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Diffstat (limited to 'tests/test_helpers.py')
| -rw-r--r-- | tests/test_helpers.py | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/tests/test_helpers.py b/tests/test_helpers.py new file mode 100644 index 000000000..f08239981 --- /dev/null +++ b/tests/test_helpers.py @@ -0,0 +1,366 @@ +import asyncio +import inspect +import unittest +import unittest.mock + +import discord + +from tests import helpers + + +class DiscordMocksTests(unittest.TestCase): + """Tests for our specialized discord.py mocks.""" + + def test_mock_role_default_initialization(self): + """Test if the default initialization of MockRole results in the correct object.""" + role = helpers.MockRole() + + # The `spec` argument makes sure `isistance` checks with `discord.Role` pass + self.assertIsInstance(role, discord.Role) + + self.assertEqual(role.name, "role") + self.assertEqual(role.id, 1) + self.assertEqual(role.position, 1) + self.assertEqual(role.mention, "&role") + + def test_mock_role_alternative_arguments(self): + """Test if MockRole initializes with the arguments provided.""" + role = helpers.MockRole( + name="Admins", + role_id=90210, + position=10, + ) + + self.assertEqual(role.name, "Admins") + self.assertEqual(role.id, 90210) + self.assertEqual(role.position, 10) + self.assertEqual(role.mention, "&Admins") + + def test_mock_role_accepts_dynamic_arguments(self): + """Test if MockRole accepts and sets abitrary keyword arguments.""" + role = helpers.MockRole( + guild="Dino Man", + hoist=True, + ) + + self.assertEqual(role.guild, "Dino Man") + self.assertTrue(role.hoist) + + def test_mock_role_uses_position_for_less_than_greater_than(self): + """Test if `<` and `>` comparisons for MockRole are based on its position attribute.""" + role_one = helpers.MockRole(position=1) + role_two = helpers.MockRole(position=2) + role_three = helpers.MockRole(position=3) + + self.assertLess(role_one, role_two) + self.assertLess(role_one, role_three) + self.assertLess(role_two, role_three) + self.assertGreater(role_three, role_two) + self.assertGreater(role_three, role_one) + self.assertGreater(role_two, role_one) + + def test_mock_member_default_initialization(self): + """Test if the default initialization of Mockmember results in the correct object.""" + member = helpers.MockMember() + + # The `spec` argument makes sure `isistance` checks with `discord.Member` pass + self.assertIsInstance(member, discord.Member) + + self.assertEqual(member.name, "member") + self.assertEqual(member.id, 1) + self.assertListEqual(member.roles, [helpers.MockRole("@everyone", 1)]) + self.assertEqual(member.mention, "@member") + + def test_mock_member_alternative_arguments(self): + """Test if MockMember initializes with the arguments provided.""" + core_developer = helpers.MockRole("Core Developer", 2) + member = helpers.MockMember( + name="Mark", + user_id=12345, + roles=[core_developer] + ) + + self.assertEqual(member.name, "Mark") + self.assertEqual(member.id, 12345) + self.assertListEqual(member.roles, [helpers.MockRole("@everyone", 1), core_developer]) + self.assertEqual(member.mention, "@Mark") + + def test_mock_member_accepts_dynamic_arguments(self): + """Test if MockMember accepts and sets abitrary keyword arguments.""" + member = helpers.MockMember( + nick="Dino Man", + colour=discord.Colour.default(), + ) + + self.assertEqual(member.nick, "Dino Man") + self.assertEqual(member.colour, discord.Colour.default()) + + def test_mock_guild_default_initialization(self): + """Test if the default initialization of Mockguild results in the correct object.""" + guild = helpers.MockGuild() + + # The `spec` argument makes sure `isistance` checks with `discord.Guild` pass + self.assertIsInstance(guild, discord.Guild) + + self.assertListEqual(guild.roles, [helpers.MockRole("@everyone", 1)]) + self.assertListEqual(guild.members, []) + + def test_mock_guild_alternative_arguments(self): + """Test if MockGuild initializes with the arguments provided.""" + core_developer = helpers.MockRole("Core Developer", 2) + guild = helpers.MockGuild( + roles=[core_developer], + members=[helpers.MockMember(user_id=54321)], + ) + + self.assertListEqual(guild.roles, [helpers.MockRole("@everyone", 1), core_developer]) + self.assertListEqual(guild.members, [helpers.MockMember(user_id=54321)]) + + def test_mock_guild_accepts_dynamic_arguments(self): + """Test if MockGuild accepts and sets abitrary keyword arguments.""" + guild = helpers.MockGuild( + emojis=(":hyperjoseph:", ":pensive_ela:"), + premium_subscription_count=15, + ) + + self.assertTupleEqual(guild.emojis, (":hyperjoseph:", ":pensive_ela:")) + self.assertEqual(guild.premium_subscription_count, 15) + + def test_mock_bot_default_initialization(self): + """Tests if MockBot initializes with the correct values.""" + bot = helpers.MockBot() + + # The `spec` argument makes sure `isistance` checks with `discord.ext.commands.Bot` pass + self.assertIsInstance(bot, discord.ext.commands.Bot) + + def test_mock_context_default_initialization(self): + """Tests if MockContext initializes with the correct values.""" + context = helpers.MockContext() + + # The `spec` argument makes sure `isistance` checks with `discord.ext.commands.Context` pass + self.assertIsInstance(context, discord.ext.commands.Context) + + self.assertIsInstance(context.bot, helpers.MockBot) + self.assertIsInstance(context.guild, helpers.MockGuild) + self.assertIsInstance(context.author, helpers.MockMember) + + def test_mocks_allows_access_to_attributes_part_of_spec(self): + """Accessing attributes that are valid for the objects they mock should succeed.""" + mocks = ( + (helpers.MockGuild(), 'name'), + (helpers.MockRole(), 'hoist'), + (helpers.MockMember(), 'display_name'), + (helpers.MockBot(), 'user'), + (helpers.MockContext(), 'invoked_with'), + (helpers.MockTextChannel(), 'last_message'), + (helpers.MockMessage(), 'mention_everyone'), + ) + + for mock, valid_attribute in mocks: + with self.subTest(mock=mock): + try: + getattr(mock, valid_attribute) + except AttributeError: + msg = f"accessing valid attribute `{valid_attribute}` raised an AttributeError" + self.fail(msg) + + @unittest.mock.patch(f'{__name__}.DiscordMocksTests.subTest') + @unittest.mock.patch(f'{__name__}.getattr') + def test_mock_allows_access_to_attributes_test(self, mock_getattr, mock_subtest): + """The valid attribute test should raise an AssertionError after an AttributeError.""" + mock_getattr.side_effect = AttributeError + + msg = "accessing valid attribute `name` raised an AttributeError" + with self.assertRaises(AssertionError, msg=msg): + self.test_mocks_allows_access_to_attributes_part_of_spec() + + def test_mocks_rejects_access_to_attributes_not_part_of_spec(self): + """Accessing attributes that are invalid for the objects they mock should fail.""" + mocks = ( + helpers.MockGuild(), + helpers.MockRole(), + helpers.MockMember(), + helpers.MockBot(), + helpers.MockContext(), + helpers.MockTextChannel(), + helpers.MockMessage(), + ) + + for mock in mocks: + with self.subTest(mock=mock): + with self.assertRaises(AttributeError): + mock.the_cake_is_a_lie + + def test_custom_mock_methods_are_valid_discord_object_methods(self): + """The `AsyncMock` attributes of the mocks should be valid for the class they're mocking.""" + mocks = ( + (helpers.MockGuild, helpers.guild_instance), + (helpers.MockRole, helpers.role_instance), + (helpers.MockMember, helpers.member_instance), + (helpers.MockBot, helpers.bot_instance), + (helpers.MockContext, helpers.context_instance), + (helpers.MockTextChannel, helpers.channel_instance), + (helpers.MockMessage, helpers.message_instance), + ) + + for mock_class, instance in mocks: + mock = mock_class() + async_methods = ( + attr for attr in dir(mock) if isinstance(getattr(mock, attr), helpers.AsyncMock) + ) + + # spec_mock = unittest.mock.MagicMock(spec=instance) + for method in async_methods: + with self.subTest(mock_class=mock_class, method=method): + try: + getattr(instance, method) + except AttributeError: + msg = f"method {method} is not a method attribute of {instance.__class__}" + self.fail(msg) + + @unittest.mock.patch(f'{__name__}.DiscordMocksTests.subTest') + def test_the_custom_mock_methods_test(self, subtest_mock): + """The custom method test should raise AssertionError for invalid methods.""" + class FakeMockBot(helpers.AttributeMock, unittest.mock.MagicMock): + """Fake MockBot class with invalid attribute/method `release_the_walrus`.""" + + attribute_mocktype = unittest.mock.MagicMock + + def __init__(self, **kwargs): + super().__init__(spec=helpers.bot_instance, **kwargs) + + # Fake attribute + self.release_the_walrus = helpers.AsyncMock() + + with unittest.mock.patch("tests.helpers.MockBot", new=FakeMockBot): + msg = "method release_the_walrus is not a valid method of <class 'discord.ext.commands.bot.Bot'>" + with self.assertRaises(AssertionError, msg=msg): + self.test_custom_mock_methods_are_valid_discord_object_methods() + + +class MockObjectTests(unittest.TestCase): + """Tests the mock objects and mixins we've defined.""" + + @classmethod + def setUpClass(cls): + cls.hashable_mocks = (helpers.MockRole, helpers.MockMember, helpers.MockGuild) + + def test_colour_mixin(self): + """Test if the ColourMixin adds aliasing of color -> colour for child classes.""" + class MockHemlock(unittest.mock.MagicMock, helpers.ColourMixin): + pass + + hemlock = MockHemlock() + hemlock.color = 1 + self.assertEqual(hemlock.colour, 1) + self.assertEqual(hemlock.colour, hemlock.color) + + def test_hashable_mixin_hash_returns_id(self): + """Test if the HashableMixing uses the id attribute for hashing.""" + class MockScragly(unittest.mock.Mock, helpers.HashableMixin): + pass + + scragly = MockScragly() + scragly.id = 10 + self.assertEqual(hash(scragly), scragly.id) + + def test_hashable_mixin_uses_id_for_equality_comparison(self): + """Test if the HashableMixing uses the id attribute for hashing.""" + class MockScragly(unittest.mock.Mock, helpers.HashableMixin): + pass + + scragly = MockScragly(spec=object) + scragly.id = 10 + eevee = MockScragly(spec=object) + eevee.id = 10 + python = MockScragly(spec=object) + python.id = 20 + + self.assertTrue(scragly == eevee) + self.assertFalse(scragly == python) + + def test_hashable_mixin_uses_id_for_nonequality_comparison(self): + """Test if the HashableMixing uses the id attribute for hashing.""" + class MockScragly(unittest.mock.Mock, helpers.HashableMixin): + pass + + scragly = MockScragly(spec=object) + scragly.id = 10 + eevee = MockScragly(spec=object) + eevee.id = 10 + python = MockScragly(spec=object) + python.id = 20 + + self.assertTrue(scragly != python) + self.assertFalse(scragly != eevee) + + def test_mock_class_with_hashable_mixin_uses_id_for_hashing(self): + """Test if the MagicMock subclasses that implement the HashableMixin use id for hash.""" + for mock in self.hashable_mocks: + with self.subTest(mock_class=mock): + instance = helpers.MockRole(role_id=100) + self.assertEqual(hash(instance), instance.id) + + def test_mock_class_with_hashable_mixin_uses_id_for_equality(self): + """Test if MagicMocks that implement the HashableMixin use id for equality comparisons.""" + for mock_class in self.hashable_mocks: + with self.subTest(mock_class=mock_class): + instance_one = mock_class() + instance_two = mock_class() + instance_three = mock_class() + + instance_one.id = 10 + instance_two.id = 10 + instance_three.id = 20 + + self.assertTrue(instance_one == instance_two) + self.assertFalse(instance_one == instance_three) + + def test_mock_class_with_hashable_mixin_uses_id_for_nonequality(self): + """Test if MagicMocks that implement HashableMixin use id for nonequality comparisons.""" + for mock_class in self.hashable_mocks: + with self.subTest(mock_class=mock_class): + instance_one = mock_class() + instance_two = mock_class() + instance_three = mock_class() + + instance_one.id = 10 + instance_two.id = 10 + instance_three.id = 20 + + self.assertFalse(instance_one != instance_two) + self.assertTrue(instance_one != instance_three) + + def test_spec_propagation_of_mock_subclasses(self): + """Test if the `spec` does not propagate to attributes of the mock object.""" + test_values = ( + (helpers.MockGuild, "region"), + (helpers.MockRole, "mentionable"), + (helpers.MockMember, "display_name"), + (helpers.MockBot, "owner_id"), + (helpers.MockContext, "command_failed"), + ) + + for mock_type, valid_attribute in test_values: + with self.subTest(mock_type=mock_type, attribute=valid_attribute): + mock = mock_type() + self.assertTrue(isinstance(mock, mock_type)) + attribute = getattr(mock, valid_attribute) + self.assertTrue(isinstance(attribute, mock_type.attribute_mocktype)) + + def test_async_mock_provides_coroutine_for_dunder_call(self): + """Test if AsyncMock objects have a coroutine for their __call__ method.""" + async_mock = helpers.AsyncMock() + self.assertTrue(inspect.iscoroutinefunction(async_mock.__call__)) + + coroutine = async_mock() + self.assertTrue(inspect.iscoroutine(coroutine)) + self.assertIsNotNone(asyncio.run(coroutine)) + + def test_async_test_decorator_allows_synchronous_call_to_async_def(self): + """Test if the `async_test` decorator allows an `async def` to be called synchronously.""" + @helpers.async_test + async def kosayoda(): + return "return value" + + self.assertEqual(kosayoda(), "return value") |