def test_schemas(md, expected):
if expected is SAME:
expected = dict(md)
if inspect.isclass(expected):
with pytest.raises(expected):
validate_metadata(md)
else:
assert validate_metadata(md) == expected
def test_no_variety():
with pytest.raises(ValueError):
validate_metadata({'test': 'a'})
def test_empty_md():
validate_metadata({})