.NET CORE MVC ViewComponent xUnit 测试
.NET CORE MVC ViewComponent xUnit Testing
我已经开始将 xUnit 用于示例 .NET CORE MVC 项目,我正在努力向 ViewComponent
添加测试,其中包括 IOptions
和 IHostingEnvironment
。这是一个简单的视图组件,returns 值来自 appsettings.json 文件,它本身可以正常工作。
appsettings.json 片段:
"Application": {"Name": "My App","Version": "1.0.0","Author": "John Doe", "Description": "Just a template!"}
视图组件:
[ViewComponent(Name = "Footer")]
public class FooterViewComponent : ViewComponent
{
private readonly IOptions<AppSettings.Application> _app;
private readonly IHostingEnvironment _env;
public FooterViewComponent(IOptions<AppSettings.Application> app, IHostingEnvironment env)
{
_app = app;
_env = env;
}
public IViewComponentResult Invoke()
{
var vm = new FooterViewModel();
{
vm.AppName = _app.Value.Name;
vm.AppVersion = _app.Value.Version;
vm.AppEnvironment = _env.EnvironmentName;
}
return View(vm);
}
}
我想测试 return 类型是 ViewComponent
结果并且视图模型不为空。
ViewComponent 测试:
public class FooterViewComponentTest
{
public class Should
{
[Fact]
public void ReturnViewCompnentWithViewModel()
{
// Arrange
var viewComp = new FooterViewComponent(??????????);
// Act
var result = viewComp ??????????;
// Assert
Assert.IsType<ViewComponentResult>(result);
}
}
}
我仍在努力解决这个问题,并将根据我的发现编辑我的片段。有人有什么建议吗?我应该用这种格式编写测试吗?
使用众所周知的 Moq 框架,您可以编写依赖抽象的模拟对象并将它们注入组件的构造函数中,如下所示:
public class FooterViewComponentTest
{
public class Should
{
[Fact]
public void ReturnViewCompnentWithViewModel()
{
// Arrange
var appSettings = new AppSettings.Application();
appSettings.AppName = "app";
appSettings.Version = "1.0";
var optionsMock = new Mock<IOptions<AppSettings.Application>>();
optionsMock.Setup(o => o.Value).Returns(appSettings);
var hostingMock = new Mock<IHostingEnvironment>();
hostingMock.Setup(h => h.Environment).Returns("Test");
var viewComp = new FooterViewComponent(optionsMock.Object, hostingMock.Object);
// Act
var result = viewComp.Invoke();
// Assert
Assert.IsType<ViewComponentResult>(result);
}
}
}
参考 Moq Quickstart 以更好地了解如何使用模拟框架。
我已经开始将 xUnit 用于示例 .NET CORE MVC 项目,我正在努力向 ViewComponent
添加测试,其中包括 IOptions
和 IHostingEnvironment
。这是一个简单的视图组件,returns 值来自 appsettings.json 文件,它本身可以正常工作。
appsettings.json 片段:
"Application": {"Name": "My App","Version": "1.0.0","Author": "John Doe", "Description": "Just a template!"}
视图组件:
[ViewComponent(Name = "Footer")]
public class FooterViewComponent : ViewComponent
{
private readonly IOptions<AppSettings.Application> _app;
private readonly IHostingEnvironment _env;
public FooterViewComponent(IOptions<AppSettings.Application> app, IHostingEnvironment env)
{
_app = app;
_env = env;
}
public IViewComponentResult Invoke()
{
var vm = new FooterViewModel();
{
vm.AppName = _app.Value.Name;
vm.AppVersion = _app.Value.Version;
vm.AppEnvironment = _env.EnvironmentName;
}
return View(vm);
}
}
我想测试 return 类型是 ViewComponent
结果并且视图模型不为空。
ViewComponent 测试:
public class FooterViewComponentTest
{
public class Should
{
[Fact]
public void ReturnViewCompnentWithViewModel()
{
// Arrange
var viewComp = new FooterViewComponent(??????????);
// Act
var result = viewComp ??????????;
// Assert
Assert.IsType<ViewComponentResult>(result);
}
}
}
我仍在努力解决这个问题,并将根据我的发现编辑我的片段。有人有什么建议吗?我应该用这种格式编写测试吗?
使用众所周知的 Moq 框架,您可以编写依赖抽象的模拟对象并将它们注入组件的构造函数中,如下所示:
public class FooterViewComponentTest
{
public class Should
{
[Fact]
public void ReturnViewCompnentWithViewModel()
{
// Arrange
var appSettings = new AppSettings.Application();
appSettings.AppName = "app";
appSettings.Version = "1.0";
var optionsMock = new Mock<IOptions<AppSettings.Application>>();
optionsMock.Setup(o => o.Value).Returns(appSettings);
var hostingMock = new Mock<IHostingEnvironment>();
hostingMock.Setup(h => h.Environment).Returns("Test");
var viewComp = new FooterViewComponent(optionsMock.Object, hostingMock.Object);
// Act
var result = viewComp.Invoke();
// Assert
Assert.IsType<ViewComponentResult>(result);
}
}
}
参考 Moq Quickstart 以更好地了解如何使用模拟框架。