assert fdict['read_by_runs'] == [0]
            assert not fdict.get('written_by_runs')
            found |= 0x01
        elif Path(fdict['path']).name == b'simple_output.txt':
            assert fdict['name'] == 'arg2'
            assert not fdict.get('read_by_runs')
            assert fdict['written_by_runs'] == [0]
            found |= 0x02
        else:
            # No other inputs
            assert not fdict.get('read_by_runs')
    assert found == 0x03
    # Pack
    check_call(rpz + ['pack', '-d', 'rpz-simple', 'simple.rpz'])
    Path('simple').rename('simple.orig')
    # Info
    check_call(rpuz + ['info', 'simple.rpz'])
    # Show files
    check_call(rpuz + ['showfiles', 'simple.rpz'])
    # Lists packages
    check_call(rpuz + ['installpkgs', '--summary', 'simple.rpz'])
    # Unpack directory
    check_call(rpuz + ['directory', 'setup', 'simple.rpz', 'simpledir'])
    # Run directory
    check_simple(rpuz + ['directory', 'run', 'simpledir'], 'err')
    output_in_dir = join_root(Path('simpledir/root'), orig_output_location)
    with output_in_dir.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    # Delete with wrong command (should fail)
    p = subprocess.Popen(rpuz + ['chroot', 'destroy', 'simpledir'],
                         stderr=subprocess.PIPE)
    out, err = p.communicate()
    assert p.poll() != 0
    err = err.splitlines()
    assert b"Wrong unpacker used" in err[0]
    assert err[1].startswith(b"usage: ")
    # Delete directory
    check_call(rpuz + ['directory', 'destroy', 'simpledir'])
    # Unpack chroot
    check_call(
        sudo + rpuz +
        ['chroot', 'setup', '--bind-magic-dirs', 'simple.rpz', 'simplechroot'])
    try:
        output_in_chroot = join_root(Path('simplechroot/root'),
                                     orig_output_location)
        # Run chroot
        check_simple(sudo + rpuz + ['chroot', 'run', 'simplechroot'], 'err')
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Get output file
        check_call(sudo + rpuz +
                   ['chroot', 'download', 'simplechroot', 'arg2:output1.txt'])
        with Path('output1.txt').open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Get random file
        check_call(sudo + rpuz + [
            'chroot', 'download', 'simplechroot',
            '%s:binc.bin' % (Path.cwd() / 'simple')
        ])
        assert same_files('simple.orig', 'binc.bin')
        # Replace input file
        check_call(sudo + rpuz + [
            'chroot', 'upload', 'simplechroot',
            '%s:arg1' % (tests / 'simple_input2.txt')
        ])
        check_call(sudo + rpuz + ['chroot', 'upload', 'simplechroot'])
        # Run again
        check_simple(sudo + rpuz + ['chroot', 'run', 'simplechroot'], 'err', 2)
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '36'
        # Reset input file
        check_call(sudo + rpuz + ['chroot', 'upload', 'simplechroot', ':arg1'])
        # Run again
        check_simple(sudo + rpuz + ['chroot', 'run', 'simplechroot'], 'err')
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Replace input file via path
        check_call(sudo + rpuz + [
            'chroot', 'upload', 'simplechroot',
            '%s:%s' % (tests / 'simple_input2.txt', tests / 'simple_input.txt')
        ])
        check_call(sudo + rpuz + ['chroot', 'upload', 'simplechroot'])
        # Run again
        check_simple(sudo + rpuz + ['chroot', 'run', 'simplechroot'], 'err', 2)
        # Delete with wrong command (should fail)
        p = subprocess.Popen(rpuz + ['directory', 'destroy', 'simplechroot'],
                             stderr=subprocess.PIPE)
        out, err = p.communicate()
        assert p.poll() != 0
        err = err.splitlines()
        assert b"Wrong unpacker used" in err[0]
        assert err[1].startswith(b"usage:")
    finally:
        # Delete chroot
        check_call(sudo + rpuz + ['chroot', 'destroy', 'simplechroot'])

    # Use reprounzip-vistrails with chroot
    check_call(sudo + rpuz + [
        'chroot', 'setup', '--bind-magic-dirs', 'simple.rpz', 'simplechroot_vt'
    ])
    try:
        output_in_chroot = join_root(Path('simplechroot_vt/root'),
                                     orig_output_location)
        # Run using reprounzip-vistrails
        check_simple(
            sudo + rpuz_python + [
                '-m', 'reprounzip.plugins.vistrails', '1', 'chroot',
                'simplechroot_vt', '0', '--input-file',
                'arg1:%s' % (tests / 'simple_input2.txt'), '--output-file',
                'arg2:output_vt.txt'
            ], 'err', 2)
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '36'
    finally:
        # Delete chroot
        check_call(sudo + rpuz + ['chroot', 'destroy', 'simplechroot_vt'])

    if not (tests / 'vagrant').exists():
        check_call([
            'sudo', 'sh', '-c',
            'mkdir %(d)s; chmod 777 %(d)s' % {
                'd': tests / 'vagrant'
            }
        ])

    # Unpack Vagrant-chroot
    check_call(rpuz + [
        'vagrant', 'setup/create', '--memory', '512', '--use-chroot',
        'simple.rpz', (tests / 'vagrant/simplevagrantchroot').path
    ])
    print("\nVagrant project set up in simplevagrantchroot")
    try:
        if run_vagrant:
            check_simple(
                rpuz + [
                    'vagrant', 'run', '--no-stdin',
                    (tests / 'vagrant/simplevagrantchroot').path
                ], 'out')
            # Get output file
            check_call(rpuz + [
                'vagrant', 'download', (tests / 'vagrant/simplevagrantchroot'
                                        ).path, 'arg2:voutput1.txt'
            ])
            with Path('voutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Get random file
            check_call(rpuz + [
                'vagrant', 'download', (tests /
                                        'vagrant/simplevagrantchroot').path,
                '%s:binvc.bin' % (Path.cwd() / 'simple')
            ])
            assert same_files('simple.orig', 'binvc.bin')
            # Replace input file
            check_call(rpuz + [
                'vagrant', 'upload', (tests /
                                      'vagrant/simplevagrantchroot').path,
                '%s:arg1' % (tests / 'simple_input2.txt')
            ])
            check_call(rpuz + [
                'vagrant', 'upload', (tests /
                                      'vagrant/simplevagrantchroot').path
            ])
            # Run again
            check_simple(
                rpuz + [
                    'vagrant', 'run', '--no-stdin',
                    (tests / 'vagrant/simplevagrantchroot').path
                ], 'out', 2)
            # Get output file
            check_call(rpuz + [
                'vagrant', 'download', (tests / 'vagrant/simplevagrantchroot'
                                        ).path, 'arg2:voutput2.txt'
            ])
            with Path('voutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Reset input file
            check_call(rpuz + [
                'vagrant', 'upload',
                (tests / 'vagrant/simplevagrantchroot').path, ':arg1'
            ])
            # Run again
            check_simple(
                rpuz + [
                    'vagrant', 'run', '--no-stdin',
                    (tests / 'vagrant/simplevagrantchroot').path
                ], 'out')
            # Get output file
            check_call(rpuz + [
                'vagrant', 'download', (tests / 'vagrant/simplevagrantchroot'
                                        ).path, 'arg2:voutput1.txt'
            ])
            with Path('voutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file via path
            check_call(rpuz + [
                'vagrant', 'upload', (tests /
                                      'vagrant/simplevagrantchroot').path,
                '%s:%s' %
                (tests / 'simple_input2.txt', tests / 'simple_input.txt')
            ])
            # Run again
            check_simple(
                rpuz + [
                    'vagrant', 'run', '--no-stdin',
                    (tests / 'vagrant/simplevagrantchroot').path
                ], 'out', 2)
            # Destroy
            check_call(rpuz + [
                'vagrant', 'destroy', (tests /
                                       'vagrant/simplevagrantchroot').path
            ])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if (tests / 'vagrant/simplevagrantchroot').exists():
            (tests / 'vagrant/simplevagrantchroot').rmtree()
    # Unpack Vagrant without chroot
    check_call(rpuz + [
        'vagrant', 'setup/create', '--dont-use-chroot', 'simple.rpz',
        (tests / 'vagrant/simplevagrant').path
    ])
    print("\nVagrant project set up in simplevagrant")
    try:
        if run_vagrant:
            check_simple(
                rpuz + [
                    'vagrant', 'run', '--no-stdin',
                    (tests / 'vagrant/simplevagrant').path
                ], 'out')
            # Get output file
            check_call(rpuz + [
                'vagrant', 'download',
                (tests / 'vagrant/simplevagrant').path, 'arg2:woutput1.txt'
            ])
            with Path('woutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Get random file
            check_call(rpuz + [
                'vagrant', 'download', (tests / 'vagrant/simplevagrant').path,
                '%s:binvs.bin' % (Path.cwd() / 'simple')
            ])
            assert same_files('simple.orig', 'binvs.bin')
            # Replace input file
            check_call(rpuz + [
                'vagrant', 'upload', (tests / 'vagrant/simplevagrant').path,
                '%s:arg1' % (tests / 'simple_input2.txt')
            ])
            check_call(
                rpuz +
                ['vagrant', 'upload', (tests / 'vagrant/simplevagrant').path])
            # Run again
            check_simple(
                rpuz + [
                    'vagrant', 'run', '--no-stdin',
                    (tests / 'vagrant/simplevagrant').path
                ], 'out', 2)
            # Get output file
            check_call(rpuz + [
                'vagrant', 'download',
                (tests / 'vagrant/simplevagrant').path, 'arg2:woutput2.txt'
            ])
            with Path('woutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Reset input file
            check_call(rpuz + [
                'vagrant', 'upload', (tests /
                                      'vagrant/simplevagrant').path, ':arg1'
            ])
            # Run again
            check_simple(
                rpuz + [
                    'vagrant', 'run', '--no-stdin',
                    (tests / 'vagrant/simplevagrant').path
                ], 'out')
            # Get output file
            check_call(rpuz + [
                'vagrant', 'download',
                (tests / 'vagrant/simplevagrant').path, 'arg2:voutput1.txt'
            ])
            with Path('voutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Destroy
            check_call(
                rpuz +
                ['vagrant', 'destroy', (tests / 'vagrant/simplevagrant').path])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if (tests / 'vagrant/simplevagrant').exists():
            (tests / 'vagrant/simplevagrant').rmtree()

    # Unpack Docker
    check_call(rpuz + ['docker', 'setup/create', 'simple.rpz', 'simpledocker'])
    print("\nDocker project set up in simpledocker")
    try:
        if run_docker:
            check_call(rpuz + ['docker', 'setup/build', 'simpledocker'])
            check_simple(rpuz + ['docker', 'run', 'simpledocker'], 'out')
            # Get output file
            check_call(
                rpuz +
                ['docker', 'download', 'simpledocker', 'arg2:doutput1.txt'])
            with Path('doutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Get random file
            check_call(rpuz + [
                'docker', 'download', 'simpledocker',
                '%s:bind.bin' % (Path.cwd() / 'simple')
            ])
            assert same_files('simple.orig', 'bind.bin')
            # Replace input file
            check_call(rpuz + [
                'docker', 'upload', 'simpledocker',
                '%s:arg1' % (tests / 'simple_input2.txt')
            ])
            check_call(rpuz + ['docker', 'upload', 'simpledocker'])
            check_call(rpuz + ['showfiles', 'simpledocker'])
            # Run again
            check_simple(rpuz + ['docker', 'run', 'simpledocker'], 'out', 2)
            # Get output file
            check_call(
                rpuz +
                ['docker', 'download', 'simpledocker', 'arg2:doutput2.txt'])
            with Path('doutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Reset input file
            check_call(rpuz + ['docker', 'upload', 'simpledocker', ':arg1'])
            # Run again
            check_simple(rpuz + ['docker', 'run', 'simpledocker'], 'out')
            # Get output file
            check_call(
                rpuz +
                ['docker', 'download', 'simpledocker', 'arg2:doutput1.txt'])
            with Path('doutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file via path
            check_call(rpuz + [
                'docker', 'upload', 'simpledocker',
                '%s:%s' %
                (tests / 'simple_input2.txt', tests / 'simple_input.txt')
            ])
            # Run again
            check_simple(rpuz + ['docker', 'run', 'simpledocker'], 'out', 2)
            # Destroy
            check_call(rpuz + ['docker', 'destroy', 'simpledocker'])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if Path('simpledocker').exists():
            Path('simpledocker').rmtree()

    # ########################################
    # 'threads' program: testrun
    #

    # Build
    build('threads', ['threads.c'], ['-lpthread'])
    # Trace
    output = check_output(rpz + ['testrun', './threads'], 'err')
    assert any(b'successfully exec\'d /bin/./echo' in l
               for l in output.splitlines())

    # ########################################
    # 'threads2' program: testrun
    #

    # Build
    build('threads2', ['threads2.c'], ['-lpthread'])
    # Trace
    output = check_output(rpz + ['testrun', './threads2'], 'err')
    assert any(b'successfully exec\'d /bin/echo' in l
               for l in output.splitlines())

    # ########################################
    # 'segv' program: testrun
    #

    # Build
    build('segv', ['segv.c'])
    # Trace
    check_call(rpz + ['testrun', './segv'])

    # ########################################
    # 'exec_echo' program: trace, pack, run --cmdline
    #

    # Build
    build('exec_echo', ['exec_echo.c'])
    # Trace
    check_call(
        rpz +
        ['trace', '--overwrite', './exec_echo', 'originalexecechooutput'])
    # Pack
    check_call(rpz + ['pack', 'exec_echo.rpz'])
    # Unpack chroot
    check_call(sudo + rpuz +
               ['chroot', 'setup', 'exec_echo.rpz', 'echochroot'])
    try:
        # Run original command-line
        output = check_output(sudo + rpuz + ['chroot', 'run', 'echochroot'])
        assert output == b'originalexecechooutput\n'
        # Prints out command-line
        output = check_output(sudo + rpuz +
                              ['chroot', 'run', 'echochroot', '--cmdline'])
        assert any(b'./exec_echo originalexecechooutput' == s.strip()
                   for s in output.split(b'\n'))
        # Run with different command-line
        output = check_output(sudo + rpuz + [
            'chroot', 'run', 'echochroot', '--cmdline', './exec_echo',
            'changedexecechooutput'
        ])
        assert output == b'changedexecechooutput\n'
    finally:
        check_call(sudo + rpuz + ['chroot', 'destroy', 'echochroot'])

    # ########################################
    # 'exec_echo' program: testrun
    # This is built with -m32 so that we transition:
    #   python (x64) -> exec_echo (i386) -> echo (x64)
    #

    if sys.maxsize > 2**32:
        # Build
        build('exec_echo32', ['exec_echo.c'], ['-m32'])
        # Trace
        check_call(rpz + ['testrun', './exec_echo32', '42'])
    else:
        print("Can't try exec_echo transitions: not running on 64bits")

    # ########################################
    # Tracing non-existing program
    #

    ret = call(rpz + ['testrun', './doesntexist'])
    assert ret == 127

    # ########################################
    # 'connect' program: testrun
    #

    # Build
    build('connect', ['connect.c'])
    # Trace
    err = check_output(rpz + ['testrun', './connect'], 'err')
    err = err.split(b'\n')
    assert not any(b'program exited with non-zero code' in l for l in err)
    assert any(re.search(br'process connected to [0-9.]+:80', l) for l in err)

    # ########################################
    # 'vfork' program: testrun
    #

    # Build
    build('vfork', ['vfork.c'])
    # Trace
    err = check_output(rpz + ['testrun', './vfork'], 'err')
    err = err.split(b'\n')
    assert not any(b'program exited with non-zero code' in l for l in err)

    # ########################################
    # 'rename' program: trace
    #

    # Build
    build('rename', ['rename.c'])
    # Trace
    check_call(rpz +
               ['trace', '--overwrite', '-d', 'rename-trace', './rename'])
    with Path('rename-trace/config.yml').open(encoding='utf-8') as fp:
        config = yaml.safe_load(fp)
    # Check that written files were logged
    database = Path.cwd() / 'rename-trace/trace.sqlite3'
    if PY3:
        # On PY3, connect() only accepts unicode
        conn = sqlite3.connect(str(database))
    else:
        conn = sqlite3.connect(database.path)
    conn.row_factory = sqlite3.Row
    rows = conn.execute('''
        SELECT name FROM opened_files
        ''')
    files = set(Path(r[0]) for r in rows)
    for n in ('dir1/file', 'dir2/file', 'dir2/brokensymlink', 'dir2/symlink'):
        if (Path.cwd() / n) not in files:
            raise AssertionError("Missing file: %s" % (Path.cwd() / n))
    conn.close()
    # Check that created files won't be packed
    for f in config.get('other_files'):
        if 'dir2' in Path(f).parent.components:
            raise AssertionError("Created file shouldn't be packed: %s" %
                                 Path(f))

    # ########################################
    # 'readwrite' program: trace

    # Build
    build('readwrite', ['readwrite.c'])
    # Create test folder
    Path('readwrite_test').mkdir()
    with Path('readwrite_test/existing').open('w'):
        pass

    # Trace existing one
    check_call(rpz + [
        'trace', '--overwrite', '-d', 'readwrite-E-trace', './readwrite',
        'readwrite_test/existing'
    ])
    # Check that file was logged as read and written
    database = Path.cwd() / 'readwrite-E-trace/trace.sqlite3'
    if PY3:
        # On PY3, connect() only accepts unicode
        conn = sqlite3.connect(str(database))
    else:
        conn = sqlite3.connect(database.path)
    conn.row_factory = sqlite3.Row
    rows = list(
        conn.execute(
            '''
        SELECT mode FROM opened_files
        WHERE name = ?
        ''', (str(Path('readwrite_test/existing').absolute()), )))
    conn.close()
    assert rows
    assert rows[0][0] == FILE_READ | FILE_WRITE

    # Trace non-existing one
    check_call(rpz + [
        'trace', '--overwrite', '-d', 'readwrite-N-trace', './readwrite',
        'readwrite_test/nonexisting'
    ])
    # Check that file was logged as written only
    database = Path.cwd() / 'readwrite-N-trace/trace.sqlite3'
    if PY3:
        # On PY3, connect() only accepts unicode
        conn = sqlite3.connect(str(database))
    else:
        conn = sqlite3.connect(database.path)
    conn.row_factory = sqlite3.Row
    rows = list(
        conn.execute(
            '''
        SELECT mode FROM opened_files
        WHERE name = ?
        ''', (str(Path('readwrite_test/nonexisting').absolute()), )))
    conn.close()
    assert rows
    assert rows[0][0] == FILE_WRITE

    # Trace a failure: inaccessible file
    ret = call(rpz + [
        'trace', '--overwrite', '-d', 'readwrite-F-trace', './readwrite',
        'readwrite_test/non/existing/file'
    ])
    assert ret == 1

    # ########################################
    # Test shebang corner-cases
    #

    Path('a').symlink('b')
    with Path('b').open('w') as fp:
        fp.write('#!%s 0\nsome content\n' % (Path.cwd() / 'c'))
    Path('b').chmod(0o744)
    Path('c').symlink('d')
    with Path('d').open('w') as fp:
        fp.write('#!e')
    Path('d').chmod(0o744)
    with Path('e').open('w') as fp:
        fp.write('#!/bin/echo')
    Path('e').chmod(0o744)

    # Trace
    out = check_output(rpz + [
        'trace', '--overwrite', '-d', 'shebang-trace',
        '--dont-identify-packages', './a', '1', '2'
    ])
    out = out.splitlines()[0]
    assert out == ('e %s 0 ./a 1 2' % (Path.cwd() / 'c')).encode('ascii')

    # Check config
    with Path('shebang-trace/config.yml').open(encoding='utf-8') as fp:
        config = yaml.safe_load(fp)
    other_files = set(
        Path(f) for f in config['other_files']
        if f.startswith('%s/' % Path.cwd()))

    # Check database
    database = Path.cwd() / 'shebang-trace/trace.sqlite3'
    if PY3:
        # On PY3, connect() only accepts unicode
        conn = sqlite3.connect(str(database))
    else:
        conn = sqlite3.connect(database.path)
    conn.row_factory = sqlite3.Row
    rows = conn.execute('''
        SELECT name FROM opened_files
        ''')
    opened = [Path(r[0]) for r in rows if r[0].startswith('%s/' % Path.cwd())]
    rows = conn.execute('''
        SELECT name, argv FROM executed_files
        ''')
    executed = [(Path(r[0]), r[1]) for r in rows
                if Path(r[0]).lies_under(Path.cwd())]

    print("other_files: %r" % sorted(other_files))
    print("opened: %r" % opened)
    print("executed: %r" % executed)

    assert other_files == set(Path.cwd() / p
                              for p in ('a', 'b', 'c', 'd', 'e'))
    assert opened == [Path.cwd() / 'c', Path.cwd() / 'e']
    assert executed == [(Path.cwd() / 'a', './a\x001\x002\x00')]

    # ########################################
    # Test old packages
    #

    old_packages = [
        ('simple-0.4.0.rpz',
         'https://drive.google.com/uc?export=download&id=0B3ucPz7GSthBVG4xZW1V'
         'eDhXNTQ'),
        ('simple-0.6.0.rpz',
         'https://drive.google.com/uc?export=download&id=0B3ucPz7GSthBbl9SUjhr'
         'cUdtbGs'),
        ('simple-0.7.1.rpz',
         'https://drive.google.com/uc?export=download&id=0B3ucPz7GSthBRGp2Vm5V'
         'QVpWOGs'),
    ]
    for name, url in old_packages:
        print("Testing old package %s" % name)
        f = Path(name)
        if not f.exists():
            download_file_retry(url, f)
        # Info
        check_call(rpuz + ['info', name])
        # Show files
        check_call(rpuz + ['showfiles', name])
        # Lists packages
        check_call(rpuz + ['installpkgs', '--summary', name])
        # Unpack directory
        check_call(rpuz + ['directory', 'setup', name, 'simpledir'])
        # Run directory
        check_simple(rpuz + ['directory', 'run', 'simpledir'], 'err')
        output_in_dir = Path('simpledir/root/tmp')
        output_in_dir = output_in_dir.listdir('reprozip_*')[0]
        output_in_dir = output_in_dir / 'simple_output.txt'
        with output_in_dir.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Delete with wrong command (should fail)
        p = subprocess.Popen(rpuz + ['chroot', 'destroy', 'simpledir'],
                             stderr=subprocess.PIPE)
        out, err = p.communicate()
        assert p.poll() != 0
        err = err.splitlines()
        assert b"Wrong unpacker used" in err[0]
        assert err[1].startswith(b"usage: ")
        # Delete directory
        check_call(rpuz + ['directory', 'destroy', 'simpledir'])

    # ########################################
    # Copies back coverage report
    #

    coverage = Path('.coverage')
    if coverage.exists():
        coverage.copyfile(tests.parent / '.coverage.runpy')
Example #8
0
def download_file(url, dest, cachename=None, ssl_verify=None):
    """Downloads a file using a local cache.

    If the file cannot be downloaded or if it wasn't modified, the cached
    version will be used instead.

    The cache lives in ``~/.cache/reprozip/``.
    """
    if cachename is None:
        if dest is None:
            raise ValueError("One of 'dest' or 'cachename' must be specified")
        cachename = dest.components[-1]

    headers = {}

    if 'XDG_CACHE_HOME' in os.environ:
        cache = Path(os.environ['XDG_CACHE_HOME'])
    else:
        cache = Path('~/.cache').expand_user()
    cache = cache / 'reprozip' / cachename
    if cache.exists():
        mtime = email.utils.formatdate(cache.mtime(), usegmt=True)
        headers['If-Modified-Since'] = mtime

    cache.parent.mkdir(parents=True)

    try:
        response = requests.get(url,
                                headers=headers,
                                timeout=2 if cache.exists() else 10,
                                stream=True,
                                verify=ssl_verify)
        response.raise_for_status()
        if response.status_code == 304:
            raise requests.HTTPError(
                '304 File is up to date, no data returned', response=response)
    except requests.RequestException as e:
        if cache.exists():
            if e.response and e.response.status_code == 304:
                logging.info("Download %s: cache is up to date", cachename)
            else:
                logging.warning("Download %s: error downloading %s: %s",
                                cachename, url, e)
            if dest is not None:
                cache.copy(dest)
                return dest
            else:
                return cache
        else:
            raise

    logging.info("Download %s: downloading %s", cachename, url)
    try:
        with cache.open('wb') as f:
            for chunk in response.iter_content(4096):
                f.write(chunk)
        response.close()
    except Exception as e:  # pragma: no cover
        try:
            cache.remove()
        except OSError:
            pass
        raise e
    logging.info("Downloaded %s successfully", cachename)

    if dest is not None:
        cache.copy(dest)
        return dest
    else:
        return cache
Example #9
0
    def __init__(self, enabled, target, display=None):
        self.enabled = enabled
        if not self.enabled:
            return

        self.target = target

        self.xauth = PosixPath('/.reprounzip_xauthority')
        self.display = (int(display) if display is not None
                        else self.DISPLAY_NUMBER)
        logger.debug("X11 support enabled; will create Xauthority file %s "
                     "for experiment. Display number is %d", self.xauth,
                     self.display)

        # List of addresses that match the $DISPLAY variable
        possible, local_display = self._locate_display()
        tcp_portnum = ((6000 + local_display) if local_display is not None
                       else None)

        if ('XAUTHORITY' in os.environ and
                Path(os.environ['XAUTHORITY']).is_file()):
            xauthority = Path(os.environ['XAUTHORITY'])
        # Note: I'm assuming here that Xauthority has no XDG support
        else:
            xauthority = Path('~').expand_user() / '.Xauthority'

        # Read Xauthority file
        xauth_entries = {}
        if xauthority.is_file():
            with xauthority.open('rb') as fp:
                fp.seek(0, os.SEEK_END)
                size = fp.tell()
                fp.seek(0, os.SEEK_SET)
                while fp.tell() < size:
                    entry = Xauth.from_file(fp)
                    if (entry.name == 'MIT-MAGIC-COOKIE-1' and
                            entry.number == local_display):
                        if entry.family == Xauth.FAMILY_LOCAL:
                            xauth_entries[(entry.family, None)] = entry
                        elif (entry.family == Xauth.FAMILY_INTERNET or
                                entry.family == Xauth.FAMILY_INTERNET6):
                            xauth_entries[(entry.family,
                                           entry.address)] = entry
        # FIXME: this completely ignores addresses

        logger.debug("Possible X endpoints: %s", (possible,))

        # Select socket and authentication cookie
        self.xauth_record = None
        self.connection_info = None
        for family, address in possible:
            # Checks that we have a cookie
            entry = family, (None if family is Xauth.FAMILY_LOCAL else address)
            if entry not in xauth_entries:
                continue
            if family == Xauth.FAMILY_LOCAL and hasattr(socket, 'AF_UNIX'):
                # Checks that the socket exists
                if not Path(address).exists():
                    continue
                self.connection_info = (socket.AF_UNIX, socket.SOCK_STREAM,
                                        address)
                self.xauth_record = xauth_entries[(family, None)]
                logger.debug("Will connect to local X display via UNIX "
                             "socket %s", address)
                break
            else:
                # Checks that we have a cookie
                family = self.X2SOCK[family]
                self.connection_info = (family, socket.SOCK_STREAM,
                                        (address, tcp_portnum))
                self.xauth_record = xauth_entries[(family, address)]
                logger.debug("Will connect to X display %s:%d via %s/TCP",
                             address, tcp_portnum,
                             "IPv6" if family == socket.AF_INET6 else "IPv4")
                break

        # Didn't find an Xauthority record -- assume no authentication is
        # needed, but still set self.connection_info
        if self.connection_info is None:
            for family, address in possible:
                # Only try UNIX sockets, we'll use 127.0.0.1 otherwise
                if family == Xauth.FAMILY_LOCAL:
                    if not hasattr(socket, 'AF_UNIX'):
                        continue
                    self.connection_info = (socket.AF_UNIX, socket.SOCK_STREAM,
                                            address)
                    logger.debug("Will connect to X display via UNIX socket "
                                 "%s, no authentication", address)
                    break
            else:
                self.connection_info = (socket.AF_INET, socket.SOCK_STREAM,
                                        ('127.0.0.1', tcp_portnum))
                logger.debug("Will connect to X display 127.0.0.1:%d via "
                             "IPv4/TCP, no authentication",
                             tcp_portnum)

        if self.connection_info is None:
            raise RuntimeError("Couldn't determine how to connect to local X "
                               "server, DISPLAY is %s" % (
                                   repr(os.environ['DISPLAY'])
                                   if 'DISPLAY' in os.environ
                                   else 'not set'))
Example #10
0
def download_file(url, dest, cachename=None, ssl_verify=None):
    """Downloads a file using a local cache.

    If the file cannot be downloaded or if it wasn't modified, the cached
    version will be used instead.

    The cache lives in ``~/.cache/reprozip/``.
    """
    if cachename is None:
        if dest is None:
            raise ValueError("One of 'dest' or 'cachename' must be specified")
        cachename = dest.components[-1]

    headers = {}

    if 'XDG_CACHE_HOME' in os.environ:
        cache = Path(os.environ['XDG_CACHE_HOME'])
    else:
        cache = Path('~/.cache').expand_user()
    cache = cache / 'reprozip' / cachename
    if cache.exists():
        mtime = email.utils.formatdate(cache.mtime(), usegmt=True)
        headers['If-Modified-Since'] = mtime

    cache.parent.mkdir(parents=True)

    try:
        response = requests.get(url, headers=headers,
                                timeout=2 if cache.exists() else 10,
                                stream=True, verify=ssl_verify)
        response.raise_for_status()
        if response.status_code == 304:
            raise requests.HTTPError(
                '304 File is up to date, no data returned',
                response=response)
    except requests.RequestException as e:
        if cache.exists():
            if e.response and e.response.status_code == 304:
                logging.info("Download %s: cache is up to date", cachename)
            else:
                logging.warning("Download %s: error downloading %s: %s",
                                cachename, url, e)
            if dest is not None:
                cache.copy(dest)
                return dest
            else:
                return cache
        else:
            raise

    logging.info("Download %s: downloading %s", cachename, url)
    try:
        with cache.open('wb') as f:
            for chunk in response.iter_content(4096):
                f.write(chunk)
        response.close()
    except Exception as e:  # pragma: no cover
        try:
            cache.remove()
        except OSError:
            pass
        raise e
    logging.info("Downloaded %s successfully", cachename)

    if dest is not None:
        cache.copy(dest)
        return dest
    else:
        return cache
Example #11
0
def functional_tests(raise_warnings, interactive, run_vagrant, run_docker):
    # Tests on Python < 2.7.3: need to use separate reprozip Python (with known
    # working version of Python)
    if sys.version_info < (2, 7, 3):
        bug13676 = True
        if 'REPROZIP_PYTHON' not in os.environ:
            sys.stderr.write("Error: using reprozip with Python %s!\n" %
                             sys.version.split(' ', 1)[0])
            sys.exit(1)
    else:
        bug13676 = False

    rpz = [os.environ.get('REPROZIP_PYTHON', sys.executable)]
    rpuz = [os.environ.get('REPROUNZIP_PYTHON', sys.executable)]

    # Can't match on the SignalWarning category here because of a Python bug
    # http://bugs.python.org/issue22543
    if raise_warnings:
        rpz.extend(['-W', 'error:signal'])
        rpuz.extend(['-W', 'error:signal'])

    if 'COVER' in os.environ:
        rpz.extend(['-m'] + os.environ['COVER'].split(' '))
        rpuz.extend(['-m'] + os.environ['COVER'].split(' '))

    reprozip_main = tests.parent / 'reprozip/reprozip/main.py'
    reprounzip_main = tests.parent / 'reprounzip/reprounzip/main.py'

    verbose = ['-v'] * 3
    rpz.extend([reprozip_main.absolute().path] + verbose)
    rpuz.extend([reprounzip_main.absolute().path] + verbose)

    print("Command lines are:\n%r\n%r" % (rpz, rpuz))

    # ########################################
    # testrun /bin/echo
    #

    output = check_output(rpz + ['testrun', '/bin/echo', 'outputhere'])
    assert any(b' 1 | /bin/echo outputhere ' in l for l in output.splitlines())

    output = check_output(
        rpz + ['testrun', '-a', '/fake/path/echo', '/bin/echo', 'outputhere'])
    assert any(b' 1 | (/bin/echo) /fake/path/echo outputhere ' in l
               for l in output.splitlines())

    # ########################################
    # testrun multiple commands
    #

    check_call(rpz + [
        'testrun', 'bash', '-c', 'cat ../../../../../etc/passwd;'
        'cd /var/lib;'
        'cat ../../etc/group'
    ])
    check_call(rpz + ['trace', 'bash', '-c', 'cat /etc/passwd;echo'])
    check_call(
        rpz +
        ['trace', '--continue', 'sh', '-c', 'cat /etc/group;/usr/bin/id'])
    check_call(rpz + ['pack'])
    if not bug13676:
        check_call(rpuz + ['graph', 'graph.dot'])
        check_call(rpuz + ['graph', 'graph2.dot', 'experiment.rpz'])

    sudo = ['sudo', '-E']  # -E to keep REPROZIP_USAGE_STATS

    # ########################################
    # 'simple' program: trace, pack, info, unpack
    #

    # Build
    build('simple', ['simple.c'])
    # Trace
    check_call(rpz + [
        'trace', '-d', 'rpz-simple', './simple',
        (tests / 'simple_input.txt').path, 'simple_output.txt'
    ])
    orig_output_location = Path('simple_output.txt').absolute()
    assert orig_output_location.is_file()
    with orig_output_location.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    orig_output_location.remove()
    # Read config
    with Path('rpz-simple/config.yml').open(encoding='utf-8') as fp:
        conf = yaml.safe_load(fp)
    other_files = set(Path(f).absolute() for f in conf['other_files'])
    expected = [Path('simple'), (tests / 'simple_input.txt')]
    assert other_files.issuperset([f.resolve() for f in expected])
    # Check input and output files
    input_files = conf['runs'][0]['input_files']
    assert (dict((k, Path(f).name) for k, f in iteritems(input_files)) == {
        'arg': b'simple_input.txt'
    })
    output_files = conf['runs'][0]['output_files']
    print(dict((k, Path(f).name) for k, f in iteritems(output_files)))
    # Here we don't test for dict equality, since we might have C coverage
    # files in the mix
    assert Path(output_files['arg']).name == b'simple_output.txt'
    # Pack
    check_call(rpz + ['pack', '-d', 'rpz-simple', 'simple.rpz'])
    Path('simple').remove()
    # Info
    check_call(rpuz + ['info', 'simple.rpz'])
    # Show files
    check_call(rpuz + ['showfiles', 'simple.rpz'])
    # Lists packages
    check_call(rpuz + ['installpkgs', '--summary', 'simple.rpz'])
    # Unpack directory
    check_call(rpuz + ['directory', 'setup', 'simple.rpz', 'simpledir'])
    # Run directory
    check_call(rpuz + ['directory', 'run', 'simpledir'])
    output_in_dir = join_root(Path('simpledir/root'), orig_output_location)
    with output_in_dir.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    # Delete with wrong command (should fail)
    p = subprocess.Popen(rpuz + ['chroot', 'destroy', 'simpledir'],
                         stderr=subprocess.PIPE)
    stdout, stderr = p.communicate()
    assert p.poll() != 0
    stderr = stderr.splitlines()
    assert b"Wrong unpacker used" in stderr[0]
    assert stderr[1].startswith(b"usage: ")
    # Delete directory
    check_call(rpuz + ['directory', 'destroy', 'simpledir'])
    # Unpack chroot
    check_call(
        sudo + rpuz +
        ['chroot', 'setup', '--bind-magic-dirs', 'simple.rpz', 'simplechroot'])
    try:
        # Run chroot
        check_call(sudo + rpuz + ['chroot', 'run', 'simplechroot'])
        output_in_chroot = join_root(Path('simplechroot/root'),
                                     orig_output_location)
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Get output file
        check_call(sudo + rpuz +
                   ['chroot', 'download', 'simplechroot', 'arg:output1.txt'])
        with Path('output1.txt').open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Replace input file
        check_call(sudo + rpuz + [
            'chroot', 'upload', 'simplechroot',
            '%s:arg' % (tests / 'simple_input2.txt')
        ])
        check_call(sudo + rpuz + ['chroot', 'upload', 'simplechroot'])
        # Run again
        check_call(sudo + rpuz + ['chroot', 'run', 'simplechroot'])
        output_in_chroot = join_root(Path('simplechroot/root'),
                                     orig_output_location)
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '36'
        # Delete with wrong command (should fail)
        p = subprocess.Popen(rpuz + ['directory', 'destroy', 'simplechroot'],
                             stderr=subprocess.PIPE)
        stdout, stderr = p.communicate()
        assert p.poll() != 0
        stderr = stderr.splitlines()
        assert b"Wrong unpacker used" in stderr[0]
        assert stderr[1].startswith(b"usage:")
    finally:
        # Delete chroot
        check_call(sudo + rpuz + ['chroot', 'destroy', 'simplechroot'])

    if not (tests / 'vagrant').exists():
        check_call([
            'sudo', 'sh', '-c',
            'mkdir %(d)s; chmod 777 %(d)s' % {
                'd': tests / 'vagrant'
            }
        ])

    # Unpack Vagrant-chroot
    check_call(rpuz + [
        'vagrant', 'setup/create', '--use-chroot', 'simple.rpz',
        (tests / 'vagrant/simplevagrantchroot').path
    ])
    print("\nVagrant project set up in simplevagrantchroot")
    try:
        if run_vagrant:
            check_call(rpuz + [
                'vagrant', 'run', '--no-stdin',
                (tests / 'vagrant/simplevagrantchroot').path
            ])
            # Destroy
            check_call(rpuz + [
                'vagrant', 'destroy', (tests /
                                       'vagrant/simplevagrantchroot').path
            ])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if (tests / 'vagrant/simplevagrantchroot').exists():
            (tests / 'vagrant/simplevagrantchroot').rmtree()
    # Unpack Vagrant without chroot
    check_call(rpuz + [
        'vagrant', 'setup/create', '--dont-use-chroot', 'simple.rpz',
        (tests / 'vagrant/simplevagrant').path
    ])
    print("\nVagrant project set up in simplevagrant")
    try:
        if run_vagrant:
            check_call(rpuz + [
                'vagrant', 'run', '--no-stdin',
                (tests / 'vagrant/simplevagrant').path
            ])
            # Destroy
            check_call(
                rpuz +
                ['vagrant', 'destroy', (tests / 'vagrant/simplevagrant').path])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if (tests / 'vagrant/simplevagrant').exists():
            (tests / 'vagrant/simplevagrant').rmtree()

    # Unpack Docker
    check_call(rpuz + ['docker', 'setup/create', 'simple.rpz', 'simpledocker'])
    print("\nDocker project set up in simpledocker")
    try:
        if run_docker:
            check_call(rpuz + ['docker', 'setup/build', 'simpledocker'])
            check_call(rpuz + ['docker', 'run', 'simpledocker'])
            # Get output file
            check_call(
                rpuz +
                ['docker', 'download', 'simpledocker', 'arg:doutput1.txt'])
            with Path('doutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file
            check_call(rpuz + [
                'docker', 'upload', 'simpledocker',
                '%s:arg' % (tests / 'simple_input2.txt')
            ])
            check_call(rpuz + ['docker', 'upload', 'simpledocker'])
            check_call(rpuz + ['showfiles', 'simpledocker'])
            # Run again
            check_call(rpuz + ['docker', 'run', 'simpledocker'])
            # Get output file
            check_call(
                rpuz +
                ['docker', 'download', 'simpledocker', 'arg:doutput2.txt'])
            with Path('doutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Destroy
            check_call(rpuz + ['docker', 'destroy', 'simpledocker'])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if Path('simpledocker').exists():
            Path('simpledocker').rmtree()

    # ########################################
    # 'threads' program: testrun
    #

    # Build
    build('threads', ['threads.c'], ['-lpthread'])
    # Trace
    check_call(rpz + ['testrun', './threads'])

    # ########################################
    # 'segv' program: testrun
    #

    # Build
    build('segv', ['segv.c'])
    # Trace
    check_call(rpz + ['testrun', './segv'])

    # ########################################
    # 'exec_echo' program: trace, pack, run --cmdline
    #

    # Build
    build('exec_echo', ['exec_echo.c'])
    # Trace
    check_call(rpz + ['trace', './exec_echo', 'originalexecechooutput'])
    # Pack
    check_call(rpz + ['pack', 'exec_echo.rpz'])
    # Unpack chroot
    check_call(sudo + rpuz +
               ['chroot', 'setup', 'exec_echo.rpz', 'echochroot'])
    try:
        # Run original command-line
        output = check_output(sudo + rpuz + ['chroot', 'run', 'echochroot'])
        assert output == b'originalexecechooutput\n'
        # Prints out command-line
        output = check_output(sudo + rpuz +
                              ['chroot', 'run', 'echochroot', '--cmdline'])
        assert any(b'./exec_echo originalexecechooutput' == s.strip()
                   for s in output.split(b'\n'))
        # Run with different command-line
        output = check_output(sudo + rpuz + [
            'chroot', 'run', 'echochroot', '--cmdline', './exec_echo',
            'changedexecechooutput'
        ])
        assert output == b'changedexecechooutput\n'
    finally:
        check_call(sudo + rpuz + ['chroot', 'destroy', 'echochroot'])

    # ########################################
    # 'exec_echo' program: testrun
    # This is built with -m32 so that we transition:
    #   python (x64) -> exec_echo (i386) -> echo (x64)
    #

    if sys.maxsize > 2**32:
        # Build
        build('exec_echo32', ['exec_echo.c'], ['-m32'])
        # Trace
        check_call(rpz + ['testrun', './exec_echo32 42'])
    else:
        print("Can't try exec_echo transitions: not running on 64bits")

    # ########################################
    # Tracing non-existing program
    #

    check_call(rpz + ['testrun', './doesntexist'])

    # ########################################
    # 'connect' program: testrun
    #

    # Build
    build('connect', ['connect.c'])
    # Trace
    stderr = check_errout(rpz + ['testrun', './connect'])
    stderr = stderr.split(b'\n')
    assert not any(b'program exited with non-zero code' in l for l in stderr)
    assert any(
        re.search(br'process connected to [0-9.]+:80', l) for l in stderr)

    # ########################################
    # Copies back coverage report
    #

    coverage = Path('.coverage')
    if coverage.exists():
        coverage.copyfile(tests.parent / '.coverage.runpy')
Example #12
0
def functional_tests(raise_warnings, interactive, run_vagrant, run_docker):
    # Tests on Python < 2.7.3: need to use separate reprozip Python (with known
    # working version of Python)
    if sys.version_info < (2, 7, 3):
        bug13676 = True
        if 'REPROZIP_PYTHON' not in os.environ:
            sys.stderr.write("Error: using reprozip with Python %s!\n" %
                             sys.version.split(' ', 1)[0])
            sys.exit(1)
    else:
        bug13676 = False

    rpz = [os.environ.get('REPROZIP_PYTHON', sys.executable)]
    rpuz = [os.environ.get('REPROUNZIP_PYTHON', sys.executable)]

    # Can't match on the SignalWarning category here because of a Python bug
    # http://bugs.python.org/issue22543
    if raise_warnings:
        rpz.extend(['-W', 'error:signal'])
        rpuz.extend(['-W', 'error:signal'])

    if 'COVER' in os.environ:
        rpz.extend(['-m'] + os.environ['COVER'].split(' '))
        rpuz.extend(['-m'] + os.environ['COVER'].split(' '))

    reprozip_main = tests.parent / 'reprozip/reprozip/main.py'
    reprounzip_main = tests.parent / 'reprounzip/reprounzip/main.py'

    verbose = ['-v'] * 3
    rpz.extend([reprozip_main.absolute().path] + verbose)
    rpuz.extend([reprounzip_main.absolute().path] + verbose)

    print("Command lines are:\n%r\n%r" % (rpz, rpuz))

    # ########################################
    # testrun /bin/echo
    #

    output = check_output(rpz + ['testrun', '/bin/echo', 'outputhere'])
    assert any(b' 1 | /bin/echo outputhere ' in l
               for l in output.splitlines())

    output = check_output(rpz + ['testrun', '-a', '/fake/path/echo',
                                 '/bin/echo', 'outputhere'])
    assert any(b' 1 | (/bin/echo) /fake/path/echo outputhere ' in l
               for l in output.splitlines())

    # ########################################
    # testrun multiple commands
    #

    check_call(rpz + ['testrun', 'bash', '-c',
                      'cat ../../../../../etc/passwd;'
                      'cd /var/lib;'
                      'cat ../../etc/group'])
    check_call(rpz + ['trace',
                      'bash', '-c', 'cat /etc/passwd;echo'])
    check_call(rpz + ['trace', '--continue',
                      'sh', '-c', 'cat /etc/group;/usr/bin/id'])
    check_call(rpz + ['pack'])
    if not bug13676:
        check_call(rpuz + ['graph', 'graph.dot'])
        check_call(rpuz + ['graph', 'graph2.dot', 'experiment.rpz'])

    sudo = ['sudo', '-E']  # -E to keep REPROZIP_USAGE_STATS

    # ########################################
    # 'simple' program: trace, pack, info, unpack
    #

    def check_simple(args, stream, infile=1):
        output = check_output(args, stream).splitlines()
        try:
            first = output.index(b"Read 6 bytes")
        except ValueError:
            stderr.write("output = %r\n" % output)
            raise
        if infile == 1:
            assert output[first + 1] == b"a = 29, b = 13"
            assert output[first + 2] == b"result = 42"
        else:  # infile == 2
            assert output[first + 1] == b"a = 25, b = 11"
            assert output[first + 2] == b"result = 36"

    # Build
    build('simple', ['simple.c'])
    # Trace
    check_call(rpz + ['trace', '-d', 'rpz-simple',
                      './simple',
                      (tests / 'simple_input.txt').path,
                      'simple_output.txt'])
    orig_output_location = Path('simple_output.txt').absolute()
    assert orig_output_location.is_file()
    with orig_output_location.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    orig_output_location.remove()
    # Read config
    with Path('rpz-simple/config.yml').open(encoding='utf-8') as fp:
        conf = yaml.safe_load(fp)
    other_files = set(Path(f).absolute() for f in conf['other_files'])
    expected = [Path('simple'), (tests / 'simple_input.txt')]
    assert other_files.issuperset([f.resolve() for f in expected])
    # Check input and output files
    inputs_outputs = conf['inputs_outputs']
    # Exactly one input: "arg1", "...simple_input.txt"
    # Output: 'arg2', "...simple_output.txt"
    # There might be more output files: the C coverage files
    found = 0
    for fdict in inputs_outputs:
        if Path(fdict['path']).name == b'simple_input.txt':
            assert fdict['name'] == 'arg1'
            assert fdict['read_by_runs'] == [0]
            assert not fdict.get('written_by_runs')
            found |= 0x01
        elif Path(fdict['path']).name == b'simple_output.txt':
            assert fdict['name'] == 'arg2'
            assert not fdict.get('read_by_runs')
            assert fdict['written_by_runs'] == [0]
            found |= 0x02
        else:
            # No other inputs
            assert not fdict.get('read_by_runs')
    assert found == 0x03
    # Pack
    check_call(rpz + ['pack', '-d', 'rpz-simple', 'simple.rpz'])
    Path('simple').remove()
    # Info
    check_call(rpuz + ['info', 'simple.rpz'])
    # Show files
    check_call(rpuz + ['showfiles', 'simple.rpz'])
    # Lists packages
    check_call(rpuz + ['installpkgs', '--summary', 'simple.rpz'])
    # Unpack directory
    check_call(rpuz + ['directory', 'setup', 'simple.rpz', 'simpledir'])
    # Run directory
    check_simple(rpuz + ['directory', 'run', 'simpledir'], 'err')
    output_in_dir = join_root(Path('simpledir/root'), orig_output_location)
    with output_in_dir.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    # Delete with wrong command (should fail)
    p = subprocess.Popen(rpuz + ['chroot', 'destroy', 'simpledir'],
                         stderr=subprocess.PIPE)
    out, err = p.communicate()
    assert p.poll() != 0
    err = err.splitlines()
    assert b"Wrong unpacker used" in err[0]
    assert err[1].startswith(b"usage: ")
    # Delete directory
    check_call(rpuz + ['directory', 'destroy', 'simpledir'])
    # Unpack chroot
    check_call(sudo + rpuz + ['chroot', 'setup', '--bind-magic-dirs',
                              'simple.rpz', 'simplechroot'])
    try:
        output_in_chroot = join_root(Path('simplechroot/root'),
                                     orig_output_location)
        # Run chroot
        check_simple(sudo + rpuz + ['chroot', 'run', 'simplechroot'], 'err')
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Get output file
        check_call(sudo + rpuz + ['chroot', 'download', 'simplechroot',
                                  'arg2:output1.txt'])
        with Path('output1.txt').open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Replace input file
        check_call(sudo + rpuz + ['chroot', 'upload', 'simplechroot',
                                  '%s:arg1' % (tests / 'simple_input2.txt')])
        check_call(sudo + rpuz + ['chroot', 'upload', 'simplechroot'])
        # Run again
        check_simple(sudo + rpuz + ['chroot', 'run', 'simplechroot'], 'err', 2)
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '36'
        # Reset input file
        check_call(sudo + rpuz + ['chroot', 'upload', 'simplechroot', ':arg1'])
        # Run again
        check_simple(sudo + rpuz + ['chroot', 'run', 'simplechroot'], 'err')
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Delete with wrong command (should fail)
        p = subprocess.Popen(rpuz + ['directory', 'destroy', 'simplechroot'],
                             stderr=subprocess.PIPE)
        out, err = p.communicate()
        assert p.poll() != 0
        err = err.splitlines()
        assert b"Wrong unpacker used" in err[0]
        assert err[1].startswith(b"usage:")
    finally:
        # Delete chroot
        check_call(sudo + rpuz + ['chroot', 'destroy', 'simplechroot'])

    if not (tests / 'vagrant').exists():
        check_call(['sudo', 'sh', '-c',
                    'mkdir %(d)s; chmod 777 %(d)s' % {'d': tests / 'vagrant'}])

    # Unpack Vagrant-chroot
    check_call(rpuz + ['vagrant', 'setup/create', '--memory', '512',
                       '--use-chroot', 'simple.rpz',
                       (tests / 'vagrant/simplevagrantchroot').path])
    print("\nVagrant project set up in simplevagrantchroot")
    try:
        if run_vagrant:
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrantchroot').path],
                         'out')
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrantchroot').path,
                               'arg2:voutput1.txt'])
            with Path('voutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrantchroot').path,
                               '%s:arg1' % (tests / 'simple_input2.txt')])
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrantchroot').path])
            # Run again
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrantchroot').path],
                         'out', 2)
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrantchroot').path,
                               'arg2:voutput2.txt'])
            with Path('voutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Reset input file
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrantchroot').path,
                               ':arg1'])
            # Run again
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrantchroot').path],
                         'out')
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrantchroot').path,
                               'arg2:voutput1.txt'])
            with Path('voutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Destroy
            check_call(rpuz + ['vagrant', 'destroy',
                               (tests / 'vagrant/simplevagrantchroot').path])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if (tests / 'vagrant/simplevagrantchroot').exists():
            (tests / 'vagrant/simplevagrantchroot').rmtree()
    # Unpack Vagrant without chroot
    check_call(rpuz + ['vagrant', 'setup/create', '--dont-use-chroot',
                       'simple.rpz',
                       (tests / 'vagrant/simplevagrant').path])
    print("\nVagrant project set up in simplevagrant")
    try:
        if run_vagrant:
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrant').path],
                         'out')
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrant').path,
                               'arg2:woutput1.txt'])
            with Path('woutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrant').path,
                               '%s:arg1' % (tests / 'simple_input2.txt')])
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrant').path])
            # Run again
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrant').path],
                         'out', 2)
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrant').path,
                               'arg2:woutput2.txt'])
            with Path('woutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Reset input file
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrant').path,
                               ':arg1'])
            # Run again
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrant').path],
                         'out')
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrant').path,
                               'arg2:voutput1.txt'])
            with Path('voutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Destroy
            check_call(rpuz + ['vagrant', 'destroy',
                               (tests / 'vagrant/simplevagrant').path])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if (tests / 'vagrant/simplevagrant').exists():
            (tests / 'vagrant/simplevagrant').rmtree()

    # Unpack Docker
    check_call(rpuz + ['docker', 'setup/create', 'simple.rpz', 'simpledocker'])
    print("\nDocker project set up in simpledocker")
    try:
        if run_docker:
            check_call(rpuz + ['docker', 'setup/build', 'simpledocker'])
            check_simple(rpuz + ['docker', 'run', 'simpledocker'], 'out')
            # Get output file
            check_call(rpuz + ['docker', 'download', 'simpledocker',
                               'arg2:doutput1.txt'])
            with Path('doutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file
            check_call(rpuz + ['docker', 'upload', 'simpledocker',
                               '%s:arg1' % (tests / 'simple_input2.txt')])
            check_call(rpuz + ['docker', 'upload', 'simpledocker'])
            check_call(rpuz + ['showfiles', 'simpledocker'])
            # Run again
            check_simple(rpuz + ['docker', 'run', 'simpledocker'], 'out', 2)
            # Get output file
            check_call(rpuz + ['docker', 'download', 'simpledocker',
                               'arg2:doutput2.txt'])
            with Path('doutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Reset input file
            check_call(rpuz + ['docker', 'upload', 'simpledocker',
                               ':arg1'])
            # Run again
            check_simple(rpuz + ['docker', 'run', 'simpledocker'], 'out')
            # Get output file
            check_call(rpuz + ['docker', 'download', 'simpledocker',
                               'arg2:doutput1.txt'])
            with Path('doutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Destroy
            check_call(rpuz + ['docker', 'destroy', 'simpledocker'])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if Path('simpledocker').exists():
            Path('simpledocker').rmtree()

    # ########################################
    # 'threads' program: testrun
    #

    # Build
    build('threads', ['threads.c'], ['-lpthread'])
    # Trace
    output = check_output(rpz + ['testrun', './threads'], 'err')
    assert any(b'successfully exec\'d /bin/./echo' in l
               for l in output.splitlines())

    # ########################################
    # 'threads2' program: testrun
    #

    # Build
    build('threads2', ['threads2.c'], ['-lpthread'])
    # Trace
    output = check_output(rpz + ['testrun', './threads2'], 'err')
    assert any(b'successfully exec\'d /bin/echo' in l
               for l in output.splitlines())

    # ########################################
    # 'segv' program: testrun
    #

    # Build
    build('segv', ['segv.c'])
    # Trace
    check_call(rpz + ['testrun', './segv'])

    # ########################################
    # 'exec_echo' program: trace, pack, run --cmdline
    #

    # Build
    build('exec_echo', ['exec_echo.c'])
    # Trace
    check_call(rpz + ['trace', './exec_echo', 'originalexecechooutput'])
    # Pack
    check_call(rpz + ['pack', 'exec_echo.rpz'])
    # Unpack chroot
    check_call(sudo + rpuz + ['chroot', 'setup',
                              'exec_echo.rpz', 'echochroot'])
    try:
        # Run original command-line
        output = check_output(sudo + rpuz + ['chroot', 'run',
                                             'echochroot'])
        assert output == b'originalexecechooutput\n'
        # Prints out command-line
        output = check_output(sudo + rpuz + ['chroot', 'run',
                                             'echochroot', '--cmdline'])
        assert any(b'./exec_echo originalexecechooutput' == s.strip()
                   for s in output.split(b'\n'))
        # Run with different command-line
        output = check_output(sudo + rpuz + [
            'chroot', 'run', 'echochroot',
            '--cmdline', './exec_echo', 'changedexecechooutput'])
        assert output == b'changedexecechooutput\n'
    finally:
        check_call(sudo + rpuz + ['chroot', 'destroy', 'echochroot'])

    # ########################################
    # 'exec_echo' program: testrun
    # This is built with -m32 so that we transition:
    #   python (x64) -> exec_echo (i386) -> echo (x64)
    #

    if sys.maxsize > 2 ** 32:
        # Build
        build('exec_echo32', ['exec_echo.c'], ['-m32'])
        # Trace
        check_call(rpz + ['testrun', './exec_echo32 42'])
    else:
        print("Can't try exec_echo transitions: not running on 64bits")

    # ########################################
    # Tracing non-existing program
    #

    check_call(rpz + ['testrun', './doesntexist'])

    # ########################################
    # 'connect' program: testrun
    #

    # Build
    build('connect', ['connect.c'])
    # Trace
    err = check_output(rpz + ['testrun', './connect'], 'err')
    err = err.split(b'\n')
    assert not any(b'program exited with non-zero code' in l for l in err)
    assert any(re.search(br'process connected to [0-9.]+:80', l)
               for l in err)

    # ########################################
    # 'vfork' program: testrun
    #

    # Build
    build('vfork', ['vfork.c'])
    # Trace
    err = check_output(rpz + ['testrun', './vfork'], 'err')
    err = err.split(b'\n')
    assert not any(b'program exited with non-zero code' in l for l in err)

    # ########################################
    # 'rename' program: trace
    #

    # Build
    build('rename', ['rename.c'])
    # Trace
    check_call(rpz + ['trace', '-d', 'rename-trace', './rename'])
    with Path('rename-trace/config.yml').open(encoding='utf-8') as fp:
        config = yaml.safe_load(fp)
    # Check that written files were logged
    database = Path.cwd() / 'rename-trace/trace.sqlite3'
    if PY3:
        # On PY3, connect() only accepts unicode
        conn = sqlite3.connect(str(database))
    else:
        conn = sqlite3.connect(database.path)
    conn.row_factory = sqlite3.Row
    rows = conn.execute(
        '''
        SELECT name FROM opened_files
        ''')
    files = set(Path(r[0]) for r in rows)
    for n in ('dir1/file', 'dir2/file', 'dir2/brokensymlink', 'dir2/symlink'):
        if (Path.cwd() / n) not in files:
            raise AssertionError("Missing file: %s" % (Path.cwd() / n))
    conn.close()
    # Check that created files won't be packed
    for f in config.get('other_files'):
        if 'dir2' in Path(f).parent.components:
            raise AssertionError("Created file shouldn't be packed: %s" %
                                 Path(f))

    # ########################################
    # Test shebang corner-cases
    #

    Path('a').symlink('b')
    with Path('b').open('w') as fp:
        fp.write('#!%s 0\nsome content\n' % (Path.cwd() / 'c'))
    Path('b').chmod(0o744)
    Path('c').symlink('d')
    with Path('d').open('w') as fp:
        fp.write('#!e')
    Path('d').chmod(0o744)
    with Path('e').open('w') as fp:
        fp.write('#!/bin/echo')
    Path('e').chmod(0o744)

    # Trace
    out = check_output(rpz + ['trace', '--dont-identify-packages',
                              '-d', 'shebang-trace', './a', '1', '2'])
    out = out.splitlines()[0]
    assert out == ('e %s 0 ./a 1 2' % (Path.cwd() / 'c')).encode('ascii')

    # Check config
    with Path('shebang-trace/config.yml').open(encoding='utf-8') as fp:
        config = yaml.safe_load(fp)
    other_files = set(Path(f) for f in config['other_files']
                      if f.startswith('%s/' % Path.cwd()))

    # Check database
    database = Path.cwd() / 'shebang-trace/trace.sqlite3'
    if PY3:
        # On PY3, connect() only accepts unicode
        conn = sqlite3.connect(str(database))
    else:
        conn = sqlite3.connect(database.path)
    conn.row_factory = sqlite3.Row
    rows = conn.execute(
        '''
        SELECT name FROM opened_files
        ''')
    opened = [Path(r[0]) for r in rows
              if r[0].startswith('%s/' % Path.cwd())]
    rows = conn.execute(
        '''
        SELECT name, argv FROM executed_files
        ''')
    executed = [(Path(r[0]), r[1]) for r in rows
                if Path(r[0]).lies_under(Path.cwd())]

    print("other_files: %r" % sorted(other_files))
    print("opened: %r" % opened)
    print("executed: %r" % executed)

    assert other_files == set(Path.cwd() / p
                              for p in ('a', 'b', 'c', 'd', 'e'))
    if not bug13676:
        assert opened == [Path.cwd() / 'c', Path.cwd() / 'e']
        assert executed == [(Path.cwd() / 'a', './a\x001\x002\x00')]

    # ########################################
    # Test old packages
    #

    old_packages = [
        ('simple-0.4.0.rpz',
         'https://drive.google.com/uc?export=download&id=0B3ucPz7GSthBVG4xZW1V'
         'eDhXNTQ'),
        ('simple-0.6.0.rpz',
         'https://drive.google.com/uc?export=download&id=0B3ucPz7GSthBbl9SUjhr'
         'cUdtbGs'),
        ('simple-0.7.1.rpz',
         'https://drive.google.com/uc?export=download&id=0B3ucPz7GSthBRGp2Vm5V'
         'QVpWOGs'),
    ]
    for name, url in old_packages:
        print("Testing old package %s" % name)
        f = Path(name)
        if not f.exists():
            download_file(url, f)
        # Info
        check_call(rpuz + ['info', name])
        # Show files
        check_call(rpuz + ['showfiles', name])
        # Lists packages
        check_call(rpuz + ['installpkgs', '--summary', name])
        # Unpack directory
        check_call(rpuz + ['directory', 'setup', name, 'simpledir'])
        # Run directory
        check_simple(rpuz + ['directory', 'run', 'simpledir'], 'err')
        output_in_dir = Path('simpledir/root/tmp')
        output_in_dir = output_in_dir.listdir('reprozip_*')[0]
        output_in_dir = output_in_dir / 'simple_output.txt'
        with output_in_dir.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Delete with wrong command (should fail)
        p = subprocess.Popen(rpuz + ['chroot', 'destroy', 'simpledir'],
                             stderr=subprocess.PIPE)
        out, err = p.communicate()
        assert p.poll() != 0
        err = err.splitlines()
        assert b"Wrong unpacker used" in err[0]
        assert err[1].startswith(b"usage: ")
        # Delete directory
        check_call(rpuz + ['directory', 'destroy', 'simpledir'])

    # ########################################
    # Copies back coverage report
    #

    coverage = Path('.coverage')
    if coverage.exists():
        coverage.copyfile(tests.parent / '.coverage.runpy')
Example #13
0
def functional_tests(raise_warnings, interactive, run_vagrant, run_docker):
    python = [sys.executable]

    # Can't match on the SignalWarning category here because of a Python bug
    # http://bugs.python.org/issue22543
    python.extend(['-W', 'error:signal'])

    if 'COVER' in os.environ:
        python.extend(['-m'] + os.environ['COVER'].split(' '))

    reprozip_main = tests.parent / 'reprozip/reprozip/main.py'
    reprounzip_main = tests.parent / 'reprounzip/reprounzip/main.py'

    verbose = ['-v'] * 3
    rpz = python + [reprozip_main.absolute().path] + verbose
    rpuz = python + [reprounzip_main.absolute().path] + verbose

    # ########################################
    # 'simple' program: trace, pack, info, unpack
    #

    # Build
    build('simple', ['simple.c'])
    # Trace
    check_call(rpz + [
        'trace', '-d', 'rpz-simple', './simple',
        (tests / 'simple_input.txt').path, 'simple_output.txt'
    ])
    orig_output_location = Path('simple_output.txt').absolute()
    assert orig_output_location.is_file()
    with orig_output_location.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    orig_output_location.remove()
    # Read config
    with Path('rpz-simple/config.yml').open(encoding='utf-8') as fp:
        conf = yaml.safe_load(fp)
    other_files = set(Path(f).absolute() for f in conf['other_files'])
    expected = [Path('simple'), (tests / 'simple_input.txt')]
    assert other_files.issuperset([f.resolve() for f in expected])
    # Check input and output files
    input_files = conf['runs'][0]['input_files']
    assert (dict((k, Path(f).name) for k, f in iteritems(input_files)) == {
        'arg': b'simple_input.txt'
    })
    output_files = conf['runs'][0]['output_files']
    print(dict((k, Path(f).name) for k, f in iteritems(output_files)))
    # Here we don't test for dict equality, since we might have C coverage
    # files in the mix
    assert Path(output_files['arg']).name == b'simple_output.txt'
    # Pack
    check_call(rpz + ['pack', '-d', 'rpz-simple', 'simple.rpz'])
    Path('simple').remove()
    # Info
    check_call(rpuz + ['info', 'simple.rpz'])
    # Show files
    check_call(rpuz + ['showfiles', 'simple.rpz'])
    # Lists packages
    check_call(rpuz + ['installpkgs', '--summary', 'simple.rpz'])
    # Unpack directory
    check_call(rpuz + ['directory', 'setup', 'simple.rpz', 'simpledir'])
    # Run directory
    check_call(rpuz + ['directory', 'run', 'simpledir'])
    output_in_dir = join_root(Path('simpledir/root'), orig_output_location)
    with output_in_dir.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    # Delete with wrong command (should fail)
    assert call(rpuz + ['chroot', 'destroy', 'simpledir']) != 0
    # Delete directory
    check_call(rpuz + ['directory', 'destroy', 'simpledir'])
    # Unpack chroot
    check_call(
        ['sudo'] + rpuz +
        ['chroot', 'setup', '--bind-magic-dirs', 'simple.rpz', 'simplechroot'])
    # Run chroot
    check_call(['sudo'] + rpuz + ['chroot', 'run', 'simplechroot'])
    output_in_chroot = join_root(Path('simplechroot/root'),
                                 orig_output_location)
    with output_in_chroot.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    # Get output file
    check_call(['sudo'] + rpuz +
               ['chroot', 'download', 'simplechroot', 'arg:output1.txt'])
    with Path('output1.txt').open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    # Replace input file
    check_call(['sudo'] + rpuz + [
        'chroot', 'upload', 'simplechroot',
        '%s:arg' % (tests / 'simple_input2.txt')
    ])
    check_call(['sudo'] + rpuz + ['chroot', 'upload', 'simplechroot'])
    # Run again
    check_call(['sudo'] + rpuz + ['chroot', 'run', 'simplechroot'])
    output_in_chroot = join_root(Path('simplechroot/root'),
                                 orig_output_location)
    with output_in_chroot.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '36'
    # Delete with wrong command (should fail)
    assert call(rpuz + ['directory', 'destroy', 'simplechroot']) != 0
    # Delete chroot
    check_call(['sudo'] + rpuz + ['chroot', 'destroy', 'simplechroot'])

    if not Path('/vagrant').exists():
        check_call(['sudo', 'sh', '-c', 'mkdir /vagrant; chmod 777 /vagrant'])

    # Unpack Vagrant-chroot
    check_call(rpuz + [
        'vagrant', 'setup/create', '--use-chroot', 'simple.rpz',
        '/vagrant/simplevagrantchroot'
    ])
    print("\nVagrant project set up in simplevagrantchroot")
    try:
        if run_vagrant:
            check_call(rpuz + [
                'vagrant', 'run', '--no-stdin', '/vagrant/simplevagrantchroot'
            ])
            # Destroy
            check_call(rpuz +
                       ['vagrant', 'destroy', '/vagrant/simplevagrantchroot'])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if Path('/vagrant/simplevagrantchroot').exists():
            Path('/vagrant/simplevagrantchroot').rmtree()
    # Unpack Vagrant without chroot
    check_call(rpuz + [
        'vagrant', 'setup/create', '--dont-use-chroot', 'simple.rpz',
        '/vagrant/simplevagrant'
    ])
    print("\nVagrant project set up in simplevagrant")
    try:
        if run_vagrant:
            check_call(
                rpuz +
                ['vagrant', 'run', '--no-stdin', '/vagrant/simplevagrant'])
            # Destroy
            check_call(rpuz + ['vagrant', 'destroy', '/vagrant/simplevagrant'])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if Path('/vagrant/simplevagrant').exists():
            Path('/vagrant/simplevagrant').rmtree()

    # Unpack Docker
    check_call(rpuz + ['docker', 'setup/create', 'simple.rpz', 'simpledocker'])
    print("\nDocker project set up in simpledocker")
    try:
        if run_docker:
            check_call(rpuz + ['docker', 'setup/build', 'simpledocker'])
            check_call(rpuz + ['docker', 'run', 'simpledocker'])
            # Get output file
            check_call(
                rpuz +
                ['docker', 'download', 'simpledocker', 'arg:doutput1.txt'])
            with Path('doutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file
            check_call(rpuz + [
                'docker', 'upload', 'simpledocker',
                '%s:arg' % (tests / 'simple_input2.txt')
            ])
            check_call(rpuz + ['docker', 'upload', 'simpledocker'])
            check_call(rpuz + ['showfiles', 'simpledocker'])
            # Run again
            check_call(rpuz + ['docker', 'run', 'simpledocker'])
            # Get output file
            check_call(
                rpuz +
                ['docker', 'download', 'simpledocker', 'arg:doutput2.txt'])
            with Path('doutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Destroy
            check_call(rpuz + ['docker', 'destroy', 'simpledocker'])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if Path('simpledocker').exists():
            Path('simpledocker').rmtree()

    # ########################################
    # 'threads' program: testrun
    #

    # Build
    build('threads', ['threads.c'], ['-lpthread'])
    # Trace
    check_call(rpz + ['testrun', './threads'])

    # ########################################
    # 'segv' program: testrun
    #

    # Build
    build('segv', ['segv.c'])
    # Trace
    check_call(rpz + ['testrun', './segv'])

    # ########################################
    # 'exec_echo' program: trace, pack, run --cmdline
    #

    # Build
    build('exec_echo', ['exec_echo.c'])
    # Trace
    check_call(rpz + ['trace', './exec_echo', 'originalexecechooutput'])
    # Pack
    check_call(rpz + ['pack', 'exec_echo.rpz'])
    # Unpack chroot
    check_call(['sudo'] + rpuz +
               ['chroot', 'setup', 'exec_echo.rpz', 'echochroot'])
    try:
        # Run original command-line
        output = check_output(['sudo'] + rpuz +
                              ['chroot', 'run', 'echochroot'])
        assert output == b'originalexecechooutput\n'
        # Prints out command-line
        output = check_output(['sudo'] + rpuz +
                              ['chroot', 'run', 'echochroot', '--cmdline'])
        assert any(b'./exec_echo originalexecechooutput' == s.strip()
                   for s in output.split(b'\n'))
        # Run with different command-line
        output = check_output(['sudo'] + rpuz + [
            'chroot', 'run', 'echochroot', '--cmdline', './exec_echo',
            'changedexecechooutput'
        ])
        assert output == b'changedexecechooutput\n'
    finally:
        check_call(['sudo'] + rpuz + ['chroot', 'destroy', 'echochroot'])

    # ########################################
    # 'exec_echo' program: testrun
    # This is built with -m32 so that we transition:
    #   python (x64) -> exec_echo (i386) -> echo (x64)
    #

    if sys.maxsize > 2**32:
        # Build
        build('exec_echo32', ['exec_echo.c'], ['-m32'])
        # Trace
        check_call(rpz + ['testrun', './exec_echo32 42'])
    else:
        print("Can't try exec_echo transitions: not running on 64bits")

    # ########################################
    # Tracing non-existing program
    #

    check_call(rpz + ['testrun', './doesntexist'])

    # ########################################
    # 'connect' program: testrun
    #

    # Build
    build('connect', ['connect.c'])
    # Trace
    stderr = check_errout(rpz + ['testrun', './connect'])
    stderr = stderr.split(b'\n')
    assert not any(b'program exited with non-zero code' in l for l in stderr)
    assert any(
        re.search(br'process connected to [0-9.]+:80', l) for l in stderr)

    # ########################################
    # Copies back coverage report
    #

    coverage = Path('.coverage')
    if coverage.exists():
        coverage.copyfile(tests.parent / '.coverage.runpy')
Example #14
0
def functional_tests(raise_warnings, interactive, run_vagrant, run_docker):
    # Tests on Python < 2.7.3: need to use separate reprozip Python (with known
    # working version of Python)
    if sys.version_info < (2, 7, 3):
        bug13676 = True
        if 'REPROZIP_PYTHON' not in os.environ:
            sys.stderr.write("Error: using reprozip with Python %s!\n" %
                             sys.version.split(' ', 1)[0])
            sys.exit(1)
    else:
        bug13676 = False

    rpz = [os.environ.get('REPROZIP_PYTHON', sys.executable)]
    rpuz = [os.environ.get('REPROUNZIP_PYTHON', sys.executable)]

    # Can't match on the SignalWarning category here because of a Python bug
    # http://bugs.python.org/issue22543
    if raise_warnings:
        rpz.extend(['-W', 'error:signal'])
        rpuz.extend(['-W', 'error:signal'])

    if 'COVER' in os.environ:
        rpz.extend(['-m'] + os.environ['COVER'].split(' '))
        rpuz.extend(['-m'] + os.environ['COVER'].split(' '))

    reprozip_main = tests.parent / 'reprozip/reprozip/main.py'
    reprounzip_main = tests.parent / 'reprounzip/reprounzip/main.py'

    verbose = ['-v'] * 3
    rpz.extend([reprozip_main.absolute().path] + verbose)
    rpuz.extend([reprounzip_main.absolute().path] + verbose)

    print("Command lines are:\n%r\n%r" % (rpz, rpuz))

    # ########################################
    # testrun /bin/echo
    #

    output = check_output(rpz + ['testrun', '/bin/echo', 'outputhere'])
    assert any(b' 1 | /bin/echo outputhere ' in l
               for l in output.splitlines())

    output = check_output(rpz + ['testrun', '-a', '/fake/path/echo',
                                 '/bin/echo', 'outputhere'])
    assert any(b' 1 | (/bin/echo) /fake/path/echo outputhere ' in l
               for l in output.splitlines())

    # ########################################
    # testrun multiple commands
    #

    check_call(rpz + ['testrun', 'bash', '-c',
                      'cat ../../../../../etc/passwd;'
                      'cd /var/lib;'
                      'cat ../../etc/group'])
    check_call(rpz + ['trace',
                      'bash', '-c', 'cat /etc/passwd;echo'])
    check_call(rpz + ['trace', '--continue',
                      'sh', '-c', 'cat /etc/group;/usr/bin/id'])
    check_call(rpz + ['pack'])
    if not bug13676:
        check_call(rpuz + ['graph', 'graph.dot'])
        check_call(rpuz + ['graph', 'graph2.dot', 'experiment.rpz'])

    sudo = ['sudo', '-E']  # -E to keep REPROZIP_USAGE_STATS

    # ########################################
    # 'simple' program: trace, pack, info, unpack
    #

    def check_simple(args, stream, infile=1):
        output = check_output(args, stream).splitlines()
        try:
            first = output.index(b"Read 6 bytes")
        except ValueError:
            stderr.write("output = %r\n" % output)
            raise
        if infile == 1:
            assert output[first + 1] == b"a = 29, b = 13"
            assert output[first + 2] == b"result = 42"
        else:  # infile == 2
            assert output[first + 1] == b"a = 25, b = 11"
            assert output[first + 2] == b"result = 36"

    # Build
    build('simple', ['simple.c'])
    # Trace
    check_call(rpz + ['trace', '-d', 'rpz-simple',
                      './simple',
                      (tests / 'simple_input.txt').path,
                      'simple_output.txt'])
    orig_output_location = Path('simple_output.txt').absolute()
    assert orig_output_location.is_file()
    with orig_output_location.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    orig_output_location.remove()
    # Read config
    with Path('rpz-simple/config.yml').open(encoding='utf-8') as fp:
        conf = yaml.safe_load(fp)
    other_files = set(Path(f).absolute() for f in conf['other_files'])
    expected = [Path('simple'), (tests / 'simple_input.txt')]
    assert other_files.issuperset([f.resolve() for f in expected])
    # Check input and output files
    inputs_outputs = conf['inputs_outputs']
    # Exactly one input: "arg1", "...simple_input.txt"
    # Output: 'arg2', "...simple_output.txt"
    # There might be more output files: the C coverage files
    found = 0
    for fdict in inputs_outputs:
        if Path(fdict['path']).name == b'simple_input.txt':
            assert fdict['name'] == 'arg1'
            assert fdict['read_by_runs'] == [0]
            assert not fdict.get('written_by_runs')
            found |= 0x01
        elif Path(fdict['path']).name == b'simple_output.txt':
            assert fdict['name'] == 'arg2'
            assert not fdict.get('read_by_runs')
            assert fdict['written_by_runs'] == [0]
            found |= 0x02
        else:
            # No other inputs
            assert not fdict.get('read_by_runs')
    assert found == 0x03
    # Pack
    check_call(rpz + ['pack', '-d', 'rpz-simple', 'simple.rpz'])
    Path('simple').remove()
    # Info
    check_call(rpuz + ['info', 'simple.rpz'])
    # Show files
    check_call(rpuz + ['showfiles', 'simple.rpz'])
    # Lists packages
    check_call(rpuz + ['installpkgs', '--summary', 'simple.rpz'])
    # Unpack directory
    check_call(rpuz + ['directory', 'setup', 'simple.rpz', 'simpledir'])
    # Run directory
    check_simple(rpuz + ['directory', 'run', 'simpledir'], 'err')
    output_in_dir = join_root(Path('simpledir/root'), orig_output_location)
    with output_in_dir.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    # Delete with wrong command (should fail)
    p = subprocess.Popen(rpuz + ['chroot', 'destroy', 'simpledir'],
                         stderr=subprocess.PIPE)
    out, err = p.communicate()
    assert p.poll() != 0
    err = err.splitlines()
    assert b"Wrong unpacker used" in err[0]
    assert err[1].startswith(b"usage: ")
    # Delete directory
    check_call(rpuz + ['directory', 'destroy', 'simpledir'])
    # Unpack chroot
    check_call(sudo + rpuz + ['chroot', 'setup', '--bind-magic-dirs',
                              'simple.rpz', 'simplechroot'])
    try:
        output_in_chroot = join_root(Path('simplechroot/root'),
                                     orig_output_location)
        # Run chroot
        check_simple(sudo + rpuz + ['chroot', 'run', 'simplechroot'], 'err')
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Get output file
        check_call(sudo + rpuz + ['chroot', 'download', 'simplechroot',
                                  'arg2:output1.txt'])
        with Path('output1.txt').open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Replace input file
        check_call(sudo + rpuz + ['chroot', 'upload', 'simplechroot',
                                  '%s:arg1' % (tests / 'simple_input2.txt')])
        check_call(sudo + rpuz + ['chroot', 'upload', 'simplechroot'])
        # Run again
        check_simple(sudo + rpuz + ['chroot', 'run', 'simplechroot'], 'err', 2)
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '36'
        # Reset input file
        check_call(sudo + rpuz + ['chroot', 'upload', 'simplechroot', ':arg1'])
        # Run again
        check_simple(sudo + rpuz + ['chroot', 'run', 'simplechroot'], 'err')
        with output_in_chroot.open(encoding='utf-8') as fp:
            assert fp.read().strip() == '42'
        # Delete with wrong command (should fail)
        p = subprocess.Popen(rpuz + ['directory', 'destroy', 'simplechroot'],
                             stderr=subprocess.PIPE)
        out, err = p.communicate()
        assert p.poll() != 0
        err = err.splitlines()
        assert b"Wrong unpacker used" in err[0]
        assert err[1].startswith(b"usage:")
    finally:
        # Delete chroot
        check_call(sudo + rpuz + ['chroot', 'destroy', 'simplechroot'])

    if not (tests / 'vagrant').exists():
        check_call(['sudo', 'sh', '-c',
                    'mkdir %(d)s; chmod 777 %(d)s' % {'d': tests / 'vagrant'}])

    # Unpack Vagrant-chroot
    check_call(rpuz + ['vagrant', 'setup/create', '--use-chroot', 'simple.rpz',
                       (tests / 'vagrant/simplevagrantchroot').path])
    print("\nVagrant project set up in simplevagrantchroot")
    try:
        if run_vagrant:
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrantchroot').path],
                         'out')
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrantchroot').path,
                               'arg2:voutput1.txt'])
            with Path('voutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrantchroot').path,
                               '%s:arg1' % (tests / 'simple_input2.txt')])
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrantchroot').path])
            # Run again
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrantchroot').path],
                         'out', 2)
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrantchroot').path,
                               'arg2:voutput2.txt'])
            with Path('voutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Reset input file
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrantchroot').path,
                               ':arg1'])
            # Run again
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrantchroot').path],
                         'out')
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrantchroot').path,
                               'arg2:voutput1.txt'])
            with Path('voutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Destroy
            check_call(rpuz + ['vagrant', 'destroy',
                               (tests / 'vagrant/simplevagrantchroot').path])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if (tests / 'vagrant/simplevagrantchroot').exists():
            (tests / 'vagrant/simplevagrantchroot').rmtree()
    # Unpack Vagrant without chroot
    check_call(rpuz + ['vagrant', 'setup/create', '--dont-use-chroot',
                       'simple.rpz',
                       (tests / 'vagrant/simplevagrant').path])
    print("\nVagrant project set up in simplevagrant")
    try:
        if run_vagrant:
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrant').path],
                         'out')
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrant').path,
                               'arg2:woutput1.txt'])
            with Path('woutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrant').path,
                               '%s:arg1' % (tests / 'simple_input2.txt')])
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrant').path])
            # Run again
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrant').path],
                         'out', 2)
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrant').path,
                               'arg2:woutput2.txt'])
            with Path('woutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Reset input file
            check_call(rpuz + ['vagrant', 'upload',
                               (tests / 'vagrant/simplevagrant').path,
                               ':arg1'])
            # Run again
            check_simple(rpuz + ['vagrant', 'run', '--no-stdin',
                                 (tests / 'vagrant/simplevagrant').path],
                         'out')
            # Get output file
            check_call(rpuz + ['vagrant', 'download',
                               (tests / 'vagrant/simplevagrant').path,
                               'arg2:voutput1.txt'])
            with Path('voutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Destroy
            check_call(rpuz + ['vagrant', 'destroy',
                               (tests / 'vagrant/simplevagrant').path])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if (tests / 'vagrant/simplevagrant').exists():
            (tests / 'vagrant/simplevagrant').rmtree()

    # Unpack Docker
    check_call(rpuz + ['docker', 'setup/create', 'simple.rpz', 'simpledocker'])
    print("\nDocker project set up in simpledocker")
    try:
        if run_docker:
            check_call(rpuz + ['docker', 'setup/build', 'simpledocker'])
            check_simple(rpuz + ['docker', 'run', 'simpledocker'], 'out')
            # Get output file
            check_call(rpuz + ['docker', 'download', 'simpledocker',
                               'arg2:doutput1.txt'])
            with Path('doutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file
            check_call(rpuz + ['docker', 'upload', 'simpledocker',
                               '%s:arg1' % (tests / 'simple_input2.txt')])
            check_call(rpuz + ['docker', 'upload', 'simpledocker'])
            check_call(rpuz + ['showfiles', 'simpledocker'])
            # Run again
            check_simple(rpuz + ['docker', 'run', 'simpledocker'], 'out', 2)
            # Get output file
            check_call(rpuz + ['docker', 'download', 'simpledocker',
                               'arg2:doutput2.txt'])
            with Path('doutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Reset input file
            check_call(rpuz + ['docker', 'upload', 'simpledocker',
                               ':arg1'])
            # Run again
            check_simple(rpuz + ['docker', 'run', 'simpledocker'], 'out')
            # Get output file
            check_call(rpuz + ['docker', 'download', 'simpledocker',
                               'arg2:doutput1.txt'])
            with Path('doutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Destroy
            check_call(rpuz + ['docker', 'destroy', 'simpledocker'])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if Path('simpledocker').exists():
            Path('simpledocker').rmtree()

    # ########################################
    # 'threads' program: testrun
    #

    # Build
    build('threads', ['threads.c'], ['-lpthread'])
    # Trace
    output = check_output(rpz + ['testrun', './threads'], 'err')
    assert any(b'successfully exec\'d /bin/./echo' in l
               for l in output.splitlines())

    # ########################################
    # 'threads2' program: testrun
    #

    # Build
    build('threads2', ['threads2.c'], ['-lpthread'])
    # Trace
    output = check_output(rpz + ['testrun', './threads2'], 'err')
    assert any(b'successfully exec\'d /bin/echo' in l
               for l in output.splitlines())

    # ########################################
    # 'segv' program: testrun
    #

    # Build
    build('segv', ['segv.c'])
    # Trace
    check_call(rpz + ['testrun', './segv'])

    # ########################################
    # 'exec_echo' program: trace, pack, run --cmdline
    #

    # Build
    build('exec_echo', ['exec_echo.c'])
    # Trace
    check_call(rpz + ['trace', './exec_echo', 'originalexecechooutput'])
    # Pack
    check_call(rpz + ['pack', 'exec_echo.rpz'])
    # Unpack chroot
    check_call(sudo + rpuz + ['chroot', 'setup',
                              'exec_echo.rpz', 'echochroot'])
    try:
        # Run original command-line
        output = check_output(sudo + rpuz + ['chroot', 'run',
                                             'echochroot'])
        assert output == b'originalexecechooutput\n'
        # Prints out command-line
        output = check_output(sudo + rpuz + ['chroot', 'run',
                                             'echochroot', '--cmdline'])
        assert any(b'./exec_echo originalexecechooutput' == s.strip()
                   for s in output.split(b'\n'))
        # Run with different command-line
        output = check_output(sudo + rpuz + [
                'chroot', 'run', 'echochroot',
                '--cmdline', './exec_echo', 'changedexecechooutput'])
        assert output == b'changedexecechooutput\n'
    finally:
        check_call(sudo + rpuz + ['chroot', 'destroy', 'echochroot'])

    # ########################################
    # 'exec_echo' program: testrun
    # This is built with -m32 so that we transition:
    #   python (x64) -> exec_echo (i386) -> echo (x64)
    #

    if sys.maxsize > 2 ** 32:
        # Build
        build('exec_echo32', ['exec_echo.c'], ['-m32'])
        # Trace
        check_call(rpz + ['testrun', './exec_echo32 42'])
    else:
        print("Can't try exec_echo transitions: not running on 64bits")

    # ########################################
    # Tracing non-existing program
    #

    check_call(rpz + ['testrun', './doesntexist'])

    # ########################################
    # 'connect' program: testrun
    #

    # Build
    build('connect', ['connect.c'])
    # Trace
    err = check_output(rpz + ['testrun', './connect'], 'err')
    err = err.split(b'\n')
    assert not any(b'program exited with non-zero code' in l for l in err)
    assert any(re.search(br'process connected to [0-9.]+:80', l)
               for l in err)

    # ########################################
    # 'vfork' program: testrun
    #

    # Build
    build('vfork', ['vfork.c'])
    # Trace
    err = check_output(rpz + ['testrun', './vfork'], 'err')
    err = err.split(b'\n')
    assert not any(b'program exited with non-zero code' in l for l in err)

    # ########################################
    # 'rename' program: trace
    #

    # Build
    build('rename', ['rename.c'])
    # Trace
    check_call(rpz + ['trace', '-d', 'rename-trace', './rename'])
    with Path('rename-trace/config.yml').open(encoding='utf-8') as fp:
        config = yaml.safe_load(fp)
    # Check that written files were logged
    database = Path.cwd() / 'rename-trace/trace.sqlite3'
    if PY3:
        # On PY3, connect() only accepts unicode
        conn = sqlite3.connect(str(database))
    else:
        conn = sqlite3.connect(database.path)
    conn.row_factory = sqlite3.Row
    rows = conn.execute(
            '''
            SELECT name FROM opened_files
            ''')
    files = set(Path(r[0]) for r in rows)
    for n in ('dir1/file', 'dir2/file', 'dir2/brokensymlink', 'dir2/symlink'):
        if (Path.cwd() / n) not in files:
            raise AssertionError("Missing file: %s" % (Path.cwd() / n))
    conn.close()
    # Check that created files won't be packed
    for f in config.get('other_files'):
        if 'dir2' in Path(f).parent.components:
            raise AssertionError("Created file shouldn't be packed: %s" %
                                 Path(f))

    # ########################################
    # Copies back coverage report
    #

    coverage = Path('.coverage')
    if coverage.exists():
        coverage.copyfile(tests.parent / '.coverage.runpy')
Example #15
0
def functional_tests(raise_warnings, interactive, run_vagrant, run_docker):
    python = [sys.executable]

    # Can't match on the SignalWarning category here because of a Python bug
    # http://bugs.python.org/issue22543
    python.extend(['-W', 'error:signal'])

    if 'COVER' in os.environ:
        python.extend(['-m'] + os.environ['COVER'].split(' '))

    reprozip_main = tests.parent / 'reprozip/reprozip/main.py'
    reprounzip_main = tests.parent / 'reprounzip/reprounzip/main.py'

    verbose = ['-v'] * 3
    rpz = python + [reprozip_main.absolute().path] + verbose
    rpuz = python + [reprounzip_main.absolute().path] + verbose

    # ########################################
    # 'simple' program: trace, pack, info, unpack
    #

    # Build
    build('simple', ['simple.c'])
    # Trace
    check_call(rpz + ['trace', '-d', 'rpz-simple',
                      './simple',
                      (tests / 'simple_input.txt').path,
                      'simple_output.txt'])
    orig_output_location = Path('simple_output.txt').absolute()
    assert orig_output_location.is_file()
    with orig_output_location.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    orig_output_location.remove()
    # Read config
    with Path('rpz-simple/config.yml').open(encoding='utf-8') as fp:
        conf = yaml.safe_load(fp)
    other_files = set(Path(f).absolute() for f in conf['other_files'])
    expected = [Path('simple'), (tests / 'simple_input.txt')]
    assert other_files.issuperset([f.resolve() for f in expected])
    # Check input and output files
    input_files = conf['runs'][0]['input_files']
    assert (dict((k, Path(f).name)
                 for k, f in iteritems(input_files)) ==
            {'arg': b'simple_input.txt'})
    output_files = conf['runs'][0]['output_files']
    print(dict((k, Path(f).name) for k, f in iteritems(output_files)))
    # Here we don't test for dict equality, since we might have C coverage
    # files in the mix
    assert Path(output_files['arg']).name == b'simple_output.txt'
    # Pack
    check_call(rpz + ['pack', '-d', 'rpz-simple', 'simple.rpz'])
    Path('simple').remove()
    # Info
    check_call(rpuz + ['info', 'simple.rpz'])
    # Show files
    check_call(rpuz + ['showfiles', 'simple.rpz'])
    # Lists packages
    check_call(rpuz + ['installpkgs', '--summary', 'simple.rpz'])
    # Unpack directory
    check_call(rpuz + ['directory', 'setup', 'simple.rpz', 'simpledir'])
    # Run directory
    check_call(rpuz + ['directory', 'run', 'simpledir'])
    output_in_dir = join_root(Path('simpledir/root'), orig_output_location)
    with output_in_dir.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    # Delete with wrong command (should fail)
    assert call(rpuz + ['chroot', 'destroy', 'simpledir']) != 0
    # Delete directory
    check_call(rpuz + ['directory', 'destroy', 'simpledir'])
    # Unpack chroot
    check_call(['sudo'] + rpuz + ['chroot', 'setup', '--bind-magic-dirs',
                                  'simple.rpz', 'simplechroot'])
    # Run chroot
    check_call(['sudo'] + rpuz + ['chroot', 'run', 'simplechroot'])
    output_in_chroot = join_root(Path('simplechroot/root'),
                                 orig_output_location)
    with output_in_chroot.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    # Get output file
    check_call(['sudo'] + rpuz + ['chroot', 'download', 'simplechroot',
                                  'arg:output1.txt'])
    with Path('output1.txt').open(encoding='utf-8') as fp:
        assert fp.read().strip() == '42'
    # Replace input file
    check_call(['sudo'] + rpuz + ['chroot', 'upload', 'simplechroot',
                                  '%s:arg' % (tests / 'simple_input2.txt')])
    check_call(['sudo'] + rpuz + ['chroot', 'upload', 'simplechroot'])
    # Run again
    check_call(['sudo'] + rpuz + ['chroot', 'run', 'simplechroot'])
    output_in_chroot = join_root(Path('simplechroot/root'),
                                 orig_output_location)
    with output_in_chroot.open(encoding='utf-8') as fp:
        assert fp.read().strip() == '36'
    # Delete with wrong command (should fail)
    assert call(rpuz + ['directory', 'destroy', 'simplechroot']) != 0
    # Delete chroot
    check_call(['sudo'] + rpuz + ['chroot', 'destroy', 'simplechroot'])

    if not Path('/vagrant').exists():
        check_call(['sudo', 'sh', '-c', 'mkdir /vagrant; chmod 777 /vagrant'])

    # Unpack Vagrant-chroot
    check_call(rpuz + ['vagrant', 'setup/create', '--use-chroot', 'simple.rpz',
                       '/vagrant/simplevagrantchroot'])
    print("\nVagrant project set up in simplevagrantchroot")
    try:
        if run_vagrant:
            check_call(rpuz + ['vagrant', 'run', '--no-stdin',
                               '/vagrant/simplevagrantchroot'])
            # Destroy
            check_call(rpuz + ['vagrant', 'destroy',
                               '/vagrant/simplevagrantchroot'])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if Path('/vagrant/simplevagrantchroot').exists():
            Path('/vagrant/simplevagrantchroot').rmtree()
    # Unpack Vagrant without chroot
    check_call(rpuz + ['vagrant', 'setup/create', '--dont-use-chroot',
                       'simple.rpz',
                       '/vagrant/simplevagrant'])
    print("\nVagrant project set up in simplevagrant")
    try:
        if run_vagrant:
            check_call(rpuz + ['vagrant', 'run', '--no-stdin',
                               '/vagrant/simplevagrant'])
            # Destroy
            check_call(rpuz + ['vagrant', 'destroy', '/vagrant/simplevagrant'])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if Path('/vagrant/simplevagrant').exists():
            Path('/vagrant/simplevagrant').rmtree()

    # Unpack Docker
    check_call(rpuz + ['docker', 'setup/create', 'simple.rpz', 'simpledocker'])
    print("\nDocker project set up in simpledocker")
    try:
        if run_docker:
            check_call(rpuz + ['docker', 'setup/build', 'simpledocker'])
            check_call(rpuz + ['docker', 'run', 'simpledocker'])
            # Get output file
            check_call(rpuz + ['docker', 'download', 'simpledocker',
                               'arg:doutput1.txt'])
            with Path('doutput1.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '42'
            # Replace input file
            check_call(rpuz + ['docker', 'upload', 'simpledocker',
                               '%s:arg' % (tests / 'simple_input2.txt')])
            check_call(rpuz + ['docker', 'upload', 'simpledocker'])
            check_call(rpuz + ['showfiles', 'simpledocker'])
            # Run again
            check_call(rpuz + ['docker', 'run', 'simpledocker'])
            # Get output file
            check_call(rpuz + ['docker', 'download', 'simpledocker',
                               'arg:doutput2.txt'])
            with Path('doutput2.txt').open(encoding='utf-8') as fp:
                assert fp.read().strip() == '36'
            # Destroy
            check_call(rpuz + ['docker', 'destroy', 'simpledocker'])
        elif interactive:
            print("Test and press enter")
            sys.stdin.readline()
    finally:
        if Path('simpledocker').exists():
            Path('simpledocker').rmtree()

    # ########################################
    # 'threads' program: testrun
    #

    # Build
    build('threads', ['threads.c'], ['-lpthread'])
    # Trace
    check_call(rpz + ['testrun', './threads'])

    # ########################################
    # 'segv' program: testrun
    #

    # Build
    build('segv', ['segv.c'])
    # Trace
    check_call(rpz + ['testrun', './segv'])

    # ########################################
    # 'exec_echo' program: trace, pack, run --cmdline
    #

    # Build
    build('exec_echo', ['exec_echo.c'])
    # Trace
    check_call(rpz + ['trace', './exec_echo', 'originalexecechooutput'])
    # Pack
    check_call(rpz + ['pack', 'exec_echo.rpz'])
    # Unpack chroot
    check_call(['sudo'] + rpuz + ['chroot', 'setup',
                                  'exec_echo.rpz', 'echochroot'])
    try:
        # Run original command-line
        output = check_output(['sudo'] + rpuz + ['chroot', 'run',
                                                 'echochroot'])
        assert output == b'originalexecechooutput\n'
        # Prints out command-line
        output = check_output(['sudo'] + rpuz + ['chroot', 'run',
                                                 'echochroot', '--cmdline'])
        assert any(b'./exec_echo originalexecechooutput' == s.strip()
                   for s in output.split(b'\n'))
        # Run with different command-line
        output = check_output(['sudo'] + rpuz + [
                'chroot', 'run', 'echochroot',
                '--cmdline', './exec_echo', 'changedexecechooutput'])
        assert output == b'changedexecechooutput\n'
    finally:
        check_call(['sudo'] + rpuz + ['chroot', 'destroy', 'echochroot'])

    # ########################################
    # 'exec_echo' program: testrun
    # This is built with -m32 so that we transition:
    #   python (x64) -> exec_echo (i386) -> echo (x64)
    #

    if sys.maxsize > 2 ** 32:
        # Build
        build('exec_echo32', ['exec_echo.c'], ['-m32'])
        # Trace
        check_call(rpz + ['testrun', './exec_echo32 42'])
    else:
        print("Can't try exec_echo transitions: not running on 64bits")

    # ########################################
    # Tracing non-existing program
    #

    check_call(rpz + ['testrun', './doesntexist'])

    # ########################################
    # 'connect' program: testrun
    #

    # Build
    build('connect', ['connect.c'])
    # Trace
    stderr = check_errout(rpz + ['testrun', './connect'])
    stderr = stderr.split(b'\n')
    assert not any(b'program exited with non-zero code' in l for l in stderr)
    assert any(re.search(br'process connected to [0-9.]+:80', l)
               for l in stderr)

    # ########################################
    # Copies back coverage report
    #

    coverage = Path('.coverage')
    if coverage.exists():
        coverage.copyfile(tests.parent / '.coverage.runpy')