public void AddPatient_ReturnsViewResult()
        {
            // Arrange
            var clientMock       = new Mock <INetworkClient>();
            var cacheServiceMock = new Mock <ICacheService>();
            var localizerMock    = new Mock <IStringLocalizer <PatientsController> >();
            var xlsServiceMock   = new Mock <IXlsService>();
            var controller       = new PatientsController(clientMock.Object, cacheServiceMock.Object, localizerMock.Object, xlsServiceMock.Object);

            // Act
            var result = controller.AddPatient();

            // Assert
            Assert.IsType <ViewResult>(result);
        }