def prerelease_deps()

in noxfile.py [0:0]

• 64 lines of code
• 4 McCabe index (conditional complexity)

def prerelease_deps(session):
    """Run all tests with prerelease versions of dependencies installed."""

    # Install all dependencies
    session.install("-e", ".[all, tests, tracing]")
    unit_deps_all = UNIT_TEST_STANDARD_DEPENDENCIES + UNIT_TEST_EXTERNAL_DEPENDENCIES
    session.install(*unit_deps_all)
    system_deps_all = (
        SYSTEM_TEST_STANDARD_DEPENDENCIES + SYSTEM_TEST_EXTERNAL_DEPENDENCIES
    )
    session.install(*system_deps_all)

    # Because we test minimum dependency versions on the minimum Python
    # version, the first version we test with in the unit tests sessions has a
    # constraints file containing all dependencies and extras.
    with open(
        CURRENT_DIRECTORY
        / "testing"
        / f"constraints-{UNIT_TEST_PYTHON_VERSIONS[0]}.txt",
        encoding="utf-8",
    ) as constraints_file:
        constraints_text = constraints_file.read()

    # Ignore leading whitespace and comment lines.
    constraints_deps = [
        match.group(1)
        for match in re.finditer(
            r"^\s*(\S+)(?===\S+)", constraints_text, flags=re.MULTILINE
        )
    ]

    session.install(*constraints_deps)

    prerel_deps = [
        "protobuf",
        # dependency of grpc
        "six",
        "googleapis-common-protos",
        # Exclude version 1.52.0rc1 which has a known issue. See https://github.com/grpc/grpc/issues/32163
        "grpcio!=1.52.0rc1",
        "grpcio-status",
        "google-api-core",
        "google-auth",
        "proto-plus",
        "google-cloud-testutils",
        # dependencies of google-cloud-testutils"
        "click",
    ]

    for dep in prerel_deps:
        session.install("--pre", "--no-deps", "--upgrade", dep)

    # Remaining dependencies
    other_deps = [
        "requests",
    ]
    session.install(*other_deps)

    # Print out prerelease package versions
    session.run(
        "python", "-c", "import google.protobuf; print(google.protobuf.__version__)"
    )
    session.run("python", "-c", "import grpc; print(grpc.__version__)")
    session.run("python", "-c", "import google.auth; print(google.auth.__version__)")

    session.run("py.test", "tests/unit")

    system_test_path = os.path.join("tests", "system.py")
    system_test_folder_path = os.path.join("tests", "system")

    # Only run system tests if found.
    if os.path.exists(system_test_path):
        session.run(
            "py.test",
            "--verbose",
            f"--junitxml=system_{session.python}_sponge_log.xml",
            system_test_path,
            *session.posargs,
        )
    if os.path.exists(system_test_folder_path):
        session.run(
            "py.test",
            "--verbose",
            f"--junitxml=system_{session.python}_sponge_log.xml",
            system_test_folder_path,
            *session.posargs,
        )