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25 lines
741 B
Python
25 lines
741 B
Python
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"""`NewInstance` and `Singleton` providers example."""
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from objects.providers import NewInstance
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from objects.providers import Singleton
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# NewInstance provider creates new instance of specified class on every call.
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new_object = NewInstance(object)
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object_1 = new_object()
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object_2 = new_object()
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assert object_1 is not object_2
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assert isinstance(object_1, object) and isinstance(object_2, object)
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# Singleton provider creates new instance of specified class on first call
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# and returns same instance on every next call.
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single_object = Singleton(object)
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single_object_1 = single_object()
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single_object_2 = single_object()
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assert single_object_1 is single_object_2
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assert isinstance(object_1, object) and isinstance(object_2, object)
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