Improve accuracy of timestamps and thread count changes.

Matthew Swift

06.44.2013 cc595890af3004096b2494bdcf8c4bc8008c75f4

 opends/tests/unit-tests-testng/src/server/org/opends/server/DirectoryServerTestCase.java

@@ -23,16 +23,21 @@
 *
 *
 *      Copyright 2006-2008 Sun Microsystems, Inc.
 *      Portions copyright 2013 ForgeRock AS.
 */
package org.opends.server;

import org.testng.annotations.AfterSuite;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.Test;
import org.testng.annotations.AfterClass;
import org.opends.messages.Message;

import java.util.ArrayList;
import java.util.Collections;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.Set;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
@@ -45,7 +50,9 @@
 * have them include the class name.
 */
@Test(sequential=true)
@SuppressWarnings("javadoc")
public abstract class DirectoryServerTestCase {

  @BeforeSuite
  public final void suppressOutput() {
    TestCaseUtils.suppressOutput();
@@ -129,9 +136,9 @@
   */
  @AfterClass(alwaysRun = true)
  public void nullMemberVariablesAfterTest() {
    Class cls = this.getClass();
    Class<?> cls = this.getClass();
    // Iterate through all of the fields in all subclasses of
    // DirectoryServerTestCase, but not DirectoryServerTestCase itself. 
    // DirectoryServerTestCase, but not DirectoryServerTestCase itself.
    while (DirectoryServerTestCase.class.isAssignableFrom(cls) &&
           !DirectoryServerTestCase.class.equals(cls))
    {
@@ -139,7 +146,8 @@
      for (int i = 0; i < fields.length; i++) {
        Field field = fields[i];
        int modifiers = field.getModifiers();
        Class fieldClass = field.getType();
        Class<?> fieldClass = field.getType();

        // If it's a non-static non-final non-primitive type, then null it out
        // so that the garbage collector can reclaim it and everything it
        // references.
@@ -160,4 +168,51 @@
      cls = cls.getSuperclass();
    }
  }

  // Accessed by listener on test class completion.
  long startTime;
  long endTime;
  List<String> threadNamesBeforeClass;
  List<String> threadNamesAfterClass;

  @BeforeClass(alwaysRun = true)
  public void captureEnvironmentStateBeforeClass()
  {
    startTime = System.currentTimeMillis();
    threadNamesBeforeClass = listAllThreadNames();
  }

  @AfterClass(alwaysRun = true)
  public void captureEnvironmentStateAfterClass()
  {
    endTime = System.currentTimeMillis();
    threadNamesAfterClass = listAllThreadNames();
  }

  private List<String> listAllThreadNames()
  {
    Thread currentThread = Thread.currentThread();
    ThreadGroup topGroup = currentThread.getThreadGroup();
    while (topGroup.getParent() != null)
    {
      topGroup = topGroup.getParent();
    }

    Thread threads[] = new Thread[topGroup.activeCount() * 2];
    int numThreads = topGroup.enumerate(threads);

    List<String> activeThreads = new ArrayList<String>();
    for (int i = 0; i < numThreads; i++)
    {
      Thread thread = threads[i];
      if (thread.isAlive())
      {
        String fullName = thread.getName();
        activeThreads.add(fullName);
      }
    }

    Collections.sort(activeThreads);
    return activeThreads;
  }
}