SBT清理钩子在测试中

Question

SBT has a nice hook which allows you to execute arbitrary code after all tests are run:

testOptions in Test += Tests.Cleanup( () => println("Cleanup"))

That works. My question is: I want to do some actual cleanup (stopping some services for example) but I can't import any dependencies which I've declared in the same build file. Is there any way to do this? I guess I need to put these on the sbt classpath or something, but I can't seem to find this in the docs.

PS I might be doing this in the wrong location, is there a better place to shutdown things after all tests are run?)

Answer 1

Complementing venechka's answer: I'm running integration tests using Specs2, and in specs there is no way of knowing when all tests have run. So I solved it pretty much the way venechka and you yourself already indicated, by loading a class from the project that does the cleanup when it's initialized:

testOptions in IntegrationTest += Tests.Cleanup( (loader: java.lang.ClassLoader) => {
  loader.loadClass("com.mypackage.IntegrationTestCleanup").newInstance
} )

Answer 2

You can't use the classes that are added with libraryDependencies in project (you can add libraryDependencies in project/project, but I wouldn't recommend adding in 2 places). Instead you can invoke a cleanup method that is in your project's sources, and that has access to the declared library dependencies.