public async void SearchRobot_Ok()
        {
            //Arrange
            var robot = new Robot
            {
                Id   = Guid.NewGuid(),
                Name = "Test"
            };

            m_repositoryMock.Setup(t => t.SearchAsync(It.IsAny <Pagination>(), It.IsAny <Ordering>(), It.IsAny <IFilter <Robot> >()))
            .ReturnsAsync(new Tuple <int, List <Robot> >(1, new List <Robot> {
                robot
            }));

            //Act
            var(count, robots) = await m_robotService.SearchRobotAsync(new Pagination(), new Ordering(), new RobotFilter
            {
                SearchTerm = robot.Id.ToString()
            });

            //Assert
            m_repositoryMock.Verify(t => t.SearchAsync(It.IsAny <Pagination>(), It.IsAny <Ordering>(), It.IsAny <RobotFilter>()), Times.Once);
            Assert.Equal(1, count);
            Assert.Equal(robot, robots.First());
        }