public async Task GetUsersSampleByIDAsync_ShouldReturnNotFound_WhenUserSampleIsNull()
        {
            //arrange
            int         id          = -2;
            UsersSample usersSample = null;

            _projectBLMock.Setup(i => i.GetUsersSampleByIDAsync(id)).ReturnsAsync(usersSample);
            UsersSampleController usersSampleController = new UsersSampleController(_projectBLMock.Object);

            //act
            var result = await usersSampleController.GetUsersSampleByIDAsync(id);

            //assert
            Assert.IsType <NotFoundResult>(result);
        }
        public async Task GetUsersSampleByIDAsync_ShouldReturnOKObject_WhenIDIsValid()
        {
            //arrange
            int         id          = 1;
            UsersSample usersSample = new UsersSample();

            _projectBLMock.Setup(i => i.GetUsersSampleByIDAsync(id)).ReturnsAsync(usersSample);
            UsersSampleController usersSampleController = new UsersSampleController(_projectBLMock.Object);

            //act
            var result = await usersSampleController.GetUsersSampleByIDAsync(id);

            //assert
            Assert.IsType <OkObjectResult>(result);
        }