Function transform_checker

IPython/core/tests/test_inputtransformer.py:21–32

Utility to loop over test inputs

(tests, transformer, **kwargs)

# Transformer tests
def transform_checker(tests, transformer, **kwargs):
    """Utility to loop over test inputs"""
    transformer = transformer(**kwargs)
    try:
        for inp, tr in tests:
            if inp is None:
                out = transformer.reset()
            else:
                out = transformer.push(inp)
            nt.assert_equal(out, tr)
    finally:
        transformer.reset()

# Data for all the syntax tests in the form of lists of pairs of
# raw/transformed input.  We store it here as a global dict so that we can use