在TestNG中测试多线程代码

Question

I have this problem:

@Test
public void foo() throws Exception {
    ScheduledThreadPoolExecutor stpe = new ScheduledThreadPoolExecutor(1);
    stpe.submit(new Runnable() {
        @Override
        public void run() {
             // does not make this unit test fail :(
             Assert.AssertEquals(1, 2);
       }
    });
}

How do I get those exceptions to fail my test?

Answer 1

The submit() method returns a Future<?> . If you try to get the result of the Future, the method will throw the Throwable that has been thrown inside the Runnable :

Future<?> future = stpe.submit( .... 

future.get(); // this call will throw the exception that has been thrown in the Runnable.

This way, exceptions/errors in the run method will make the test fail.