def test_normalize_kwargs_fail(inp, kwargs_to_norm):
    with pytest.raises(TypeError):
        cbook.normalize_kwargs(inp, **kwargs_to_norm)

def test_normalize_kwargs_pass(inp, expected, kwargs_to_norm):
    with warnings.catch_warnings(record=True) as w:
        warnings.simplefilter("always")
        assert expected == cbook.normalize_kwargs(inp, **kwargs_to_norm)
        assert len(w) == 0

def _kwarg_norm_helper(inp, expected, kwargs_to_norm, warn_count=0):

    with warnings.catch_warnings(record=True) as w:
        warnings.simplefilter("always")
        assert expected == cbook.normalize_kwargs(inp, **kwargs_to_norm)
        assert len(w) == warn_count