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How to use work_in_clean_dir method in tox

Best Python code snippet using tox_python

test_quickstart.py

Source:test_quickstart.py

1import os2import pytest3import tox4from tox._quickstart import (5    ALTERNATIVE_CONFIG_NAME,6    QUICKSTART_CONF,7    list_modificator,8    main,9    post_process_input,10    prepare_content,11)12ALL_PY_ENVS_AS_STRING = ", ".join(tox.PYTHON.QUICKSTART_PY_ENVS)13ALL_PY_ENVS_WO_LAST_AS_STRING = ", ".join(tox.PYTHON.QUICKSTART_PY_ENVS[:-1])14SIGNS_OF_SANITY = (15    "tox.readthedocs.io",16    "[tox]",17    "[testenv]",18    "envlist = ",19    "deps =",20    "commands =",21)22# A bunch of elements to be expected in the generated config as marker for basic sanity23class _answers:24    """Simulate a series of terminal inputs by popping them from a list if called."""25    def __init__(self, inputs):26        self._inputs = [str(i) for i in inputs]27    def extend(self, items):28        self._inputs.extend(items)29    def __str__(self):30        return "|".join(self._inputs)31    def __call__(self, prompt):32        print("prompt: '{}'".format(prompt))33        try:34            answer = self._inputs.pop(0)35            print("user answer: '{}'".format(answer))36            return answer37        except IndexError:38            pytest.fail("missing user answer for '{}'".format(prompt))39class _cnf:40    """Handle files and args for different test scenarios."""41    SOME_CONTENT = "dontcare"42    def __init__(self, exists=False, names=None, pass_path=False):43        self.original_name = tox.INFO.DEFAULT_CONFIG_NAME44        self.names = names or [ALTERNATIVE_CONFIG_NAME]45        self.exists = exists46        self.pass_path = pass_path47    def __str__(self):48        return self.original_name if not self.exists else str(self.names)49    @property50    def argv(self):51        argv = ["tox-quickstart"]52        if self.pass_path:53            argv.append(os.getcwd())54        return argv55    @property56    def dpath(self):57        return os.getcwd() if self.pass_path else ""58    def create(self):59        paths_to_create = {self._original_path}60        for name in self.names[:-1]:61            paths_to_create.add(os.path.join(self.dpath, name))62        for path in paths_to_create:63            with open(path, "w") as f:64                f.write(self.SOME_CONTENT)65    @property66    def generated_content(self):67        return self._alternative_content if self.exists else self._original_content68    @property69    def already_existing_content(self):70        if not self.exists:71            if os.path.exists(self._alternative_path):72                pytest.fail("alternative path should never exist here")73            pytest.fail("checking for already existing content makes not sense here")74        return self._original_content75    @property76    def path_to_generated(self):77        return os.path.join(os.getcwd(), self.names[-1] if self.exists else self.original_name)78    @property79    def _original_path(self):80        return os.path.join(self.dpath, self.original_name)81    @property82    def _alternative_path(self):83        return os.path.join(self.dpath, self.names[-1])84    @property85    def _original_content(self):86        with open(self._original_path) as f:87            return f.read()88    @property89    def _alternative_content(self):90        with open(self._alternative_path) as f:91            return f.read()92class _exp:93    """Holds test expectations and a user scenario description."""94    STANDARD_EPECTATIONS = [ALL_PY_ENVS_AS_STRING, "pytest", "pytest"]95    def __init__(self, name, exp=None):96        self.name = name97        exp = exp or self.STANDARD_EPECTATIONS98        # NOTE extra mangling here ensures formatting is the same in file and exp99        map_ = {"deps": list_modificator(exp[1]), "commands": list_modificator(exp[2])}100        post_process_input(map_)101        map_["envlist"] = exp[0]102        self.content = prepare_content(QUICKSTART_CONF.format(**map_))103    def __str__(self):104        return self.name105@pytest.mark.usefixtures("work_in_clean_dir")106@pytest.mark.parametrize(107    argnames="answers, exp, cnf",108    ids=lambda param: str(param),109    argvalues=(110        (111            _answers([4, "Y", "Y", "Y", "Y", "Y", "N", "pytest", "pytest"]),112            _exp(113                "choose versions individually and use pytest",114                [ALL_PY_ENVS_WO_LAST_AS_STRING, "pytest", "pytest"],115            ),116            _cnf(),117        ),118        (119            _answers([4, "Y", "Y", "Y", "Y", "Y", "N", "py.test", ""]),120            _exp(121                "choose versions individually and use old fashioned py.test",122                [ALL_PY_ENVS_WO_LAST_AS_STRING, "pytest", "py.test"],123            ),124            _cnf(),125        ),126        (127            _answers([1, "pytest", ""]),128            _exp(129                "choose current release Python and pytest with defaut deps",130                [tox.PYTHON.CURRENT_RELEASE_ENV, "pytest", "pytest"],131            ),132            _cnf(),133        ),134        (135            _answers([1, "pytest -n auto", "pytest-xdist"]),136            _exp(137                "choose current release Python and pytest with xdist and some args",138                [tox.PYTHON.CURRENT_RELEASE_ENV, "pytest, pytest-xdist", "pytest -n auto"],139            ),140            _cnf(),141        ),142        (143            _answers([2, "pytest", ""]),144            _exp(145                "choose py27, current release Python and pytest with defaut deps",146                ["py27, {}".format(tox.PYTHON.CURRENT_RELEASE_ENV), "pytest", "pytest"],147            ),148            _cnf(),149        ),150        (151            _answers([3, "pytest", ""]),152            _exp("choose all supported version and pytest with defaut deps"),153            _cnf(),154        ),155        (156            _answers([4, "Y", "Y", "Y", "Y", "Y", "N", "py.test", ""]),157            _exp(158                "choose versions individually and use old fashioned py.test",159                [ALL_PY_ENVS_WO_LAST_AS_STRING, "pytest", "py.test"],160            ),161            _cnf(),162        ),163        (164            _answers([4, "", "", "", "", "", "", "", ""]),165            _exp("choose no version individually and defaults"),166            _cnf(),167        ),168        (169            _answers([4, "Y", "Y", "Y", "Y", "Y", "N", "python -m unittest discover", ""]),170            _exp(171                "choose versions individually and use nose with default deps",172                [ALL_PY_ENVS_WO_LAST_AS_STRING, "", "python -m unittest discover"],173            ),174            _cnf(),175        ),176        (177            _answers([4, "Y", "Y", "Y", "Y", "Y", "N", "nosetests", "nose"]),178            _exp(179                "choose versions individually and use nose with default deps",180                [ALL_PY_ENVS_WO_LAST_AS_STRING, "nose", "nosetests"],181            ),182            _cnf(),183        ),184        (185            _answers([4, "Y", "Y", "Y", "Y", "Y", "N", "trial", ""]),186            _exp(187                "choose versions individually and use twisted tests with default deps",188                [ALL_PY_ENVS_WO_LAST_AS_STRING, "twisted", "trial"],189            ),190            _cnf(),191        ),192        (193            _answers([4, "", "", "", "", "", "", "", ""]),194            _exp("existing not overridden, generated to alternative with default name"),195            _cnf(exists=True),196        ),197        (198            _answers([4, "", "", "", "", "", "", "", ""]),199            _exp("existing not overridden, generated to alternative with custom name"),200            _cnf(exists=True, names=["some-other.ini"]),201        ),202        (203            _answers([4, "", "", "", "", "", "", "", ""]),204            _exp("existing not override, generated to alternative"),205            _cnf(exists=True, names=["tox.ini", "some-other.ini"]),206        ),207        (208            _answers([4, "", "", "", "", "", "", "", ""]),209            _exp("existing alternatives are not overridden, generated to alternative"),210            _cnf(exists=True, names=["tox.ini", "setup.py", "some-other.ini"]),211        ),212    ),213)214def test_quickstart(answers, cnf, exp, monkeypatch):215    """Test quickstart script using some little helpers.216    :param _answers answers: user interaction simulation217    :param _cnf cnf: helper for args and config file paths and contents218    :param _exp exp: expectation helper219    """220    monkeypatch.setattr("six.moves.input", answers)221    monkeypatch.setattr("sys.argv", cnf.argv)222    if cnf.exists:223        answers.extend(cnf.names)224        cnf.create()225    main()226    print("generated config at {}:\n{}\n".format(cnf.path_to_generated, cnf.generated_content))227    check_basic_sanity(cnf.generated_content, SIGNS_OF_SANITY)228    assert cnf.generated_content == exp.content229    if cnf.exists:230        assert cnf.already_existing_content == cnf.SOME_CONTENT231def check_basic_sanity(content, signs):232    for sign in signs:233        if sign not in content:...

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