public void GetRepository_OneGeneric_Success_Should_ReturnNull()
        {
            var             repository = Mock.Of <IRepositoryAsync <TestAggregateRoot, Guid> >();
            ITestUnitOfWork unitOfWork = new TestUnitOfWork(_Context, repository);

            var searchedRepo = unitOfWork.GetRepository <PlaceHolder>();

            searchedRepo.Should().BeNull();
        }