Function test_disable_plugin_autoload

testing/test_config.py:1060–1101

(
    pytester: Pytester,
    monkeypatch: MonkeyPatch,
    parse_args: Union[Tuple[str, str], Tuple[()]],
    should_load: bool,
)

    "parse_args,should_load", [(("-p", "mytestplugin"), True), ((), False)]
)
def test_disable_plugin_autoload(
    pytester: Pytester,
    monkeypatch: MonkeyPatch,
    parse_args: Union[Tuple[str, str], Tuple[()]],
    should_load: bool,
) -> None:
    class DummyEntryPoint:
        project_name = name = "mytestplugin"
        group = "pytest11"
        version = "1.0"

        def load(self):
            return sys.modules[self.name]

    class Distribution:
        metadata = {"name": "foo"}
        entry_points = (DummyEntryPoint(),)
        files = ()

    class PseudoPlugin:
        x = 42

        attrs_used = []

        def __getattr__(self, name):
            assert name == "__loader__"
            self.attrs_used.append(name)
            return object()

    def distributions():
        return (Distribution(),)

    monkeypatch.setenv("PYTEST_DISABLE_PLUGIN_AUTOLOAD", "1")
    monkeypatch.setattr(importlib_metadata, "distributions", distributions)
    monkeypatch.setitem(sys.modules, "mytestplugin", PseudoPlugin())  # type: ignore[misc]
    config = pytester.parseconfig(*parse_args)
    has_loaded = config.pluginmanager.get_plugin("mytestplugin") is not None
    assert has_loaded == should_load
    if should_load:
        assert PseudoPlugin.attrs_used == ["__loader__"]
    else:
        assert PseudoPlugin.attrs_used == []


def test_plugin_loading_order(pytester: Pytester) -> None: