2022-09-17 15:26:13 +03:00
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import asyncio
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import gc
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import inspect
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import re
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import unittest
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from contextlib import contextmanager
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from asyncio import run, iscoroutinefunction
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from unittest import IsolatedAsyncioTestCase
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from unittest.mock import (ANY, call, AsyncMock, patch, MagicMock, Mock,
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create_autospec, sentinel, _CallList)
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def tearDownModule():
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asyncio.set_event_loop_policy(None)
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class AsyncClass:
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def __init__(self): pass
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async def async_method(self): pass
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def normal_method(self): pass
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@classmethod
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async def async_class_method(cls): pass
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@staticmethod
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async def async_static_method(): pass
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class AwaitableClass:
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def __await__(self): yield
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async def async_func(): pass
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async def async_func_args(a, b, *, c): pass
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def normal_func(): pass
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class NormalClass(object):
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def a(self): pass
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async_foo_name = f'{__name__}.AsyncClass'
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normal_foo_name = f'{__name__}.NormalClass'
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@contextmanager
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def assertNeverAwaited(test):
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with test.assertWarnsRegex(RuntimeWarning, "was never awaited$"):
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yield
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# In non-CPython implementations of Python, this is needed because timely
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# deallocation is not guaranteed by the garbage collector.
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gc.collect()
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class AsyncPatchDecoratorTest(unittest.TestCase):
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def test_is_coroutine_function_patch(self):
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@patch.object(AsyncClass, 'async_method')
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def test_async(mock_method):
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self.assertTrue(iscoroutinefunction(mock_method))
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test_async()
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def test_is_async_patch(self):
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@patch.object(AsyncClass, 'async_method')
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def test_async(mock_method):
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m = mock_method()
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self.assertTrue(inspect.isawaitable(m))
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run(m)
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@patch(f'{async_foo_name}.async_method')
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def test_no_parent_attribute(mock_method):
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m = mock_method()
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self.assertTrue(inspect.isawaitable(m))
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run(m)
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test_async()
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test_no_parent_attribute()
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def test_is_AsyncMock_patch(self):
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@patch.object(AsyncClass, 'async_method')
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def test_async(mock_method):
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self.assertIsInstance(mock_method, AsyncMock)
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test_async()
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def test_is_AsyncMock_patch_staticmethod(self):
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@patch.object(AsyncClass, 'async_static_method')
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def test_async(mock_method):
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self.assertIsInstance(mock_method, AsyncMock)
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test_async()
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def test_is_AsyncMock_patch_classmethod(self):
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@patch.object(AsyncClass, 'async_class_method')
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def test_async(mock_method):
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self.assertIsInstance(mock_method, AsyncMock)
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test_async()
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def test_async_def_patch(self):
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@patch(f"{__name__}.async_func", return_value=1)
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@patch(f"{__name__}.async_func_args", return_value=2)
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async def test_async(func_args_mock, func_mock):
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self.assertEqual(func_args_mock._mock_name, "async_func_args")
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self.assertEqual(func_mock._mock_name, "async_func")
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self.assertIsInstance(async_func, AsyncMock)
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self.assertIsInstance(async_func_args, AsyncMock)
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self.assertEqual(await async_func(), 1)
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self.assertEqual(await async_func_args(1, 2, c=3), 2)
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run(test_async())
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self.assertTrue(inspect.iscoroutinefunction(async_func))
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class AsyncPatchCMTest(unittest.TestCase):
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def test_is_async_function_cm(self):
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def test_async():
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with patch.object(AsyncClass, 'async_method') as mock_method:
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self.assertTrue(iscoroutinefunction(mock_method))
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test_async()
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def test_is_async_cm(self):
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def test_async():
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with patch.object(AsyncClass, 'async_method') as mock_method:
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m = mock_method()
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self.assertTrue(inspect.isawaitable(m))
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run(m)
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test_async()
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def test_is_AsyncMock_cm(self):
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def test_async():
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with patch.object(AsyncClass, 'async_method') as mock_method:
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self.assertIsInstance(mock_method, AsyncMock)
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test_async()
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def test_async_def_cm(self):
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async def test_async():
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with patch(f"{__name__}.async_func", AsyncMock()):
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self.assertIsInstance(async_func, AsyncMock)
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self.assertTrue(inspect.iscoroutinefunction(async_func))
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run(test_async())
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class AsyncMockTest(unittest.TestCase):
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def test_iscoroutinefunction_default(self):
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mock = AsyncMock()
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self.assertTrue(iscoroutinefunction(mock))
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def test_iscoroutinefunction_function(self):
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async def foo(): pass
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mock = AsyncMock(foo)
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self.assertTrue(iscoroutinefunction(mock))
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self.assertTrue(inspect.iscoroutinefunction(mock))
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def test_isawaitable(self):
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mock = AsyncMock()
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m = mock()
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self.assertTrue(inspect.isawaitable(m))
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run(m)
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self.assertIn('assert_awaited', dir(mock))
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def test_iscoroutinefunction_normal_function(self):
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def foo(): pass
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mock = AsyncMock(foo)
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self.assertTrue(iscoroutinefunction(mock))
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self.assertTrue(inspect.iscoroutinefunction(mock))
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def test_future_isfuture(self):
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loop = asyncio.new_event_loop()
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asyncio.set_event_loop(loop)
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fut = asyncio.Future()
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loop.stop()
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loop.close()
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mock = AsyncMock(fut)
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self.assertIsInstance(mock, asyncio.Future)
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class AsyncAutospecTest(unittest.TestCase):
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def test_is_AsyncMock_patch(self):
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@patch(async_foo_name, autospec=True)
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def test_async(mock_method):
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self.assertIsInstance(mock_method.async_method, AsyncMock)
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self.assertIsInstance(mock_method, MagicMock)
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@patch(async_foo_name, autospec=True)
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def test_normal_method(mock_method):
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self.assertIsInstance(mock_method.normal_method, MagicMock)
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test_async()
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test_normal_method()
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def test_create_autospec_instance(self):
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with self.assertRaises(RuntimeError):
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create_autospec(async_func, instance=True)
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2022-10-09 16:27:10 +03:00
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@unittest.skip('Broken test from https://bugs.python.org/issue37251')
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2022-09-17 15:26:13 +03:00
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def test_create_autospec_awaitable_class(self):
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2022-10-09 16:27:10 +03:00
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self.assertIsInstance(create_autospec(AwaitableClass), AsyncMock)
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2022-09-17 15:26:13 +03:00
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def test_create_autospec(self):
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spec = create_autospec(async_func_args)
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awaitable = spec(1, 2, c=3)
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async def main():
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await awaitable
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self.assertEqual(spec.await_count, 0)
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self.assertIsNone(spec.await_args)
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self.assertEqual(spec.await_args_list, [])
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spec.assert_not_awaited()
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run(main())
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self.assertTrue(iscoroutinefunction(spec))
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self.assertTrue(asyncio.iscoroutine(awaitable))
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self.assertEqual(spec.await_count, 1)
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self.assertEqual(spec.await_args, call(1, 2, c=3))
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self.assertEqual(spec.await_args_list, [call(1, 2, c=3)])
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spec.assert_awaited_once()
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spec.assert_awaited_once_with(1, 2, c=3)
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spec.assert_awaited_with(1, 2, c=3)
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spec.assert_awaited()
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with self.assertRaises(AssertionError):
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spec.assert_any_await(e=1)
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def test_patch_with_autospec(self):
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async def test_async():
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with patch(f"{__name__}.async_func_args", autospec=True) as mock_method:
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awaitable = mock_method(1, 2, c=3)
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self.assertIsInstance(mock_method.mock, AsyncMock)
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self.assertTrue(iscoroutinefunction(mock_method))
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self.assertTrue(asyncio.iscoroutine(awaitable))
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self.assertTrue(inspect.isawaitable(awaitable))
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# Verify the default values during mock setup
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self.assertEqual(mock_method.await_count, 0)
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self.assertEqual(mock_method.await_args_list, [])
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self.assertIsNone(mock_method.await_args)
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mock_method.assert_not_awaited()
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await awaitable
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self.assertEqual(mock_method.await_count, 1)
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self.assertEqual(mock_method.await_args, call(1, 2, c=3))
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self.assertEqual(mock_method.await_args_list, [call(1, 2, c=3)])
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mock_method.assert_awaited_once()
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mock_method.assert_awaited_once_with(1, 2, c=3)
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mock_method.assert_awaited_with(1, 2, c=3)
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mock_method.assert_awaited()
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mock_method.reset_mock()
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self.assertEqual(mock_method.await_count, 0)
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self.assertIsNone(mock_method.await_args)
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self.assertEqual(mock_method.await_args_list, [])
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run(test_async())
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class AsyncSpecTest(unittest.TestCase):
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def test_spec_normal_methods_on_class(self):
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def inner_test(mock_type):
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mock = mock_type(AsyncClass)
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self.assertIsInstance(mock.async_method, AsyncMock)
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self.assertIsInstance(mock.normal_method, MagicMock)
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for mock_type in [AsyncMock, MagicMock]:
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with self.subTest(f"test method types with {mock_type}"):
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inner_test(mock_type)
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def test_spec_normal_methods_on_class_with_mock(self):
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mock = Mock(AsyncClass)
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self.assertIsInstance(mock.async_method, AsyncMock)
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self.assertIsInstance(mock.normal_method, Mock)
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def test_spec_mock_type_kw(self):
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def inner_test(mock_type):
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async_mock = mock_type(spec=async_func)
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self.assertIsInstance(async_mock, mock_type)
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with assertNeverAwaited(self):
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self.assertTrue(inspect.isawaitable(async_mock()))
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sync_mock = mock_type(spec=normal_func)
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self.assertIsInstance(sync_mock, mock_type)
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for mock_type in [AsyncMock, MagicMock, Mock]:
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with self.subTest(f"test spec kwarg with {mock_type}"):
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inner_test(mock_type)
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def test_spec_mock_type_positional(self):
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def inner_test(mock_type):
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async_mock = mock_type(async_func)
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self.assertIsInstance(async_mock, mock_type)
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with assertNeverAwaited(self):
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self.assertTrue(inspect.isawaitable(async_mock()))
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sync_mock = mock_type(normal_func)
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self.assertIsInstance(sync_mock, mock_type)
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for mock_type in [AsyncMock, MagicMock, Mock]:
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with self.subTest(f"test spec positional with {mock_type}"):
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inner_test(mock_type)
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def test_spec_as_normal_kw_AsyncMock(self):
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mock = AsyncMock(spec=normal_func)
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self.assertIsInstance(mock, AsyncMock)
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m = mock()
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self.assertTrue(inspect.isawaitable(m))
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run(m)
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def test_spec_as_normal_positional_AsyncMock(self):
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mock = AsyncMock(normal_func)
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self.assertIsInstance(mock, AsyncMock)
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m = mock()
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self.assertTrue(inspect.isawaitable(m))
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run(m)
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def test_spec_async_mock(self):
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@patch.object(AsyncClass, 'async_method', spec=True)
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def test_async(mock_method):
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self.assertIsInstance(mock_method, AsyncMock)
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test_async()
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def test_spec_parent_not_async_attribute_is(self):
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@patch(async_foo_name, spec=True)
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def test_async(mock_method):
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self.assertIsInstance(mock_method, MagicMock)
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self.assertIsInstance(mock_method.async_method, AsyncMock)
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test_async()
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def test_target_async_spec_not(self):
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@patch.object(AsyncClass, 'async_method', spec=NormalClass.a)
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def test_async_attribute(mock_method):
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self.assertIsInstance(mock_method, MagicMock)
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self.assertFalse(inspect.iscoroutine(mock_method))
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self.assertFalse(inspect.isawaitable(mock_method))
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test_async_attribute()
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def test_target_not_async_spec_is(self):
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@patch.object(NormalClass, 'a', spec=async_func)
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def test_attribute_not_async_spec_is(mock_async_func):
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self.assertIsInstance(mock_async_func, AsyncMock)
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test_attribute_not_async_spec_is()
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def test_spec_async_attributes(self):
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@patch(normal_foo_name, spec=AsyncClass)
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def test_async_attributes_coroutines(MockNormalClass):
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self.assertIsInstance(MockNormalClass.async_method, AsyncMock)
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self.assertIsInstance(MockNormalClass, MagicMock)
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test_async_attributes_coroutines()
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|
|
|
|
|
|
|
class AsyncSpecSetTest(unittest.TestCase):
|
|
|
|
def test_is_AsyncMock_patch(self):
|
|
|
|
@patch.object(AsyncClass, 'async_method', spec_set=True)
|
|
|
|
def test_async(async_method):
|
|
|
|
self.assertIsInstance(async_method, AsyncMock)
|
|
|
|
test_async()
|
|
|
|
|
|
|
|
def test_is_async_AsyncMock(self):
|
|
|
|
mock = AsyncMock(spec_set=AsyncClass.async_method)
|
|
|
|
self.assertTrue(iscoroutinefunction(mock))
|
|
|
|
self.assertIsInstance(mock, AsyncMock)
|
|
|
|
|
|
|
|
def test_is_child_AsyncMock(self):
|
|
|
|
mock = MagicMock(spec_set=AsyncClass)
|
|
|
|
self.assertTrue(iscoroutinefunction(mock.async_method))
|
|
|
|
self.assertFalse(iscoroutinefunction(mock.normal_method))
|
|
|
|
self.assertIsInstance(mock.async_method, AsyncMock)
|
|
|
|
self.assertIsInstance(mock.normal_method, MagicMock)
|
|
|
|
self.assertIsInstance(mock, MagicMock)
|
|
|
|
|
|
|
|
def test_magicmock_lambda_spec(self):
|
|
|
|
mock_obj = MagicMock()
|
|
|
|
mock_obj.mock_func = MagicMock(spec=lambda x: x)
|
|
|
|
|
|
|
|
with patch.object(mock_obj, "mock_func") as cm:
|
|
|
|
self.assertIsInstance(cm, MagicMock)
|
|
|
|
|
|
|
|
|
|
|
|
class AsyncArguments(IsolatedAsyncioTestCase):
|
|
|
|
async def test_add_return_value(self):
|
|
|
|
async def addition(self, var): pass
|
|
|
|
|
|
|
|
mock = AsyncMock(addition, return_value=10)
|
|
|
|
output = await mock(5)
|
|
|
|
|
|
|
|
self.assertEqual(output, 10)
|
|
|
|
|
|
|
|
async def test_add_side_effect_exception(self):
|
|
|
|
async def addition(var): pass
|
|
|
|
mock = AsyncMock(addition, side_effect=Exception('err'))
|
|
|
|
with self.assertRaises(Exception):
|
|
|
|
await mock(5)
|
|
|
|
|
|
|
|
async def test_add_side_effect_coroutine(self):
|
|
|
|
async def addition(var):
|
|
|
|
return var + 1
|
|
|
|
mock = AsyncMock(side_effect=addition)
|
|
|
|
result = await mock(5)
|
|
|
|
self.assertEqual(result, 6)
|
|
|
|
|
|
|
|
async def test_add_side_effect_normal_function(self):
|
|
|
|
def addition(var):
|
|
|
|
return var + 1
|
|
|
|
mock = AsyncMock(side_effect=addition)
|
|
|
|
result = await mock(5)
|
|
|
|
self.assertEqual(result, 6)
|
|
|
|
|
|
|
|
async def test_add_side_effect_iterable(self):
|
|
|
|
vals = [1, 2, 3]
|
|
|
|
mock = AsyncMock(side_effect=vals)
|
|
|
|
for item in vals:
|
|
|
|
self.assertEqual(await mock(), item)
|
|
|
|
|
|
|
|
with self.assertRaises(StopAsyncIteration) as e:
|
|
|
|
await mock()
|
|
|
|
|
|
|
|
async def test_add_side_effect_exception_iterable(self):
|
|
|
|
class SampleException(Exception):
|
|
|
|
pass
|
|
|
|
|
|
|
|
vals = [1, SampleException("foo")]
|
|
|
|
mock = AsyncMock(side_effect=vals)
|
|
|
|
self.assertEqual(await mock(), 1)
|
|
|
|
|
|
|
|
with self.assertRaises(SampleException) as e:
|
|
|
|
await mock()
|
|
|
|
|
|
|
|
async def test_return_value_AsyncMock(self):
|
|
|
|
value = AsyncMock(return_value=10)
|
|
|
|
mock = AsyncMock(return_value=value)
|
|
|
|
result = await mock()
|
|
|
|
self.assertIs(result, value)
|
|
|
|
|
|
|
|
async def test_return_value_awaitable(self):
|
|
|
|
fut = asyncio.Future()
|
|
|
|
fut.set_result(None)
|
|
|
|
mock = AsyncMock(return_value=fut)
|
|
|
|
result = await mock()
|
|
|
|
self.assertIsInstance(result, asyncio.Future)
|
|
|
|
|
|
|
|
async def test_side_effect_awaitable_values(self):
|
|
|
|
fut = asyncio.Future()
|
|
|
|
fut.set_result(None)
|
|
|
|
|
|
|
|
mock = AsyncMock(side_effect=[fut])
|
|
|
|
result = await mock()
|
|
|
|
self.assertIsInstance(result, asyncio.Future)
|
|
|
|
|
|
|
|
with self.assertRaises(StopAsyncIteration):
|
|
|
|
await mock()
|
|
|
|
|
|
|
|
async def test_side_effect_is_AsyncMock(self):
|
|
|
|
effect = AsyncMock(return_value=10)
|
|
|
|
mock = AsyncMock(side_effect=effect)
|
|
|
|
|
|
|
|
result = await mock()
|
|
|
|
self.assertEqual(result, 10)
|
|
|
|
|
|
|
|
async def test_wraps_coroutine(self):
|
|
|
|
value = asyncio.Future()
|
|
|
|
|
|
|
|
ran = False
|
|
|
|
async def inner():
|
|
|
|
nonlocal ran
|
|
|
|
ran = True
|
|
|
|
return value
|
|
|
|
|
|
|
|
mock = AsyncMock(wraps=inner)
|
|
|
|
result = await mock()
|
|
|
|
self.assertEqual(result, value)
|
|
|
|
mock.assert_awaited()
|
|
|
|
self.assertTrue(ran)
|
|
|
|
|
|
|
|
async def test_wraps_normal_function(self):
|
|
|
|
value = 1
|
|
|
|
|
|
|
|
ran = False
|
|
|
|
def inner():
|
|
|
|
nonlocal ran
|
|
|
|
ran = True
|
|
|
|
return value
|
|
|
|
|
|
|
|
mock = AsyncMock(wraps=inner)
|
|
|
|
result = await mock()
|
|
|
|
self.assertEqual(result, value)
|
|
|
|
mock.assert_awaited()
|
|
|
|
self.assertTrue(ran)
|
|
|
|
|
|
|
|
async def test_await_args_list_order(self):
|
|
|
|
async_mock = AsyncMock()
|
|
|
|
mock2 = async_mock(2)
|
|
|
|
mock1 = async_mock(1)
|
|
|
|
await mock1
|
|
|
|
await mock2
|
|
|
|
async_mock.assert_has_awaits([call(1), call(2)])
|
|
|
|
self.assertEqual(async_mock.await_args_list, [call(1), call(2)])
|
|
|
|
self.assertEqual(async_mock.call_args_list, [call(2), call(1)])
|
|
|
|
|
|
|
|
|
|
|
|
class AsyncMagicMethods(unittest.TestCase):
|
|
|
|
def test_async_magic_methods_return_async_mocks(self):
|
|
|
|
m_mock = MagicMock()
|
|
|
|
self.assertIsInstance(m_mock.__aenter__, AsyncMock)
|
|
|
|
self.assertIsInstance(m_mock.__aexit__, AsyncMock)
|
|
|
|
self.assertIsInstance(m_mock.__anext__, AsyncMock)
|
|
|
|
# __aiter__ is actually a synchronous object
|
|
|
|
# so should return a MagicMock
|
|
|
|
self.assertIsInstance(m_mock.__aiter__, MagicMock)
|
|
|
|
|
|
|
|
def test_sync_magic_methods_return_magic_mocks(self):
|
|
|
|
a_mock = AsyncMock()
|
|
|
|
self.assertIsInstance(a_mock.__enter__, MagicMock)
|
|
|
|
self.assertIsInstance(a_mock.__exit__, MagicMock)
|
|
|
|
self.assertIsInstance(a_mock.__next__, MagicMock)
|
|
|
|
self.assertIsInstance(a_mock.__len__, MagicMock)
|
|
|
|
|
|
|
|
def test_magicmock_has_async_magic_methods(self):
|
|
|
|
m_mock = MagicMock()
|
|
|
|
self.assertTrue(hasattr(m_mock, "__aenter__"))
|
|
|
|
self.assertTrue(hasattr(m_mock, "__aexit__"))
|
|
|
|
self.assertTrue(hasattr(m_mock, "__anext__"))
|
|
|
|
|
|
|
|
def test_asyncmock_has_sync_magic_methods(self):
|
|
|
|
a_mock = AsyncMock()
|
|
|
|
self.assertTrue(hasattr(a_mock, "__enter__"))
|
|
|
|
self.assertTrue(hasattr(a_mock, "__exit__"))
|
|
|
|
self.assertTrue(hasattr(a_mock, "__next__"))
|
|
|
|
self.assertTrue(hasattr(a_mock, "__len__"))
|
|
|
|
|
|
|
|
def test_magic_methods_are_async_functions(self):
|
|
|
|
m_mock = MagicMock()
|
|
|
|
self.assertIsInstance(m_mock.__aenter__, AsyncMock)
|
|
|
|
self.assertIsInstance(m_mock.__aexit__, AsyncMock)
|
|
|
|
# AsyncMocks are also coroutine functions
|
|
|
|
self.assertTrue(iscoroutinefunction(m_mock.__aenter__))
|
|
|
|
self.assertTrue(iscoroutinefunction(m_mock.__aexit__))
|
|
|
|
|
|
|
|
class AsyncContextManagerTest(unittest.TestCase):
|
|
|
|
|
|
|
|
class WithAsyncContextManager:
|
|
|
|
async def __aenter__(self, *args, **kwargs): pass
|
|
|
|
|
|
|
|
async def __aexit__(self, *args, **kwargs): pass
|
|
|
|
|
|
|
|
class WithSyncContextManager:
|
|
|
|
def __enter__(self, *args, **kwargs): pass
|
|
|
|
|
|
|
|
def __exit__(self, *args, **kwargs): pass
|
|
|
|
|
|
|
|
class ProductionCode:
|
|
|
|
# Example real-world(ish) code
|
|
|
|
def __init__(self):
|
|
|
|
self.session = None
|
|
|
|
|
|
|
|
async def main(self):
|
|
|
|
async with self.session.post('https://python.org') as response:
|
|
|
|
val = await response.json()
|
|
|
|
return val
|
|
|
|
|
|
|
|
def test_set_return_value_of_aenter(self):
|
|
|
|
def inner_test(mock_type):
|
|
|
|
pc = self.ProductionCode()
|
|
|
|
pc.session = MagicMock(name='sessionmock')
|
|
|
|
cm = mock_type(name='magic_cm')
|
|
|
|
response = AsyncMock(name='response')
|
|
|
|
response.json = AsyncMock(return_value={'json': 123})
|
|
|
|
cm.__aenter__.return_value = response
|
|
|
|
pc.session.post.return_value = cm
|
|
|
|
result = run(pc.main())
|
|
|
|
self.assertEqual(result, {'json': 123})
|
|
|
|
|
|
|
|
for mock_type in [AsyncMock, MagicMock]:
|
|
|
|
with self.subTest(f"test set return value of aenter with {mock_type}"):
|
|
|
|
inner_test(mock_type)
|
|
|
|
|
|
|
|
def test_mock_supports_async_context_manager(self):
|
|
|
|
def inner_test(mock_type):
|
|
|
|
called = False
|
|
|
|
cm = self.WithAsyncContextManager()
|
|
|
|
cm_mock = mock_type(cm)
|
|
|
|
|
|
|
|
async def use_context_manager():
|
|
|
|
nonlocal called
|
|
|
|
async with cm_mock as result:
|
|
|
|
called = True
|
|
|
|
return result
|
|
|
|
|
|
|
|
cm_result = run(use_context_manager())
|
|
|
|
self.assertTrue(called)
|
|
|
|
self.assertTrue(cm_mock.__aenter__.called)
|
|
|
|
self.assertTrue(cm_mock.__aexit__.called)
|
|
|
|
cm_mock.__aenter__.assert_awaited()
|
|
|
|
cm_mock.__aexit__.assert_awaited()
|
|
|
|
# We mock __aenter__ so it does not return self
|
|
|
|
self.assertIsNot(cm_mock, cm_result)
|
|
|
|
|
|
|
|
for mock_type in [AsyncMock, MagicMock]:
|
|
|
|
with self.subTest(f"test context manager magics with {mock_type}"):
|
|
|
|
inner_test(mock_type)
|
|
|
|
|
|
|
|
|
|
|
|
def test_mock_customize_async_context_manager(self):
|
|
|
|
instance = self.WithAsyncContextManager()
|
|
|
|
mock_instance = MagicMock(instance)
|
|
|
|
|
|
|
|
expected_result = object()
|
|
|
|
mock_instance.__aenter__.return_value = expected_result
|
|
|
|
|
|
|
|
async def use_context_manager():
|
|
|
|
async with mock_instance as result:
|
|
|
|
return result
|
|
|
|
|
|
|
|
self.assertIs(run(use_context_manager()), expected_result)
|
|
|
|
|
|
|
|
def test_mock_customize_async_context_manager_with_coroutine(self):
|
|
|
|
enter_called = False
|
|
|
|
exit_called = False
|
|
|
|
|
|
|
|
async def enter_coroutine(*args):
|
|
|
|
nonlocal enter_called
|
|
|
|
enter_called = True
|
|
|
|
|
|
|
|
async def exit_coroutine(*args):
|
|
|
|
nonlocal exit_called
|
|
|
|
exit_called = True
|
|
|
|
|
|
|
|
instance = self.WithAsyncContextManager()
|
|
|
|
mock_instance = MagicMock(instance)
|
|
|
|
|
|
|
|
mock_instance.__aenter__ = enter_coroutine
|
|
|
|
mock_instance.__aexit__ = exit_coroutine
|
|
|
|
|
|
|
|
async def use_context_manager():
|
|
|
|
async with mock_instance:
|
|
|
|
pass
|
|
|
|
|
|
|
|
run(use_context_manager())
|
|
|
|
self.assertTrue(enter_called)
|
|
|
|
self.assertTrue(exit_called)
|
|
|
|
|
|
|
|
def test_context_manager_raise_exception_by_default(self):
|
|
|
|
async def raise_in(context_manager):
|
|
|
|
async with context_manager:
|
|
|
|
raise TypeError()
|
|
|
|
|
|
|
|
instance = self.WithAsyncContextManager()
|
|
|
|
mock_instance = MagicMock(instance)
|
|
|
|
with self.assertRaises(TypeError):
|
|
|
|
run(raise_in(mock_instance))
|
|
|
|
|
|
|
|
|
|
|
|
class AsyncIteratorTest(unittest.TestCase):
|
|
|
|
class WithAsyncIterator(object):
|
|
|
|
def __init__(self):
|
|
|
|
self.items = ["foo", "NormalFoo", "baz"]
|
|
|
|
|
|
|
|
def __aiter__(self): pass
|
|
|
|
|
|
|
|
async def __anext__(self): pass
|
|
|
|
|
|
|
|
def test_aiter_set_return_value(self):
|
|
|
|
mock_iter = AsyncMock(name="tester")
|
|
|
|
mock_iter.__aiter__.return_value = [1, 2, 3]
|
|
|
|
async def main():
|
|
|
|
return [i async for i in mock_iter]
|
|
|
|
result = run(main())
|
|
|
|
self.assertEqual(result, [1, 2, 3])
|
|
|
|
|
|
|
|
def test_mock_aiter_and_anext_asyncmock(self):
|
|
|
|
def inner_test(mock_type):
|
|
|
|
instance = self.WithAsyncIterator()
|
|
|
|
mock_instance = mock_type(instance)
|
|
|
|
# Check that the mock and the real thing bahave the same
|
|
|
|
# __aiter__ is not actually async, so not a coroutinefunction
|
|
|
|
self.assertFalse(iscoroutinefunction(instance.__aiter__))
|
|
|
|
self.assertFalse(iscoroutinefunction(mock_instance.__aiter__))
|
|
|
|
# __anext__ is async
|
|
|
|
self.assertTrue(iscoroutinefunction(instance.__anext__))
|
|
|
|
self.assertTrue(iscoroutinefunction(mock_instance.__anext__))
|
|
|
|
|
|
|
|
for mock_type in [AsyncMock, MagicMock]:
|
|
|
|
with self.subTest(f"test aiter and anext corourtine with {mock_type}"):
|
|
|
|
inner_test(mock_type)
|
|
|
|
|
|
|
|
|
|
|
|
def test_mock_async_for(self):
|
|
|
|
async def iterate(iterator):
|
|
|
|
accumulator = []
|
|
|
|
async for item in iterator:
|
|
|
|
accumulator.append(item)
|
|
|
|
|
|
|
|
return accumulator
|
|
|
|
|
|
|
|
expected = ["FOO", "BAR", "BAZ"]
|
|
|
|
def test_default(mock_type):
|
|
|
|
mock_instance = mock_type(self.WithAsyncIterator())
|
|
|
|
self.assertEqual(run(iterate(mock_instance)), [])
|
|
|
|
|
|
|
|
|
|
|
|
def test_set_return_value(mock_type):
|
|
|
|
mock_instance = mock_type(self.WithAsyncIterator())
|
|
|
|
mock_instance.__aiter__.return_value = expected[:]
|
|
|
|
self.assertEqual(run(iterate(mock_instance)), expected)
|
|
|
|
|
|
|
|
def test_set_return_value_iter(mock_type):
|
|
|
|
mock_instance = mock_type(self.WithAsyncIterator())
|
|
|
|
mock_instance.__aiter__.return_value = iter(expected[:])
|
|
|
|
self.assertEqual(run(iterate(mock_instance)), expected)
|
|
|
|
|
|
|
|
for mock_type in [AsyncMock, MagicMock]:
|
|
|
|
with self.subTest(f"default value with {mock_type}"):
|
|
|
|
test_default(mock_type)
|
|
|
|
|
|
|
|
with self.subTest(f"set return_value with {mock_type}"):
|
|
|
|
test_set_return_value(mock_type)
|
|
|
|
|
|
|
|
with self.subTest(f"set return_value iterator with {mock_type}"):
|
|
|
|
test_set_return_value_iter(mock_type)
|
|
|
|
|
|
|
|
|
|
|
|
class AsyncMockAssert(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
|
|
self.mock = AsyncMock()
|
|
|
|
|
|
|
|
async def _runnable_test(self, *args, **kwargs):
|
|
|
|
await self.mock(*args, **kwargs)
|
|
|
|
|
|
|
|
async def _await_coroutine(self, coroutine):
|
|
|
|
return await coroutine
|
|
|
|
|
|
|
|
def test_assert_called_but_not_awaited(self):
|
|
|
|
mock = AsyncMock(AsyncClass)
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
mock.async_method()
|
|
|
|
self.assertTrue(iscoroutinefunction(mock.async_method))
|
|
|
|
mock.async_method.assert_called()
|
|
|
|
mock.async_method.assert_called_once()
|
|
|
|
mock.async_method.assert_called_once_with()
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
mock.assert_awaited()
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
mock.async_method.assert_awaited()
|
|
|
|
|
|
|
|
def test_assert_called_then_awaited(self):
|
|
|
|
mock = AsyncMock(AsyncClass)
|
|
|
|
mock_coroutine = mock.async_method()
|
|
|
|
mock.async_method.assert_called()
|
|
|
|
mock.async_method.assert_called_once()
|
|
|
|
mock.async_method.assert_called_once_with()
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
mock.async_method.assert_awaited()
|
|
|
|
|
|
|
|
run(self._await_coroutine(mock_coroutine))
|
|
|
|
# Assert we haven't re-called the function
|
|
|
|
mock.async_method.assert_called_once()
|
|
|
|
mock.async_method.assert_awaited()
|
|
|
|
mock.async_method.assert_awaited_once()
|
|
|
|
mock.async_method.assert_awaited_once_with()
|
|
|
|
|
|
|
|
def test_assert_called_and_awaited_at_same_time(self):
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_awaited()
|
|
|
|
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_called()
|
|
|
|
|
|
|
|
run(self._runnable_test())
|
|
|
|
self.mock.assert_called_once()
|
|
|
|
self.mock.assert_awaited_once()
|
|
|
|
|
|
|
|
def test_assert_called_twice_and_awaited_once(self):
|
|
|
|
mock = AsyncMock(AsyncClass)
|
|
|
|
coroutine = mock.async_method()
|
|
|
|
# The first call will be awaited so no warning there
|
|
|
|
# But this call will never get awaited, so it will warn here
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
mock.async_method()
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
mock.async_method.assert_awaited()
|
|
|
|
mock.async_method.assert_called()
|
|
|
|
run(self._await_coroutine(coroutine))
|
|
|
|
mock.async_method.assert_awaited()
|
|
|
|
mock.async_method.assert_awaited_once()
|
|
|
|
|
|
|
|
def test_assert_called_once_and_awaited_twice(self):
|
|
|
|
mock = AsyncMock(AsyncClass)
|
|
|
|
coroutine = mock.async_method()
|
|
|
|
mock.async_method.assert_called_once()
|
|
|
|
run(self._await_coroutine(coroutine))
|
|
|
|
with self.assertRaises(RuntimeError):
|
|
|
|
# Cannot reuse already awaited coroutine
|
|
|
|
run(self._await_coroutine(coroutine))
|
|
|
|
mock.async_method.assert_awaited()
|
|
|
|
|
|
|
|
def test_assert_awaited_but_not_called(self):
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_awaited()
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_called()
|
|
|
|
with self.assertRaises(TypeError):
|
|
|
|
# You cannot await an AsyncMock, it must be a coroutine
|
|
|
|
run(self._await_coroutine(self.mock))
|
|
|
|
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_awaited()
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_called()
|
|
|
|
|
|
|
|
def test_assert_has_calls_not_awaits(self):
|
|
|
|
kalls = [call('foo')]
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
self.mock('foo')
|
|
|
|
self.mock.assert_has_calls(kalls)
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_has_awaits(kalls)
|
|
|
|
|
|
|
|
def test_assert_has_mock_calls_on_async_mock_no_spec(self):
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
self.mock()
|
|
|
|
kalls_empty = [('', (), {})]
|
|
|
|
self.assertEqual(self.mock.mock_calls, kalls_empty)
|
|
|
|
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
self.mock('foo')
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
self.mock('baz')
|
|
|
|
mock_kalls = ([call(), call('foo'), call('baz')])
|
|
|
|
self.assertEqual(self.mock.mock_calls, mock_kalls)
|
|
|
|
|
|
|
|
def test_assert_has_mock_calls_on_async_mock_with_spec(self):
|
|
|
|
a_class_mock = AsyncMock(AsyncClass)
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
a_class_mock.async_method()
|
|
|
|
kalls_empty = [('', (), {})]
|
|
|
|
self.assertEqual(a_class_mock.async_method.mock_calls, kalls_empty)
|
|
|
|
self.assertEqual(a_class_mock.mock_calls, [call.async_method()])
|
|
|
|
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
a_class_mock.async_method(1, 2, 3, a=4, b=5)
|
|
|
|
method_kalls = [call(), call(1, 2, 3, a=4, b=5)]
|
|
|
|
mock_kalls = [call.async_method(), call.async_method(1, 2, 3, a=4, b=5)]
|
|
|
|
self.assertEqual(a_class_mock.async_method.mock_calls, method_kalls)
|
|
|
|
self.assertEqual(a_class_mock.mock_calls, mock_kalls)
|
|
|
|
|
|
|
|
def test_async_method_calls_recorded(self):
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
self.mock.something(3, fish=None)
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
self.mock.something_else.something(6, cake=sentinel.Cake)
|
|
|
|
|
|
|
|
self.assertEqual(self.mock.method_calls, [
|
|
|
|
("something", (3,), {'fish': None}),
|
|
|
|
("something_else.something", (6,), {'cake': sentinel.Cake})
|
|
|
|
],
|
|
|
|
"method calls not recorded correctly")
|
|
|
|
self.assertEqual(self.mock.something_else.method_calls,
|
|
|
|
[("something", (6,), {'cake': sentinel.Cake})],
|
|
|
|
"method calls not recorded correctly")
|
|
|
|
|
|
|
|
def test_async_arg_lists(self):
|
|
|
|
def assert_attrs(mock):
|
|
|
|
names = ('call_args_list', 'method_calls', 'mock_calls')
|
|
|
|
for name in names:
|
|
|
|
attr = getattr(mock, name)
|
|
|
|
self.assertIsInstance(attr, _CallList)
|
|
|
|
self.assertIsInstance(attr, list)
|
|
|
|
self.assertEqual(attr, [])
|
|
|
|
|
|
|
|
assert_attrs(self.mock)
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
self.mock()
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
self.mock(1, 2)
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
self.mock(a=3)
|
|
|
|
|
|
|
|
self.mock.reset_mock()
|
|
|
|
assert_attrs(self.mock)
|
|
|
|
|
|
|
|
a_mock = AsyncMock(AsyncClass)
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
a_mock.async_method()
|
|
|
|
with assertNeverAwaited(self):
|
|
|
|
a_mock.async_method(1, a=3)
|
|
|
|
|
|
|
|
a_mock.reset_mock()
|
|
|
|
assert_attrs(a_mock)
|
|
|
|
|
|
|
|
def test_assert_awaited(self):
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_awaited()
|
|
|
|
|
|
|
|
run(self._runnable_test())
|
|
|
|
self.mock.assert_awaited()
|
|
|
|
|
|
|
|
def test_assert_awaited_once(self):
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_awaited_once()
|
|
|
|
|
|
|
|
run(self._runnable_test())
|
|
|
|
self.mock.assert_awaited_once()
|
|
|
|
|
|
|
|
run(self._runnable_test())
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_awaited_once()
|
|
|
|
|
|
|
|
def test_assert_awaited_with(self):
|
|
|
|
msg = 'Not awaited'
|
|
|
|
with self.assertRaisesRegex(AssertionError, msg):
|
|
|
|
self.mock.assert_awaited_with('foo')
|
|
|
|
|
|
|
|
run(self._runnable_test())
|
|
|
|
msg = 'expected await not found'
|
|
|
|
with self.assertRaisesRegex(AssertionError, msg):
|
|
|
|
self.mock.assert_awaited_with('foo')
|
|
|
|
|
|
|
|
run(self._runnable_test('foo'))
|
|
|
|
self.mock.assert_awaited_with('foo')
|
|
|
|
|
|
|
|
run(self._runnable_test('SomethingElse'))
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_awaited_with('foo')
|
|
|
|
|
|
|
|
def test_assert_awaited_once_with(self):
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_awaited_once_with('foo')
|
|
|
|
|
|
|
|
run(self._runnable_test('foo'))
|
|
|
|
self.mock.assert_awaited_once_with('foo')
|
|
|
|
|
|
|
|
run(self._runnable_test('foo'))
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_awaited_once_with('foo')
|
|
|
|
|
|
|
|
def test_assert_any_wait(self):
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_any_await('foo')
|
|
|
|
|
|
|
|
run(self._runnable_test('baz'))
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_any_await('foo')
|
|
|
|
|
|
|
|
run(self._runnable_test('foo'))
|
|
|
|
self.mock.assert_any_await('foo')
|
|
|
|
|
|
|
|
run(self._runnable_test('SomethingElse'))
|
|
|
|
self.mock.assert_any_await('foo')
|
|
|
|
|
|
|
|
def test_assert_has_awaits_no_order(self):
|
|
|
|
calls = [call('foo'), call('baz')]
|
|
|
|
|
|
|
|
with self.assertRaises(AssertionError) as cm:
|
|
|
|
self.mock.assert_has_awaits(calls)
|
|
|
|
self.assertEqual(len(cm.exception.args), 1)
|
|
|
|
|
|
|
|
run(self._runnable_test('foo'))
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_has_awaits(calls)
|
|
|
|
|
|
|
|
run(self._runnable_test('foo'))
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_has_awaits(calls)
|
|
|
|
|
|
|
|
run(self._runnable_test('baz'))
|
|
|
|
self.mock.assert_has_awaits(calls)
|
|
|
|
|
|
|
|
run(self._runnable_test('SomethingElse'))
|
|
|
|
self.mock.assert_has_awaits(calls)
|
|
|
|
|
|
|
|
def test_awaits_asserts_with_any(self):
|
|
|
|
class Foo:
|
|
|
|
def __eq__(self, other): pass
|
|
|
|
|
|
|
|
run(self._runnable_test(Foo(), 1))
|
|
|
|
|
|
|
|
self.mock.assert_has_awaits([call(ANY, 1)])
|
|
|
|
self.mock.assert_awaited_with(ANY, 1)
|
|
|
|
self.mock.assert_any_await(ANY, 1)
|
|
|
|
|
|
|
|
def test_awaits_asserts_with_spec_and_any(self):
|
|
|
|
class Foo:
|
|
|
|
def __eq__(self, other): pass
|
|
|
|
|
|
|
|
mock_with_spec = AsyncMock(spec=Foo)
|
|
|
|
|
|
|
|
async def _custom_mock_runnable_test(*args):
|
|
|
|
await mock_with_spec(*args)
|
|
|
|
|
|
|
|
run(_custom_mock_runnable_test(Foo(), 1))
|
|
|
|
mock_with_spec.assert_has_awaits([call(ANY, 1)])
|
|
|
|
mock_with_spec.assert_awaited_with(ANY, 1)
|
|
|
|
mock_with_spec.assert_any_await(ANY, 1)
|
|
|
|
|
|
|
|
def test_assert_has_awaits_ordered(self):
|
|
|
|
calls = [call('foo'), call('baz')]
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_has_awaits(calls, any_order=True)
|
|
|
|
|
|
|
|
run(self._runnable_test('baz'))
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_has_awaits(calls, any_order=True)
|
|
|
|
|
|
|
|
run(self._runnable_test('bamf'))
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_has_awaits(calls, any_order=True)
|
|
|
|
|
|
|
|
run(self._runnable_test('foo'))
|
|
|
|
self.mock.assert_has_awaits(calls, any_order=True)
|
|
|
|
|
|
|
|
run(self._runnable_test('qux'))
|
|
|
|
self.mock.assert_has_awaits(calls, any_order=True)
|
|
|
|
|
|
|
|
def test_assert_not_awaited(self):
|
|
|
|
self.mock.assert_not_awaited()
|
|
|
|
|
|
|
|
run(self._runnable_test())
|
|
|
|
with self.assertRaises(AssertionError):
|
|
|
|
self.mock.assert_not_awaited()
|
|
|
|
|
|
|
|
def test_assert_has_awaits_not_matching_spec_error(self):
|
|
|
|
async def f(x=None): pass
|
|
|
|
|
|
|
|
self.mock = AsyncMock(spec=f)
|
|
|
|
run(self._runnable_test(1))
|
|
|
|
|
|
|
|
with self.assertRaisesRegex(
|
|
|
|
AssertionError,
|
|
|
|
'^{}$'.format(
|
|
|
|
re.escape('Awaits not found.\n'
|
|
|
|
'Expected: [call()]\n'
|
|
|
|
'Actual: [call(1)]'))) as cm:
|
|
|
|
self.mock.assert_has_awaits([call()])
|
|
|
|
self.assertIsNone(cm.exception.__cause__)
|
|
|
|
|
|
|
|
with self.assertRaisesRegex(
|
|
|
|
AssertionError,
|
|
|
|
'^{}$'.format(
|
|
|
|
re.escape(
|
|
|
|
'Error processing expected awaits.\n'
|
|
|
|
"Errors: [None, TypeError('too many positional "
|
|
|
|
"arguments')]\n"
|
|
|
|
'Expected: [call(), call(1, 2)]\n'
|
|
|
|
'Actual: [call(1)]'))) as cm:
|
|
|
|
self.mock.assert_has_awaits([call(), call(1, 2)])
|
|
|
|
self.assertIsInstance(cm.exception.__cause__, TypeError)
|