package org.junit.runner;
   
   import org.junit.runner.notification.RunNotifier;
   import org.junit.runners.model.RunnerBuilder;
   
   public class RunnerSpy extends Runner {
       public static final Description DESCRIPTION = Description.TEST_MECHANISM;
   
       private RunnerBuilder invokedRunnerBuilder;
      private Class invokedTestClass;
  
      public RunnerSpy(Class testClass) {
          invokedTestClass = testClass;
      }
  
      public RunnerSpy(Class testClass, RunnerBuilder runnerBuilder) {
          invokedTestClass = testClass;
          invokedRunnerBuilder = runnerBuilder;
      }
  
      @Override
      public Description getDescription() {
          return DESCRIPTION;
      }
  
      @Override
      public void run(RunNotifier runNotifier) {
      }
  
      public RunnerBuilder getInvokedRunnerBuilder() {
          return invokedRunnerBuilder;
      }
  
      public Class getInvokedTestClass() {
          return invokedTestClass;
      }
  }