8081536: (process) remove unreliable ScaleTest from ProcessHandle tests
Reviewed-by: darcy
--- a/jdk/test/java/lang/ProcessHandle/ScaleTest.java Fri May 29 14:04:12 2015 -0400
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,126 +0,0 @@
-/*
- * Copyright (c) 2015, 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. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * 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 java.io.IOException;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.Iterator;
-import java.util.List;
-import java.util.stream.Collectors;
-import static org.testng.Assert.assertEquals;
-import org.testng.TestNG;
-import org.testng.annotations.DataProvider;
-import org.testng.annotations.Test;
-
-/*
- * @test
- * @summary Scalibities test for checking scability of ProcessHandle
- * @run testng/othervm ScaleTest
- */
-public class ScaleTest {
- /**
- * Scale max processes number to 5000.
- */
- private final static int MAX_PROCESSES_LIMIT = 1000;
-
- /**
- * Create test process number as 1, 2, 5, 10, 20, 50, 100, 200... until it reach
- * setting process limit.
- * @return iterator on how many processes can be created.
- * @throws IOException if can't create processes.
- */
- @DataProvider
- public Iterator<Object[]> processesNumbers() {
- // Limit spawn processes number less than total limitation.
-
- List<Object[]> testProcesses = new ArrayList<>();
- int i = 1, j = 0;
- while (i <= MAX_PROCESSES_LIMIT) {
- testProcesses.add(new Object[]{i});
- if ((j % 3) != 1)
- i *= 2;
- else
- i = i * 25 / 10;
- j++;
- }
- return testProcesses.iterator();
- }
-
- /**
- * Start process by given number, compare created processes with
- * ProcessHandle.children by order.
- * @param processNum processes number that will be created
- */
- @Test(dataProvider = "processesNumbers")
- public void scaleProcesses(int processNum) {
- try {
- ProcessBuilder pb = new ProcessBuilder();
- pb.command("sleep", "600");
- List<ProcessHandle> children = new ArrayList<>();
-
- int createdProcessNum = 0;
- for (int i = 0; i < processNum; i++) {
- try {
- children.add(pb.start().toHandle());
- createdProcessNum++;
- } catch (Throwable ignore) {
- // Hard to control how many processes we can generate.
- // Ignore every error when create new process
- }
- }
- List<ProcessHandle> phs = ProcessHandle.current().allChildren()
- .filter(ph -> ph.info().command().orElse("").contains("sleep"))
- .collect(Collectors.toList());
- assertEquals(phs.size(), createdProcessNum, "spawned processes vs allChildren");
- assertEqualsWithoutOrder(phs, children, ProcessHandle::compareTo, processNum);
- } finally {
- ProcessHandle.current().children().forEach(ProcessHandle::destroyForcibly);
- }
- }
-
- /**
- * Sort two list by given comparator and compare two list without order
- * @param actual Process handle list1
- * @param expected Process handle list1
- * @param comp ProcessHandle comparator for sorting
- * @param pn number of processes
- */
- private void assertEqualsWithoutOrder(List<ProcessHandle> actual,
- List<ProcessHandle> expected, Comparator<ProcessHandle> comp, int pn) {
- Collections.sort(actual, comp);
- Collections.sort(expected, comp);
-
- assertEquals(actual, expected);
- }
-
- // Main can be used to run the tests from the command line with only testng.jar.
- @SuppressWarnings("raw_types")
- public static void main(String[] args) {
- Class<?>[] testclass = {ScaleTest.class};
- TestNG testng = new TestNG();
- testng.setTestClasses(testclass);
- testng.run();
- }
-}