Sometimes you may wish to execute some code before any tests are run at all or after all the tests are completed (whether successful or not). This can be achieved through the use of the ProjectConfig abstract class. To use this, simply create an object that will extend from this abstract class and ensure it is on the class path. Then, KotlinTest will automatically find it and invoke it:

    object MyProjectConfig : ProjectConfig() { 
      var server: HttpServer? = null 
      override fun beforeAll() { 
        val addr = InetSocketAddress(8080) 
        val server = HttpServer.create(addr, 0) 
        server.executor = Executors.newCachedThreadPool() 
        server.start() 
        println("Server is listening on port 8080") 
      } 
      override fun afterAll() { 
        server!!.stop(0) 
      } 
    } 

In this case, we've made a ProjectConfig instance that creates an embedded HTTP server so that all the...