mirror of
https://github.com/ets-labs/python-dependency-injector.git
synced 2024-11-29 21:14:00 +03:00
840 lines
25 KiB
Python
840 lines
25 KiB
Python
import asyncio
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import random
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import unittest
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from dependency_injector import containers, providers, errors
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# Runtime import to get asyncutils module
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import os
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_TOP_DIR = os.path.abspath(
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os.path.sep.join((
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os.path.dirname(__file__),
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'../',
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)),
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)
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import sys
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sys.path.append(_TOP_DIR)
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from asyncutils import AsyncTestCase
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RESOURCE1 = object()
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RESOURCE2 = object()
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async def init_resource(resource):
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await asyncio.sleep(random.randint(1, 10) / 1000)
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yield resource
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await asyncio.sleep(random.randint(1, 10) / 1000)
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class Client:
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def __init__(self, resource1: object, resource2: object) -> None:
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self.resource1 = resource1
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self.resource2 = resource2
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class Service:
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def __init__(self, client: Client) -> None:
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self.client = client
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class Container(containers.DeclarativeContainer):
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resource1 = providers.Resource(init_resource, providers.Object(RESOURCE1))
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resource2 = providers.Resource(init_resource, providers.Object(RESOURCE2))
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client = providers.Factory(
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Client,
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resource1=resource1,
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resource2=resource2,
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)
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service = providers.Factory(
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Service,
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client=client,
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)
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class FactoryTests(AsyncTestCase):
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def test_args_injection(self):
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class ContainerWithArgs(containers.DeclarativeContainer):
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resource1 = providers.Resource(init_resource, providers.Object(RESOURCE1))
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resource2 = providers.Resource(init_resource, providers.Object(RESOURCE2))
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client = providers.Factory(
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Client,
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resource1,
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resource2,
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)
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service = providers.Factory(
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Service,
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client,
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)
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container = ContainerWithArgs()
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client1 = self._run(container.client())
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client2 = self._run(container.client())
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self.assertIsInstance(client1, Client)
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self.assertIs(client1.resource1, RESOURCE1)
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self.assertIs(client1.resource2, RESOURCE2)
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self.assertIsInstance(client2, Client)
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self.assertIs(client2.resource1, RESOURCE1)
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self.assertIs(client2.resource2, RESOURCE2)
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service1 = self._run(container.service())
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service2 = self._run(container.service())
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self.assertIsInstance(service1, Service)
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self.assertIsInstance(service1.client, Client)
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self.assertIs(service1.client.resource1, RESOURCE1)
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self.assertIs(service1.client.resource2, RESOURCE2)
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self.assertIsInstance(service2, Service)
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self.assertIsInstance(service2.client, Client)
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self.assertIs(service2.client.resource1, RESOURCE1)
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self.assertIs(service2.client.resource2, RESOURCE2)
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self.assertIsNot(service1.client, service2.client)
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def test_kwargs_injection(self):
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container = Container()
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client1 = self._run(container.client())
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client2 = self._run(container.client())
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self.assertIsInstance(client1, Client)
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self.assertIs(client1.resource1, RESOURCE1)
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self.assertIs(client1.resource2, RESOURCE2)
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self.assertIsInstance(client2, Client)
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self.assertIs(client2.resource1, RESOURCE1)
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self.assertIs(client2.resource2, RESOURCE2)
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service1 = self._run(container.service())
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service2 = self._run(container.service())
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self.assertIsInstance(service1, Service)
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self.assertIsInstance(service1.client, Client)
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self.assertIs(service1.client.resource1, RESOURCE1)
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self.assertIs(service1.client.resource2, RESOURCE2)
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self.assertIsInstance(service2, Service)
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self.assertIsInstance(service2.client, Client)
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self.assertIs(service2.client.resource1, RESOURCE1)
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self.assertIs(service2.client.resource2, RESOURCE2)
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self.assertIsNot(service1.client, service2.client)
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def test_context_kwargs_injection(self):
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resource2_extra = object()
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container = Container()
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client1 = self._run(container.client(resource2=resource2_extra))
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client2 = self._run(container.client(resource2=resource2_extra))
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self.assertIsInstance(client1, Client)
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self.assertIs(client1.resource1, RESOURCE1)
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self.assertIs(client1.resource2, resource2_extra)
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self.assertIsInstance(client2, Client)
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self.assertIs(client2.resource1, RESOURCE1)
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self.assertIs(client2.resource2, resource2_extra)
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def test_args_kwargs_injection(self):
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class ContainerWithArgsAndKwArgs(containers.DeclarativeContainer):
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resource1 = providers.Resource(init_resource, providers.Object(RESOURCE1))
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resource2 = providers.Resource(init_resource, providers.Object(RESOURCE2))
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client = providers.Factory(
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Client,
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resource1,
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resource2=resource2,
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)
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service = providers.Factory(
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Service,
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client=client,
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)
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container = ContainerWithArgsAndKwArgs()
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client1 = self._run(container.client())
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client2 = self._run(container.client())
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self.assertIsInstance(client1, Client)
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self.assertIs(client1.resource1, RESOURCE1)
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self.assertIs(client1.resource2, RESOURCE2)
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self.assertIsInstance(client2, Client)
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self.assertIs(client2.resource1, RESOURCE1)
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self.assertIs(client2.resource2, RESOURCE2)
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service1 = self._run(container.service())
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service2 = self._run(container.service())
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self.assertIsInstance(service1, Service)
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self.assertIsInstance(service1.client, Client)
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self.assertIs(service1.client.resource1, RESOURCE1)
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self.assertIs(service1.client.resource2, RESOURCE2)
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self.assertIsInstance(service2, Service)
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self.assertIsInstance(service2.client, Client)
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self.assertIs(service2.client.resource1, RESOURCE1)
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self.assertIs(service2.client.resource2, RESOURCE2)
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self.assertIsNot(service1.client, service2.client)
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def test_attributes_injection(self):
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class ContainerWithAttributes(containers.DeclarativeContainer):
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resource1 = providers.Resource(init_resource, providers.Object(RESOURCE1))
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resource2 = providers.Resource(init_resource, providers.Object(RESOURCE2))
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client = providers.Factory(
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Client,
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resource1,
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resource2=None,
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)
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client.add_attributes(resource2=resource2)
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service = providers.Factory(
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Service,
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client=None,
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)
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service.add_attributes(client=client)
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container = ContainerWithAttributes()
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client1 = self._run(container.client())
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client2 = self._run(container.client())
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self.assertIsInstance(client1, Client)
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self.assertIs(client1.resource1, RESOURCE1)
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self.assertIs(client1.resource2, RESOURCE2)
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self.assertIsInstance(client2, Client)
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self.assertIs(client2.resource1, RESOURCE1)
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self.assertIs(client2.resource2, RESOURCE2)
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service1 = self._run(container.service())
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service2 = self._run(container.service())
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self.assertIsInstance(service1, Service)
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self.assertIsInstance(service1.client, Client)
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self.assertIs(service1.client.resource1, RESOURCE1)
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self.assertIs(service1.client.resource2, RESOURCE2)
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self.assertIsInstance(service2, Service)
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self.assertIsInstance(service2.client, Client)
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self.assertIs(service2.client.resource1, RESOURCE1)
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self.assertIs(service2.client.resource2, RESOURCE2)
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self.assertIsNot(service1.client, service2.client)
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class FactoryAggregateTests(AsyncTestCase):
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def test_async_mode(self):
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object1 = object()
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object2 = object()
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async def _get_object1():
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return object1
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def _get_object2():
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return object2
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provider = providers.FactoryAggregate(
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object1=providers.Factory(_get_object1),
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object2=providers.Factory(_get_object2),
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)
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self.assertTrue(provider.is_async_mode_undefined())
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created_object1 = self._run(provider('object1'))
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self.assertIs(created_object1, object1)
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self.assertTrue(provider.is_async_mode_enabled())
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created_object2 = self._run(provider('object2'))
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self.assertIs(created_object2, object2)
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class SingletonTests(AsyncTestCase):
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def test_injections(self):
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class ContainerWithSingletons(containers.DeclarativeContainer):
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resource1 = providers.Resource(init_resource, providers.Object(RESOURCE1))
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resource2 = providers.Resource(init_resource, providers.Object(RESOURCE2))
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client = providers.Singleton(
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Client,
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resource1=resource1,
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resource2=resource2,
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)
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service = providers.Singleton(
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Service,
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client=client,
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)
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container = ContainerWithSingletons()
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client1 = self._run(container.client())
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client2 = self._run(container.client())
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self.assertIsInstance(client1, Client)
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self.assertIs(client1.resource1, RESOURCE1)
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self.assertIs(client1.resource2, RESOURCE2)
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self.assertIsInstance(client2, Client)
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self.assertIs(client2.resource1, RESOURCE1)
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self.assertIs(client2.resource2, RESOURCE2)
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service1 = self._run(container.service())
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service2 = self._run(container.service())
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self.assertIsInstance(service1, Service)
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self.assertIsInstance(service1.client, Client)
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self.assertIs(service1.client.resource1, RESOURCE1)
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self.assertIs(service1.client.resource2, RESOURCE2)
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self.assertIsInstance(service2, Service)
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self.assertIsInstance(service2.client, Client)
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self.assertIs(service2.client.resource1, RESOURCE1)
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self.assertIs(service2.client.resource2, RESOURCE2)
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self.assertIs(service1, service2)
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self.assertIs(service1.client, service2.client)
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self.assertIs(service1.client, client1)
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self.assertIs(service2.client, client2)
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self.assertIs(client1, client2)
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def test_async_mode(self):
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instance = object()
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async def create_instance():
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return instance
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provider = providers.Singleton(create_instance)
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instance1 = self._run(provider())
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instance2 = self._run(provider())
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self.assertIs(instance1, instance2)
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self.assertIs(instance, instance)
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def test_async_init_with_error(self):
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# Disable default exception handling to prevent output
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asyncio.get_event_loop().set_exception_handler(lambda loop, context: ...)
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async def create_instance():
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create_instance.counter += 1
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raise RuntimeError()
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create_instance.counter = 0
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provider = providers.Singleton(create_instance)
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future = provider()
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self.assertTrue(provider.is_async_mode_enabled())
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with self.assertRaises(RuntimeError):
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self._run(future)
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self.assertEqual(create_instance.counter, 1)
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self.assertTrue(provider.is_async_mode_enabled())
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with self.assertRaises(RuntimeError):
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self._run(provider())
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self.assertEqual(create_instance.counter, 2)
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self.assertTrue(provider.is_async_mode_enabled())
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# Restore default exception handling
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asyncio.get_event_loop().set_exception_handler(None)
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class DelegatedSingletonTests(AsyncTestCase):
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def test_async_mode(self):
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instance = object()
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async def create_instance():
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return instance
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provider = providers.DelegatedSingleton(create_instance)
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instance1 = self._run(provider())
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instance2 = self._run(provider())
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self.assertIs(instance1, instance2)
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self.assertIs(instance, instance)
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class ThreadSafeSingletonTests(AsyncTestCase):
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def test_async_mode(self):
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instance = object()
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async def create_instance():
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return instance
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provider = providers.ThreadSafeSingleton(create_instance)
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instance1 = self._run(provider())
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instance2 = self._run(provider())
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self.assertIs(instance1, instance2)
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self.assertIs(instance, instance)
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class DelegatedThreadSafeSingletonTests(AsyncTestCase):
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def test_async_mode(self):
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instance = object()
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async def create_instance():
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return instance
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provider = providers.DelegatedThreadSafeSingleton(create_instance)
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instance1 = self._run(provider())
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instance2 = self._run(provider())
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self.assertIs(instance1, instance2)
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self.assertIs(instance, instance)
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class ThreadLocalSingletonTests(AsyncTestCase):
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def test_async_mode(self):
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instance = object()
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async def create_instance():
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return instance
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provider = providers.ThreadLocalSingleton(create_instance)
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instance1 = self._run(provider())
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instance2 = self._run(provider())
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self.assertIs(instance1, instance2)
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self.assertIs(instance, instance)
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def test_async_init_with_error(self):
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# Disable default exception handling to prevent output
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asyncio.get_event_loop().set_exception_handler(lambda loop, context: ...)
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async def create_instance():
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create_instance.counter += 1
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raise RuntimeError()
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create_instance.counter = 0
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provider = providers.ThreadLocalSingleton(create_instance)
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future = provider()
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self.assertTrue(provider.is_async_mode_enabled())
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with self.assertRaises(RuntimeError):
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self._run(future)
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self.assertEqual(create_instance.counter, 1)
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self.assertTrue(provider.is_async_mode_enabled())
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with self.assertRaises(RuntimeError):
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self._run(provider())
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self.assertEqual(create_instance.counter, 2)
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self.assertTrue(provider.is_async_mode_enabled())
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# Restore default exception handling
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asyncio.get_event_loop().set_exception_handler(None)
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class DelegatedThreadLocalSingletonTests(AsyncTestCase):
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def test_async_mode(self):
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instance = object()
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async def create_instance():
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return instance
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provider = providers.DelegatedThreadLocalSingleton(create_instance)
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instance1 = self._run(provider())
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instance2 = self._run(provider())
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self.assertIs(instance1, instance2)
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self.assertIs(instance, instance)
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class ProvidedInstanceTests(AsyncTestCase):
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def test_provided_attribute(self):
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class TestClient:
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def __init__(self, resource):
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self.resource = resource
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class TestService:
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def __init__(self, resource):
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self.resource = resource
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class TestContainer(containers.DeclarativeContainer):
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resource = providers.Resource(init_resource, providers.Object(RESOURCE1))
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client = providers.Factory(TestClient, resource=resource)
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service = providers.Factory(TestService, resource=client.provided.resource)
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container = TestContainer()
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instance1, instance2 = self._run(
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asyncio.gather(
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container.service(),
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container.service(),
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),
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)
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self.assertIs(instance1.resource, RESOURCE1)
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self.assertIs(instance2.resource, RESOURCE1)
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self.assertIs(instance1.resource, instance2.resource)
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def test_provided_item(self):
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class TestClient:
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def __init__(self, resource):
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self.resource = resource
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def __getitem__(self, item):
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return getattr(self, item)
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class TestService:
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def __init__(self, resource):
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self.resource = resource
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class TestContainer(containers.DeclarativeContainer):
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resource = providers.Resource(init_resource, providers.Object(RESOURCE1))
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client = providers.Factory(TestClient, resource=resource)
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service = providers.Factory(TestService, resource=client.provided['resource'])
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container = TestContainer()
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instance1, instance2 = self._run(
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asyncio.gather(
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container.service(),
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container.service(),
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),
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)
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self.assertIs(instance1.resource, RESOURCE1)
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self.assertIs(instance2.resource, RESOURCE1)
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self.assertIs(instance1.resource, instance2.resource)
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def test_provided_method_call(self):
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class TestClient:
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def __init__(self, resource):
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self.resource = resource
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def get_resource(self):
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return self.resource
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class TestService:
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def __init__(self, resource):
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self.resource = resource
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class TestContainer(containers.DeclarativeContainer):
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resource = providers.Resource(init_resource, providers.Object(RESOURCE1))
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client = providers.Factory(TestClient, resource=resource)
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service = providers.Factory(TestService, resource=client.provided.get_resource.call())
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container = TestContainer()
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instance1, instance2 = self._run(
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asyncio.gather(
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container.service(),
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container.service(),
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),
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)
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self.assertIs(instance1.resource, RESOURCE1)
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self.assertIs(instance2.resource, RESOURCE1)
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self.assertIs(instance1.resource, instance2.resource)
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class DependencyTests(AsyncTestCase):
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def test_isinstance(self):
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dependency = 1.0
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|
|
|
async def get_async():
|
|
return dependency
|
|
|
|
provider = providers.Dependency(instance_of=float)
|
|
provider.override(providers.Callable(get_async))
|
|
|
|
self.assertTrue(provider.is_async_mode_undefined())
|
|
|
|
dependency1 = self._run(provider())
|
|
|
|
self.assertTrue(provider.is_async_mode_enabled())
|
|
|
|
dependency2 = self._run(provider())
|
|
|
|
self.assertEqual(dependency1, dependency)
|
|
self.assertEqual(dependency2, dependency)
|
|
|
|
def test_isinstance_invalid(self):
|
|
async def get_async():
|
|
return {}
|
|
|
|
provider = providers.Dependency(instance_of=float)
|
|
provider.override(providers.Callable(get_async))
|
|
|
|
self.assertTrue(provider.is_async_mode_undefined())
|
|
|
|
with self.assertRaises(errors.Error):
|
|
self._run(provider())
|
|
|
|
self.assertTrue(provider.is_async_mode_enabled())
|
|
|
|
def test_async_mode(self):
|
|
dependency = 123
|
|
|
|
async def get_async():
|
|
return dependency
|
|
|
|
def get_sync():
|
|
return dependency
|
|
|
|
provider = providers.Dependency(instance_of=int)
|
|
provider.override(providers.Factory(get_async))
|
|
|
|
self.assertTrue(provider.is_async_mode_undefined())
|
|
|
|
dependency1 = self._run(provider())
|
|
|
|
self.assertTrue(provider.is_async_mode_enabled())
|
|
|
|
dependency2 = self._run(provider())
|
|
self.assertEqual(dependency1, dependency)
|
|
self.assertEqual(dependency2, dependency)
|
|
|
|
provider.override(providers.Factory(get_sync))
|
|
|
|
dependency3 = self._run(provider())
|
|
|
|
self.assertTrue(provider.is_async_mode_enabled())
|
|
|
|
dependency4 = self._run(provider())
|
|
self.assertEqual(dependency3, dependency)
|
|
self.assertEqual(dependency4, dependency)
|
|
|
|
|
|
class OverrideTests(AsyncTestCase):
|
|
|
|
def test_provider(self):
|
|
dependency = object()
|
|
|
|
async def _get_dependency_async():
|
|
return dependency
|
|
|
|
def _get_dependency_sync():
|
|
return dependency
|
|
|
|
provider = providers.Provider()
|
|
|
|
provider.override(providers.Callable(_get_dependency_async))
|
|
dependency1 = self._run(provider())
|
|
|
|
provider.override(providers.Callable(_get_dependency_sync))
|
|
dependency2 = self._run(provider())
|
|
|
|
self.assertIs(dependency1, dependency)
|
|
self.assertIs(dependency2, dependency)
|
|
|
|
def test_callable(self):
|
|
dependency = object()
|
|
|
|
async def _get_dependency_async():
|
|
return dependency
|
|
|
|
def _get_dependency_sync():
|
|
return dependency
|
|
|
|
provider = providers.Callable(_get_dependency_async)
|
|
dependency1 = self._run(provider())
|
|
|
|
provider.override(providers.Callable(_get_dependency_sync))
|
|
dependency2 = self._run(provider())
|
|
|
|
self.assertIs(dependency1, dependency)
|
|
self.assertIs(dependency2, dependency)
|
|
|
|
def test_factory(self):
|
|
dependency = object()
|
|
|
|
async def _get_dependency_async():
|
|
return dependency
|
|
|
|
def _get_dependency_sync():
|
|
return dependency
|
|
|
|
provider = providers.Factory(_get_dependency_async)
|
|
dependency1 = self._run(provider())
|
|
|
|
provider.override(providers.Callable(_get_dependency_sync))
|
|
dependency2 = self._run(provider())
|
|
|
|
self.assertIs(dependency1, dependency)
|
|
self.assertIs(dependency2, dependency)
|
|
|
|
def test_async_mode_enabling(self):
|
|
dependency = object()
|
|
|
|
async def _get_dependency_async():
|
|
return dependency
|
|
|
|
provider = providers.Callable(_get_dependency_async)
|
|
self.assertTrue(provider.is_async_mode_undefined())
|
|
|
|
self._run(provider())
|
|
|
|
self.assertTrue(provider.is_async_mode_enabled())
|
|
|
|
def test_async_mode_disabling(self):
|
|
dependency = object()
|
|
|
|
def _get_dependency():
|
|
return dependency
|
|
|
|
provider = providers.Callable(_get_dependency)
|
|
self.assertTrue(provider.is_async_mode_undefined())
|
|
|
|
provider()
|
|
|
|
self.assertTrue(provider.is_async_mode_disabled())
|
|
|
|
def test_async_mode_enabling_on_overriding(self):
|
|
dependency = object()
|
|
|
|
async def _get_dependency_async():
|
|
return dependency
|
|
|
|
provider = providers.Provider()
|
|
provider.override(providers.Callable(_get_dependency_async))
|
|
self.assertTrue(provider.is_async_mode_undefined())
|
|
|
|
self._run(provider())
|
|
|
|
self.assertTrue(provider.is_async_mode_enabled())
|
|
|
|
def test_async_mode_disabling_on_overriding(self):
|
|
dependency = object()
|
|
|
|
def _get_dependency():
|
|
return dependency
|
|
|
|
provider = providers.Provider()
|
|
provider.override(providers.Callable(_get_dependency))
|
|
self.assertTrue(provider.is_async_mode_undefined())
|
|
|
|
provider()
|
|
|
|
self.assertTrue(provider.is_async_mode_disabled())
|
|
|
|
|
|
class TestAsyncModeApi(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
self.provider = providers.Provider()
|
|
|
|
def test_default_mode(self):
|
|
self.assertFalse(self.provider.is_async_mode_enabled())
|
|
self.assertFalse(self.provider.is_async_mode_disabled())
|
|
self.assertTrue(self.provider.is_async_mode_undefined())
|
|
|
|
def test_enable(self):
|
|
self.provider.enable_async_mode()
|
|
|
|
self.assertTrue(self.provider.is_async_mode_enabled())
|
|
self.assertFalse(self.provider.is_async_mode_disabled())
|
|
self.assertFalse(self.provider.is_async_mode_undefined())
|
|
|
|
def test_disable(self):
|
|
self.provider.disable_async_mode()
|
|
|
|
self.assertFalse(self.provider.is_async_mode_enabled())
|
|
self.assertTrue(self.provider.is_async_mode_disabled())
|
|
self.assertFalse(self.provider.is_async_mode_undefined())
|
|
|
|
def test_reset(self):
|
|
self.provider.enable_async_mode()
|
|
|
|
self.assertTrue(self.provider.is_async_mode_enabled())
|
|
self.assertFalse(self.provider.is_async_mode_disabled())
|
|
self.assertFalse(self.provider.is_async_mode_undefined())
|
|
|
|
self.provider.reset_async_mode()
|
|
|
|
self.assertFalse(self.provider.is_async_mode_enabled())
|
|
self.assertFalse(self.provider.is_async_mode_disabled())
|
|
self.assertTrue(self.provider.is_async_mode_undefined())
|
|
|
|
|
|
class AsyncTypingStubTests(AsyncTestCase):
|
|
|
|
def test_async_(self):
|
|
container = Container()
|
|
|
|
client1 = self._run(container.client.async_())
|
|
client2 = self._run(container.client.async_())
|
|
|
|
self.assertIsInstance(client1, Client)
|
|
self.assertIs(client1.resource1, RESOURCE1)
|
|
self.assertIs(client1.resource2, RESOURCE2)
|
|
|
|
self.assertIsInstance(client2, Client)
|
|
self.assertIs(client2.resource1, RESOURCE1)
|
|
self.assertIs(client2.resource2, RESOURCE2)
|
|
|
|
service1 = self._run(container.service.async_())
|
|
service2 = self._run(container.service.async_())
|
|
|
|
self.assertIsInstance(service1, Service)
|
|
self.assertIsInstance(service1.client, Client)
|
|
self.assertIs(service1.client.resource1, RESOURCE1)
|
|
self.assertIs(service1.client.resource2, RESOURCE2)
|
|
|
|
self.assertIsInstance(service2, Service)
|
|
self.assertIsInstance(service2.client, Client)
|
|
self.assertIs(service2.client.resource1, RESOURCE1)
|
|
self.assertIs(service2.client.resource2, RESOURCE2)
|
|
|
|
self.assertIsNot(service1.client, service2.client)
|
|
|
|
|
|
class AsyncProvidersWithAsyncDependenciesTests(AsyncTestCase):
|
|
|
|
def test_injections(self):
|
|
# See: https://github.com/ets-labs/python-dependency-injector/issues/368
|
|
async def async_db_provider():
|
|
return {'db': 'ok'}
|
|
|
|
async def async_service(db=None):
|
|
return {'service': 'ok', 'db': db}
|
|
|
|
class Container(containers.DeclarativeContainer):
|
|
|
|
db = providers.Factory(async_db_provider)
|
|
service = providers.Singleton(async_service, db=db)
|
|
|
|
container = Container()
|
|
service = self._run(container.service())
|
|
|
|
self.assertEquals(service, {'service': 'ok', 'db': {'db': 'ok'}})
|