How to use conftest_contents method in pytest-play

Best Python code snippet using pytest-play_python

test_plugin.py

Source:test_plugin.py

1from collections.abc import Iterable2from pathlib import Path3from typing import Type4import pytest5from _pytest._code import Source6from _pytest.pytester import RunResult7from pytest_lambda import not_implemented_fixture, lambda_fixture, static_fixture8TEST_DIR: Path = Path(__file__).parent9REPO_DIR: Path = TEST_DIR.parent10class AppendableSource(Source):11    def __add__(self, other: Source):12        if isinstance(other, str):13            other = self.__class__(other)14        if isinstance(other, Source):15            other_lines = other.lines16        elif isinstance(other, Iterable):17            other_lines = [str(line) for line in other]18        else:19            raise TypeError(f'Expected an iterable or Source instance, got {type(other)}')20        return self.__class__(self.lines + other_lines)21# Whether pytest-camel-collect is already loaded.22# Used to prevent double-loading the plugin, if it's already been pip-installed.23#24# Because we don't specifically ask pytest to load camel-collect,25# the only reason it ought to be loaded is because `setup.py install` has been run.26# In that case, we don't want to request the plugin to be loaded, or pytest will error.27#28is_camel_collect_plugin_loaded = lambda_fixture(29    lambda request:30        request.config.pluginmanager.has_plugin('camel_collect'))31# Contents of conftest.py in temporary test folder32conftest_contents = lambda_fixture(33    lambda is_camel_collect_plugin_loaded:34        AppendableSource(35            'pytest_plugins = "pytest_camel_collect.plugin"' if not is_camel_collect_plugin_loaded else ''36        ))37# Contents of pytest.ini in temporary test folder38pytest_ini_contents = static_fixture(AppendableSource('''39    [pytest]40    python_files = *.py41'''))42def find_in_test_output(pattern: str, test_result: RunResult) -> bool:43    """Return whether the pattern was fnmatched in test_result's stdout44    """45    try:46        test_result.stdout.fnmatch_lines(pattern)47    except pytest.fail.Exception:48        return False49    else:50        return True51@pytest.fixture(autouse=True)52def setup_syspath(testdir):53    testdir.syspathinsert(REPO_DIR)54@pytest.fixture(autouse=True)55def setup_conftest(testdir, conftest_contents):56    testdir.makeconftest(conftest_contents)57@pytest.fixture(autouse=True)58def setup_pytest_ini(testdir, pytest_ini_contents):59    testdir.makeini(pytest_ini_contents)60class UsingPyTestIniPythonClasses:61    """Mixin to set the value of python_classes in pytest.ini"""62    # Value of `python_classes` to place in pytest.ini63    pytest_python_classes = lambda_fixture('default_pytest_python_classes')64    # The default python_classes setting (simply "Test", at time of writing)65    default_pytest_python_classes = lambda_fixture(66        lambda request:67            request.config._parser._inidict['python_classes'][2])  # description, type, *default*68    # Adds `python_classes` to pytest.ini69    pytest_ini_contents = lambda_fixture(70        lambda pytest_ini_contents, pytest_python_classes:71            pytest_ini_contents + f'python_classes = {pytest_python_classes}')72def WithPyTestIniPythonClasses(python_classes: str) -> Type[UsingPyTestIniPythonClasses]:73    """Returns mixin class adding the specified python_classes setting to pytest.ini74    Usage:75        class TestMyClass(76            WithPyTestIniPythonClasses('Pattern-*'),77        ):78            # ...79    """80    class CustomPytestIniPythonClasses(UsingPyTestIniPythonClasses):81        pytest_python_classes = static_fixture(python_classes)82    return CustomPytestIniPythonClasses83class RunPyTest:84    """Mixin to run a pytest session at each test and store result in test_result fixture"""85    # Source of test file to be tested86    test_source = not_implemented_fixture()87    # Physical test file to be tested88    test_file = lambda_fixture(lambda testdir, test_source: testdir.makepyfile(test_source))89    # Result of running the py.test session90    test_result = lambda_fixture(lambda testdir, test_file: testdir.runpytest_inprocess(test_file, '--verbose'),91                                 autouse=True)92class VerifyPyTestCollection:93    """Mixin to verify the collection/non-collection of tests during a pytest session"""94    # Names of tests which ought to be collected95    expected_collected_tests = not_implemented_fixture()96    # Names of tests which ought not to be collected97    unexpected_collected_tests = not_implemented_fixture()98    def it_collects_expected_tests(self, expected_collected_tests, test_result):99        # XXX: this check can give false positives if test names are not specific enough100        expected = set(expected_collected_tests)101        actual = {name102                  for name in expected_collected_tests103                  if find_in_test_output(f'*{name}*', test_result)}104        assert expected == actual, 'py.test did not collect expected test(s)'105    def it_doesnt_collect_unexpected_tests(self, unexpected_collected_tests, test_result):106        # XXX: this check can give false negatives if test names are not specific enough107        expected = set(unexpected_collected_tests)108        actual = {name109                  for name in unexpected_collected_tests110                  if not find_in_test_output(f'*{name}*', test_result)}111        assert expected == actual, 'py.test collected unexpected test(s)'112class StrictVerifyPyTestCollection(VerifyPyTestCollection):113    """Mixin to verify only the specified tests were collected"""114    # TODO115class TestCamelCollector(116    RunPyTest,117):118    test_source = static_fixture('''119        def test_sanity_check():120            # I should always be collected121            pass122        class ForTheLoveOfCollection:123            def test_on_camel_boundary(self):124                pass125            class ForTheChildren:126                def test_child_on_camel_boundary(self):127                    pass128        class ForgiveMeFatherForIHaveNotCollected:129            def test_not_on_camel_boundary(self):130                pass131            class ForgiveTheChildren:132                def test_child_not_on_camel_boundary(self):133                    pass134    ''')135    class WithCamelWordBoundaries(136        VerifyPyTestCollection,137        WithPyTestIniPythonClasses('For-*'),  # with a dash to only match word boundaries138    ):139        expected_collected_tests = static_fixture([140            'test_sanity_check',141            'test_on_camel_boundary',142            'test_child_on_camel_boundary',143        ])144        unexpected_collected_tests = static_fixture([145            'test_not_on_camel_boundary',146            'test_child_not_on_camel_boundary',147        ])148    class WithoutCamelWordBoundaries(149        VerifyPyTestCollection,150        WithPyTestIniPythonClasses('For*'),  # without a dash to match substring anywhere, even across word boundaries151    ):152        expected_collected_tests = static_fixture([153            'test_sanity_check',154            'test_on_camel_boundary',155            'test_child_on_camel_boundary',156            'test_not_on_camel_boundary',157            'test_child_not_on_camel_boundary',158        ])...

test_repeat.py

Source:test_repeat.py

1import pytest2@pytest.fixture3def conftest_contents():4    return """5import pytest6@pytest.fixture(autouse=True)7def __pytest_repeater_play_test(request):8    pass9@pytest.hookimpl(trylast=True)10def pytest_generate_tests(metafunc):11    metafunc.parametrize(12        '__pytest_repeater_play_test',13        range(2),14        indirect=True,15    )16"""17def test_repeater(testdir, conftest_contents):...

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