public void ViewEngines_ReturnsInstantiatedListOfViewEngines()
        {
            // Arrange
            var service         = Mock.Of <ITestService>();
            var viewEngine      = Mock.Of <IViewEngine>();
            var type            = typeof(TestViewEngine);
            var serviceProvider = new Mock <IServiceProvider>();

            serviceProvider.Setup(p => p.GetService(typeof(ITestService)))
            .Returns(service);
            var typeActivatorCache = new DefaultTypeActivatorCache();
            var optionsAccessor    = new MockMvcViewOptionsAccessor();

            optionsAccessor.Options.ViewEngines.Add(viewEngine);
            optionsAccessor.Options.ViewEngines.Add(type);
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor,
                typeActivatorCache,
                serviceProvider.Object);

            // Act
            var result = compositeViewEngine.ViewEngines;

            // Assert
            Assert.Collection(result,
                              actual => Assert.Same(viewEngine, actual),
                              actual =>
            {
                var testViewEngine = Assert.IsType <TestViewEngine>(actual);
                Assert.Same(service, testViewEngine.Service);
            });
        }
Beispiel #2
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        public void FindPartialView_ReturnsNotFound_IfAllViewEnginesReturnNotFound()
        {
            // Arrange
            var viewName = "foo";
            var engine1  = new Mock <IViewEngine>();
            var engine2  = new Mock <IViewEngine>();
            var engine3  = new Mock <IViewEngine>();

            engine1.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, new[] { "1", "2" }));
            engine2.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, new[] { "3" }));
            engine3.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, new[] { "4", "5" }));

            var provider = new Mock <IViewEngineProvider>();

            provider.SetupGet(p => p.ViewEngines)
            .Returns(new[] { engine1.Object, engine2.Object, engine3.Object });
            var compositeViewEngine = new CompositeViewEngine(provider.Object);

            // Act
            var result = compositeViewEngine.FindPartialView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Equal(new[] { "1", "2", "3", "4", "5" }, result.SearchedLocations);
        }
Beispiel #3
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        public void FindView_ReturnsViewFromFirstViewEngineWithFoundResult()
        {
            // Arrange
            var viewName = "foo";
            var engine1  = new Mock <IViewEngine>();
            var engine2  = new Mock <IViewEngine>();
            var engine3  = new Mock <IViewEngine>();
            var view2    = Mock.Of <IView>();
            var view3    = Mock.Of <IView>();

            engine1.Setup(e => e.FindView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, Enumerable.Empty <string>()));
            engine2.Setup(e => e.FindView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.Found(viewName, view2));
            engine3.Setup(e => e.FindView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.Found(viewName, view3));

            var provider = new Mock <IViewEngineProvider>();

            provider.SetupGet(p => p.ViewEngines)
            .Returns(new[] { engine1.Object, engine2.Object, engine3.Object });
            var compositeViewEngine = new CompositeViewEngine(provider.Object);

            // Act
            var result = compositeViewEngine.FindView(GetActionContext(), viewName);

            // Assert
            Assert.True(result.Success);
            Assert.Same(view2, result.View);
            Assert.Equal(viewName, result.ViewName);
        }
        public void FindPartialView_ReturnsViewFromFirstViewEngineWithFoundResult()
        {
            // Arrange
            var viewName = "bar";
            var engine1  = new Mock <IViewEngine>();
            var engine2  = new Mock <IViewEngine>();
            var engine3  = new Mock <IViewEngine>();
            var view2    = Mock.Of <IView>();
            var view3    = Mock.Of <IView>();

            engine1.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, Enumerable.Empty <string>()));
            engine2.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.Found(viewName, view2));
            engine3.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.Found(viewName, view3));

            var optionsAccessor = new MockMvcViewOptionsAccessor();

            optionsAccessor.Options.ViewEngines.Add(engine1.Object);
            optionsAccessor.Options.ViewEngines.Add(engine2.Object);
            optionsAccessor.Options.ViewEngines.Add(engine3.Object);
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor,
                Mock.Of <ITypeActivatorCache>(),
                Mock.Of <IServiceProvider>());

            // Act
            var result = compositeViewEngine.FindPartialView(GetActionContext(), viewName);

            // Assert
            Assert.True(result.Success);
            Assert.Same(view2, result.View);
            Assert.Equal(viewName, result.ViewName);
        }
        public void FindPartialView_ReturnsNotFound_IfAllViewEnginesReturnNotFound()
        {
            // Arrange
            var viewName = "foo";
            var engine1  = new Mock <IViewEngine>();
            var engine2  = new Mock <IViewEngine>();
            var engine3  = new Mock <IViewEngine>();

            engine1.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, new[] { "1", "2" }));
            engine2.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, new[] { "3" }));
            engine3.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, new[] { "4", "5" }));

            var optionsAccessor = new MockMvcViewOptionsAccessor();

            optionsAccessor.Options.ViewEngines.Add(engine1.Object);
            optionsAccessor.Options.ViewEngines.Add(engine2.Object);
            optionsAccessor.Options.ViewEngines.Add(engine3.Object);
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor,
                Mock.Of <ITypeActivatorCache>(),
                Mock.Of <IServiceProvider>());

            // Act
            var result = compositeViewEngine.FindPartialView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Equal(new[] { "1", "2", "3", "4", "5" }, result.SearchedLocations);
        }
        public void ViewEngines_ReturnsInstantiatedListOfViewEngines()
        {
            // Arrange
            var service = Mock.Of<ITestService>();
            var viewEngine = Mock.Of<IViewEngine>();
            var type = typeof(TestViewEngine);
            var serviceProvider = new Mock<IServiceProvider>();
            serviceProvider.Setup(p => p.GetService(typeof(ITestService)))
                           .Returns(service);
            var typeActivatorCache = new DefaultTypeActivatorCache();
            var optionsAccessor = new MockMvcOptionsAccessor();
            optionsAccessor.Options.ViewEngines.Add(viewEngine);
            optionsAccessor.Options.ViewEngines.Add(type);
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor, 
                typeActivatorCache, 
                serviceProvider.Object);

            // Act
            var result = compositeViewEngine.ViewEngines;

            // Assert
            Assert.Collection(result,
                actual => Assert.Same(viewEngine, actual),
                actual =>
                {
                    var testViewEngine = Assert.IsType<TestViewEngine>(actual);
                    Assert.Same(service, testViewEngine.Service);
                });
        }
        public void FindPartialView_ReturnsNotFoundResult_WhenNoViewEnginesAreRegistered()
        {
            // Arrange
            var viewName            = "my-partial-view";
            var optionsAccessor     = new MockMvcViewOptionsAccessor();
            var compositeViewEngine = new CompositeViewEngine(optionsAccessor);

            // Act
            var result = compositeViewEngine.FindPartialView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Empty(result.SearchedLocations);
        }
Beispiel #8
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        public void FindPartialView_ReturnsNotFoundResult_WhenNoViewEnginesAreRegistered()
        {
            // Arrange
            var viewName = "my-partial-view";
            var provider = new Mock <IViewEngineProvider>();

            provider.SetupGet(p => p.ViewEngines)
            .Returns(new IViewEngine[0]);
            var compositeViewEngine = new CompositeViewEngine(provider.Object);

            // Act
            var result = compositeViewEngine.FindPartialView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Empty(result.SearchedLocations);
        }
Beispiel #9
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        public void FindView_ReturnsNotFoundResult_WhenNoViewEnginesAreRegistered()
        {
            // Arrange
            var viewName = "test-view";
            var provider = new Mock<IViewEngineProvider>();
            provider.SetupGet(p => p.ViewEngines)
                    .Returns(new IViewEngine[0]);
            var actionContext = GetActionContext();
            var compositeViewEngine = new CompositeViewEngine(provider.Object);

            // Act
            var result = compositeViewEngine.FindView(actionContext, viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Empty(result.SearchedLocations);
        }
        public void ViewEngines_UsesListOfViewEnginesFromOptions()
        {
            // Arrange
            var viewEngine1     = Mock.Of <IViewEngine>();
            var viewEngine2     = Mock.Of <IViewEngine>();
            var optionsAccessor = new MockMvcViewOptionsAccessor();

            optionsAccessor.Options.ViewEngines.Add(viewEngine1);
            optionsAccessor.Options.ViewEngines.Add(viewEngine2);
            var compositeViewEngine = new CompositeViewEngine(optionsAccessor);

            // Act
            var result = compositeViewEngine.ViewEngines;

            // Assert
            Assert.Equal(new[] { viewEngine1, viewEngine2 }, result);
        }
        public void FindView_ReturnsNotFoundResult_WhenNoViewEnginesAreRegistered()
        {
            // Arrange
            var viewName = "test-view";
            var actionContext = GetActionContext();
            var optionsAccessor = new MockMvcOptionsAccessor();
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor,
                Mock.Of<ITypeActivatorCache>(),
                Mock.Of<IServiceProvider>());

            // Act
            var result = compositeViewEngine.FindView(actionContext, viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Empty(result.SearchedLocations);
        }
        public void FindView_ReturnsNotFoundResult_WhenNoViewEnginesAreRegistered()
        {
            // Arrange
            var viewName            = "test-view";
            var actionContext       = GetActionContext();
            var optionsAccessor     = new MockMvcViewOptionsAccessor();
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor,
                Mock.Of <ITypeActivatorCache>(),
                Mock.Of <IServiceProvider>());

            // Act
            var result = compositeViewEngine.FindView(actionContext, viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Empty(result.SearchedLocations);
        }
Beispiel #13
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        public void FindView_ReturnsNotFoundResult_WhenExactlyOneViewEngineIsRegisteredWhichReturnsNotFoundResult()
        {
            // Arrange
            var viewName = "test-view";
            var provider = new Mock<IViewEngineProvider>();
            var engine = new Mock<IViewEngine>();
            engine.Setup(e => e.FindView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.NotFound(viewName, new[] { "controller/test-view" }));
            provider.SetupGet(p => p.ViewEngines)
                    .Returns(new[] { engine.Object });
            var compositeViewEngine = new CompositeViewEngine(provider.Object);

            // Act
            var result = compositeViewEngine.FindView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Equal(new[] { "controller/test-view" }, result.SearchedLocations);
        }
Beispiel #14
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        public void FindView_ReturnsNotFoundResult_WhenExactlyOneViewEngineIsRegisteredWhichReturnsNotFoundResult()
        {
            // Arrange
            var viewName = "test-view";
            var provider = new Mock <IViewEngineProvider>();
            var engine   = new Mock <IViewEngine>();

            engine.Setup(e => e.FindView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, new[] { "controller/test-view" }));
            provider.SetupGet(p => p.ViewEngines)
            .Returns(new[] { engine.Object });
            var compositeViewEngine = new CompositeViewEngine(provider.Object);

            // Act
            var result = compositeViewEngine.FindView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Equal(new[] { "controller/test-view" }, result.SearchedLocations);
        }
        public void FindPartialView_ReturnsNotFoundResult_WhenExactlyOneViewEngineIsRegisteredWhichReturnsNotFoundResult()
        {
            // Arrange
            var viewName = "partial-view";
            var engine   = new Mock <IViewEngine>();

            engine.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, new[] { "Shared/partial-view" }));
            var optionsAccessor = new MockMvcViewOptionsAccessor();

            optionsAccessor.Options.ViewEngines.Add(engine.Object);
            var compositeViewEngine = new CompositeViewEngine(optionsAccessor);

            // Act
            var result = compositeViewEngine.FindPartialView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Equal(new[] { "Shared/partial-view" }, result.SearchedLocations);
        }
Beispiel #16
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        public void FindView_ReturnsView_WhenExactlyOneViewEngineIsRegisteredWhichReturnsAFoundResult()
        {
            // Arrange
            var viewName = "test-view";
            var provider = new Mock<IViewEngineProvider>();
            var engine = new Mock<IViewEngine>();
            var view = Mock.Of<IView>();
            engine.Setup(e => e.FindView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.Found(viewName, view));
            provider.SetupGet(p => p.ViewEngines)
                    .Returns(new[] { engine.Object });
            var compositeViewEngine = new CompositeViewEngine(provider.Object);

            // Act
            var result = compositeViewEngine.FindView(GetActionContext(), viewName);

            // Assert
            Assert.True(result.Success);
            Assert.Same(view, result.View);
        }
        public void FindView_ReturnsNotFoundResult_WhenExactlyOneViewEngineIsRegisteredWhichReturnsNotFoundResult()
        {
            // Arrange
            var viewName = "test-view";
            var engine = new Mock<IViewEngine>();
            engine.Setup(e => e.FindView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.NotFound(viewName, new[] { "controller/test-view" }));
            var optionsAccessor = new MockMvcOptionsAccessor();
            optionsAccessor.Options.ViewEngines.Add(engine.Object);
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor,
                Mock.Of<ITypeActivatorCache>(),
                Mock.Of<IServiceProvider>());

            // Act
            var result = compositeViewEngine.FindView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Equal(new[] { "controller/test-view" }, result.SearchedLocations);
        }
Beispiel #18
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        public void FindView_ReturnsView_WhenExactlyOneViewEngineIsRegisteredWhichReturnsAFoundResult()
        {
            // Arrange
            var viewName = "test-view";
            var provider = new Mock <IViewEngineProvider>();
            var engine   = new Mock <IViewEngine>();
            var view     = Mock.Of <IView>();

            engine.Setup(e => e.FindView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.Found(viewName, view));
            provider.SetupGet(p => p.ViewEngines)
            .Returns(new[] { engine.Object });
            var compositeViewEngine = new CompositeViewEngine(provider.Object);

            // Act
            var result = compositeViewEngine.FindView(GetActionContext(), viewName);

            // Assert
            Assert.True(result.Success);
            Assert.Same(view, result.View);
        }
        public void FindView_ReturnsView_WhenExactlyOneViewEngineIsRegisteredWhichReturnsAFoundResult()
        {
            // Arrange
            var viewName = "test-view";
            var engine   = new Mock <IViewEngine>();
            var view     = Mock.Of <IView>();

            engine.Setup(e => e.FindView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.Found(viewName, view));
            var optionsAccessor = new MockMvcViewOptionsAccessor();

            optionsAccessor.Options.ViewEngines.Add(engine.Object);
            var compositeViewEngine = new CompositeViewEngine(optionsAccessor);

            // Act
            var result = compositeViewEngine.FindView(GetActionContext(), viewName);

            // Assert
            Assert.True(result.Success);
            Assert.Same(view, result.View);
        }
        public void FindView_ReturnsNotFoundResult_WhenExactlyOneViewEngineIsRegisteredWhichReturnsNotFoundResult()
        {
            // Arrange
            var viewName = "test-view";
            var engine   = new Mock <IViewEngine>();

            engine.Setup(e => e.FindView(It.IsAny <ActionContext>(), It.IsAny <string>()))
            .Returns(ViewEngineResult.NotFound(viewName, new[] { "controller/test-view" }));
            var optionsAccessor = new MockMvcOptionsAccessor();

            optionsAccessor.Options.ViewEngines.Add(engine.Object);
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor,
                Mock.Of <ITypeActivatorCache>(),
                Mock.Of <IServiceProvider>());

            // Act
            var result = compositeViewEngine.FindView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Equal(new[] { "controller/test-view" }, result.SearchedLocations);
        }
        public void FindPartialView_ReturnsView_WhenExactlyOneViewEngineIsRegisteredWhichReturnsAFoundResult()
        {
            // Arrange
            var viewName = "test-view";
            var engine = new Mock<IViewEngine>();
            var view = Mock.Of<IView>();
            engine.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.Found(viewName, view));
            var optionsAccessor = new MockMvcOptionsAccessor();
            optionsAccessor.Options.ViewEngines.Add(engine.Object);
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor,
                Mock.Of<ITypeActivatorCache>(),
                Mock.Of<IServiceProvider>());

            // Act
            var result = compositeViewEngine.FindPartialView(GetActionContext(), viewName);

            // Assert
            Assert.True(result.Success);
            Assert.Same(view, result.View);
        }
        public void FindPartialView_ReturnsViewFromFirstViewEngineWithFoundResult()
        {
            // Arrange
            var viewName = "bar";
            var engine1 = new Mock<IViewEngine>();
            var engine2 = new Mock<IViewEngine>();
            var engine3 = new Mock<IViewEngine>();
            var view2 = Mock.Of<IView>();
            var view3 = Mock.Of<IView>();
            engine1.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.NotFound(viewName, Enumerable.Empty<string>()));
            engine2.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.Found(viewName, view2));
            engine3.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.Found(viewName, view3));

            var optionsAccessor = new MockMvcOptionsAccessor();
            optionsAccessor.Options.ViewEngines.Add(engine1.Object);
            optionsAccessor.Options.ViewEngines.Add(engine2.Object);
            optionsAccessor.Options.ViewEngines.Add(engine3.Object);
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor,
                Mock.Of<ITypeActivatorCache>(),
                Mock.Of<IServiceProvider>());

            // Act
            var result = compositeViewEngine.FindPartialView(GetActionContext(), viewName);

            // Assert
            Assert.True(result.Success);
            Assert.Same(view2, result.View);
            Assert.Equal(viewName, result.ViewName);
        }
        public void FindPartialView_ReturnsNotFound_IfAllViewEnginesReturnNotFound()
        {
            // Arrange
            var viewName = "foo";
            var engine1 = new Mock<IViewEngine>();
            var engine2 = new Mock<IViewEngine>();
            var engine3 = new Mock<IViewEngine>();
            engine1.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.NotFound(viewName, new[] { "1", "2" }));
            engine2.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.NotFound(viewName, new[] { "3" }));
            engine3.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.NotFound(viewName, new[] { "4", "5" }));

            var optionsAccessor = new MockMvcOptionsAccessor();
            optionsAccessor.Options.ViewEngines.Add(engine1.Object);
            optionsAccessor.Options.ViewEngines.Add(engine2.Object);
            optionsAccessor.Options.ViewEngines.Add(engine3.Object);
            var compositeViewEngine = new CompositeViewEngine(
                optionsAccessor,
                Mock.Of<ITypeActivatorCache>(),
                Mock.Of<IServiceProvider>());

            // Act
            var result = compositeViewEngine.FindPartialView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Equal(new[] { "1", "2", "3", "4", "5" }, result.SearchedLocations);
        }
Beispiel #24
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        public void FindPartialView_ReturnsNotFound_IfAllViewEnginesReturnNotFound()
        {
            // Arrange
            var viewName = "foo";
            var engine1 = new Mock<IViewEngine>();
            var engine2 = new Mock<IViewEngine>();
            var engine3 = new Mock<IViewEngine>();
            engine1.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.NotFound(viewName, new[] { "1", "2" }));
            engine2.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.NotFound(viewName, new[] { "3" }));
            engine3.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.NotFound(viewName, new[] { "4", "5" }));

            var provider = new Mock<IViewEngineProvider>();
            provider.SetupGet(p => p.ViewEngines)
                    .Returns(new[] { engine1.Object, engine2.Object, engine3.Object });
            var compositeViewEngine = new CompositeViewEngine(provider.Object);

            // Act
            var result = compositeViewEngine.FindPartialView(GetActionContext(), viewName);

            // Assert
            Assert.False(result.Success);
            Assert.Equal(new[] { "1", "2", "3", "4", "5" }, result.SearchedLocations);
        }
Beispiel #25
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        public void FindView_ReturnsViewFromFirstViewEngineWithFoundResult()
        {
            // Arrange
            var viewName = "foo";
            var engine1 = new Mock<IViewEngine>();
            var engine2 = new Mock<IViewEngine>();
            var engine3 = new Mock<IViewEngine>();
            var view2 = Mock.Of<IView>();
            var view3 = Mock.Of<IView>();
            engine1.Setup(e => e.FindView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.NotFound(viewName, Enumerable.Empty<string>()));
            engine2.Setup(e => e.FindView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.Found(viewName, view2));
            engine3.Setup(e => e.FindView(It.IsAny<ActionContext>(), It.IsAny<string>()))
                   .Returns(ViewEngineResult.Found(viewName, view3));

            var provider = new Mock<IViewEngineProvider>();
            provider.SetupGet(p => p.ViewEngines)
                    .Returns(new[] { engine1.Object, engine2.Object, engine3.Object });
            var compositeViewEngine = new CompositeViewEngine(provider.Object);

            // Act
            var result = compositeViewEngine.FindView(GetActionContext(), viewName);

            // Assert
            Assert.True(result.Success);
            Assert.Same(view2, result.View);
            Assert.Equal(viewName, result.ViewName);
        }