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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Web.Mvc.Async;
using System.Web.Mvc.Async.Test;
using System.Web.Routing;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class AsyncControllerTest
{
[Fact]
public void ActionInvokerProperty()
{
// Arrange
EmptyController controller = new EmptyController();
// Act
IActionInvoker invoker = controller.ActionInvoker;
// Assert
Assert.IsType<AsyncControllerActionInvoker>(invoker);
}
[Fact]
public void AsyncManagerProperty()
{
// Arrange
EmptyController controller = new EmptyController();
// Act
AsyncManager asyncManager = controller.AsyncManager;
// Assert
Assert.NotNull(asyncManager);
}
[Fact]
public void Execute_ThrowsIfCalledMoreThanOnce()
{
// Arrange
IAsyncController controller = new EmptyController();
RequestContext requestContext = GetRequestContext("SomeAction");
// Act & assert
controller.BeginExecute(requestContext, null, null);
Assert.Throws<InvalidOperationException>(
delegate { controller.BeginExecute(requestContext, null, null); },
@"A single instance of controller 'System.Web.Mvc.Test.AsyncControllerTest+EmptyController' cannot be used to handle multiple requests. If a custom controller factory is in use, make sure that it creates a new instance of the controller for each request.");
}
[Fact]
public void Execute_ThrowsIfRequestContextIsNull()
{
// Arrange
IAsyncController controller = new EmptyController();
// Act & assert
Assert.ThrowsArgumentNull(
delegate { controller.BeginExecute(null, null, null); }, "requestContext");
}
[Fact]
public void ExecuteCore_Asynchronous_ActionFound()
{
// Arrange
MockAsyncResult innerAsyncResult = new MockAsyncResult();
Mock<IAsyncActionInvoker> mockActionInvoker = new Mock<IAsyncActionInvoker>();
mockActionInvoker.Setup(o => o.BeginInvokeAction(It.IsAny<ControllerContext>(), "SomeAction", It.IsAny<AsyncCallback>(), It.IsAny<object>())).Returns(innerAsyncResult);
mockActionInvoker.Setup(o => o.EndInvokeAction(innerAsyncResult)).Returns(true);
RequestContext requestContext = GetRequestContext("SomeAction");
EmptyController controller = new EmptyController()
{
ActionInvoker = mockActionInvoker.Object
};
// Act & assert
IAsyncResult outerAsyncResult = ((IAsyncController)controller).BeginExecute(requestContext, null, null);
Assert.False(controller.TempDataSaved);
((IAsyncController)controller).EndExecute(outerAsyncResult);
Assert.True(controller.TempDataSaved);
Assert.False(controller.HandleUnknownActionCalled);
}
[Fact]
public void ExecuteCore_Asynchronous_ActionNotFound()
{
// Arrange
MockAsyncResult innerAsyncResult = new MockAsyncResult();
Mock<IAsyncActionInvoker> mockActionInvoker = new Mock<IAsyncActionInvoker>();
mockActionInvoker.Setup(o => o.BeginInvokeAction(It.IsAny<ControllerContext>(), "SomeAction", It.IsAny<AsyncCallback>(), It.IsAny<object>())).Returns(innerAsyncResult);
mockActionInvoker.Setup(o => o.EndInvokeAction(innerAsyncResult)).Returns(false);
RequestContext requestContext = GetRequestContext("SomeAction");
EmptyController controller = new EmptyController()
{
ActionInvoker = mockActionInvoker.Object
};
// Act & assert
IAsyncResult outerAsyncResult = ((IAsyncController)controller).BeginExecute(requestContext, null, null);
Assert.False(controller.TempDataSaved);
((IAsyncController)controller).EndExecute(outerAsyncResult);
Assert.True(controller.TempDataSaved);
Assert.True(controller.HandleUnknownActionCalled);
}
[Fact]
public void ExecuteCore_Synchronous_ActionFound()
{
// Arrange
MockAsyncResult innerAsyncResult = new MockAsyncResult();
Mock<IActionInvoker> mockActionInvoker = new Mock<IActionInvoker>();
mockActionInvoker.Setup(o => o.InvokeAction(It.IsAny<ControllerContext>(), "SomeAction")).Returns(true);
RequestContext requestContext = GetRequestContext("SomeAction");
EmptyController controller = new EmptyController()
{
ActionInvoker = mockActionInvoker.Object
};
// Act & assert
IAsyncResult outerAsyncResult = ((IAsyncController)controller).BeginExecute(requestContext, null, null);
Assert.False(controller.TempDataSaved);
((IAsyncController)controller).EndExecute(outerAsyncResult);
Assert.True(controller.TempDataSaved);
Assert.False(controller.HandleUnknownActionCalled);
}
[Fact]
public void ExecuteCore_Synchronous_ActionNotFound()
{
// Arrange
MockAsyncResult innerAsyncResult = new MockAsyncResult();
Mock<IActionInvoker> mockActionInvoker = new Mock<IActionInvoker>();
mockActionInvoker.Setup(o => o.InvokeAction(It.IsAny<ControllerContext>(), "SomeAction")).Returns(false);
RequestContext requestContext = GetRequestContext("SomeAction");
EmptyController controller = new EmptyController()
{
ActionInvoker = mockActionInvoker.Object
};
// Act & assert
IAsyncResult outerAsyncResult = ((IAsyncController)controller).BeginExecute(requestContext, null, null);
Assert.False(controller.TempDataSaved);
((IAsyncController)controller).EndExecute(outerAsyncResult);
Assert.True(controller.TempDataSaved);
Assert.True(controller.HandleUnknownActionCalled);
}
[Fact]
public void ExecuteCore_SavesTempDataOnException()
{
// Arrange
Mock<IAsyncActionInvoker> mockActionInvoker = new Mock<IAsyncActionInvoker>();
mockActionInvoker
.Setup(o => o.BeginInvokeAction(It.IsAny<ControllerContext>(), "SomeAction", It.IsAny<AsyncCallback>(), It.IsAny<object>()))
.Throws(new Exception("Some exception text."));
RequestContext requestContext = GetRequestContext("SomeAction");
EmptyController controller = new EmptyController()
{
ActionInvoker = mockActionInvoker.Object
};
// Act & assert
Assert.Throws<Exception>(
delegate { ((IAsyncController)controller).BeginExecute(requestContext, null, null); },
@"Some exception text.");
Assert.True(controller.TempDataSaved);
}
[Fact]
public void CreateActionInvokerCallsIntoResolverInstance()
{
// Controller uses an IDependencyResolver to create an IActionInvoker.
var controller = new EmptyController();
Mock<IDependencyResolver> resolverMock = new Mock<IDependencyResolver>();
Mock<IAsyncActionInvoker> actionInvokerMock = new Mock<IAsyncActionInvoker>();
resolverMock.Setup(r => r.GetService(typeof(IAsyncActionInvoker))).Returns(actionInvokerMock.Object);
controller.Resolver = resolverMock.Object;
var ai = controller.CreateActionInvoker();
resolverMock.Verify(r => r.GetService(typeof(IAsyncActionInvoker)), Times.Once());
Assert.Same(actionInvokerMock.Object, ai);
}
[Fact]
public void CreateActionInvokerCallsIntoResolverInstanceAndCreatesANewOneIfNecessary()
{
// If IDependencyResolver is set, but empty, falls back and still creates.
var controller = new EmptyController();
Mock<IDependencyResolver> resolverMock = new Mock<IDependencyResolver>();
resolverMock.Setup(r => r.GetService(typeof(IAsyncActionInvoker))).Returns(null);
resolverMock.Setup(r => r.GetService(typeof(IActionInvoker))).Returns(null);
controller.Resolver = resolverMock.Object;
var ai = controller.CreateActionInvoker();
resolverMock.Verify(r => r.GetService(typeof(IAsyncActionInvoker)), Times.Once());
resolverMock.Verify(r => r.GetService(typeof(IActionInvoker)), Times.Once());
Assert.NotNull(ai);
}
private static RequestContext GetRequestContext(string actionName)
{
Mock<HttpContextBase> mockHttpContext = new Mock<HttpContextBase>();
RouteData routeData = new RouteData();
routeData.Values["action"] = actionName;
return new RequestContext(mockHttpContext.Object, routeData);
}
private class EmptyController : AsyncController
{
public bool TempDataSaved;
public bool HandleUnknownActionCalled;
protected override ITempDataProvider CreateTempDataProvider()
{
return new DummyTempDataProvider();
}
protected override void HandleUnknownAction(string actionName)
{
HandleUnknownActionCalled = true;
}
// Test can expose protected method as public.
public new IActionInvoker CreateActionInvoker()
{
return base.CreateActionInvoker();
}
private class DummyTempDataProvider : ITempDataProvider
{
public IDictionary<string, object> LoadTempData(ControllerContext controllerContext)
{
return new TempDataDictionary();
}
public void SaveTempData(ControllerContext controllerContext, IDictionary<string, object> values)
{
((EmptyController)controllerContext.Controller).TempDataSaved = true;
}
}
}
}
}
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