Function _tests

noxfile.py:201–329

(
    session: nox.Session,
    database: str,
    cext: str = "_auto",
    greenlet: bool = True,
    backendonly: bool = False,
    platform_intensive: bool = False,
    timing_intensive: bool = True,
    coverage: bool = False,
)

def _tests(
    session: nox.Session,
    database: str,
    cext: str = "_auto",
    greenlet: bool = True,
    backendonly: bool = False,
    platform_intensive: bool = False,
    timing_intensive: bool = True,
    coverage: bool = False,
) -> None:

    # ensure external PYTHONPATH not interfering
    session.env["PYTHONPATH"] = ""

    # PYTHONNOUSERSITE - this *MUST* be set so that the ./lib/ import
    # set up explicitly in test/conftest.py is *disabled*, so that
    # when SQLAlchemy is built into the .nox area, we use that and not the
    # local checkout, at least when usedevelop=False
    session.env["PYTHONNOUSERSITE"] = "1"

    freethreaded = isinstance(session.python, str) and session.python.endswith(
        "t"
    )

    if freethreaded:
        session.env["PYTHON_GIL"] = "0"

        # greenlet frequently crashes with freethreading, so omit
        # for the near future
        greenlet = False

    session.env["SQLALCHEMY_WARN_20"] = "1"

    if cext == "cext":
        session.env["REQUIRE_SQLALCHEMY_CEXT"] = "1"
    elif cext == "nocext":
        session.env["DISABLE_SQLALCHEMY_CEXT"] = "1"

    includes_excludes: dict[str, list[str]] = {"k": [], "m": []}

    if coverage:
        timing_intensive = False

    if platform_intensive:
        # platform_intensive refers to test/aaa_profiling/test_memusage.py.
        # it's only run exclusively of all other tests.   does not include
        # greenlet related tests
        greenlet = False
        # with "-m memory_intensive", only that suite will run, all
        # other tests will be deselected by pytest
        includes_excludes["m"].append("memory_intensive")
    elif backendonly:
        # with "-m backendonly", only tests with the backend pytest mark
        # (or pytestplugin equivalent, like __backend__) will be selected
        # by pytest.
        # memory intensive is deselected to prevent these from running
        includes_excludes["m"].extend(["backend", "not memory_intensive"])
    else: