Method test_capturing_basic_api

testing/test_capture.py:65–92

(self, method)

class TestCaptureManager:
    @pytest.mark.parametrize("method", ["no", "sys", "fd"])
    def test_capturing_basic_api(self, method) -> None:
        capouter = StdCaptureFD()
        old = sys.stdout, sys.stderr, sys.stdin
        try:
            capman = CaptureManager(method)
            capman.start_global_capturing()
            capman.suspend_global_capture()
            outerr = capman.read_global_capture()
            assert outerr == ("", "")
            capman.suspend_global_capture()
            outerr = capman.read_global_capture()
            assert outerr == ("", "")
            print("hello")
            capman.suspend_global_capture()
            out, _err = capman.read_global_capture()
            if method == "no":
                assert old == (sys.stdout, sys.stderr, sys.stdin)
            else:
                assert not out
            capman.resume_global_capture()
            print("hello")
            capman.suspend_global_capture()
            out, _err = capman.read_global_capture()
            if method != "no":
                assert out == "hello\n"
            capman.stop_global_capturing()
        finally:
            capouter.stop_capturing()

    def test_init_capturing(self):
        capouter = StdCaptureFD()