With the asyncEcho test, it wraps the asserts in a try/catch, and any errors are passed back to the DOH through the deferred.errback(error) call.

对于asyncEcho测试，它将断言包装进一个try/catch 程序块，并且，任何错误都将通过 deferred.errback(error) 调用被传递回DOH。

youdao

With the asyncEcho test, it wraps the asserts in a try/catch, and any errors are passed back to the DOH through the deferred.errback(error) call.

对于asyncEcho测试，它将断言包装进一个try/catch 程序块，并且，任何错误都将通过 deferred.errback(error) 调用被传递回DOH。

youdao