def test_make_ro():
d = make_ro(SAMPLE_DATA)
assert isinstance(d, RoDict)
assert d['foo'] == 'bar'
assert len(d) == 7
assert [x for x in d] == [x for x in SAMPLE_DATA]
assert isinstance(d['four'], RoList)
assert isinstance(d['nine'], int)
assert isinstance(d['eleven'], float)
assert d['thirteen'] is None
assert isinstance(d['fourteen'], bool)
assert len(d['four']) == 3
assert isinstance(d['four'][2], RoDict)
def test_ro_fail():
with pytest.raises(ValueError):
# noinspection PyTypeChecker
make_ro(object())
def test_ro_on_ro():
d = make_ro(SAMPLE_DATA)
d = make_ro(d)
assert d['foo'] == 'bar'