test/jdk/java/net/httpclient/whitebox/java.net.http/java/net/http/internal/common/DemandTest.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/net/httpclient/whitebox/java.net.http/java/net/http/internal/common/DemandTest.java Wed Feb 07 14:17:24 2018 +0000
@@ -0,0 +1,202 @@
+/*
+ * 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 java.net.http.internal.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);
+ }
+}