def test_update_keywords(self):
instance = QSO("key=value1&key=value2&bar=baz")
instance.update(bar="diz")
assert str(instance) == "key=value1&key=value2&bar=diz"
instance.update(diz="doz")
assert str(instance) == "key=value1&key=value2&bar=diz&diz=doz"
instance.update(key="value3")
assert str(instance) == "bar=diz&diz=doz&key=value3"
def test_update(self, src, change, expect):
instance = QSO(src)
instance.update(change)
assert str(instance) == expect