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Add circular dependencies breaker tests

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This commit is contained in:
Roman Mogylatov 2021-07-20 17:42:55 -04:00
parent 23909d55d6
commit f1073958d4
2 changed files with 61 additions and 1 deletions
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30
tests/unit/containers/test_dynamic_async_resources_py36.py
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@ -79,3 +79,33 @@ class AsyncResourcesTest(AsyncTestCase):
self._run(container.shutdown_resources())
self.assertEqual(initialized_resources, ['r1', 'r2', 'r3', 'r1', 'r2', 'r3'])
self.assertEqual(shutdown_resources, ['r1', 'r2', 'r3', 'r1', 'r2', 'r3'])
def test_shutdown_circular_dependencies_breaker(self):
async def _resource(name, **_):
yield name
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_resource,
name='r1',
)
resource2 = providers.Resource(
_resource,
name='r2',
r1=resource1,
)
resource3 = providers.Resource(
_resource,
name='r3',
r2=resource2,
)
container = Container()
self._run(container.init_resources())
# Create circular dependency after initialization (r3 -> r2 -> r1 -> r3 -> ...)
container.resource1.add_kwargs(r3=container.resource3)
with self.assertRaises(RuntimeError) as context:
self._run(container.shutdown_resources())
self.assertEqual(str(context.exception), 'Unable to resolve resources shutdown order')

32
tests/unit/containers/test_dynamic_py2_py3.py
View File

@ -192,7 +192,7 @@ class DeclarativeContainerInstanceTests(unittest.TestCase):
self.assertEqual(container.overridden, tuple())
self.assertEqual(container.p11.overridden, tuple())
def test_init_and_shutdown_ordering(self):
def test_init_and_shutdown_resources_ordering(self):
"""Test init and shutdown resources.
Methods .init_resources() and .shutdown_resources() should respect resources dependencies.
@ -243,6 +243,36 @@ class DeclarativeContainerInstanceTests(unittest.TestCase):
self.assertEqual(initialized_resources, ['r1', 'r2', 'r3', 'r1', 'r2', 'r3'])
self.assertEqual(shutdown_resources, ['r1', 'r2', 'r3', 'r1', 'r2', 'r3'])
def test_shutdown_resources_circular_dependencies_breaker(self):
def _resource(name, **_):
yield name
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_resource,
name='r1',
)
resource2 = providers.Resource(
_resource,
name='r2',
r1=resource1,
)
resource3 = providers.Resource(
_resource,
name='r3',
r2=resource2,
)
container = Container()
container.init_resources()
# Create circular dependency after initialization (r3 -> r2 -> r1 -> r3 -> ...)
container.resource1.add_kwargs(r3=container.resource3)
with self.assertRaises(RuntimeError) as context:
container.shutdown_resources()
self.assertEqual(str(context.exception), 'Unable to resolve resources shutdown order')
def test_init_shutdown_nested_resources(self):
def _init1():
_init1.init_counter += 1