private void printThreadStatus(Thread thread) {
StackTraceElement[] frames = thread.getStackTrace();
System.err.println(thread.getName() + ": " + thread.getState());
for (StackTraceElement frame : frames) {
System.err.println(frame);
}
System.err.println();
}
@Test
public void execute_shouldCreateAndStartAThreadWithTheProvidedRunnableAndReturnAFuture()
throws Exception {
CountDownLatch latch = new CountDownLatch(1);
Future<?> result = asyncExecutor.execute(latch::countDown);
latch.await(5, TimeUnit.SECONDS); // give the new thread time to start to running
verify(factory).newThread(any()); // The provided runnable will be wrapped, not passed directly
assertEquals(0, latch.getCount()); // but the runnable will be executed
assertNotNull(result);
assertNotNull(createdThread);
assertNotEquals(Thread.State.NEW, createdThread.getState());
}
public void mockAll() {
mockedConfigurationUpdateThread = mock(Thread.class);
when(mockedConfigurationUpdateThread.getState()).thenReturn(Thread.State.TERMINATED);
eventManager = mock(EventService.class);
when(powerApiServletContext.eventService()).thenReturn(eventManager);
threadManager = mock(ThreadingService.class);
when(threadManager.newThread(any(Runnable.class), anyString()))
.thenReturn(mockedConfigurationUpdateThread);
when(powerApiServletContext.threadingService()).thenReturn(threadManager);
// Setup our context with the mocks
when(context.getAttribute(ServletContextHelper.SERVLET_CONTEXT_ATTRIBUTE_NAME))
.thenReturn(powerApiServletContext);
when(context.getInitParameter(InitParameter.POWER_API_CONFIG_DIR.getParameterName()))
.thenReturn("/etc/powerapi");
}
