def test_deserialize_incorrect_type(self):
field = ResourceMeta()
value = True
with pytest.raises(ValidationError) as excinfo:
field.deserialize(value)
assert excinfo.value.args[0] == 'Not a valid mapping type.'
def test_deserialize(self):
field = ResourceMeta()
value = {'active': True}
result = field.deserialize(value)
assert result == value