public void GetPersonsByColorTest()
        {
            Mock <ILogger <PersonsController> > mockLogger            = new Mock <ILogger <PersonsController> >();
            Mock <IPersonsRepository>           mockPersonsRepository = new Mock <IPersonsRepository>();

            mockPersonsRepository.Setup(o => o.GetPersonsByColor(1)).Returns(new List <Person>());
            PersonsController controller = new PersonsController(mockLogger.Object, mockPersonsRepository.Object);

            Assert.IsInstanceOf <IEnumerable <Person> >(controller.GetPersonsByColor(1));
        }