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Diffstat (limited to 'tests/reproducers/simple/deadlocktest/testcases/DeadLockTestTest.java')
-rw-r--r-- | tests/reproducers/simple/deadlocktest/testcases/DeadLockTestTest.java | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/tests/reproducers/simple/deadlocktest/testcases/DeadLockTestTest.java b/tests/reproducers/simple/deadlocktest/testcases/DeadLockTestTest.java new file mode 100644 index 0000000..b2e0a48 --- /dev/null +++ b/tests/reproducers/simple/deadlocktest/testcases/DeadLockTestTest.java @@ -0,0 +1,267 @@ +/* DeadLockTestTest.java +Copyright (C) 2011 Red Hat, Inc. + +This file is part of IcedTea. + +IcedTea is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public License as published by +the Free Software Foundation, version 2. + +IcedTea 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 for more details. + +You should have received a copy of the GNU General Public License +along with IcedTea; see the file COPYING. If not, write to +the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. + */ + +import java.util.ArrayList; +import net.sourceforge.jnlp.ServerAccess; +import net.sourceforge.jnlp.ServerAccess.ProcessResult; +import org.junit.Assert; +import java.util.Arrays; +import java.util.List; +import java.util.regex.Matcher; +import java.util.regex.Pattern; +import org.junit.BeforeClass; + +import org.junit.Test; + +public class DeadLockTestTest { + + private static ServerAccess server = new ServerAccess(); + private static String deadlocktest_1 = "/deadlocktest_1.jnlp"; + private static String deadlocktest = "/deadlocktest.jnlp"; + + @BeforeClass + public static void printJavas() throws Exception { + ServerAccess.logOutputReprint("Currently runnng javas1 " + countJavaInstances()); + + } + + @Test + public void testDeadLockTestTerminated() throws Exception { + testDeadLockTestTerminatedBody(deadlocktest); + testDeadLockTestTerminatedBody(deadlocktest); + ServerAccess.logOutputReprint("Currently running javas12 " + countJavaInstances()); + } + + @Test + public void testDeadLockTestTerminated2() throws Exception { + testDeadLockTestTerminatedBody(deadlocktest_1); + testDeadLockTestTerminatedBody(deadlocktest_1); + /** + * this happens, when p.p.destroy is called before p.interrupt. and destroyed variable is removedI have no idea why, but it is incorrect. + Assert.assertNotNull("return can not be null in no fork process. Was ",pr.returnValue);//in this case forking is forbiden, and sojava throws an exception after destroy + */ + ServerAccess.logOutputReprint("Currently running javas13 " + countJavaInstances()); + } + + public void testDeadLockTestTerminatedBody(String jnlp) throws Exception { + List<String> before = countJavaInstances(); + ServerAccess.logOutputReprint("java1 " + jnlp + " : " + before.size()); + ServerAccess.ProcessResult pr = server.executeJavawsHeadless(null, jnlp); + assertDeadlockTestLaunched(pr); + List<String> after = countJavaInstances(); + ServerAccess.logOutputReprint("java2 " + jnlp + " : " + after.size()); + String ss = "This process is hanging more than 30s. Should be killed"; + Assert.assertFalse("stdout should not contains: " + ss + ", but did", pr.stdout.contains(ss)); +// Assert.assertTrue(pr.stderr.contains("xception"));, exception is thrown by engine,not by application + Assert.assertTrue("testDeadLockTestTerminated should be terminated, but wasn't", pr.wasTerminated); + Assert.assertNull("Killed process must have null return value. Have not - ", pr.returnValue); + killDiff(before, after); + List<String> afterKill = countJavaInstances(); + ServerAccess.logOutputReprint("java3 " + jnlp + " : " + afterKill.size()); + Assert.assertEquals("assert that just old javas remians", 0, (before.size() - afterKill.size())); + } + + @Test + public void ensureAtLeasOneJavaIsRunning() throws Exception { + Assert.assertTrue("at least one java should be running, but isn't! Javas are probably counted badly", countJavaInstances().size() > 0); + + } + + @Test + public void testSimpletest1lunchFork() throws Exception { + List<String> before = countJavaInstances(); + ServerAccess.logOutputReprint("java4: " + before.size()); + BackgroundDeadlock bd = new BackgroundDeadlock(deadlocktest_1, null); + bd.start(); + Thread.sleep(ServerAccess.PROCESS_TIMEOUT * 2 / 3); + List<String> during = countJavaInstances(); + ServerAccess.logOutputReprint("java5: " + during.size()); + waitForBackgroundDeadlock(bd); + List<String> after = countJavaInstances(); + ServerAccess.logOutputReprint("java6: " + after.size()); + Assert.assertNotNull("proces inside background deadlock cant be null. It was.", bd.getPr()); + assertDeadlockTestLaunched(bd.getPr()); + killDiff(before, during); + List<String> afterKill = countJavaInstances(); + ServerAccess.logOutputReprint("java66: " + afterKill.size()); + Assert.assertEquals("assert that just old javas remians", 0, (before.size() - afterKill.size())); + // div by two is caused by jav in java process hierarchy + Assert.assertEquals("launched JVMs must be exactly 2, was " + (during.size() - before.size()) / 2, 2, (during.size() - before.size()) / 2); + } + + @Test + public void testSimpletest1lunchNoFork() throws Exception { + List<String> before = countJavaInstances(); + ServerAccess.logOutputReprint("java7: " + before.size()); + BackgroundDeadlock bd = new BackgroundDeadlock(deadlocktest_1, Arrays.asList(new String[]{"-Xnofork"})); + bd.start(); + Thread.sleep(ServerAccess.PROCESS_TIMEOUT * 2 / 3); + List<String> during = countJavaInstances(); + ServerAccess.logOutputReprint("java8: " + during.size()); + waitForBackgroundDeadlock(bd); + List<String> after = countJavaInstances(); + ServerAccess.logOutputReprint("java9: " + after.size()); + Assert.assertNotNull("proces inside background deadlock cant be null. It was.", bd.getPr()); + assertDeadlockTestLaunched(bd.getPr()); + killDiff(before, during); + List<String> afterKill = countJavaInstances(); + ServerAccess.logOutputReprint("java99: " + afterKill.size()); + Assert.assertEquals("assert that just old javas remians", 0, (before.size() - afterKill.size())); + // div by two is caused by jav in java process hierarchy + Assert.assertEquals("launched JVMs must be exactly 1, was " + (during.size() - before.size()) / 2, 1, (during.size() - before.size()) / 2); + } + + /** + * by process assasin destroyed processes are hanging random amount of time as zombies. + * Kill -9 is handling zombies pretty well. + * + * This function kills or processes which are in nw but are not in old + * (eq.to killing new zombies:) ) + * + * @param old + * @param nw + * @return + * @throws Exception + */ + private static List<String> killDiff(List<String> old, List<String> nw) throws Exception { + ensureLinux(); + List<String> result = new ArrayList<String>(); + for (String string : nw) { + if (old.contains(string)) { + continue; + } + ServerAccess.logOutputReprint("Killing " + string); + ServerAccess.PROCESS_LOG = false; + try { + ServerAccess.ProcessResult pr = ServerAccess.executeProcess(Arrays.asList(new String[]{"kill", "-9", string})); + } finally { + ServerAccess.PROCESS_LOG = true; + } + result.add(string); + ServerAccess.logOutputReprint("Killed " + string); + } + return result; + } + + private static List<String> countJavaInstances() throws Exception { + ensureLinux(); + List<String> result = new ArrayList<String>(); + ServerAccess.PROCESS_LOG = false; + try { + ServerAccess.ProcessResult pr = ServerAccess.executeProcess(Arrays.asList(new String[]{"ps", "-eo", "pid,ppid,stat,fname"})); + Matcher m = Pattern.compile("\\s*\\d+\\s+\\d+ .+ java\\s*").matcher(pr.stdout); + int i = 0; + while (m.find()) { + i++; + String ss = m.group(); + //ServerAccess.logOutputReprint(i+": "+ss); + result.add(ss.trim().split("\\s+")[0]); + } + } finally { + ServerAccess.PROCESS_LOG = true; + } + return result; + + } + + public static void main(String[] args) throws Exception { + ServerAccess.logOutputReprint("" + countJavaInstances()); + } + + private void assertDeadlockTestLaunched(ProcessResult pr) { + String s = "Deadlock test started"; + Assert.assertTrue("Deadlock test should print out " + s + ", but did not", pr.stdout.contains(s)); + String ss = "xception"; + Assert.assertFalse("Deadlock test should not stderr " + ss + " but did", pr.stderr.contains(ss)); + //each 3500 seconds deadlock test stdout something + //timeout is 20s + //so it should write out FIVE sentences, but is mostly just three or four. Last is nearly always consumed by termination + for (int i = 1; i <= 3; i++) { + String sentence = i + " Deadlock sleeping"; + Assert.assertTrue( + "stdout should contains: " + sentence + ", didn't, so framework have consumed to much during termination", + pr.stdout.contains(sentence)); + } + } + + private void waitForBackgroundDeadlock(final BackgroundDeadlock bd) throws InterruptedException { + while (!bd.isFinished()) { + Thread.sleep(500); + + } + } + + private static class BackgroundDeadlock extends Thread { + + private boolean finished = false; + private ProcessResult pr = null; + String jnlp; + List<String> args; + + public BackgroundDeadlock(String jnlp, List<String> args) { + this.jnlp = jnlp; + this.args = args; + } + + @Override + public void run() { + try { + pr = server.executeJavawsHeadless(args, jnlp); + } catch (Exception ex) { + ServerAccess.logException(ex); + } finally { + finished = true; + } + + } + + public ProcessResult getPr() { + return pr; + } + + public boolean isFinished() { + return finished; + } + } + + private static void ensureLinux() { + String os = System.getProperty("os.name").toLowerCase(); + if (!(os.contains("linux") || os.contains("unix"))) { + throw new IllegalStateException("This test can be procesed only on linux like machines"); + } + } +} |