Class Tester

tests/test_formatters.py:538–549

def test_pass_correct_include_exclude():
    class Tester(object):
        def __init__(self, include=None, exclude=None):
            self.include = include
            self.exclude = exclude

        def _repr_mimebundle_(self, include, exclude, **kwargs):
            if include and (include != self.include):
                raise ValueError("include got modified: display() may be broken.")
            if exclude and (exclude != self.exclude):
                raise ValueError("exclude got modified: display() may be broken.")

            return None

    include = {"a", "b", "c"}
    exclude = {"c", "e", "f"}