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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Net.Http;
using System.Web.Http.Controllers;
using System.Web.Http.Dependencies;
using System.Web.Http.Hosting;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Http.Dispatcher
{
public class DefaultHttpControllerActivatorTest
{
// Create tests
[Fact]
public void Create_GuardClauses()
{
// Arrange
var config = new HttpConfiguration();
var request = new HttpRequestMessage();
request.Properties[HttpPropertyKeys.HttpConfigurationKey] = config;
var descriptor = new HttpControllerDescriptor(config, "Simple", typeof(SimpleController));
var activator = new DefaultHttpControllerActivator();
// Act & assert
Assert.ThrowsArgumentNull(() => activator.Create(request: null, controllerDescriptor: descriptor, controllerType: typeof(SimpleController)), "request");
Assert.ThrowsArgumentNull(() => activator.Create(request, controllerDescriptor: null, controllerType: typeof(SimpleController)), "controllerDescriptor");
Assert.ThrowsArgumentNull(() => activator.Create(request, descriptor, controllerType: null), "controllerType");
Assert.Throws<InvalidOperationException>(
() => activator.Create(request, descriptor, typeof(AbstractController)),
"An error occurred when trying to create a controller of type 'AbstractController'. Make sure that the controller has a parameterless public constructor.");
Assert.Throws<InvalidOperationException>(
() => activator.Create(request, descriptor, typeof(ControllerWithCtorParams)),
"An error occurred when trying to create a controller of type 'ControllerWithCtorParams'. Make sure that the controller has a parameterless public constructor.");
}
[Fact]
public void Create_MakesInstanceOfController()
{
// Arrange
var config = new HttpConfiguration();
var request = new HttpRequestMessage();
request.Properties[HttpPropertyKeys.HttpConfigurationKey] = config;
var descriptor = new HttpControllerDescriptor(config, "Simple", typeof(SimpleController));
var activator = new DefaultHttpControllerActivator();
// Act
IHttpController result = activator.Create(request, descriptor, typeof(SimpleController));
// Assert
Assert.NotNull(result);
Assert.IsType<SimpleController>(result);
}
[Fact]
public void Create_UsesControllerFromRequestLevelDependencyScope()
{
// Arrange
var controller = new ControllerWithCtorParams(42);
var mockScope = new Mock<IDependencyScope>();
mockScope.Setup(r => r.GetService(typeof(ControllerWithCtorParams))).Returns(controller).Verifiable();
var config = new HttpConfiguration();
var request = new HttpRequestMessage();
request.Properties[HttpPropertyKeys.HttpConfigurationKey] = config;
request.Properties[HttpPropertyKeys.DependencyScope] = mockScope.Object;
var descriptor = new HttpControllerDescriptor(config, "Name", typeof(ControllerWithCtorParams));
var activator = new DefaultHttpControllerActivator();
// Act
IHttpController result = activator.Create(request, descriptor, typeof(ControllerWithCtorParams));
// Assert
Assert.Same(controller, result);
mockScope.Verify();
}
// Helper classes
abstract class AbstractController : ApiController { }
class SimpleController : ApiController { }
class ControllerWithCtorParams : ApiController
{
public ControllerWithCtorParams(int unused) { }
}
}
}
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