Function test_side_effects_I

IPython/core/tests/test_inputtransformer2.py:308–320

()

def test_side_effects_I():
    count = 0
    def counter(lines):
        nonlocal count
        count += 1
        return lines

    counter.has_side_effects = True

    manager = ipt2.TransformerManager()
    manager.cleanup_transforms.insert(0, counter)
    assert manager.check_complete("a=1\n") == ('complete', None)
    assert count == 0