def test_if_object_provider_always_return_same_instance(self):
provider = LazySingleInstanceProvider(TestClass1)
ret1 = provider.get_instance()
ret2 = provider.get_instance()
assert isinstance(ret1, TestClass1)
assert isinstance(ret2, TestClass1)
assert ret1 is ret2
def test_if_object_provider_always_return_same_instance(self):
provider = LazySingleInstanceProvider(TestClass1)
ret1 = provider.get_instance()
ret2 = provider.get_instance()
assert isinstance(ret1, TestClass1)
assert isinstance(ret2, TestClass1)
assert ret1 is ret2
def test_if_provider_raise_error_when_initialized_with_not_callable(self):
with pytest.raises(TypeError):
LazySingleInstanceProvider(1)
def test_if_provider_raise_error_when_callable_requires_arguments(self):
def func1(a):
return a
with pytest.raises(TypeError):
LazySingleInstanceProvider(func1)
def test_if_object_provider_returns_instance(self):
provider = LazySingleInstanceProvider(TestClass1)
ret1 = provider.get_instance()
assert isinstance(ret1, TestClass1)
def test_if_object_provider_returns_instance(self):
provider = LazySingleInstanceProvider(TestClass1)
ret1 = provider.get_instance()
assert isinstance(ret1, TestClass1)
