import pytest @pytest.fixture(autouse=True) def Popen(mocker): mock = mocker.patch('thefuck.specific.devenv.Popen') mock.return_value.stdout.readlines.return_value = ( b'--version\nactivate\ncommands\ncompletions\ndeactivate\nexec_\n' b'global\nhelp\nhooks\ninit\ninstall\nlocal\nprefix_\n' b'realpath.dylib\nrehash\nroot\nshell\nshims\nuninstall\nversion_\n' b'version-file\nversion-file-read\nversion-file-write\nversion-name_\n' b'version-origin\nversions\nvirtualenv\nvirtualenv-delete_\n' b'virtualenv-init\nvirtualenv-prefix\nvirtualenvs_\n' b'virtualenvwrapper\nvirtualenvwrapper_lazy\nwhence\nwhich_\n' ).split() return mock