Function test_simple_execution

tests/integration/test_smoke.py:44–70

Test that we can retrieve the thread state of a single process. This test is specially useful to run under valgrind or similar tools and to quickly check that the very basic functionality works as expected.

(method, blocking, use_process_vm_readv, tmpdir, monkeypatch)

    "use_process_vm_readv", [True, False], ids=["process_vm_readv", "/proc/PID/mem"]
)
def test_simple_execution(method, blocking, use_process_vm_readv, tmpdir, monkeypatch):
    """Test that we can retrieve the thread state of a single process.

    This test is specially useful to run under valgrind or similar tools and to
    quickly check that the very basic functionality works as expected.
    """

    # GIVEN
    env_var = "_PYSTACK_NO_PROCESS_VM_READV"
    if use_process_vm_readv:
        monkeypatch.delenv(env_var, raising=False)
    else:
        monkeypatch.setenv(env_var, "1")

    # WHEN
    with spawn_child_process(
        sys.executable, TEST_SINGLE_THREAD_FILE, tmpdir
    ) as child_process:
        with xfail_on_expected_exceptions(method):
            threads = list(
                get_process_threads(
                    child_process.pid, method=method, stop_process=blocking
                )
            )

    # THEN
    assert threads is not None


@pytest.mark.parametrize("method", STACK_METHODS)