I am writing a JUnit test case for a DSL, and I need to ensure that the method under test does never end (as in this question).
The provided solution is fine, but I would like to use the "new" Executor interface (Java 5.0 onwards):
@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
}
How can I translate the above code from the "old" Thread
/Runnable
interface to the "new" ExecutorService
/Executor
interface?
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
}