def test_path_search_which(self):
" which() finds an executable in $PATH and returns its abspath. "
fname = 'gcc'
bin_dir = tempfile.mkdtemp()
bin_path = os.path.join(bin_dir, fname)
save_path = os.environ['PATH']
try:
# setup
os.environ['PATH'] = bin_dir
with open(bin_path, 'w') as fp:
pass
# given non-executable,
os.chmod(bin_path, 0o400)
# exercise absolute and relative,
assert pexpect.which(bin_path) is None
assert pexpect.which(fname) is None
# given executable,
os.chmod(bin_path, 0o700)
# exercise absolute and relative,
assert pexpect.which(bin_path) == bin_path
assert pexpect.which(fname) == bin_path
finally:
# restore,
os.environ['PATH'] = save_path
# destroy scratch files and folders,
if os.path.exists(bin_path):
os.unlink(bin_path)
if os.path.exists(bin_dir):
os.rmdir(bin_dir)
def test_absolute_which(self):
# make up a path and insert first a non-executable,
# then, make it executable, and assert we may which() find it.
fname = 'gcc'
bin_dir = tempfile.mkdtemp()
bin_path = os.path.join(bin_dir, fname)
save_path = os.environ['PATH']
try:
# setup
os.environ['PATH'] = bin_dir
with open(bin_path, 'w') as fp:
fp.write('#!/bin/sh\necho hello, world\n')
os.chmod(bin_path, 0o400)
# it should not be found because it is not executable
assert pexpect.which(fname) is None, fname
# but now it should -- because it is executable
os.chmod(bin_path, 0o700)
assert pexpect.which(fname) == bin_path, (fname, bin_path)
finally:
# restore,
os.environ['PATH'] = save_path
# destroy scratch files and folders,
if os.path.exists(bin_path):
os.unlink(bin_path)
if os.path.exists(bin_dir):
os.rmdir(bin_dir)
def test_which_should_match_other_group_user(self):
" which() returns executables by other, group, and user ownership. "
# create an executable and test that it is found using which() for
# each of the 'other', 'group', and 'user' permission bits.
fname = 'g77'
bin_dir = tempfile.mkdtemp()
bin_path = os.path.join(bin_dir, fname)
save_path = os.environ['PATH']
try:
# setup
os.environ['PATH'] = bin_dir
with open(bin_path, 'w') as fp:
fp.write('#!/bin/sh\necho hello, world\n')
for should_match, mode in ((False, 0o000), (True, 0o005),
(True, 0o050), (True, 0o500), (False,
0o004),
(False, 0o040), (False, 0o400)):
os.chmod(bin_path, mode)
if not should_match:
# should not be found because it is not executable
assert pexpect.which(fname) is None
else:
# should match full path
assert pexpect.which(fname) == bin_path
finally:
# restore,
os.environ['PATH'] = save_path
# destroy scratch files and folders,
if os.path.exists(bin_path):
os.unlink(bin_path)
if os.path.exists(bin_dir):
os.rmdir(bin_dir)
def test_which_follows_symlink(self):
" which() follows symlinks and returns its path. "
fname = 'original'
symname = 'extra-crispy'
bin_dir = tempfile.mkdtemp()
bin_path = os.path.join(bin_dir, fname)
sym_path = os.path.join(bin_dir, symname)
save_path = os.environ['PATH']
try:
# setup
os.environ['PATH'] = bin_dir
with open(bin_path, 'w') as fp:
pass
os.chmod(bin_path, 0o400)
os.symlink(bin_path, sym_path)
# should not be found because symlink points to non-executable
assert pexpect.which(symname) is None
# but now it should -- because it is executable
os.chmod(bin_path, 0o700)
assert pexpect.which(symname) == sym_path
finally:
# restore,
os.environ['PATH'] = save_path
# destroy scratch files, symlinks, and folders,
if os.path.exists(sym_path):
os.unlink(sym_path)
if os.path.exists(bin_path):
os.unlink(bin_path)
if os.path.exists(bin_dir):
os.rmdir(bin_dir)
def test_which_follows_symlink(self):
" which() follows symlinks and returns its path. "
fname = 'original'
symname = 'extra-crispy'
bin_dir = tempfile.mkdtemp()
bin_path = os.path.join(bin_dir, fname)
sym_path = os.path.join(bin_dir, symname)
save_path = os.environ['PATH']
try:
# setup
os.environ['PATH'] = bin_dir
with open(bin_path, 'w') as fp:
pass
os.chmod(bin_path, 0o400)
os.symlink(bin_path, sym_path)
# should not be found because symlink points to non-executable
assert pexpect.which(symname) is None
# but now it should -- because it is executable
os.chmod(bin_path, 0o700)
assert pexpect.which(symname) == sym_path
finally:
# restore,
os.environ['PATH'] = save_path
# destroy scratch files, symlinks, and folders,
if os.path.exists(sym_path):
os.unlink(sym_path)
if os.path.exists(bin_path):
os.unlink(bin_path)
if os.path.exists(bin_dir):
os.rmdir(bin_dir)
def test_path_search_which(self):
" which() finds an executable in $PATH and returns its abspath. "
fname = 'gcc'
bin_dir = tempfile.mkdtemp()
bin_path = os.path.join(bin_dir, fname)
save_path = os.environ['PATH']
try:
# setup
os.environ['PATH'] = bin_dir
with open(bin_path, 'w') as fp:
pass
# given non-executable,
os.chmod(bin_path, 0o400)
# exercise absolute and relative,
assert pexpect.which(bin_path) is None
assert pexpect.which(fname) is None
# given executable,
os.chmod(bin_path, 0o700)
# exercise absolute and relative,
assert pexpect.which(bin_path) == bin_path
assert pexpect.which(fname) == bin_path
finally:
# restore,
os.environ['PATH'] = save_path
# destroy scratch files and folders,
if os.path.exists(bin_path):
os.unlink(bin_path)
if os.path.exists(bin_dir):
os.rmdir(bin_dir)
def call_editor(filename):
editor = os.getenv("EDITOR")
if editor is None:
editor = pexpect.which("vim")
if editor is None:
editor = pexpect.which("vi")
if editor is None:
raise StandardError("Can't find an editor")
os.system("%s %s" % (editor, filename))
def test_which (self):
p = os.defpath
ep = os.environ['PATH']
os.defpath = ":/tmp"
os.environ['PATH'] = ":/tmp"
wp = pexpect.which ("ticker.py")
assert wp == 'ticker.py', "Should return a string. Returned %s" % wp
os.defpath = "/tmp"
os.environ['PATH'] = "/tmp"
wp = pexpect.which ("ticker.py")
assert wp == None, "Executable should not be found. Returned %s" % wp
os.defpath = p
os.environ['PATH'] = ep
def test_which(self):
p = os.defpath
ep = os.environ['PATH']
os.defpath = ":/tmp"
os.environ['PATH'] = ":/tmp"
wp = pexpect.which("ticker.py")
assert wp == 'ticker.py', "Should return a string. Returned %s" % wp
os.defpath = "/tmp"
os.environ['PATH'] = "/tmp"
wp = pexpect.which("ticker.py")
assert wp == None, "Executable should not be found. Returned %s" % wp
os.defpath = p
os.environ['PATH'] = ep
def __init__(self,
gdb='riscv64-unknown-elf-gdb',
openocd='openocd',
openocd_config_filename='./testing/targets/ssith_gfe.cfg',
timeout=60):
print_and_log("Starting GDB session...")
if not which(gdb):
raise GdbError('Executable {} not found'.format(gdb))
if not which(openocd):
raise GdbError('Executable {} not found'.format(openocd))
xlen = 32 # Default
try:
run_and_log(print_and_log("Starting openocd"), run([openocd, '-f', openocd_config_filename], \
timeout=0.5, stdout=PIPE, stderr=PIPE))
except TimeoutExpired as exc:
log = str(exc.stderr, encoding='utf-8')
match = re.search('XLEN=(32|64)', log)
if match:
xlen = int(match.group(1))
else:
raise GdbError('XLEN not found by OpenOCD')
# Create temporary files for gdb and openocd. The `NamedTemporaryFile`
# objects are stored in `self` so the files stay around as long as this
# `GdbSession` is in use. We open both in text mode, instead of the
# default 'w+b'.
self.openocd_log = tempfile.NamedTemporaryFile(mode='w',
prefix='openocd.',
suffix='.log')
self.gdb_log = tempfile.NamedTemporaryFile(mode='w',
prefix='gdb.',
suffix='.log')
init_cmds = '\n'.join([
'set confirm off', 'set pagination off'
'set width 0', 'set height 0', 'set print entry-values no',
'set remotetimeout {}'.format(timeout),
'set arch riscv:rv{}'.format(xlen),
'target remote | {} -c "gdb_port pipe; log_output {}" -f {}'.
format(openocd, self.openocd_log.name, openocd_config_filename)
])
self.pty = spawn(gdb,
encoding='utf-8',
logfile=self.gdb_log,
timeout=timeout)
self.repl = REPLWrapper(self.pty,
'(gdb) ',
None,
extra_init_cmd=init_cmds)
def test_os_defpath_which(self):
" which() finds an executable in $PATH and returns its abspath. "
bin_dir = tempfile.mkdtemp()
if sys.getfilesystemencoding() in ("ascii", "ANSI_X3.4-1968"):
prefix = "ascii-"
else:
prefix = u"ǝpoɔıun-"
temp_obj = tempfile.NamedTemporaryFile(suffix=u".sh",
prefix=prefix,
dir=bin_dir,
delete=False)
bin_path = temp_obj.name
fname = os.path.basename(temp_obj.name)
save_path = os.environ["PATH"]
save_defpath = os.defpath
try:
# setup
os.environ["PATH"] = ""
os.defpath = bin_dir
with open(bin_path, "w") as fp:
pass
# given non-executable,
os.chmod(bin_path, 0o400)
# exercise absolute and relative,
assert pexpect.which(bin_path) is None
assert pexpect.which(fname) is None
# given executable,
os.chmod(bin_path, 0o700)
# exercise absolute and relative,
assert pexpect.which(bin_path) == bin_path
assert pexpect.which(fname) == bin_path
finally:
# restore,
os.environ["PATH"] = save_path
os.defpath = save_defpath
# destroy scratch files and folders,
if os.path.exists(bin_path):
os.unlink(bin_path)
if os.path.exists(bin_dir):
os.rmdir(bin_dir)
async def test_telnet_client_cmdline(bind_host, unused_tcp_port, event_loop):
"""Test executing telnetlib3/client.py as client"""
# this code may be reduced when pexpect asyncio is bugfixed ..
# we especially need pexpect to pass sys.stdin.isatty() test.
prog = pexpect.which('telnetlib3-client')
args = [prog, bind_host, str(unused_tcp_port), '--loglevel=info',
'--connect-minwait=0.05', '--connect-maxwait=0.05']
class HelloServer(asyncio.Protocol):
def connection_made(self, transport):
super().connection_made(transport)
transport.write(b'hello, space cadet.\r\n')
# hangup
event_loop.call_soon(transport.close)
# start vanilla tcp server
await event_loop.create_server(HelloServer,
bind_host, unused_tcp_port)
proc = await asyncio.create_subprocess_exec(
*args, loop=event_loop,
stdin=asyncio.subprocess.PIPE,
stdout=asyncio.subprocess.PIPE)
line = await asyncio.wait_for(proc.stdout.readline(), 1.5)
assert line.strip() == b"Escape character is '^]'."
line = await asyncio.wait_for(proc.stdout.readline(), 1.5)
assert line.strip() == b'hello, space cadet.'
# message received, expect the client to gracefully quit.
out, err = await asyncio.wait_for(proc.communicate(), 1)
assert out == b'\x1b[m\nConnection closed by foreign host.\n'
def req_check(self):
# check pexpect
# check BlueZ
# gatttool path
#self.gatttool_path = "/usr/local/bluez5/attrib/gatttool"
self.gatttool_path = pexpect.which('gatttool')
if not self.gatttool_path:
return "Please install the BlueZ stack: 'apt-get install bluez'"
# if there is no MAC set, try to search for a drone (requires root)
if not self.mac:
if os.geteuid() != 0:
return "Drone MAC missing. Init with 'mac=' or run as root to scan."
lescan = pexpect.spawn("hcitool lescan")
index = lescan.expect(P_OUIS, timeout=5)
if index != 0:
return "Couldn't find any drones nearby."
self.mac = lescan.after
self.cb(0, "Drone found! MAC: " + self.mac)
elif not re.match(P_MAC, self.mac):
return "Drone MAC format incorrect, please check it. Format: XX:XX:XX:XX:XX:XX"
self.cb(0, "Everything seems to be alright, time to fly!")
return None
def test_newtool(tmpdir):
"""
Run 'pytool newtool testtool' while testtool.py does not exist.
Verify that testtool.py is created and has the right contents.
"""
pytest.debug_func()
toolname = toyfile(tmpdir, "testtool.py")
toollink = toyfile(tmpdir, "testtool")
with U.Chdir(tmpdir.strpath):
cmd = pexpect.which("pytool")
if cmd is None:
pytest.skip("pytool not found")
S = pexpect.spawn("{} newtool {} tt".format(cmd, toollink.strpath))
which = S.expect([r'Are you sure\? >',
'Error:',
pexpect.EOF])
if which == 0:
S.sendline('no')
S.expect(pexpect.EOF)
pytest.fail('should not have asked about overwriting')
elif which == 1:
print S.before + S.after
pytest.fail('unexpected exception')
assert toolname.strpath == toollink.readlink()
expected = expected_testtool_py()
got = toolname.read().split("\n")
assert got == expected
def test_newpy_overwriting_no(tmpdir):
"""
Run 'pytool newpy xyzzy' when xyzzy already exists. Verify
that confirmation is requested. Answer 'no' and verify that
the existing file is not overwritten.
"""
pytest.debug_func()
xyzzy = toyfile(tmpdir, "xyzzy", content="original xyzzy\n")
xyzzy_py = toyfile(tmpdir, "xyzzy.py", content="original xyzzy.py\n")
with U.Chdir(tmpdir.strpath):
cmd = pexpect.which("pytool")
S = pexpect.spawn("{} newpy xyzzy".format(cmd))
which = S.expect([r'you sure\? >',
'Error:',
pexpect.EOF])
if which == 0:
S.sendline('no')
S.expect(pexpect.EOF)
elif which == 1:
print S.before + S.after
pytest.fail('unexpected exception')
else:
pytest.fail('should have asked about overwriting xyzzy')
expected = ['original xyzzy']
got = U.contents(xyzzy.strpath)
assert got == expected
expected = ['original xyzzy.py']
got = U.contents(xyzzy_py.strpath)
assert got == expected
def test_newpy_overwriting_yes(tmpdir):
"""
Run 'pytool newpy xyzzy' when xyzzy, xyzzy.py already exist.
Verify that confirmation is requested. Answer 'yes' and verify
that the existing file IS overwritten.
"""
pytest.debug_func()
xyzzy = toyfile(tmpdir, "xyzzy", content="original xyzzy")
xyzzy_py = toyfile(tmpdir, "xyzzy.py", content="original xyzzy.py")
with U.Chdir(tmpdir.strpath):
cmd = pexpect.which('pytool')
S = pexpect.spawn('%s newpy %s' % (cmd, xyzzy.strpath))
which = S.expect([r'Are you sure\? >',
'Error:',
pexpect.EOF])
if which == 0:
S.sendline('yes')
S.expect(pexpect.EOF)
elif which == 1:
print S.before + S.after
pytest.fail('unexpected exception')
else:
pytest.fail('should have asked about overwriting xyzzy')
exp = os.path.abspath(xyzzy_py.strpath)
got = os.readlink(xyzzy.strpath)
assert got == exp
expected = expected_xyzzy_py()
got = U.contents(xyzzy_py.strpath)
assert got == expected
def check_missing_requirements ():
"""This list of missing requirements (mencoder, mplayer, lame, and mkvmerge).
Returns None if all requirements are in the execution path.
"""
missing = []
if pexpect.which("mencoder") is None:
missing.append("mencoder")
if pexpect.which("mplayer") is None:
missing.append("mplayer")
#if pexpect.which("lame") is None:
# missing.append("lame")
#if pexpect.which("mkvmerge") is None:
# missing.append("mkvmerge")
if len(missing)==0:
return None
return missing
def test_newtool_overwriting_yes(tmpdir):
"""
Run 'pytool newtool testtool tt' while testtool.py exists. Verify that
we are prompted about overwriting. Answer 'yes' and verify that the
original file is overwritten.
"""
pytest.debug_func()
tname = toyfile(tmpdir, "testtool.py", content=["original testtool.py"])
tlink = toyfile(tmpdir, "testtool", content=["original testtool"])
with U.Chdir(tmpdir.strpath):
cmd = pexpect.which("pytool")
if cmd is None:
pytest.skip("pytool not found")
S = pexpect.spawn("{} newtool {} tt".format(cmd, tlink))
which = S.expect([r'Are you sure\? >',
'Error:',
pexpect.EOF])
if which == 0:
S.sendline('yes')
S.expect(pexpect.EOF)
elif which == 1:
print S.before + S.after
pytest.fail('unexpected exception')
else:
pytest.fail("should have asked about overwriting {}".format(tname))
exp = tname.strpath
actual = tlink.readlink()
assert actual == exp
expected = expected_testtool_py()
got = tname.read().split("\n")
assert got == expected
def sh(self):
if self._sh is None:
self._sh = pexpect.which('sh')
if self._sh is None:
raise OSError('"sh" shell not found')
return self._sh
async def test_telnet_client_cmdline(bind_host, unused_tcp_port):
"""Test executing asynctelnet/client.py as client"""
# this code may be reduced when pexpect asyncio is bugfixed ..
# we especially need pexpect to pass sys.stdin.isatty() test.
prog = pexpect.which('asynctelnet-client')
args = [
prog, bind_host,
str(unused_tcp_port), '--loglevel=info', '--connect-minwait=0.05',
'--connect-maxwait=0.05'
]
class HelloServer(asyncio.Protocol):
def connection_made(self, transport):
super().connection_made(transport)
transport.write(b'hello, space cadet.\r\n')
# hangup
event_loop.call_soon(transport.close)
# start vanilla tcp server
await event_loop.create_server(HelloServer, bind_host, unused_tcp_port)
proc = await asyncio.create_subprocess_exec(*args,
stdin=asyncio.subprocess.PIPE,
stdout=asyncio.subprocess.PIPE)
line = await asyncio.wait_for(proc.stdout.readline(), 1.5)
assert line.strip() == b"Escape character is '^]'."
line = await asyncio.wait_for(proc.stdout.readline(), 1.5)
assert line.strip() == b'hello, space cadet.'
# message received, expect the client to gracefully quit.
out, err = await asyncio.wait_for(proc.communicate(), 1)
assert out == b'\x1b[m\nConnection closed by foreign host.\n'
def sh(self):
if self._sh is None:
self._sh = pexpect.which('sh')
if self._sh is None:
raise OSError('"sh" shell not found')
return self._sh
def test_which_should_not_match_folders(self):
" Which does not match folders, even though they are executable. "
# make up a path and insert a folder that is 'executable', a naive
# implementation might match (previously pexpect versions 3.2 and
# sh versions 1.0.8, reported by @lcm337.)
fname = 'g++'
bin_dir = tempfile.mkdtemp()
bin_dir2 = os.path.join(bin_dir, fname)
save_path = os.environ['PATH']
try:
os.environ['PATH'] = bin_dir
os.mkdir(bin_dir2, 0o755)
# should not be found because it is not executable *file*,
# but rather, has the executable bit set, as a good folder
# should -- it should not be returned because it fails isdir()
exercise = pexpect.which(fname)
assert exercise is None
finally:
# restore,
os.environ['PATH'] = save_path
# destroy scratch folders,
for _dir in (
bin_dir2,
bin_dir,
):
if os.path.exists(_dir):
os.rmdir(_dir)
def test_which_should_not_match_folders(self):
" Which does not match folders, even though they are executable. "
# make up a path and insert a folder that is 'executable', a naive
# implementation might match (previously pexpect versions 3.2 and
# sh versions 1.0.8, reported by @lcm337.)
fname = 'g++'
bin_dir = tempfile.mkdtemp()
bin_dir2 = os.path.join(bin_dir, fname)
save_path = os.environ['PATH']
try:
os.environ['PATH'] = bin_dir
os.mkdir(bin_dir2, 0o755)
# should not be found because it is not executable *file*,
# but rather, has the executable bit set, as a good folder
# should -- it should not be returned because it fails isdir()
exercise = pexpect.which(fname)
assert exercise is None
finally:
# restore,
os.environ['PATH'] = save_path
# destroy scratch folders,
for _dir in (bin_dir2, bin_dir,):
if os.path.exists(_dir):
os.rmdir(_dir)
def test_newtool_overwriting_no(tmpdir):
"""
Run 'pytool newtool testtool tt' while testtool.py does exist. Verify
that we are prompted about overwriting. Answer 'no' and verify that the
original file is not overwritten.
"""
pytest.debug_func()
tname = toyfile(tmpdir, "testtool.py", content=["original testtool.py"])
tlink = toyfile(tmpdir, "testtool", content=["original testtool"])
with U.Chdir(tmpdir.strpath):
cmd = pexpect.which("pytool")
if cmd is None:
pytest.skip("pytool not found")
S = pexpect.spawn("{} newtool {} tt".format(cmd, tlink))
which = S.expect([r'Are you sure\? >',
'Error:',
pexpect.EOF])
if which == 0:
S.sendline('no')
S.expect(pexpect.EOF)
elif which == 1:
print S.before + S.after
pytest.fail('unexpected exception')
else:
pytest.fail("should have asked about overwriting {}".format(tname))
for fname in [tlink, tname]:
exp = "original %s" % fname.basename
got = fname.read()
assert got == exp
def test_telnet_client_cmdline_stdin_pipe(bind_host, unused_tcp_port,
event_loop):
"""Test sending data through command-line client (by os PIPE)."""
# this code may be reduced when pexpect asyncio is bugfixed ..
# we especially need pexpect to pass sys.stdin.isatty() test.
prog = pexpect.which('telnetlib3-client')
fd, logfile = tempfile.mkstemp(prefix='telnetlib3', suffix='.log')
os.close(fd)
args = [
prog, bind_host,
str(unused_tcp_port), '--loglevel=info', '--connect-minwait=0.15',
'--connect-maxwait=0.15', '--logfile={0}'.format(logfile)
]
@asyncio.coroutine
def shell(reader, writer):
writer.write('Press Return to continue:')
inp = yield from reader.readline()
if inp:
writer.echo(inp)
writer.write('\ngoodbye.\n')
yield from writer.drain()
writer.close()
# start server
yield from telnetlib3.create_server(host=bind_host,
port=unused_tcp_port,
shell=shell,
loop=event_loop,
connect_maxwait=0.05)
# start client by way of pipe
proc = yield from asyncio.create_subprocess_exec(
*args,
loop=event_loop,
stdin=asyncio.subprocess.PIPE,
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE)
#line = yield from asyncio.wait_for(proc.stdout.readline(), 1.5)
#assert line.strip() == b"Escape character is '^]'."
# message received, expect the client to gracefully quit.
stdout, stderr = yield from asyncio.wait_for(proc.communicate(b'\r'), 2)
# And finally, analyze the contents of the logfile,
# - 2016-03-18 20:19:25,227 INFO client_base.py:113 Connected to <Peer 127.0.0.1 51237>
# - 2016-03-18 20:19:25,286 INFO client_base.py:67 Connection closed to <Peer 127.0.0.1 51237>
logfile_output = open(logfile).read().splitlines()
assert stdout == (b"Escape character is '^]'.\n"
b"Press Return to continue:\r\ngoodbye.\n"
b"\x1b[m\nConnection closed by foreign host.\n")
# verify,
assert len(logfile_output) == 2, logfile
assert 'Connected to <Peer' in logfile_output[0], logfile
assert 'Connection closed to <Peer' in logfile_output[1], logfile
os.unlink(logfile)
def test_bash_which(self):
"""
Calling bash_which('emacs') should get back a string with a path to the
emacs executable
"""
self.dbgfunc()
self.assertEq(pexpect.which("emacs"),
bscr.bash_which("emacs"))
def cmdline():
binpath = pexpect.which('gnuchess')
if binpath is None:
utils.log.error('cannot find gnuchess on this system')
args = ['--xboard']
return [binpath] + args
def cmdline():
binpath = pexpect.which('gnuchess')
if binpath is None:
utils.log.error('cannot find gnuchess on this system')
args = ['--xboard']
return [binpath] + args
def test_ascii(fx_ascii):
"""
Run ascii and see if its output matches what is expected.
"""
pytest.debug_func()
cmd = pexpect.which("ascii")
result = pexpect.run(cmd)
assert "\r\n".join(fx_ascii.exp) == result
def script_which_command(self, cmdname):
"""
ScriptBase: Make sure the tcc command exists and is executable
"""
cmd = pexpect.which(cmdname)
if cmd is None:
cmd = "bin/" + cmdname
self.assertTrue(os.access(cmd, os.X_OK))
def sh(self):
if self._sh is None:
shell_name = os.environ.get("SHELL", "sh")
self._sh = pexpect.which(shell_name)
if self._sh is None:
raise OSError('"{}" shell not found'.format(shell_name))
return self._sh
def test_final_newline(fx_ascii):
"""
Run ascii and verify output ends with a newline
"""
pytest.debug_func()
cmd = pexpect.which("ascii")
result = pexpect.run(cmd)
assert "\r\n".join(fx_ascii.exp) == result
def setup_commands():
"""
Bootstrap the PATH to have /usr/local/bin, where the op command should be
"""
os.environ["PATH"] += os.pathsep + '/usr/local/bin'
basecmd = 'op'
cmdpath = pexpect.which(basecmd)
return cmdpath
def script_which_command(self, cmdname):
"""
ScriptBase: Make sure the tcc command exists and is executable
"""
cmd = pexpect.which(cmdname)
if cmd is None:
cmd = "bin/" + cmdname
self.assertTrue(os.access(cmd, os.X_OK))
def run(cmd, args, log):
"""
Execute CMD with argument ARGS in a subshell with pty.
CMD: The command.
ARGS: The command arguments.
"""
# print(cmd, args, log)
if not pexpect.which(cmd):
raise click.UsageError(f"ERROR: Command '{cmd}' not found.")
logfile = None
if log:
logfile = open(log, 'a')
cols, rows = shutil.get_terminal_size(fallback=(400, 100))
process = pexpect.spawn(f'{cmd} {" ".join(args)}', dimensions=(rows, cols))
patterns = process.compile_pattern_list([
'\r\n',
'\r',
pexpect.TIMEOUT,
pexpect.EOF,
])
while True:
index = process.expect(patterns, timeout=60)
# Newline
if index == 0:
text = process.before.decode('utf-8')
print(text, flush=True)
if log:
print(text, file=logfile)
# Carriage return
elif index == 1:
if not process.before:
continue
text = process.before.decode('utf-8')
print(text, flush=True)
if log:
print(text, file=logfile)
# Timeout
elif index == 2:
print('<pytee: 60 sec elapsed without new input>')
continue
else:
break
process.close()
# print(process.exitstatus, process.signalstatus)
#raise SystemExit(process.exitstatus)
return process.exitstatus
def _path_for(self, cmd):
if cmd in self._bin_paths:
return self._bin_paths[cmd]
else:
path = pexpect.which(cmd)
if path is None:
raise CommandNotFoundError("failed to find path of %r" % cmd)
self._bin_paths[cmd] = path
return path
def test_ascii_help():
"""
Run 'ascii --help' and validate the output
"""
pytest.debug_func()
cmd = pexpect.which("ascii")
result = pexpect.run("%s --help" % cmd)
exp = "Display ASCII collating sequence"
assert exp in result
def _path_for(self, cmd):
if cmd in self._bin_paths:
return self._bin_paths[cmd]
else:
path = pexpect.which(cmd)
if path is None:
raise CommandNotFoundError('failed to find path of %r' % cmd)
self._bin_paths[cmd] = path
return path
def check_dependencies(commands=[]):
"""Check for the existence of required commands, and sudo access"""
# Check for sudo
if pexpect.which("sudo") is None:
return False
# Check for required commands
for command in commands:
if pexpect.which(command) is None:
return False
# Check for LANG requirements
child = None
try:
child = env_spawn('sudo', ['-v'], 1)
if child.expect([".*ssword.*", "Sorry",
pexpect.EOF,
pexpect.TIMEOUT]) == 3:
global use_env
use_env = True
child.close()
except OSError:
if child is not None:
child.close()
return False
# Check for sudo rights
child = env_spawn('sudo', ['-v'], 1)
try:
index = child.expect([".*ssword.*", "Sorry",
pexpect.EOF, pexpect.TIMEOUT])
child.close()
if index == 0 or index == 2:
# User in sudoers, or already admin
return True
elif index == 1 or index == 3:
# User not in sudoers
return False
except:
# Something else went wrong.
child.close()
return False
def test_os_defpath_which(self):
" which() finds an executable in $PATH and returns its abspath. "
bin_dir = tempfile.mkdtemp()
temp_obj = tempfile.NamedTemporaryFile(suffix=u'.sh',
prefix=u'ǝpoɔıun-',
dir=bin_dir,
delete=False)
bin_path = temp_obj.name
fname = os.path.basename(temp_obj.name)
save_path = os.environ['PATH']
save_defpath = os.defpath
try:
# setup
os.environ['PATH'] = ''
os.defpath = bin_dir
with open(bin_path, 'w') as fp:
pass
# given non-executable,
os.chmod(bin_path, 0o400)
# exercise absolute and relative,
assert pexpect.which(bin_path) is None
assert pexpect.which(fname) is None
# given executable,
os.chmod(bin_path, 0o700)
# exercise absolute and relative,
assert pexpect.which(bin_path) == bin_path
assert pexpect.which(fname) == bin_path
finally:
# restore,
os.environ['PATH'] = save_path
os.defpath = save_defpath
# destroy scratch files and folders,
if os.path.exists(bin_path):
os.unlink(bin_path)
if os.path.exists(bin_dir):
os.rmdir(bin_dir)
def CompleteReportAsRoot(run_as,tmp_configfile,gui=False):
"""Run a new instance of inforevealer with root priviledge to complete tmp_configfile"""
if gui: from gui import askPassword
if run_as == "substitute":
#find the substitute user command and run the script
if pexpect.which('su') != None:
message=_("Please, enter the root password.")
root_instance = str(pexpect.which('su')) + " - -c \'"+ os.path.abspath(sys.argv[0])+" --runfile "+ tmp_configfile+"\'"
elif pexpect.which('sudo') != None: #TODO checkme
message=_("Please, enter your user password.")
root_instance = str(pexpect.which('sudo')) + ' ' + os.path.abspath(sys.argv[0])+' --runfile '+ tmp_configfile
else:
sys.stderr.write(_("Error: No substitute user command available.\n"))
return 1
ret=""
count=0
while ret!=[' \r\n'] and count <3:
#Get password
count+=1
if gui:
password=askPassword(question=message)
else:
print(message)
password=getpass.getpass()
if password != False: #askPassword could return False
#Run the command #TODO exceptions ?
child = pexpect.spawn(root_instance)
ret=child.expect([".*:",pexpect.EOF]) #Could we do more ?
child.sendline(password)
ret = child.readlines()
if ret ==[' \r\n']: return 0
message=_("Wrong password.\nThe log will be generated without root priviledge.")
if gui:
import gtk
md = gtk.MessageDialog(None, gtk.DIALOG_DESTROY_WITH_PARENT, gtk.MESSAGE_INFO, gtk.BUTTONS_CLOSE, message)
md.set_title(_("Error"))
md.run()
md.destroy()
else:
print(message)
def test_os_defpath_which(self):
" which() finds an executable in $PATH and returns its abspath. "
bin_dir = tempfile.mkdtemp()
temp_obj = tempfile.NamedTemporaryFile(
suffix=u'.sh', prefix=u'ǝpoɔıun-',
dir=bin_dir, delete=False)
bin_path = temp_obj.name
fname = os.path.basename(temp_obj.name)
save_path = os.environ['PATH']
save_defpath = os.defpath
try:
# setup
os.environ['PATH'] = ''
os.defpath = bin_dir
with open(bin_path, 'w') as fp:
pass
# given non-executable,
os.chmod(bin_path, 0o400)
# exercise absolute and relative,
assert pexpect.which(bin_path) is None
assert pexpect.which(fname) is None
# given executable,
os.chmod(bin_path, 0o700)
# exercise absolute and relative,
assert pexpect.which(bin_path) == bin_path
assert pexpect.which(fname) == bin_path
finally:
# restore,
os.environ['PATH'] = save_path
os.defpath = save_defpath
# destroy scratch files and folders,
if os.path.exists(bin_path):
os.unlink(bin_path)
if os.path.exists(bin_dir):
os.rmdir(bin_dir)
def __init__(self, execpath=pexpect.which('M2'), timeout=4, configpath=None):
""""""
self.conf = M2Config(execpath, configpath)
self.proc = None
self.proc_command = self.conf.args.execpath
self.proc_kwargs = {
'args': ['--silent', '--no-debug', '-e', 'load("init.m2")'],
'cwd': os.path.dirname(__file__) + '/assets/m2-code/',
'timeout': timeout
}
async def test_telnet_client_cmdline_stdin_pipe(bind_host, unused_tcp_port,
event_loop):
"""Test sending data through command-line client (by os PIPE)."""
# this code may be reduced when pexpect asyncio is bugfixed ..
# we especially need pexpect to pass sys.stdin.isatty() test.
prog = pexpect.which('telnetlib3-client')
fd, logfile = tempfile.mkstemp(prefix='telnetlib3', suffix='.log')
os.close(fd)
args = [prog, bind_host, str(unused_tcp_port), '--loglevel=info',
'--connect-minwait=0.15', '--connect-maxwait=0.15',
'--logfile={0}'.format(logfile)]
@asyncio.coroutine
def shell(reader, writer):
writer.write('Press Return to continue:')
inp = yield from reader.readline()
if inp:
writer.echo(inp)
writer.write('\ngoodbye.\n')
yield from writer.drain()
writer.close()
# start server
await telnetlib3.create_server(
host=bind_host, port=unused_tcp_port,
shell=shell, loop=event_loop,
connect_maxwait=0.05)
# start client by way of pipe
proc = await asyncio.create_subprocess_exec(
*args, loop=event_loop,
stdin=asyncio.subprocess.PIPE,
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE)
#line = await asyncio.wait_for(proc.stdout.readline(), 1.5)
#assert line.strip() == b"Escape character is '^]'."
# message received, expect the client to gracefully quit.
stdout, stderr = await asyncio.wait_for(proc.communicate(b'\r'), 2)
# And finally, analyze the contents of the logfile,
# - 2016-03-18 20:19:25,227 INFO client_base.py:113 Connected to <Peer 127.0.0.1 51237>
# - 2016-03-18 20:19:25,286 INFO client_base.py:67 Connection closed to <Peer 127.0.0.1 51237>
logfile_output = open(logfile).read().splitlines()
assert stdout == (b"Escape character is '^]'.\n"
b"Press Return to continue:\r\ngoodbye.\n"
b"\x1b[m\nConnection closed by foreign host.\n")
# verify,
assert len(logfile_output) == 2, logfile
assert 'Connected to <Peer' in logfile_output[0], logfile
assert 'Connection closed to <Peer' in logfile_output[1], logfile
os.unlink(logfile)
def test_bscr_help_help(self):
"""
Test 'bscr help help'
"""
self.dbgfunc()
cmd = pexpect.which('bscr')
result = pexpect.run('%s help help' % cmd)
self.assertFalse('Traceback' in result)
self.assertTrue('help - show a list' in result)
self.assertTrue('With no arguments' in result)
self.assertTrue('With a command as argument' in result)
def test_bscr_help(self):
"""
Test 'bscr help'
"""
self.dbgfunc()
cmd = pexpect.which('bscr')
result = pexpect.run('%s help' % cmd)
self.assertFalse('Traceback' in result)
for f in [x for x in dir(bscr.bscr) if x.startswith('bscr_')]:
subc = f.replace('bscr_', '')
self.assertTrue('%s - ' % subc in result)
def test_align_help():
"""
Verify that 'align --help' does the right thing
"""
pytest.debug_func()
cmd = pexpect.which("align")
result = pexpect.run("%s --help" % cmd)
nexp = "Traceback"
assert nexp not in result
exp = "Align columns from input"
assert exp in result
def test_calc_help():
"""
Verify that 'calc --help' does the right thing
"""
pytest.debug_func()
cmd = pexpect.which("calc")
result = pexpect.run("%s --help" % cmd)
nexp = "Traceback"
assert nexp not in result
exp = "Usage: calc [options]"
assert exp in result
def test_fl_help_help(self):
"""
'fl help help' should get help for the help command
"""
cmd = pexpect.which('fl')
result = pexpect.run('%s help help' % cmd)
self.assertFalse('Traceback' in result)
for f in ['help - show a list of available commands',
'With no arguments, show a list of commands',
'With a command as argument, show help for that command',
]:
self.assertTrue(f in result)
def run(parent_dir=None, logfile=None, verbose=False):
"""Create TinyTim PSFs using standardized parameters
This function will automatically generate ALL PSFs listed in the
global filter dictionaries in the module in a tree with a directory for each
detector.
"""
psf_classes = {('ACS', 'WFC'): WFCPSF,
('ACS', 'HRC'): HRCPSF,
('ACS', 'SBC'): SBCPSF,
('WFC3', 'UVIS'): UVISPSF,
('WFC3', 'IR'): IRPSF}
if pexpect.which('tiny1') is None:
raise FileNotFoundError("TinyTim executables NOT found! Please install first..")
if parent_dir is None:
parent_dir = os.getcwd()
try:
for instr, detectors in FILTER_DICT.items():
instr_path = os.path.join(parent_dir, instr.lower())
if not os.path.exists(instr_path):
os.makedirs(instr_path)
# move into that directory
os.chdir(instr_path)
# Now, let's start looping over the detectors
for det, filter_names in detectors.items():
det_path = os.path.join(instr_path, det.lower())
if not os.path.exists(det_path):
os.makedirs(det_path)
# move into that directory
os.chdir(det_path)
# Now, start creating the PSFs listed in the filter_dict for this detector
for filter_name in filter_names:
# Create class for this PSF
psfobj = psf_classes[(instr, det)](filter_name,
logfile=logfile,
verbose=verbose)
psfobj.tiny1()
psfobj.tiny2()
psfobj.tiny3()
# We are finished with creating all the PSFs for this detector...
# Return to parent instrument directory
os.chdir(instr_path)
# We are finished with all the PSFs for this instrument...
# return to the parent directory
os.chdir(parent_dir)
finally:
os.chdir(parent_dir)
def check_missing_requirements ():
"""This list of missing requirements (mencoder, mplayer, lame, and mkvmerge).
Returns None if all requirements are in the execution path.
"""
missing = []
if pexpect.which("mencoder") is None:
missing.append("mencoder")
if pexpect.which("mplayer") is None:
missing.append("mplayer")
cmd = "mencoder -oac help"
(command_output, exitstatus) = run(cmd)
ar = re.findall("(mp3lame)", command_output)
if len(ar)==0:
missing.append("Mencoder was not compiled with mp3lame support.")
#if pexpect.which("lame") is None:
# missing.append("lame")
#if pexpect.which("mkvmerge") is None:
# missing.append("mkvmerge")
if len(missing)==0:
return None
return missing
def check_dependencies(commands=[]):
"""Check for the existence of required commands, and sudo access"""
# Check for required commands
for command in commands:
if pexpect.which(command) is None:
return False
# Check for sudo or pkexec
if pexpect.which("pkexec") is not None:
return True
if pexpect.which("sudo") is None:
return False
# Check for LANG requirements
child = env_spawn('sudo -v', 1)
if child.expect([".*ssword.*", "Sorry",
pexpect.EOF,
pexpect.TIMEOUT]) == 3:
global use_env
use_env = True
child.close()
# Check for sudo rights
child = env_spawn('sudo -v', 1)
try:
index = child.expect([".*ssword.*", "Sorry",
pexpect.EOF, pexpect.TIMEOUT])
child.close()
if index in [0, 2]:
# User in sudoers, or already admin
return True
except Exception:
# Something else went wrong.
child.close()
return False
def which(filename: str, env: Optional[Mapping[str, str]] = None):
'''This takes a given filename; tries to find it in the environment path;
then checks if it is executable. This returns the full path to the filename
if found and executable. Otherwise this returns None.
If `env` is not specified, use `os.environ` instead.
Example:
| ${path} | `Which` | java | { 'PATH': '/usr/lib/jvm/java-1.14.0-openjdk-amd64/bin' } |
| Log To Console | ${path} |
'''
return pexpect.which(filename, env)
def script_help(self, cmdname, helplist):
"""
ScriptBase: Make sure 'tcc help' generates something reasonable
"""
cmd = pexpect.which(cmdname)
if cmd is None:
cmd = "bin/" + cmdname
result = pexpect.run("%s help" % cmd)
self.assertFalse(
"Traceback" in result,
"'Traceback' not expected in %s" % U.line_quote(result))
for item in helplist:
self.assertTrue(item in result,
"Expected '%s' in '%s'" % (item, result))
def _start_gap(self):
# Signal handlers are inherited by forked processes, and we can't easily
# reset it from the subprocess. Since kernelapp ignores SIGINT except in
# message handlers, we need to temporarily reset the SIGINT handler here
# so that gap and its children are interruptible.
sig = signal.signal(signal.SIGINT, signal.SIG_DFL)
try:
# setup.g contains functions needed for Jupyter interfacing
setupg = path.dirname(path.abspath(__file__))
if which('gap') != None:
gap_run_command = which('gap')
elif which('gap.sh') != None:
gap_run_command = which('gap.sh')
else:
raise NameError('gap executable not found')
self.gapwrapper = replwrap.REPLWrapper(
gap_run_command + ' -n -b -T %s/gap/setup.g' % (setupg),
u'gap|| ',
None,
None,
continuation_prompt=u'|| ')
self.gapwrapper.run_command("\n")
finally:
signal.signal(signal.SIGINT, sig)
def test_path_from_env(self):
" executable found from optional env argument "
bin_name = 'pexpect-test-path-from-env'
tempdir = tempfile.mkdtemp()
try:
bin_path = os.path.join(tempdir, bin_name)
with open(bin_path, 'w') as f:
f.write('# test file not to be run')
try:
os.chmod(bin_path, 0o700)
found_path = pexpect.which(bin_name, env={'PATH': tempdir})
finally:
os.remove(bin_path)
self.assertEqual(bin_path, found_path)
finally:
os.rmdir(tempdir)
async def test_telnet_server_cmdline(bind_host, unused_tcp_port, event_loop):
"""Test executing telnetlib3/server.py as server"""
# this code may be reduced when pexpect asyncio is bugfixed ..
prog = pexpect.which("telnetlib3-server")
args = [
prog,
bind_host,
str(unused_tcp_port),
"--loglevel=info",
"--connect-maxwait=0.05",
]
proc = await asyncio.create_subprocess_exec(*args,
loop=event_loop,
stderr=asyncio.subprocess.PIPE)
seen = b""
while True:
line = await asyncio.wait_for(proc.stderr.readline(), 1.5)
if b"Server ready" in line:
break
seen += line
assert line, seen.decode() # EOF reached
# client connects,
reader, writer = await asyncio.open_connection(host=bind_host,
port=unused_tcp_port,
loop=event_loop)
# and closes,
await reader.readexactly(3) # IAC DO TTYPE, we ignore it!
writer.close()
seen = b""
while True:
line = await asyncio.wait_for(proc.stderr.readline(), 1.5)
if b"Connection closed" in line:
break
seen += line
assert line, seen.decode() # EOF reached
# send SIGTERM
proc.terminate()
# we would expect the server to gracefully end.
await proc.communicate()
await proc.wait()
def get_netcat():
"""Return IPv6-capable nc(1), if any."""
netcat_paths = ('nc', 'netcat', '/usr/bin/nc', '/usr/local/bin/nc',
'/bin/nc.openbsd')
for nc_name in netcat_paths:
prog = pexpect.which(nc_name)
if prog is None:
continue
stdout, stderr = subprocess.Popen(
[prog, '-h'], stdout=subprocess.PIPE,
stderr=subprocess.PIPE).communicate()
# only openbsd netcat supports IPv6.
# So that's the only one we'll use!
if b'-46' in stdout + stderr:
return prog
return None
def start(self, process_name, *args):
"""Starts a process."""
if Process.is_running(process_name):
self._error("Process '{}' is already running".format(process_name))
return False
if len(args) < 2:
self._error("'directory' and 'command' arguments not given but mandatory")
return False
directory_path = xtask.parse_path(args[0])
if not directory_path.exists():
self._error("Location {} does not exist".format(directory_path))
return False
command = args[1]
args = list(args[2:])
if command.startswith("."):
command_path = directory_path / command
if not command_path.exists():
self._error("Cannot find command {}".format(command_path))
else:
command = str(command_path)
elif pexpect.which(command) is None:
self._error("Unknown command '{}'".format(command))
return False
try:
self._info(
"Starting process '{}' by calling '{} {}' in directory {}".format(
process_name, command, " ".join(args), directory_path
)
)
process = pexpect.spawn(command, args, cwd=directory_path, timeout=5)
Process._processes[process_name] = process
except Exception:
self._exception(
"Something went wrong while starting process '{}'".format(process_name)
)
return False
return True
