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How to use fake_isfile method in stestr

Best Python code snippet using stestr_python

fake_fs.py

Source:fake_fs.py

...21        >>> fake_listdir, fake_isfile, _, _ = \22                make_fake_fstools(fake_fs)23        >>> fake_listdir('a_directory/yet_another_directory')24        ['empty_directory']25        >>> fake_isfile('a_directory/yet_another_directory')26        False27    :param fake_filesystem: A dict representing a filesystem28    """29    assert isinstance(fake_filesystem, dict)30    def fake_listdir(path, fsdict=False):31        if fsdict is False:32            fsdict = fake_filesystem33        remainder = path.strip('/') + '/'34        subdict = fsdict35        while '/' in remainder:36            next_dir, remainder = remainder.split('/', 1)37            if next_dir not in subdict:38                raise OSError(39                    '[Errno 2] No such file or directory: %s' % next_dir)40            subdict = subdict.get(next_dir)41            if not isinstance(subdict, dict):42                raise OSError('[Errno 20] Not a directory: %s' % next_dir)43            if subdict and not remainder:44                return subdict.keys()45        return []46    def fake_isfile(path, fsdict=False):47        if fsdict is False:48            fsdict = fake_filesystem49        components = path.strip('/').split('/')50        subdict = fsdict51        for component in components:52            if component not in subdict:53                raise OSError(54                    '[Errno 2] No such file or directory: %s' % component)55            subdict = subdict.get(component)56        return subdict is None or isinstance(subdict, str)57    def fake_isdir(path, fsdict=False):58        return not fake_isfile(path)59    def fake_exists(path, fsdict=False):60        return fake_isfile(path, fsdict) or fake_isdir(path, fsdict)61    def fake_open(path, mode=None, buffering=None):62        components = path.strip('/').split('/')63        subdict = fake_filesystem64        for component in components:65            if component not in subdict:66                raise IOError(67                    '[Errno 2] No such file or directory: %s' % component)68            subdict = subdict.get(component)69        if isinstance(subdict, dict):70            raise IOError('[Errno 21] Is a directory: %s' % path)71        elif subdict is None:72            return closing(StringIO(''))73        return closing(StringIO(subdict))74    return fake_exists, fake_listdir, fake_isfile, fake_isdir, fake_open

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