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from testtools import TestCase, ExpectedException |
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from auxlib.configuration import Configuration |
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from auxlib.exceptions import InitializationError |
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from auxlib.factory import Factory |
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class AppContext(Configuration): |
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pass |
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appcontext = AppContext('foo', __package__) |
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class SomeFactory(Factory): |
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def do_something(self): |
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raise NotImplementedError() |
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class ThisImplementation(SomeFactory): |
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def __init__(self, context): |
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self._value = context.test_value |
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def do_something(self): |
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return self._value |
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class ThatImplementation(SomeFactory): |
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do_cache = True |
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def __init__(self, context): |
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self._value = context.test_value |
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def do_something(self): |
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return self._value |
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class AnotherFactory(Factory): |
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def do_something(self): |
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raise NotImplementedError() |
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class AnotherImplementation(AnotherFactory): |
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def __init__(self, context): |
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self._value = context.test_value |
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class GatewayBaseTests(TestCase): |
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def test_get_instance_before_initialization(self): |
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with ExpectedException(InitializationError): |
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AnotherFactory.factory.get_instance() |
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with ExpectedException(InitializationError): |
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AnotherFactory.factory.get_instance() |
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with ExpectedException(RuntimeError): |
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AnotherFactory.factory.initialize(appcontext, ThisImplementation) |
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AnotherFactory.factory.initialize(appcontext, AnotherImplementation) |
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self.assertTrue(AnotherFactory.factory.get_instance()) |
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def test_initialize_unregistered_class(self): |
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with ExpectedException(RuntimeError): |
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SomeFactory.factory.initialize(appcontext, 'NotARegisteredClass') |
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def test_cached_instances(self): |
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SomeFactory.factory.initialize(appcontext, 'ThatImplementation') |
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appcontext.set_env('test_value', 44) |
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self.assertEqual(44, SomeFactory().do_something()) |
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self.assertEqual(44, SomeFactory(ThisImplementation).do_something()) |
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self.assertEqual(44, SomeFactory('ThatImplementation').do_something()) |
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self.assertEqual(44, SomeFactory.factory.get_instance().do_something()) |
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self.assertEqual(44, SomeFactory.factory.get_instance(ThatImplementation).do_something()) |
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self.assertEqual(44, SomeFactory.factory.get_instance('ThisImplementation').do_something()) |
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appcontext.set_env('test_value', 88) |
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self.assertEqual(44, SomeFactory().do_something()) |
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self.assertEqual(88, SomeFactory(ThisImplementation).do_something()) |
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self.assertEqual(44, SomeFactory('ThatImplementation').do_something()) |
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self.assertEqual(44, SomeFactory.factory.get_instance().do_something()) |
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self.assertEqual(44, SomeFactory.factory.get_instance(ThatImplementation).do_something()) |
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self.assertEqual(88, SomeFactory.factory.get_instance('ThisImplementation').do_something()) |
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