Example #1
0
class TestFileViewer(TestCase):
    def setUp(self):
        super(TestFileViewer, self).setUp()
        self.viewer = FileViewer(make_file(1, get_file('dictionary-test.xpi')))

    def tearDown(self):
        self.viewer.cleanup()
        super(TestFileViewer, self).tearDown()

    def test_files_not_extracted(self):
        assert not self.viewer.is_extracted()

    def test_files_extracted(self):
        self.viewer.extract()
        assert self.viewer.is_extracted()

    def test_recurse_extract(self):
        self.viewer.src = get_file('recurse.xpi')
        self.viewer.extract()
        assert self.viewer.is_extracted()

    def test_recurse_contents(self):
        self.viewer.src = get_file('recurse.xpi')
        self.viewer.extract()
        files = self.viewer.get_files()
        file_list = [
            'recurse/recurse.xpi/chrome/test-root.txt',
            'recurse/somejar.jar/recurse/recurse.xpi/chrome/test.jar',
            'recurse/somejar.jar/recurse/recurse.xpi/chrome/test.jar/test'
        ]
        for name in file_list:
            assert name in files

    def test_recurse_contents_of_zip(self):
        self.viewer.src = get_file('recurse.zip')
        self.viewer.extract()
        files = self.viewer.get_files()
        file_list = [
            'recurse/recurse.xpi/chrome/test-root.txt',
            'recurse/somejar.jar/recurse/recurse.xpi/chrome/test.jar',
            'recurse/somejar.jar/recurse/recurse.xpi/chrome/test.jar/test'
        ]
        for name in file_list:
            assert name in files

    def test_locked(self):
        self.viewer.src = get_file('dictionary-test.xpi')

        # Lock was successfully attained
        assert self.viewer.extract()

        lock = flufl.lock.Lock(
            os.path.join(settings.TMP_PATH,
                         'file-viewer-%s.lock' % self.viewer.file.pk))

        assert not lock.is_locked

        lock.lock()

        assert lock.is_locked

        # Not extracting, the viewer is locked, lock could not be attained
        assert not self.viewer.extract()

    def test_extract_file_locked_message(self):
        self.viewer.src = get_file('dictionary-test.xpi')
        assert not self.viewer.is_extracted()

        lock = flufl.lock.Lock(
            os.path.join(settings.TMP_PATH,
                         'file-viewer-%s.lock' % self.viewer.file.pk))

        assert not lock.is_locked

        lock.lock()

        assert lock.is_locked

        msg = extract_file(self.viewer)
        assert str(msg.get()).startswith(u'File viewer is locked')
        msg.delete()

    def test_cleanup(self):
        self.viewer.extract()
        self.viewer.cleanup()
        assert not self.viewer.is_extracted()

    @freeze_time('2017-01-08 02:01:00')
    def test_dest(self):
        viewer = FileViewer(make_file(1, get_file('webextension.xpi')))
        assert viewer.dest == os.path.join(settings.TMP_PATH, 'file_viewer',
                                           '0108', str(self.viewer.file.pk))

    def test_isbinary(self):
        binary = self.viewer._is_binary
        for f in [
                'foo.rdf', 'foo.xml', 'foo.js', 'foo.py'
                'foo.html', 'foo.txt', 'foo.dtd', 'foo.xul', 'foo.sh',
                'foo.properties', 'foo.json', 'foo.src', 'CHANGELOG'
        ]:
            m, encoding = mimetypes.guess_type(f)
            assert not binary(m, f), '%s should not be binary' % f

        for f in ['foo.png', 'foo.gif', 'foo.exe', 'foo.swf']:
            m, encoding = mimetypes.guess_type(f)
            assert binary(m, f), '%s should be binary' % f

        filename = os.path.join(settings.TMP_PATH, 'test_isbinary')
        for txt in ['#!/usr/bin/python', '#python', u'\0x2']:
            open(filename, 'w').write(txt)
            m, encoding = mimetypes.guess_type(filename)
            assert not binary(m, filename), '%s should not be binary' % txt

        for txt in ['MZ']:
            open(filename, 'w').write(txt)
            m, encoding = mimetypes.guess_type(filename)
            assert binary(m, filename), '%s should be binary' % txt
        os.remove(filename)

    def test_truncate(self):
        truncate = self.viewer.truncate
        for x, y in (
            ['foo.rdf', 'foo.rdf'],
            ['somelongfilename.rdf', 'somelongfilenam...rdf'],
            [u'unicode삮.txt', u'unicode\uc0ae.txt'],
            [u'unicodesomelong삮.txt', u'unicodesomelong...txt'],
            [
                'somelongfilename.somelongextension',
                'somelongfilenam...somelonge..'
            ],
        ):
            assert truncate(x) == y

    def test_get_files_not_extracted(self):
        assert not self.viewer.get_files()

    def test_get_files_size(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        assert len(files) == 14

    def test_get_files_directory(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        assert not files['install.js']['directory']
        assert not files['install.js']['binary']
        assert files['__MACOSX']['directory']
        assert not files['__MACOSX']['binary']

    def test_url_file(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        url = reverse('files.list',
                      args=[self.viewer.file.id, 'file', 'install.js'])
        file_url = files['install.js']['url']
        assert file_url == url
        assert file_url.startswith('/en-US')

        # Make sure that the locale is properly used (see bug 1168794).
        with self.activate('fr'):
            self.viewer._files = {}  # Reset the viewer's internal cache.
            files = self.viewer.get_files()
            url = reverse('files.list',
                          args=[self.viewer.file.id, 'file', 'install.js'])
            file_url = files['install.js']['url']
            assert file_url == url
            assert file_url.startswith('/fr')

    def test_get_files_depth(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        assert files['dictionaries/license.txt']['depth'] == 1

    def test_bom(self):
        dest = os.path.join(settings.TMP_PATH, 'test_bom')
        open(dest, 'w').write('foo'.encode('utf-16'))
        self.viewer.select('foo')
        self.viewer.selected = {'full': dest, 'size': 1}
        assert self.viewer.read_file() == u'foo'
        os.remove(dest)

    def test_syntax(self):
        for filename, syntax in [('foo.rdf', 'xml'), ('foo.xul', 'xml'),
                                 ('foo.json', 'js'), ('foo.jsm', 'js'),
                                 ('foo.htm', 'html'), ('foo.bar', 'plain'),
                                 ('foo.diff', 'plain')]:
            assert self.viewer.get_syntax(filename) == syntax

    def test_file_order(self):
        self.viewer.extract()
        dest = self.viewer.dest
        open(os.path.join(dest, 'chrome.manifest'), 'w')
        subdir = os.path.join(dest, 'chrome')
        os.mkdir(subdir)
        open(os.path.join(subdir, 'foo'), 'w')
        cache.clear()
        files = self.viewer.get_files().keys()
        rt = files.index(u'chrome')
        assert files[rt:rt + 3] == [u'chrome', u'chrome/foo', u'dictionaries']

    @patch.object(settings, 'FILE_VIEWER_SIZE_LIMIT', 5)
    def test_file_size(self):
        self.viewer.extract()
        self.viewer.get_files()
        self.viewer.select('install.js')
        res = self.viewer.read_file()
        assert res == ''
        assert self.viewer.selected['msg'].startswith('File size is')

    @patch.object(settings, 'FILE_VIEWER_SIZE_LIMIT', 5)
    def test_file_size_unicode(self):
        with self.activate(locale='he'):
            self.viewer.extract()
            self.viewer.get_files()
            self.viewer.select('install.js')
            res = self.viewer.read_file()
            assert res == ''
            assert self.viewer.selected['msg'].startswith('File size is')

    @patch.object(settings, 'FILE_UNZIP_SIZE_LIMIT', 5)
    def test_contents_size(self):
        self.assertRaises(forms.ValidationError, self.viewer.extract)

    def test_default(self):
        self.viewer.extract()
        assert self.viewer.get_default(None) == 'install.rdf'

    def test_default_webextension(self):
        viewer = FileViewer(make_file(2, get_file('webextension.xpi')))
        viewer.extract()
        assert viewer.get_default(None) == 'manifest.json'

    def test_default_webextension_zip(self):
        viewer = FileViewer(make_file(2, get_file('webextension_no_id.zip')))
        viewer.extract()
        assert viewer.get_default(None) == 'manifest.json'

    def test_default_webextension_crx(self):
        viewer = FileViewer(make_file(2, get_file('webextension.crx')))
        viewer.extract()
        assert viewer.get_default(None) == 'manifest.json'

    def test_default_package_json(self):
        viewer = FileViewer(make_file(3, get_file('new-format-0.0.1.xpi')))
        viewer.extract()
        assert viewer.get_default(None) == 'package.json'

    def test_delete_mid_read(self):
        self.viewer.extract()
        self.viewer.select('install.js')
        os.remove(os.path.join(self.viewer.dest, 'install.js'))
        res = self.viewer.read_file()
        assert res == ''
        assert self.viewer.selected['msg'].startswith('That file no')

    @patch('olympia.files.helpers.get_sha256')
    def test_delete_mid_tree(self, get_sha256):
        get_sha256.side_effect = IOError('ow')
        self.viewer.extract()
        assert {} == self.viewer.get_files()

    @patch('olympia.files.helpers.os.fsync')
    def test_verify_files_doesnt_call_fsync_regularly(self, fsync):
        self.viewer.extract()

        assert not fsync.called

    @patch('olympia.files.helpers.os.fsync')
    def test_verify_files_calls_fsync_on_differences(self, fsync):
        self.viewer.extract()

        assert not fsync.called

        files_to_verify = get_all_files(self.viewer.dest)
        files_to_verify.pop()

        with patch('olympia.files.helpers.get_all_files') as get_all_files_mck:
            get_all_files_mck.return_value = files_to_verify

            with pytest.raises(ValueError):
                # We don't put things back into place after fsync
                # so a `ValueError` is raised
                self.viewer._verify_files(files_to_verify)

        assert len(fsync.call_args_list) == len(files_to_verify) + 1
Example #2
0
class TestFileHelper(TestCase):
    def setUp(self):
        super(TestFileHelper, self).setUp()
        self.viewer = FileViewer(make_file(1, get_file('dictionary-test.xpi')))

    def tearDown(self):
        self.viewer.cleanup()
        super(TestFileHelper, self).tearDown()

    def test_files_not_extracted(self):
        eq_(self.viewer.is_extracted(), False)

    def test_files_extracted(self):
        self.viewer.extract()
        eq_(self.viewer.is_extracted(), True)

    def test_recurse_extract(self):
        self.viewer.src = get_file('recurse.xpi')
        self.viewer.extract()
        eq_(self.viewer.is_extracted(), True)

    def test_recurse_contents(self):
        self.viewer.src = get_file('recurse.xpi')
        self.viewer.extract()
        files = self.viewer.get_files()
        nm = [
            'recurse/recurse.xpi/chrome/test-root.txt',
            'recurse/somejar.jar/recurse/recurse.xpi/chrome/test.jar',
            'recurse/somejar.jar/recurse/recurse.xpi/chrome/test.jar/test'
        ]
        for name in nm:
            eq_(name in files, True, 'File %r not extracted' % name)

    def test_cleanup(self):
        self.viewer.extract()
        self.viewer.cleanup()
        eq_(self.viewer.is_extracted(), False)

    def test_isbinary(self):
        binary = self.viewer._is_binary
        for f in [
                'foo.rdf', 'foo.xml', 'foo.js', 'foo.py'
                'foo.html', 'foo.txt', 'foo.dtd', 'foo.xul', 'foo.sh',
                'foo.properties', 'foo.json', 'foo.src', 'CHANGELOG'
        ]:
            m, encoding = mimetypes.guess_type(f)
            assert not binary(m, f), '%s should not be binary' % f

        for f in ['foo.png', 'foo.gif', 'foo.exe', 'foo.swf']:
            m, encoding = mimetypes.guess_type(f)
            assert binary(m, f), '%s should be binary' % f

        filename = os.path.join(settings.TMP_PATH, 'test_isbinary')
        for txt in ['#!/usr/bin/python', '#python', u'\0x2']:
            open(filename, 'w').write(txt)
            m, encoding = mimetypes.guess_type(filename)
            assert not binary(m, filename), '%s should not be binary' % txt

        for txt in ['MZ']:
            open(filename, 'w').write(txt)
            m, encoding = mimetypes.guess_type(filename)
            assert binary(m, filename), '%s should be binary' % txt
        os.remove(filename)

    def test_truncate(self):
        truncate = self.viewer.truncate
        for x, y in (
            ['foo.rdf', 'foo.rdf'],
            ['somelongfilename.rdf', 'somelongfilenam...rdf'],
            [u'unicode삮.txt', u'unicode\uc0ae.txt'],
            [u'unicodesomelong삮.txt', u'unicodesomelong...txt'],
            [
                'somelongfilename.somelongextension',
                'somelongfilenam...somelonge..'
            ],
        ):
            eq_(truncate(x), y)

    def test_get_files_not_extracted(self):
        assert not self.viewer.get_files()

    def test_get_files_size(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        eq_(len(files), 14)

    def test_get_files_directory(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        eq_(files['install.js']['directory'], False)
        eq_(files['install.js']['binary'], False)
        eq_(files['__MACOSX']['directory'], True)
        eq_(files['__MACOSX']['binary'], False)

    def test_url_file(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        url = reverse('files.list',
                      args=[self.viewer.file.id, 'file', 'install.js'])
        file_url = files['install.js']['url']
        assert file_url == url
        assert file_url.startswith('/en-US')

        # Make sure that the locale is properly used (see bug 1168794).
        with self.activate('fr'):
            self.viewer._files = {}  # Reset the viewer's internal cache.
            files = self.viewer.get_files()
            url = reverse('files.list',
                          args=[self.viewer.file.id, 'file', 'install.js'])
            file_url = files['install.js']['url']
            assert file_url == url
            assert file_url.startswith('/fr')

    def test_get_files_depth(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        eq_(files['dictionaries/license.txt']['depth'], 1)

    def test_bom(self):
        dest = os.path.join(settings.TMP_PATH, 'test_bom')
        open(dest, 'w').write('foo'.encode('utf-16'))
        self.viewer.select('foo')
        self.viewer.selected = {'full': dest, 'size': 1}
        eq_(self.viewer.read_file(), u'foo')
        os.remove(dest)

    def test_syntax(self):
        for filename, syntax in [('foo.rdf', 'xml'), ('foo.xul', 'xml'),
                                 ('foo.json', 'js'), ('foo.jsm', 'js'),
                                 ('foo.bar', 'plain')]:
            eq_(self.viewer.get_syntax(filename), syntax)

    def test_file_order(self):
        self.viewer.extract()
        dest = self.viewer.dest
        open(os.path.join(dest, 'chrome.manifest'), 'w')
        subdir = os.path.join(dest, 'chrome')
        os.mkdir(subdir)
        open(os.path.join(subdir, 'foo'), 'w')
        cache.clear()
        files = self.viewer.get_files().keys()
        rt = files.index(u'chrome')
        eq_(files[rt:rt + 3], [u'chrome', u'chrome/foo', u'dictionaries'])

    @patch.object(settings, 'FILE_VIEWER_SIZE_LIMIT', 5)
    def test_file_size(self):
        self.viewer.extract()
        self.viewer.get_files()
        self.viewer.select('install.js')
        res = self.viewer.read_file()
        eq_(res, '')
        assert self.viewer.selected['msg'].startswith('File size is')

    @patch.object(settings, 'FILE_VIEWER_SIZE_LIMIT', 5)
    def test_file_size_unicode(self):
        with self.activate(locale='he'):
            self.viewer.extract()
            self.viewer.get_files()
            self.viewer.select('install.js')
            res = self.viewer.read_file()
            eq_(res, '')
            assert self.viewer.selected['msg'].startswith('File size is')

    @patch.object(settings, 'FILE_UNZIP_SIZE_LIMIT', 5)
    def test_contents_size(self):
        self.assertRaises(forms.ValidationError, self.viewer.extract)

    def test_default(self):
        self.viewer.extract()
        assert self.viewer.get_default(None) == 'install.rdf'

    def test_default_webextension(self):
        viewer = FileViewer(make_file(2, get_file('webextension.xpi')))
        viewer.extract()
        assert viewer.get_default(None) == 'manifest.json'

    def test_default_package_json(self):
        viewer = FileViewer(make_file(3, get_file('new-format-0.0.1.xpi')))
        viewer.extract()
        assert viewer.get_default(None) == 'package.json'

    def test_delete_mid_read(self):
        self.viewer.extract()
        self.viewer.select('install.js')
        os.remove(os.path.join(self.viewer.dest, 'install.js'))
        res = self.viewer.read_file()
        eq_(res, '')
        assert self.viewer.selected['msg'].startswith('That file no')

    @patch('olympia.files.helpers.get_md5')
    def test_delete_mid_tree(self, get_md5):
        get_md5.side_effect = IOError('ow')
        self.viewer.extract()
        eq_({}, self.viewer.get_files())
Example #3
0
class TestFileHelper(TestCase):

    def setUp(self):
        super(TestFileHelper, self).setUp()
        self.viewer = FileViewer(make_file(1, get_file('dictionary-test.xpi')))

    def tearDown(self):
        self.viewer.cleanup()
        super(TestFileHelper, self).tearDown()

    def test_files_not_extracted(self):
        assert not self.viewer.is_extracted()

    def test_files_extracted(self):
        self.viewer.extract()
        assert self.viewer.is_extracted()

    def test_recurse_extract(self):
        self.viewer.src = get_file('recurse.xpi')
        self.viewer.extract()
        assert self.viewer.is_extracted()

    def test_recurse_contents(self):
        self.viewer.src = get_file('recurse.xpi')
        self.viewer.extract()
        files = self.viewer.get_files()
        file_list = [
            'recurse/recurse.xpi/chrome/test-root.txt',
            'recurse/somejar.jar/recurse/recurse.xpi/chrome/test.jar',
            'recurse/somejar.jar/recurse/recurse.xpi/chrome/test.jar/test'
        ]
        for name in file_list:
            assert name in files

    def test_recurse_contents_of_zip(self):
        self.viewer.src = get_file('recurse.zip')
        self.viewer.extract()
        files = self.viewer.get_files()
        file_list = [
            'recurse/recurse.xpi/chrome/test-root.txt',
            'recurse/somejar.jar/recurse/recurse.xpi/chrome/test.jar',
            'recurse/somejar.jar/recurse/recurse.xpi/chrome/test.jar/test'
        ]
        for name in file_list:
            assert name in files

    def test_cleanup(self):
        self.viewer.extract()
        self.viewer.cleanup()
        assert not self.viewer.is_extracted()

    def test_isbinary(self):
        binary = self.viewer._is_binary
        for f in ['foo.rdf', 'foo.xml', 'foo.js', 'foo.py'
                  'foo.html', 'foo.txt', 'foo.dtd', 'foo.xul', 'foo.sh',
                  'foo.properties', 'foo.json', 'foo.src', 'CHANGELOG']:
            m, encoding = mimetypes.guess_type(f)
            assert not binary(m, f), '%s should not be binary' % f

        for f in ['foo.png', 'foo.gif', 'foo.exe', 'foo.swf']:
            m, encoding = mimetypes.guess_type(f)
            assert binary(m, f), '%s should be binary' % f

        filename = os.path.join(settings.TMP_PATH, 'test_isbinary')
        for txt in ['#!/usr/bin/python', '#python', u'\0x2']:
            open(filename, 'w').write(txt)
            m, encoding = mimetypes.guess_type(filename)
            assert not binary(m, filename), '%s should not be binary' % txt

        for txt in ['MZ']:
            open(filename, 'w').write(txt)
            m, encoding = mimetypes.guess_type(filename)
            assert binary(m, filename), '%s should be binary' % txt
        os.remove(filename)

    def test_truncate(self):
        truncate = self.viewer.truncate
        for x, y in (['foo.rdf', 'foo.rdf'],
                     ['somelongfilename.rdf', 'somelongfilenam...rdf'],
                     [u'unicode삮.txt', u'unicode\uc0ae.txt'],
                     [u'unicodesomelong삮.txt', u'unicodesomelong...txt'],
                     ['somelongfilename.somelongextension',
                      'somelongfilenam...somelonge..'],):
            assert truncate(x) == y

    def test_get_files_not_extracted(self):
        assert not self.viewer.get_files()

    def test_get_files_size(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        assert len(files) == 14

    def test_get_files_directory(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        assert not files['install.js']['directory']
        assert not files['install.js']['binary']
        assert files['__MACOSX']['directory']
        assert not files['__MACOSX']['binary']

    def test_url_file(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        url = reverse('files.list', args=[self.viewer.file.id,
                                          'file', 'install.js'])
        file_url = files['install.js']['url']
        assert file_url == url
        assert file_url.startswith('/en-US')

        # Make sure that the locale is properly used (see bug 1168794).
        with self.activate('fr'):
            self.viewer._files = {}  # Reset the viewer's internal cache.
            files = self.viewer.get_files()
            url = reverse('files.list', args=[self.viewer.file.id,
                                              'file', 'install.js'])
            file_url = files['install.js']['url']
            assert file_url == url
            assert file_url.startswith('/fr')

    def test_get_files_depth(self):
        self.viewer.extract()
        files = self.viewer.get_files()
        assert files['dictionaries/license.txt']['depth'] == 1

    def test_bom(self):
        dest = os.path.join(settings.TMP_PATH, 'test_bom')
        open(dest, 'w').write('foo'.encode('utf-16'))
        self.viewer.select('foo')
        self.viewer.selected = {'full': dest, 'size': 1}
        assert self.viewer.read_file() == u'foo'
        os.remove(dest)

    def test_syntax(self):
        for filename, syntax in [('foo.rdf', 'xml'),
                                 ('foo.xul', 'xml'),
                                 ('foo.json', 'js'),
                                 ('foo.jsm', 'js'),
                                 ('foo.bar', 'plain')]:
            assert self.viewer.get_syntax(filename) == syntax

    def test_file_order(self):
        self.viewer.extract()
        dest = self.viewer.dest
        open(os.path.join(dest, 'chrome.manifest'), 'w')
        subdir = os.path.join(dest, 'chrome')
        os.mkdir(subdir)
        open(os.path.join(subdir, 'foo'), 'w')
        cache.clear()
        files = self.viewer.get_files().keys()
        rt = files.index(u'chrome')
        assert files[rt:rt + 3] == [u'chrome', u'chrome/foo', u'dictionaries']

    @patch.object(settings, 'FILE_VIEWER_SIZE_LIMIT', 5)
    def test_file_size(self):
        self.viewer.extract()
        self.viewer.get_files()
        self.viewer.select('install.js')
        res = self.viewer.read_file()
        assert res == ''
        assert self.viewer.selected['msg'].startswith('File size is')

    @patch.object(settings, 'FILE_VIEWER_SIZE_LIMIT', 5)
    def test_file_size_unicode(self):
        with self.activate(locale='he'):
            self.viewer.extract()
            self.viewer.get_files()
            self.viewer.select('install.js')
            res = self.viewer.read_file()
            assert res == ''
            assert self.viewer.selected['msg'].startswith('File size is')

    @patch.object(settings, 'FILE_UNZIP_SIZE_LIMIT', 5)
    def test_contents_size(self):
        self.assertRaises(forms.ValidationError, self.viewer.extract)

    def test_default(self):
        self.viewer.extract()
        assert self.viewer.get_default(None) == 'install.rdf'

    def test_default_webextension(self):
        viewer = FileViewer(make_file(2, get_file('webextension.xpi')))
        viewer.extract()
        assert viewer.get_default(None) == 'manifest.json'

    def test_default_webextension_zip(self):
        viewer = FileViewer(make_file(2, get_file('webextension_no_id.zip')))
        viewer.extract()
        assert viewer.get_default(None) == 'manifest.json'

    def test_default_webextension_crx(self):
        viewer = FileViewer(make_file(2, get_file('webextension.crx')))
        viewer.extract()
        assert viewer.get_default(None) == 'manifest.json'

    def test_default_package_json(self):
        viewer = FileViewer(make_file(3, get_file('new-format-0.0.1.xpi')))
        viewer.extract()
        assert viewer.get_default(None) == 'package.json'

    def test_delete_mid_read(self):
        self.viewer.extract()
        self.viewer.select('install.js')
        os.remove(os.path.join(self.viewer.dest, 'install.js'))
        res = self.viewer.read_file()
        assert res == ''
        assert self.viewer.selected['msg'].startswith('That file no')

    @patch('olympia.files.helpers.get_md5')
    def test_delete_mid_tree(self, get_md5):
        get_md5.side_effect = IOError('ow')
        self.viewer.extract()
        assert {} == self.viewer.get_files()