Question

我正在为DSL编写JUnit测试用例，我需要确保测试中的方法永远不会结束（如this question中所示）。

provided solution很好，但我想使用“new”Executor interface（Java 5.0以后）：

@Test
public void methodDoesNotReturnFor5Seconds() throws Exception {
  Thread t = new Thread(new Runnable() {
    public void run() {
      methodUnderTest();
    }
  });
  t.start();
  t.join(5000);
  assertTrue(t.isAlive());
  // possibly do something to shut down methodUnderTest
}

如何将上述代码从“旧”Thread / Runnable界面翻译为“新”ExecutorService / Executor界面？

Answer 1

Future<?> future = Executors.newSingleThreadExecutor().submit(new Runnable() {
    public void run() {
        methodUnderTest();
    } 
});
try {
    future.get(5, TimeUnit.SECONDS);
    fail("The task has completed before 5 seconds");
}
catch (TimeoutException e) {
    // expected
}

java.util.concurrent：从Runnable到Executor接口的转换

1 个答案: