我正在用一个模块构建一个基本的复合 WPF 外壳。我想对我的模块进行单元测试。显然 Composite WPF 以一种易于单元测试的方式模块化了我的代码。
下面是我想要进行单元测试的代码。它驻留在我的模块的控制器中。请注意标准复合 WPF 实体的使用,例如区域、演示者、模型等。
public void ShowPlantTreeView()
{
IRegion navRegion = this.regionManager.Regions[RegionNames.NavigationRegion];
IPlantTreeView view = navRegion.GetView(typeof(IPlantTreeView).Name) as IPlantTreeView;
if (view == null)
{
view = this.container.Resolve<IPlantTreePresentationModel>().View;
navRegion.Add(view, typeof(IPlantTreeView).Name);
}
view.Model.LastRefreshDateTime = DateTime.Now;
navRegion.Activate(view);
}
这只是我想要单元测试的七行代码。还不错。问题在于它依赖于许多外部组件——RegionManager、View、PresentationModel 等。
为了独立测试这一点,我模拟了外部组件。这些通过使用 Unity 容器的构造函数注入传递到我的控制器中。为了配置它并做一个简单的测试,我的单元测试如下所示......
(看看这个方法的长度!肯定有更好的测试方法?复合WPF真的让我的生活更轻松吗?而且我每次测试都必须这样做?!)
[TestMethod]
public void TestShowPlantTree()
{
//Setup Mocks.
var plantTreePresentationModel = new Mock<IPlantTreePresentationModel>();
var plantTreeViewMock = new Mock<IPlantTreeView>();
var navRegionMock = new Mock<IRegion>();
var plantTreeModuleMock = new Mock<IPlantTreeModule>();
var regionManagerMock = new Mock<IRegionManager>();
var eventAggregatorMock = new Mock<IEventAggregator>();
var shellControllerMock = new Mock<IShellController>();
var plantTreeNodeSelectedEventMock = new Mock<PlantTreeNodeSelectedEvent>();
plantTreeViewMock.Setup(v => v.Model).Returns(plantTreePresentationModel.Object);
container.RegisterInstance<IPlantTreePresentationModel>(plantTreePresentationModel.Object);
regionManagerMock.Setup(o => o.Regions[RegionNames.NavigationRegion]).Returns(navRegionMock.Object);
navRegionMock.Setup(r => r.GetView(typeof(IPlantTreeView).Name)).Returns(plantTreeViewMock.Object);
navRegionMock.Setup(r => r.Activate(plantTreeViewMock.Object));
plantTreePresentationModel.SetupSet(m => m.LastRefreshDateTime);
eventAggregatorMock.Setup(a => a.GetEvent<PlantTreeNodeSelectedEvent>()).Returns(plantTreeNodeSelectedEventMock.Object);
//Setup container.
container.RegisterType<IPlantTreeController, PlantTreeController>();
container.RegisterInstance<IPlantTreePresentationModel>(plantTreePresentationModel.Object);
container.RegisterInstance<IPlantTreeView>(plantTreeViewMock.Object);
container.RegisterInstance<IRegion>(navRegionMock.Object);
container.RegisterInstance<IPlantTreeModule>(plantTreeModuleMock.Object);
container.RegisterInstance<IRegionManager>(regionManagerMock.Object);
container.RegisterInstance<IEventAggregator>(eventAggregatorMock.Object);
container.RegisterInstance<IShellController>(shellControllerMock.Object);
container.RegisterInstance<PlantTreeNodeSelectedEvent>(plantTreeNodeSelectedEventMock.Object);
//Initialize controller to be tested.
IPlantTreeController controllerToTest = container.Resolve<IPlantTreeController>();
controllerToTest.ShowPlantTreeView();
//Test if controller interacted with the mocks as expected.
plantTreePresentationModel.VerifyAll();
regionManagerMock.VerifyAll();
navRegionMock.VerifyAll();
}
有没有更好的方法来测试我的课程?任何意见,将不胜感激。