public void GetTextDocuments() { var textDocuments = new List <TextDocument> { new TextDocument { Id = "1", Text = "Test1", Name = "Test2", Owner = new ApplicationUser { Id = "1" } }, new TextDocument { Id = "2", Text = "Test3", Name = "Test4", Owner = new ApplicationUser { Id = "2" } }, }; var documentService = new Mock <IDocumentService>(); documentService .Setup(service => service.GetDocumentsForUser()) .Returns(textDocuments); var controller = new DocumentsController(documentService.Object); var result = controller.GetTextDocuments(); Assert.Equal(textDocuments, result); }