Function test_subprocess

tests/debugpy/test_multiproc.py:168–246

(pyfile, target, run, subProcess, method)

@pytest.mark.parametrize("subProcess", [True, False, None])
@pytest.mark.parametrize("method", ["startDebugging", "debugpyAttach", ""])
def test_subprocess(pyfile, target, run, subProcess, method):
    @pyfile
    def child():
        import os
        import sys

        assert "debugpy" in sys.modules

        import debugpy
        from debuggee import backchannel

        backchannel.send(os.getpid())
        backchannel.send(debugpy.__file__)
        backchannel.send(sys.argv)

    @pyfile
    def parent():
        import debuggee
        import os
        import subprocess
        import sys

        debuggee.setup()
        argv = [sys.executable, sys.argv[1], "--arg1", "--arg2", "--arg3"]
        env = os.environ.copy()
        process = subprocess.Popen(
            argv,
            env=env,
            stdin=subprocess.PIPE,
            stdout=subprocess.PIPE,
            stderr=subprocess.PIPE,
        )
        process.wait()

    with debug.Session() as parent_session:
        backchannel = parent_session.open_backchannel()

        if method:
            parent_session.capabilities["supportsStartDebuggingRequest"] = (method == "startDebugging")
        parent_session.config["preLaunchTask"] = "doSomething"
        parent_session.config["postDebugTask"] = "doSomethingElse"
        if subProcess is not None:
            parent_session.config["subProcess"] = subProcess

        with run(parent_session, target(parent, args=[child])):
            pass

        if subProcess is False:
            return

        expected_child_config = expected_subprocess_config(parent_session)

        if method == "startDebugging":
            subprocess_request = parent_session.timeline.wait_for_next(timeline.Request("startDebugging"))
            child_config = subprocess_request.arguments("configuration", dict)
            del expected_child_config["request"]
        else:
            child_config = parent_session.wait_for_next_event("debugpyAttach")