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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Linq;
using System.Web.Routing;
using System.Web.TestUtil;
using Microsoft.Web.UnitTestUtil;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class ControllerBaseTest
{
[Fact]
public void ExecuteCallsControllerBaseExecute()
{
// Arrange
RequestContext requestContext = new RequestContext(HttpContextHelpers.GetMockHttpContext().Object, new RouteData());
Mock<ControllerBaseHelper> mockController = new Mock<ControllerBaseHelper>() { CallBase = true };
mockController.Setup(c => c.PublicInitialize(requestContext)).Verifiable();
mockController.Setup(c => c.PublicExecuteCore()).Verifiable();
IController controller = mockController.Object;
// Act
controller.Execute(requestContext);
// Assert
mockController.Verify();
}
[Fact]
public void ExecuteThrowsIfCalledTwice()
{
// Arrange
EmptyControllerBase controller = new EmptyControllerBase();
RequestContext requestContext = new RequestContext(HttpContextHelpers.GetMockHttpContext().Object, new RouteData());
// Act
((IController)controller).Execute(requestContext); // first call
Assert.Throws<InvalidOperationException>(
delegate
{
((IController)controller).Execute(requestContext); // second call
},
@"A single instance of controller 'System.Web.Mvc.Test.ControllerBaseTest+EmptyControllerBase' 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.");
// Assert
Assert.Equal(1, controller.NumTimesExecuteCoreCalled);
}
[Fact]
public void ExecuteThrowsIfRequestContextIsNull()
{
// Arrange
IController controller = new ControllerBaseHelper();
// Act & Assert
Assert.ThrowsArgumentNull(
delegate { controller.Execute(null); }, "requestContext");
}
[Fact]
public void ExecuteThrowsIfRequestContextHttpContextIsNull()
{
//Arrange
IController controller = new ControllerBaseHelper();
//Act & Assert
Assert.Throws<ArgumentException>(
delegate { controller.Execute(new Mock<RequestContext>().Object); }, "Cannot execute Controller with a null HttpContext.\r\nParameter name: requestContext");
}
[Fact]
public void InitializeSetsControllerContext()
{
// Arrange
ControllerBaseHelper helper = new ControllerBaseHelper();
RequestContext requestContext = new RequestContext(new Mock<HttpContextBase>().Object, new RouteData());
// Act
helper.PublicInitialize(requestContext);
// Assert
Assert.Same(requestContext.HttpContext, helper.ControllerContext.HttpContext);
Assert.Same(requestContext.RouteData, helper.ControllerContext.RouteData);
Assert.Same(helper, helper.ControllerContext.Controller);
}
[Fact]
public void TempDataProperty()
{
// Arrange
ControllerBase controller = new ControllerBaseHelper();
// Act & Assert
MemberHelper.TestPropertyWithDefaultInstance(controller, "TempData", new TempDataDictionary());
}
[Fact]
public void TempDataReturnsParentTempDataWhenInChildRequest()
{
// Arrange
TempDataDictionary tempData = new TempDataDictionary();
ViewContext viewContext = new ViewContext { TempData = tempData };
RouteData routeData = new RouteData();
routeData.DataTokens[ControllerContext.ParentActionViewContextToken] = viewContext;
RequestContext requestContext = new RequestContext(new Mock<HttpContextBase>().Object, routeData);
ControllerBaseHelper controller = new ControllerBaseHelper();
controller.PublicInitialize(requestContext);
// Act
TempDataDictionary result = controller.TempData;
// Assert
Assert.Same(result, tempData);
}
[Fact]
public void ValidateRequestProperty()
{
// Arrange
ControllerBase controller = new ControllerBaseHelper();
// Act & assert
MemberHelper.TestBooleanProperty(controller, "ValidateRequest", true /* initialValue */, false /* testDefaultValue */);
}
[Fact]
public void ValueProviderProperty()
{
// Arrange
ControllerBase controller = new ControllerBaseHelper();
IValueProvider valueProvider = new SimpleValueProvider();
// Act & assert
ValueProviderFactory[] originalFactories = ValueProviderFactories.Factories.ToArray();
try
{
ValueProviderFactories.Factories.Clear();
MemberHelper.TestPropertyWithDefaultInstance(controller, "ValueProvider", valueProvider);
}
finally
{
foreach (ValueProviderFactory factory in originalFactories)
{
ValueProviderFactories.Factories.Add(factory);
}
}
}
[Fact]
public void ViewDataProperty()
{
// Arrange
ControllerBase controller = new ControllerBaseHelper();
// Act & Assert
MemberHelper.TestPropertyWithDefaultInstance(controller, "ViewData", new ViewDataDictionary());
}
[Fact]
public void ViewBagProperty_ReflectsViewData()
{
// Arrange
ControllerBase controller = new ControllerBaseHelper();
controller.ViewData["A"] = 1;
// Act & Assert
Assert.NotNull(controller.ViewBag);
Assert.Equal(1, controller.ViewBag.A);
}
[Fact]
public void ViewBagProperty_ReflectsNewViewDataInstance()
{
// Arrange
ControllerBase controller = new ControllerBaseHelper();
controller.ViewData["A"] = 1;
controller.ViewData = new ViewDataDictionary() { { "A", "bar" } };
// Act & Assert
Assert.Equal("bar", controller.ViewBag.A);
}
[Fact]
public void ViewBag_PropagatesChangesToViewData()
{
// Arrange
ControllerBase controller = new ControllerBaseHelper();
controller.ViewData["A"] = 1;
// Act
controller.ViewBag.A = "foo";
controller.ViewBag.B = 2;
// Assert
Assert.Equal("foo", controller.ViewData["A"]);
Assert.Equal(2, controller.ViewData["B"]);
}
public class ControllerBaseHelper : ControllerBase
{
protected override void Initialize(RequestContext requestContext)
{
PublicInitialize(requestContext);
}
public virtual void PublicInitialize(RequestContext requestContext)
{
base.Initialize(requestContext);
}
protected override void ExecuteCore()
{
PublicExecuteCore();
}
public virtual void PublicExecuteCore()
{
throw new NotImplementedException();
}
}
private class EmptyControllerBase : ControllerBase
{
public int NumTimesExecuteCoreCalled = 0;
protected override void ExecuteCore()
{
NumTimesExecuteCoreCalled++;
}
}
}
}
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