yield.java

// Tags: JDK1.0

// Copyright (C) 2002 Free Software Foundation, Inc.
// Written by Mark Wielaard (mark@klomp.org)

// This file is part of Mauve.

// Mauve 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; either version 2, or (at your option)
// any later version.

// Mauve 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 Mauve; see the file COPYING.  If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.  */


package gnu.testlet.java.lang.Thread;

import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
import com.sun.cldchi.jvm.JVM;
import org.mozilla.internal.Sys;

public class yield extends Thread implements Testlet
{
  public int getExpectedPass() { return 1; }
  public int getExpectedFail() { return 0; }
  public int getExpectedKnownFail() { return 0; }

  public void car() {
    Thread.yield();
  }

  public void bar() {
    car();
  }

  public void foo() {
    bar();
  }

  public void test (TestHarness harness)
  {
    long start = Sys.getUnwindCount();
    for (int i = 0; i < 100; i++) {
      foo();
    }
    harness.check((Sys.getUnwindCount() - start) == 100, "Not enough unwinds.");
    System.out.println("Unwinds: " + (Sys.getUnwindCount() - start));
  }
}