package org.stagemonitor.core.util; import java.util.concurrent.RejectedExecutionException; import java.util.concurrent.ThreadPoolExecutor; import org.junit.Test; public class ExecutorUtilsTest { final ThreadPoolExecutor lowCapacityPool = ExecutorUtils.createSingleThreadDeamonPool("test-pool", 1); private Runnable sleepABit = new Runnable() { @Override public void run() { try { Thread.sleep(10); } catch (InterruptedException e) { e.printStackTrace(); } } }; @Test(expected = RejectedExecutionException.class) public void testRejectedExecution() throws Exception { for (int i = 0; i < 10; i++) { lowCapacityPool.submit(sleepABit); } } }