单元测试浏览器不会显示为城域应用异步单元测试 [英] Unit Test Explorer does not show up Async Unit Tests for metro apps
问题描述
不知道这是一个已知的问题。我使用VS2012 RC(旗舰版),以及Win8的版本preVIEW。我创建了一个单元测试库(Metro风格应用),并写了单元测试,其中包括异步/等待关键字。然而,当我编译单元测试项目,单元测试资源管理器中不显示我写的测试。如果我排除异步/等待的关键字,那么单元测试Explorer在我刚写的测试显示出来。有没有人用这个遇到过,或者是它只是我吗?
[识别TestClass]
公共类UnitTest1
{
[测试方法]
公共异步无效SomeAsyncTest()
{
VAR的结果=等待StorageFile.GetFileFromPathAsync(一些文件路径);
}
}
单元测试方法被异步
必须返回任务
,而不是无效
。
这是因为异步无效
方法是很难追踪:没有为单元测试库,找出该测试已完成没有简单的方法。 (这很难,但我认为这不是不可能的。你可以通过使用自定义的SynchronizationContext
做到这一点。)
Not sure this is a known issue. I’m using VS2012 RC (Ultimate), and Win8 Release Preview. I have created a Unit Test Library (metro style app), and wrote a Unit Test, which include async/await keywords. However when I compile the Unit Test project, Unit Test Explorer does not show up the Test I wrote. If I exclude the async/await keywords, then the Unit Test Explorer shows up in the Test I just wrote. Has anyone come across with this before, or is it just me?
[TestClass]
public class UnitTest1
{
[TestMethod]
public async void SomeAsyncTest()
{
var result = await StorageFile.GetFileFromPathAsync("some file path");
}
}
Unit test methods that are async
have to return Task
, not void
.
That's because async void
methods are hard to track: there is no easy way for the unit testing library to find out that the test completed. (It's hard, but I think it's not impossible. You could do this by using a custom SynchronizationContext
.)
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