c# - 在单元测试中设置IHostingEnvironment

我目前正在将项目从.NET Core RC1升级到新的RTM 1.0版本。在RC1中，有一个IApplicationEnvironment，在1.0版中被IHostingEnvironment取代

在RC1中，我可以这样做

public class MyClass
{
    protected static IApplicationEnvironment ApplicationEnvironment { get;private set; }

    public MyClass()
    {
        ApplicationEnvironment = PlatformServices.Default.Application;
    }
}

有谁知道如何在v1.0中实现这一目标？

public class MyClass
{
    protected static IHostingEnvironment HostingEnvironment { get;private set; }

    public MyClass()
    {
        HostingEnvironment = ???????????;
    }
}

最佳答案

您可以根据需要使用模拟框架模拟IHostEnvironment，也可以通过实现接口(interface)来创建伪造的版本。

像这样上课...

public class MyClass {
    protected IHostingEnvironment HostingEnvironment { get;private set; }

    public MyClass(IHostingEnvironment host) {
        HostingEnvironment = host;
    }
}

您可以使用Moq设置单元测试示例。

public void TestMyClass() {
    //Arrange
    var mockEnvironment = new Mock<IHostingEnvironment>();
    //...Setup the mock as needed
    mockEnvironment
        .Setup(m => m.EnvironmentName)
        .Returns("Hosting:UnitTestEnvironment");
    //...other setup for mocked IHostingEnvironment...

    //create your SUT and pass dependencies
    var sut = new MyClass(mockEnvironment.Object);

    //Act
    //...call you SUT

    //Assert
    //...assert expectations
}