python-dependency-injector/tests/typing/singleton.py
2020-08-26 16:59:42 -04:00

65 lines
1.9 KiB
Python

from typing import Tuple, Any, Dict
from dependency_injector import providers
class Animal:
...
class Cat(Animal):
def __init__(self, *_, **__): ...
@classmethod
def create(cls) -> Animal:
return cls()
# Test 1: to check the return type (class)
provider1 = providers.Singleton(Cat)
animal1: Animal = provider1(1, 2, 3, b='1', c=2, e=0.0)
# Test 2: to check the return type (class factory method)
provider2 = providers.Singleton(Cat.create)
animal2: Animal = provider2()
# Test 3: to check the .override() method
provider3 = providers.Singleton(Animal)
with provider3.override(providers.Singleton(Cat)):
provider3()
# Test 4: to check the .args, .kwargs, .attributes attributes
provider4 = providers.Singleton(Animal)
args4: Tuple[Any] = provider4.args
kwargs4: Dict[str, Any] = provider4.kwargs
attributes4: Dict[str, Any] = provider4.attributes
# Test 5: to check the provided instance interface
provider5 = providers.Singleton(Animal)
provided5: providers.ProvidedInstance = provider5.provided
attr_getter5: providers.AttributeGetter = provider5.provided.attr
item_getter5: providers.ItemGetter = provider5.provided['item']
method_caller5: providers.MethodCaller = provider5.provided.method.call(123, arg=324)
# Test 6: to check the DelegatedFactory
provider6 = providers.DelegatedSingleton(Cat)
animal6: Animal = provider6(1, 2, 3, b='1', c=2, e=0.0)
# # Test 7: to check the AbstractFactory
# provider7 = providers.AbstractFactory(Animal)
# provider7.override(providers.Factory(Cat))
# animal7: Animal = provider7(1, 2, 3, b='1', c=2, e=0.0)
#
# # Test 8: to check the FactoryDelegate __init__
# provider8 = providers.FactoryDelegate(providers.Factory(object))
#
# # Test 9: to check FactoryAggregate provider
# provider9 = providers.FactoryAggregate(
# a=providers.Factory(object),
# b=providers.Factory(object),
# )
# factory_a_9: providers.Factory = provider9.a
# factory_b_9: providers.Factory = provider9.b
# val9: Any = provider9('a')