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/*
* Copyright (c) 2018, 2020, 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.
*/
import org.testng.annotations.AfterMethod;
import org.testng.annotations.DataProvider;
import java.io.IOException;
import java.net.http.HttpClient;
import java.net.http.WebSocket;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.function.BooleanSupplier;
import static java.net.http.HttpClient.Builder.NO_PROXY;
import static java.net.http.HttpClient.newBuilder;
/* Common infrastructure for tests that check pending operations */
public class PendingOperations {
static final Class<IllegalStateException> ISE = IllegalStateException.class;
static final Class<IOException> IOE = IOException.class;
// Time after which we deem that the local send buffer and remote
// receive buffer must be full.
// At the time of writing, using anything <= 5s on Mac will make the
// tests fail intermittently.
static final long MAX_WAIT_SEC = 10; // seconds.
long waitSec;
DummyWebSocketServer server;
WebSocket webSocket;
protected HttpClient httpClient() {
return newBuilder().proxy(NO_PROXY).build();
}
@AfterMethod
public void cleanup() {
// make sure we have a trace both on System.out and System.err
// to help with diagnosis.
System.out.println("cleanup: Closing server");
System.err.println("cleanup: Closing server");
server.close();
webSocket.abort();
}
/* shortcut */
static void assertAllHang(CompletableFuture<?> cf1,
CompletableFuture<?> cf2) {
assertHangs(CompletableFuture.anyOf(cf1, cf2));
}
/* shortcut */
static void assertHangs(CompletionStage<?> stage) {
Support.assertHangs(stage);
}
/* shortcut */
static void assertFails(Class<? extends Throwable> clazz,
CompletionStage<?> stage) {
Support.assertCompletesExceptionally(clazz, stage);
}
static void assertNotDone(CompletableFuture<?> future) {
Support.assertNotDone(future);
}
@DataProvider(name = "booleans")
public Object[][] booleans() {
return new Object[][]{{Boolean.TRUE}, {Boolean.FALSE}};
}
static boolean isMacOS() {
return System.getProperty("os.name").contains("OS X");
}
static boolean isWindows() {
return System.getProperty("os.name").toLowerCase().startsWith("win");
}
private static final int ITERATIONS = 3;
void repeatable(Callable<Void> callable,
BooleanSupplier repeatCondition)
throws Exception
{
int iterations = 0;
do {
iterations++;
if (iterations == 1) {
waitSec = initialWaitSec();
} else {
waitSec = MAX_WAIT_SEC;
}
System.out.println("--- iteration " + iterations + " ---");
try {
callable.call();
break;
} catch (AssertionError e) {
var isMac = isMacOS();
var isWindows = isWindows();
var repeat = repeatCondition.getAsBoolean();
System.out.printf("repeatable: isMac=%s, isWindows=%s, repeat=%s, iterations=%d%n",
isMac, isWindows, repeat, iterations);
if ((isMac || isWindows) && repeat) {
// ## This is loathsome, but necessary because of observed
// ## automagic socket buffer resizing on recent macOS platforms
try { cleanup(); } catch (Throwable x) {}
continue;
} else {
throw e;
}
} finally {
// gives some time to gc to cleanup any resource that might
// be eligible for garbage collection
System.gc();
Thread.sleep(100);
}
} while (iterations <= ITERATIONS);
}
long initialWaitSec() {
return 1;
}
}
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