Function _session_tests

samples/compute/noxfile.py:186–239

(
    session: nox.sessions.Session, post_install: Callable = None
)

def _session_tests(
    session: nox.sessions.Session, post_install: Callable = None
) -> None:
    # check for presence of tests
    test_list = glob.glob("**/*_test.py", recursive=True) + glob.glob(
        "**/test_*.py", recursive=True
    )
    test_list.extend(glob.glob("**/tests", recursive=True))

    if len(test_list) == 0:
        print("No tests found, skipping directory.")
        return

    if TEST_CONFIG["pip_version_override"]:
        pip_version = TEST_CONFIG["pip_version_override"]
        session.install(f"pip=={pip_version}")
    """Runs py.test for a particular project."""
    concurrent_args = []
    if os.path.exists("requirements.txt"):
        if os.path.exists("constraints.txt"):
            session.install("-r", "requirements.txt", "-c", "constraints.txt")
        else:
            session.install("-r", "requirements.txt")
        with open("requirements.txt") as rfile:
            packages = rfile.read()

    if os.path.exists("requirements-test.txt"):
        if os.path.exists("constraints-test.txt"):
            session.install("-r", "requirements-test.txt", "-c", "constraints-test.txt")
        else:
            session.install("-r", "requirements-test.txt")
        with open("requirements-test.txt") as rtfile:
            packages += rtfile.read()

    if INSTALL_LIBRARY_FROM_SOURCE:
        session.install("-e", _get_repo_root())

    if post_install:
        post_install(session)

    if "pytest-parallel" in packages:
        concurrent_args.extend(["--workers", "auto", "--tests-per-worker", "auto"])
    elif "pytest-xdist" in packages:
        concurrent_args.extend(["-n", "auto"])

    session.run(
        "pytest",
        *(PYTEST_COMMON_ARGS + session.posargs + concurrent_args),
        # Pytest will return 5 when no tests are collected. This can happen
        # on travis where slow and flaky tests are excluded.
        # See http://doc.pytest.org/en/latest/_modules/_pytest/main.html
        success_codes=[0, 5],
        env=get_pytest_env_vars(),
    )


@nox.session(python=ALL_VERSIONS)