scala - 如果失败，如何仅显示 Scalatest 测试的标准输出

Question

与 junit-interface运行者，有这个方便的选择:

-q Suppress stdout for successful tests. Stderr is printed to the console normally. Stdout is written to a buffer and discarded when a test succeeds. If it fails, the buffer is dumped to the console. Since stdio redirection in Java is a bad kludge (System.setOut() changes the static final field System.out through native code) this may not work for all scenarios. Scala has its own console with a sane redirection feature. If Scala is detected on the class path, junit-interface tries to reroute scala.Console's stdout, too.

我想知道是否有一种简单的方法可以让 scalatest 做同样的事情。我可以尝试自己重定向输出，但如果可能的话，我更愿意使用标准的东西。

Answer 1

根据这个info在 ScalaTest 网站上，您可以设置一些标志来抑制某些消息:

如果您在 build.sbt 中添加这样的行，您的记录器将不会在标准输出中显示成功的测试:
testOptions in Test += Tests.Argument(TestFrameworks.ScalaTest, "-oN")