marshmallow-generic/tests/test_schema.py

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2023-03-10 17:49:09 +01:00
from unittest import TestCase
from unittest.mock import MagicMock, patch
from marshmallow_generic import _util, schema
class GenericSchemaTestCase(TestCase):
@patch.object(_util.GenericInsightMixin, "_get_type_arg")
def test_instantiate(self, mock__get_type_arg: MagicMock) -> None:
mock__get_type_arg.return_value = mock_cls = MagicMock()
mock_data = {"foo": "bar", "spam": 123}
class Foo:
pass
schema_obj = schema.GenericSchema[Foo]()
# Explicit annotation to possibly catch mypy errors:
output: Foo = schema_obj.instantiate(mock_data)
self.assertIs(mock_cls.return_value, output)
mock__get_type_arg.assert_called_once_with()
mock_cls.assert_called_once_with(**mock_data)
def test_load(self) -> None:
"""Mainly for static type checking purposes."""
class Foo:
pass
class TestSchema(schema.GenericSchema[Foo]):
pass
single: Foo = TestSchema().load({})
self.assertIsInstance(single, Foo)
multiple: list[Foo] = TestSchema().load([{}], many=True)
self.assertIsInstance(multiple, list)
self.assertIsInstance(multiple[0], Foo)