/*
*
*
* Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program 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 program 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 at /legal/license.txt).
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.midp.i3test;
import com.sun.cldc.util.Semaphore;
public class TestIsolateSynch extends TestCase {
boolean isBlocked;
/**
* Tests semaphores are null prior to initialization.
*/
void testNull() {
// no initialization here!
Semaphore s1 = IsolateSynch.getSemReady0();
Semaphore s2 = IsolateSynch.getSemContinue0();
assertNull(s1);
assertNull(s2);
}
/**
* Checks semaphore identities after init, null after fini.
*/
void testInitFini() {
IsolateSynch.init();
Semaphore s1 = IsolateSynch.getSemReady0();
Semaphore s2 = IsolateSynch.getSemContinue0();
assertSame("semReady", IsolateSynch.semReady, s1);
assertSame("semContinue", IsolateSynch.semContinue, s2);
IsolateSynch.fini();
assertNull(IsolateSynch.semReady);
assertNull(IsolateSynch.semContinue);
assertNull(IsolateSynch.getSemReady0());
assertNull(IsolateSynch.getSemContinue0());
}
/**
* Synchronizes with another thread within this isolate.
*/
void testSynch() {
IsolateSynch.init();
Thread t = new Thread() {
public void run() {
isBlocked = true;
IsolateSynch.pause();
isBlocked = false;
}
};
isBlocked = false;
t.start();
IsolateSynch.awaitReady();
assertTrue(isBlocked);
IsolateSynch.signalContinue();
try {
t.join();
} catch (InterruptedException ignore) { }
assertTrue(!isBlocked);
IsolateSynch.fini();
}
/**
* Tests what happens if initialization is done twice.
*/
void testDoubleInit() {
boolean thrown = false;
IsolateSynch.init();
try {
IsolateSynch.init();
} catch (IllegalStateException ise) {
thrown = true;
}
assertTrue("IllegalStateException not thrown", thrown);
IsolateSynch.fini();
}
/**
* Runs all the tests.
*/
public void runTests() {
declare("testNull");
testNull();
declare("testInitFini");
testInitFini();
declare("testSynch");
testSynch();
declare("testDoubleInit");
testDoubleInit();
}
}
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