Function test_interruptible_core_debugger

IPython/core/tests/test_debugger.py:240–260

The debugger can be interrupted. The presumption is there is some mechanism that causes a KeyboardInterrupt (this is implemented in ipykernel). We want to ensure the KeyboardInterrupt cause debugging to cease.

()

def test_interruptible_core_debugger():
    """The debugger can be interrupted.

    The presumption is there is some mechanism that causes a KeyboardInterrupt
    (this is implemented in ipykernel).  We want to ensure the
    KeyboardInterrupt cause debugging to cease.
    """
    def raising_input(msg="", called=[0]):
        called[0] += 1
        if called[0] == 1:
            raise KeyboardInterrupt()
        else:
            raise AssertionError("input() should only be called once!")

    with patch.object(builtins, "input", raising_input):
        debugger.InterruptiblePdb().set_trace()
        # The way this test will fail is by set_trace() never exiting,
        # resulting in a timeout by the test runner. The alternative
        # implementation would involve a subprocess, but that adds issues with
        # interrupting subprocesses that are rather complex, so it's simpler
        # just to do it this way.

@skip_win32
def test_xmode_skip():