| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.internal.net.http.common; |
| |
| import org.testng.annotations.Test; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.CyclicBarrier; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import static org.testng.Assert.assertEquals; |
| import static org.testng.Assert.assertFalse; |
| import static org.testng.Assert.assertTrue; |
| |
| public class DemandTest { |
| |
| @Test |
| public void test01() { |
| assertTrue(new Demand().isFulfilled()); |
| } |
| |
| @Test |
| public void test011() { |
| Demand d = new Demand(); |
| d.increase(3); |
| d.decreaseAndGet(3); |
| assertTrue(d.isFulfilled()); |
| } |
| |
| @Test |
| public void test02() { |
| Demand d = new Demand(); |
| d.increase(1); |
| assertFalse(d.isFulfilled()); |
| } |
| |
| @Test |
| public void test03() { |
| Demand d = new Demand(); |
| d.increase(3); |
| assertEquals(d.decreaseAndGet(3), 3); |
| } |
| |
| @Test |
| public void test04() { |
| Demand d = new Demand(); |
| d.increase(3); |
| assertEquals(d.decreaseAndGet(5), 3); |
| } |
| |
| @Test |
| public void test05() { |
| Demand d = new Demand(); |
| d.increase(7); |
| assertEquals(d.decreaseAndGet(4), 4); |
| } |
| |
| @Test |
| public void test06() { |
| Demand d = new Demand(); |
| assertEquals(d.decreaseAndGet(3), 0); |
| } |
| |
| @Test(expectedExceptions = IllegalArgumentException.class) |
| public void test07() { |
| Demand d = new Demand(); |
| d.increase(0); |
| } |
| |
| @Test(expectedExceptions = IllegalArgumentException.class) |
| public void test08() { |
| Demand d = new Demand(); |
| d.increase(-1); |
| } |
| |
| @Test(expectedExceptions = IllegalArgumentException.class) |
| public void test09() { |
| Demand d = new Demand(); |
| d.increase(10); |
| d.decreaseAndGet(0); |
| } |
| |
| @Test(expectedExceptions = IllegalArgumentException.class) |
| public void test10() { |
| Demand d = new Demand(); |
| d.increase(13); |
| d.decreaseAndGet(-3); |
| } |
| |
| @Test |
| public void test11() { |
| Demand d = new Demand(); |
| d.increase(1); |
| assertTrue(d.tryDecrement()); |
| } |
| |
| @Test |
| public void test12() { |
| Demand d = new Demand(); |
| d.increase(2); |
| assertTrue(d.tryDecrement()); |
| } |
| |
| @Test |
| public void test14() { |
| Demand d = new Demand(); |
| assertFalse(d.tryDecrement()); |
| } |
| |
| @Test |
| public void test141() { |
| Demand d = new Demand(); |
| d.increase(Long.MAX_VALUE); |
| assertFalse(d.isFulfilled()); |
| } |
| |
| @Test |
| public void test142() { |
| Demand d = new Demand(); |
| d.increase(Long.MAX_VALUE); |
| d.increase(1); |
| assertFalse(d.isFulfilled()); |
| } |
| |
| @Test |
| public void test143() { |
| Demand d = new Demand(); |
| d.increase(Long.MAX_VALUE); |
| d.increase(1); |
| assertFalse(d.isFulfilled()); |
| } |
| |
| @Test |
| public void test144() { |
| Demand d = new Demand(); |
| d.increase(Long.MAX_VALUE); |
| d.increase(Long.MAX_VALUE); |
| d.decreaseAndGet(3); |
| d.decreaseAndGet(5); |
| assertFalse(d.isFulfilled()); |
| } |
| |
| @Test |
| public void test145() { |
| Demand d = new Demand(); |
| d.increase(Long.MAX_VALUE); |
| d.decreaseAndGet(Long.MAX_VALUE); |
| assertTrue(d.isFulfilled()); |
| } |
| |
| @Test(invocationCount = 32) |
| public void test15() throws InterruptedException { |
| int N = Math.max(2, Runtime.getRuntime().availableProcessors() + 1); |
| int M = ((N + 1) * N) / 2; // 1 + 2 + 3 + ... N |
| Demand d = new Demand(); |
| d.increase(M); |
| CyclicBarrier start = new CyclicBarrier(N); |
| CountDownLatch stop = new CountDownLatch(N); |
| AtomicReference<Throwable> error = new AtomicReference<>(); |
| for (int i = 0; i < N; i++) { |
| int j = i + 1; |
| new Thread(() -> { |
| try { |
| start.await(); |
| } catch (Exception e) { |
| error.compareAndSet(null, e); |
| } |
| try { |
| assertEquals(d.decreaseAndGet(j), j); |
| } catch (Throwable t) { |
| error.compareAndSet(null, t); |
| } finally { |
| stop.countDown(); |
| } |
| }).start(); |
| } |
| stop.await(); |
| assertTrue(d.isFulfilled()); |
| assertEquals(error.get(), null); |
| } |
| } |