public async Task CheckMyEmail_Test() { var emailServiceMock = new Mock <IEmailService>().Object; var concreteMailServiceMock = new Mock <IConcreteMailService>().Object; var searchServiceMock = new Mock <ISearchService>().Object; var encodeDecodeServiceMock = new Mock <IEncodeDecodeService>().Object; var defaultContext = new DefaultHttpContext() { User = new ClaimsPrincipal() }; var controller = new EmailController(emailServiceMock, concreteMailServiceMock, searchServiceMock, encodeDecodeServiceMock) { ControllerContext = new ControllerContext() { HttpContext = defaultContext } }; var result = await controller.CheckMyEmail(); Assert.IsInstanceOfType(result, typeof(ViewResult)); }