c# - `Assert.That` 属性有什么用？

Question

有人知道这个Assert.That 属性是做什么用的吗？ Assert 的所有成员都是静态的，那么获取实例有什么意义呢？

我知道 NUnit 有一个方法 Assert.That 用于 hamcrest 匹配器，但属性似乎没有意义。也许此属性用于自定义断言作为 Assert 上的扩展方法？

Answer 1

Assert.That Property

获取断言功能的单例实例。

Users can use this to plug-in custom assertions through C# extension methods. For instance, the signature of a custom assertion provider could be "public static void IsOfType(this Assert assert, object obj)" Users could then use a syntax similar to the default assertions which in this case is "Assert.That.IsOfType<Dog>(animal);"

More documentation is at https://github.com/Microsoft/testfx-docs.