def setUp(self):
    self._resolver_context = context.Context()
    test_file = os.path.join(u'test_data', u'syslog.zip')
    self._os_path_spec = os_path_spec.OSPathSpec(location=test_file)
    self._zip_path_spec = zip_path_spec.ZipPathSpec(
        location=u'/', parent=self._os_path_spec)
'command' is the full command-line necessary to run VW.  E.g.
dataset/ETHPy150Open log2timeline/dfvfs/tests/vfs/zip_file_system.py/ZipFileSystemTest.setUp--crossover with--dataset/ETHPy150Open mokelly/wabbit_wappa/wabbit_wappa/__init__.py/VW.__init__