225 lines
10 KiB
C#
225 lines
10 KiB
C#
// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
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using System.Collections.Generic;
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using System.IO;
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using System.Web.Routing;
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using System.Web.TestUtil;
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using Moq;
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using Xunit;
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using Assert = Microsoft.TestCommon.AssertEx;
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namespace System.Web.Mvc.Test
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{
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public class ViewResultTest
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{
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private const string _viewName = "My cool view.";
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private const string _masterName = "My cool master.";
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[Fact]
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public void EmptyViewNameUsesActionNameAsViewName()
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{
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// Arrange
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ControllerBase controller = new Mock<ControllerBase>().Object;
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HttpContextBase httpContext = CreateHttpContext();
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RouteData routeData = new RouteData();
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routeData.Values["action"] = _viewName;
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ControllerContext context = new ControllerContext(httpContext, routeData, controller);
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Mock<IViewEngine> viewEngine = new Mock<IViewEngine>(MockBehavior.Strict);
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Mock<IView> view = new Mock<IView>(MockBehavior.Strict);
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List<IViewEngine> viewEngines = new List<IViewEngine>();
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viewEngines.Add(viewEngine.Object);
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Mock<ViewEngineCollection> viewEngineCollection = new Mock<ViewEngineCollection>(MockBehavior.Strict, viewEngines);
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ViewResult result = new ViewResultHelper { ViewEngineCollection = viewEngineCollection.Object };
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viewEngineCollection
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.Setup(e => e.FindView(It.IsAny<ControllerContext>(), _viewName, _masterName))
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.Returns(new ViewEngineResult(view.Object, viewEngine.Object));
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viewEngine
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.Setup(e => e.FindView(It.IsAny<ControllerContext>(), _viewName, _masterName, It.IsAny<bool>()))
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.Callback<ControllerContext, string, string, bool>(
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(controllerContext, viewName, masterName, useCache) =>
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{
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Assert.Same(httpContext, controllerContext.HttpContext);
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Assert.Same(routeData, controllerContext.RouteData);
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})
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.Returns(new ViewEngineResult(view.Object, viewEngine.Object));
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view
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.Setup(o => o.Render(It.IsAny<ViewContext>(), httpContext.Response.Output))
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.Callback<ViewContext, TextWriter>(
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(viewContext, writer) =>
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{
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Assert.Same(view.Object, viewContext.View);
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Assert.Same(result.ViewData, viewContext.ViewData);
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Assert.Same(result.TempData, viewContext.TempData);
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Assert.Same(controller, viewContext.Controller);
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});
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viewEngine
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.Setup(e => e.ReleaseView(context, It.IsAny<IView>()))
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.Callback<ControllerContext, IView>(
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(controllerContext, releasedView) => { Assert.Same(releasedView, view.Object); });
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// Act
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result.ExecuteResult(context);
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// Assert
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viewEngine.Verify();
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viewEngineCollection.Verify();
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view.Verify();
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}
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[Fact]
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public void EngineLookupFailureThrows()
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{
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// Arrange
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ControllerBase controller = new Mock<ControllerBase>().Object;
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HttpContextBase httpContext = CreateHttpContext();
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RouteData routeData = new RouteData();
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routeData.Values["action"] = _viewName;
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ControllerContext context = new ControllerContext(httpContext, routeData, controller);
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Mock<IViewEngine> viewEngine = new Mock<IViewEngine>(MockBehavior.Strict);
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List<IViewEngine> viewEngines = new List<IViewEngine>();
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viewEngines.Add(viewEngine.Object);
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Mock<ViewEngineCollection> viewEngineCollection = new Mock<ViewEngineCollection>(MockBehavior.Strict, viewEngines);
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ViewResult result = new ViewResultHelper { ViewEngineCollection = viewEngineCollection.Object };
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viewEngineCollection
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.Setup(e => e.FindView(It.IsAny<ControllerContext>(), _viewName, _masterName))
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.Returns(new ViewEngineResult(new[] { "location1", "location2" }));
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viewEngine
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.Setup(e => e.FindView(It.IsAny<ControllerContext>(), _viewName, _masterName, It.IsAny<bool>()))
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.Callback<ControllerContext, string, string, bool>(
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(controllerContext, viewName, masterName, useCache) =>
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{
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Assert.Same(httpContext, controllerContext.HttpContext);
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Assert.Same(routeData, controllerContext.RouteData);
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})
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.Returns(new ViewEngineResult(new[] { "location1", "location2" }));
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// Act & Assert
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Assert.Throws<InvalidOperationException>(
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() => result.ExecuteResult(context),
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@"The view '" + _viewName + @"' or its master was not found or no view engine supports the searched locations. The following locations were searched:
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location1
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location2");
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viewEngine.Verify();
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viewEngineCollection.Verify();
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}
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[Fact]
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public void EngineLookupSuccessRendersView()
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{
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// Arrange
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ControllerBase controller = new Mock<ControllerBase>().Object;
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HttpContextBase httpContext = CreateHttpContext();
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RouteData routeData = new RouteData();
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ControllerContext context = new ControllerContext(httpContext, routeData, controller);
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Mock<IViewEngine> viewEngine = new Mock<IViewEngine>(MockBehavior.Strict);
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Mock<IView> view = new Mock<IView>(MockBehavior.Strict);
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List<IViewEngine> viewEngines = new List<IViewEngine>();
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viewEngines.Add(viewEngine.Object);
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Mock<ViewEngineCollection> viewEngineCollection = new Mock<ViewEngineCollection>(MockBehavior.Strict, viewEngines);
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ViewResult result = new ViewResultHelper { ViewName = _viewName, ViewEngineCollection = viewEngineCollection.Object };
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view
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.Setup(o => o.Render(It.IsAny<ViewContext>(), httpContext.Response.Output))
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.Callback<ViewContext, TextWriter>(
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(viewContext, writer) =>
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{
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Assert.Same(view.Object, viewContext.View);
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Assert.Same(result.ViewData, viewContext.ViewData);
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Assert.Same(result.TempData, viewContext.TempData);
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Assert.Same(controller, viewContext.Controller);
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});
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viewEngineCollection
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.Setup(e => e.FindView(It.IsAny<ControllerContext>(), _viewName, _masterName))
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.Returns(new ViewEngineResult(view.Object, viewEngine.Object));
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viewEngine
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.Setup(e => e.FindView(It.IsAny<ControllerContext>(), _viewName, _masterName, It.IsAny<bool>()))
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.Callback<ControllerContext, string, string, bool>(
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(controllerContext, viewName, masterName, useCache) =>
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{
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Assert.Same(httpContext, controllerContext.HttpContext);
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Assert.Same(routeData, controllerContext.RouteData);
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})
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.Returns(new ViewEngineResult(view.Object, viewEngine.Object));
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viewEngine
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.Setup(e => e.ReleaseView(context, It.IsAny<IView>()))
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.Callback<ControllerContext, IView>(
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(controllerContext, releasedView) => { Assert.Same(releasedView, view.Object); });
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// Act
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result.ExecuteResult(context);
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// Assert
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viewEngine.Verify();
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viewEngineCollection.Verify();
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view.Verify();
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}
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[Fact]
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public void ExecuteResultWithExplicitViewObject()
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{
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// Arrange
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ControllerBase controller = new Mock<ControllerBase>().Object;
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HttpContextBase httpContext = CreateHttpContext();
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RouteData routeData = new RouteData();
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routeData.Values["action"] = _viewName;
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ControllerContext context = new ControllerContext(httpContext, routeData, controller);
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Mock<IView> view = new Mock<IView>(MockBehavior.Strict);
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ViewResult result = new ViewResultHelper { View = view.Object };
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view
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.Setup(o => o.Render(It.IsAny<ViewContext>(), httpContext.Response.Output))
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.Callback<ViewContext, TextWriter>(
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(viewContext, writer) =>
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{
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Assert.Same(view.Object, viewContext.View);
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Assert.Same(result.ViewData, viewContext.ViewData);
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Assert.Same(result.TempData, viewContext.TempData);
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Assert.Same(controller, viewContext.Controller);
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});
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// Act
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result.ExecuteResult(context);
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// Assert
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view.Verify();
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}
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[Fact]
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public void ExecuteResultWithNullControllerContextThrows()
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{
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// Arrange
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ViewResult result = new ViewResultHelper();
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// Act & Assert
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Assert.ThrowsArgumentNull(
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() => result.ExecuteResult(null),
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"context");
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}
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[Fact]
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public void MasterNameProperty()
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{
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// Arrange
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ViewResult result = new ViewResult();
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// Act & Assert
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MemberHelper.TestStringProperty(result, "MasterName", String.Empty);
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}
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private static HttpContextBase CreateHttpContext()
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{
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Mock<HttpContextBase> mockHttpContext = new Mock<HttpContextBase>();
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mockHttpContext.Setup(c => c.Response.Output).Returns(TextWriter.Null);
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return mockHttpContext.Object;
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}
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private class ViewResultHelper : ViewResult
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{
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public ViewResultHelper()
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{
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ViewEngineCollection = new ViewEngineCollection(new IViewEngine[] { new WebFormViewEngine() });
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MasterName = _masterName;
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}
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}
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}
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}
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