threadpoolexecutortest.java

来自「SRI international 发布的OAA框架软件」· Java 代码 · 共 1,573 行 · 第 1/4 页

    /**
     *  executor using DiscardPolicy drops task if saturated.
     */
    public void testSaturatedExecute3() {
        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(1), h);
        try {

            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
            for(int i = 0; i < 5; ++i){
                tasks[i] = new TrackedNoOpRunnable();
            }
            p.execute(new TrackedLongRunnable());
            for(int i = 0; i < 5; ++i){
                p.execute(tasks[i]);
            }
            for(int i = 0; i < 5; ++i){
                assertFalse(tasks[i].done);
            }
            try { p.shutdownNow(); } catch(SecurityException ok) { return; }
        } catch(RejectedExecutionException ex){
            unexpectedException();
        } finally {
            joinPool(p);
        }
    }

    /**
     *  executor using DiscardOldestPolicy drops oldest task if saturated.
     */
    public void testSaturatedExecute4() {
        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(1), h);
        try {
            p.execute(new TrackedLongRunnable());
            TrackedLongRunnable r2 = new TrackedLongRunnable();
            p.execute(r2);
            assertTrue(p.getQueue().contains(r2));
            TrackedNoOpRunnable r3 = new TrackedNoOpRunnable();
            p.execute(r3);
            assertFalse(p.getQueue().contains(r2));
            assertTrue(p.getQueue().contains(r3));
            try { p.shutdownNow(); } catch(SecurityException ok) { return; }
        } catch(RejectedExecutionException ex){
            unexpectedException();
        } finally {
            joinPool(p);
        }
    }

    /**
     *  execute throws RejectedExecutionException if shutdown
     */
    public void testRejectedExecutionExceptionOnShutdown() {
        ThreadPoolExecutor tpe =
            new ThreadPoolExecutor(1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue(1));
        try { tpe.shutdown(); } catch(SecurityException ok) { return; }
	try {
	    tpe.execute(new NoOpRunnable());
	    shouldThrow();
	} catch(RejectedExecutionException success){}

	joinPool(tpe);
    }

    /**
     *  execute using CallerRunsPolicy drops task on shutdown
     */
    public void testCallerRunsOnShutdown() {
        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(1), h);

        try { p.shutdown(); } catch(SecurityException ok) { return; }
	try {
            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
	    p.execute(r);
            assertFalse(r.done);
	} catch(RejectedExecutionException success){
            unexpectedException();
        } finally {
            joinPool(p);
        }
    }

    /**
     *  execute using DiscardPolicy drops task on shutdown
     */
    public void testDiscardOnShutdown() {
        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(1), h);

        try { p.shutdown(); } catch(SecurityException ok) { return; }
	try {
            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
	    p.execute(r);
            assertFalse(r.done);
	} catch(RejectedExecutionException success){
            unexpectedException();
        } finally {
            joinPool(p);
        }
    }


    /**
     *  execute using DiscardOldestPolicy drops task on shutdown
     */
    public void testDiscardOldestOnShutdown() {
        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(1), h);

        try { p.shutdown(); } catch(SecurityException ok) { return; }
	try {
            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
	    p.execute(r);
            assertFalse(r.done);
	} catch(RejectedExecutionException success){
            unexpectedException();
        } finally {
            joinPool(p);
        }
    }


    /**
     *  execute (null) throws NPE
     */
    public void testExecuteNull() {
        ThreadPoolExecutor tpe = null;
        try {
	    tpe = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue(10));
	    tpe.execute(null);
            shouldThrow();
	} catch(NullPointerException success){}

	joinPool(tpe);
    }

    /**
     *  setCorePoolSize of negative value throws IllegalArgumentException
     */
    public void testCorePoolSizeIllegalArgumentException() {
	ThreadPoolExecutor tpe = null;
	try {
	    tpe = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue(10));
	} catch(Exception e){}
	try {
	    tpe.setCorePoolSize(-1);
	    shouldThrow();
	} catch(IllegalArgumentException success){
        } finally {
            try { tpe.shutdown(); } catch(SecurityException ok) { return; }
        }
        joinPool(tpe);
    }

    /**
     *  setMaximumPoolSize(int) throws IllegalArgumentException if
     *  given a value less the core pool size
     */
    public void testMaximumPoolSizeIllegalArgumentException() {
        ThreadPoolExecutor tpe = null;
        try {
            tpe = new ThreadPoolExecutor(2,3,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue(10));
        } catch(Exception e){}
        try {
            tpe.setMaximumPoolSize(1);
            shouldThrow();
        } catch(IllegalArgumentException success){
        } finally {
            try { tpe.shutdown(); } catch(SecurityException ok) { return; }
        }
        joinPool(tpe);
    }

    /**
     *  setMaximumPoolSize throws IllegalArgumentException
     *  if given a negative value
     */
    public void testMaximumPoolSizeIllegalArgumentException2() {
        ThreadPoolExecutor tpe = null;
        try {
            tpe = new ThreadPoolExecutor(2,3,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue(10));
        } catch(Exception e){}
        try {
            tpe.setMaximumPoolSize(-1);
            shouldThrow();
        } catch(IllegalArgumentException success){
        } finally {
            try { tpe.shutdown(); } catch(SecurityException ok) { return; }
        }
        joinPool(tpe);
    }


    /**
     *  setKeepAliveTime  throws IllegalArgumentException
     *  when given a negative value
     */
    public void testKeepAliveTimeIllegalArgumentException() {
	ThreadPoolExecutor tpe = null;
        try {
            tpe = new ThreadPoolExecutor(2,3,LONG_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue(10));
        } catch(Exception e){}

	try {
            tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
            shouldThrow();
        } catch(IllegalArgumentException success){
        } finally {
            try { tpe.shutdown(); } catch(SecurityException ok) { return; }
        }
        joinPool(tpe);
    }

    /**
     * terminated() is called on termination
     */
    public void testTerminated() {
        ExtendedTPE tpe = new ExtendedTPE();
        try { tpe.shutdown(); } catch(SecurityException ok) { return; }
        assertTrue(tpe.terminatedCalled);
        joinPool(tpe);
    }

    /**
     * beforeExecute and afterExecute are called when executing task
     */
    public void testBeforeAfter() {
        ExtendedTPE tpe = new ExtendedTPE();
        try {
            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
            tpe.execute(r);
            Thread.sleep(SHORT_DELAY_MS);
            assertTrue(r.done);
            assertTrue(tpe.beforeCalled);
            assertTrue(tpe.afterCalled);
            try { tpe.shutdown(); } catch(SecurityException ok) { return; }
        }
        catch(Exception ex) {
            unexpectedException();
        } finally {
            joinPool(tpe);
        }
    }

    /**
     * completed submit of callable returns result
     */
    public void testSubmitCallable() {
        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(10));
        try {
            Future future = e.submit(new StringTask());
            String result = (String)future.get();
            assertSame(TEST_STRING, result);
        }
        catch (ExecutionException ex) {
            unexpectedException();
        }
        catch (InterruptedException ex) {
            unexpectedException();
        } finally {
            joinPool(e);
        }
    }

    /**
     * completed submit of runnable returns successfully
     */
    public void testSubmitRunnable() {
        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(10));
        try {
            Future future = e.submit(new NoOpRunnable());
            future.get();
            assertTrue(future.isDone());
        }
        catch (ExecutionException ex) {
            unexpectedException();
        }
        catch (InterruptedException ex) {
            unexpectedException();
        } finally {
            joinPool(e);
        }
    }

    /**
     * completed submit of (runnable, result) returns result
     */
    public void testSubmitRunnable2() {
        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(10));
        try {
            Future future = e.submit(new NoOpRunnable(), TEST_STRING);
            String result = (String)future.get();
            assertSame(TEST_STRING, result);
        }
        catch (ExecutionException ex) {
            unexpectedException();
        }
        catch (InterruptedException ex) {
            unexpectedException();
        } finally {
            joinPool(e);
        }
    }





    /**
     * invokeAny(null) throws NPE
     */
    public void testInvokeAny1() {
        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(10));
        try {
            e.invokeAny(null);
        } catch (NullPointerException success) {
        } catch(Exception ex) {
            unexpectedException();
        } finally {
            joinPool(e);
        }
    }

    /**
     * invokeAny(empty collection) throws IAE
     */
    public void testInvokeAny2() {
        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(10));
        try {
            e.invokeAny(new ArrayList());
        } catch (IllegalArgumentException success) {
        } catch(Exception ex) {
            unexpectedException();
        } finally {
            joinPool(e);
        }
    }

    /**
     * invokeAny(c) throws NPE if c has null elements
     */
    public void testInvokeAny3() {
        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(10));
        try {
            ArrayList l = new ArrayList();
            l.add(new StringTask());
            l.add(null);
            e.invokeAny(l);
        } catch (NullPointerException success) {
        } catch(Exception ex) {
            unexpectedException();
        } finally {
            joinPool(e);
        }
    }

    /**
     * invokeAny(c) throws ExecutionException if no task completes
     */
    public void testInvokeAny4() {
        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(10));
        try {
            ArrayList l = new ArrayList();
            l.add(new NPETask());
            e.invokeAny(l);
        } catch (ExecutionException success) {
        } catch(Exception ex) {
            unexpectedException();
        } finally {
            joinPool(e);
        }
    }

    /**
     * invokeAny(c) returns result of some task
     */
    public void testInvokeAny5() {
        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue(10));
        try {
            ArrayList l = new ArrayList();
            l.add(new StringTask());
            l.add(new StringTask());
            String result = (String)e.invokeAny(l);
            assertSame(TEST_STRING, result);
        } catch (ExecutionException success) {
        } catch(Exception ex) {
            unexpectedException();
        } finally {
            joinPool(e);
        }
    }