/*
*
*
* 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.events;
import com.sun.midp.i3test.*;
/**
* Unit tests for the EventQueue class.
*/
public class TestEventQueue extends TestCase {
/**
* Test simple creation of an event queue.
*/
void testCreate() {
EventQueue eq = new EventQueue();
assertFalse(eq.alive);
assertNotNull(eq.dispatchTable);
assertTrue(eq.dispatchTable.length > 0);
assertNotNull(eq.pool);
assertEquals(-1, eq.nativeEventQueueHandle);
assertNotNull(eq.eventQueueThread);
assertNotNull(eq.eventMonitorThread);
assertFalse(eq.eventQueueThread.isAlive());
assertFalse(eq.eventMonitorThread.isAlive());
}
/**
* Tests the ability to register an event.
*/
void testRegister() {
final int EVENT_TYPE = 7;
EventQueue eq = new EventQueue();
InstrumentedEventListener iel = new InstrumentedEventListener();
eq.registerEventListener(EVENT_TYPE, iel);
DispatchData dd = eq.dispatchTable[EVENT_TYPE-1];
assertNotNull(dd);
assertEquals(iel, dd.listener);
}
/**
* Tests whether the dispatch table is grown properly.
*/
void testGrowDispatchTable() {
final int EVENT_TYPE_A = 4;
final int EVENT_TYPE_B = 97;
// must be larger than the dispatch table default size
EventQueue eq = new EventQueue();
assertTrue(EVENT_TYPE_B > eq.dispatchTable.length);
InstrumentedEventListener iela = new InstrumentedEventListener();
InstrumentedEventListener ielb = new InstrumentedEventListener();
eq.registerEventListener(EVENT_TYPE_A, iela);
eq.registerEventListener(EVENT_TYPE_B, ielb);
DispatchData dda = eq.dispatchTable[EVENT_TYPE_A-1];
assertNotNull(dda);
assertEquals(iela, dda.listener);
DispatchData ddb = eq.dispatchTable[EVENT_TYPE_B-1];
assertNotNull(ddb);
assertEquals(ielb, ddb.listener);
}
/**
* Tests posting of an event.
*/
void testPost1() {
final int EVENT_TYPE = 14;
EventQueue eq = new EventQueue();
InstrumentedEventListener iel = new InstrumentedEventListener();
eq.registerEventListener(EVENT_TYPE, iel);
Event ev = new Event(EVENT_TYPE);
eq.post(ev);
// assertions on the event queue
assertSame("nextEvent should be ev", ev, eq.nextEvent);
assertSame("lastEvent should be ev", ev, eq.lastEvent);
// assertions from the event listener
Event[] arr;
arr = iel.getProcessedEvents();
assertEquals("processed should be length 0", 0, arr.length);
arr = iel.getPreprocessedEvents();
assertEquals("preprocessed should be length 1", 1, arr.length);
assertSame("preprocessed[0] should be ev", ev, arr[0]);
arr = iel.getWaitingEvents();
assertEquals("waiting should be length 1", 1, arr.length);
assertNull("waiting[0] should be null", arr[0]);
}
/**
* Tests posting of three events.
*/
void testPost3() {
final int EVENT_TYPE_A = 5;
final int EVENT_TYPE_B = 7;
EventQueue eq = new EventQueue();
InstrumentedEventListener iel = new InstrumentedEventListener();
eq.registerEventListener(EVENT_TYPE_A, iel);
eq.registerEventListener(EVENT_TYPE_B, iel);
Event ev0 = new Event(EVENT_TYPE_A);
Event ev1 = new Event(EVENT_TYPE_B);
Event ev2 = new Event(EVENT_TYPE_A);
eq.post(ev0);
eq.post(ev1);
eq.post(ev2);
// assertions on the event queue
assertSame("nextEvent should be ev0", ev0, eq.nextEvent);
assertSame("lastEvent should be ev2", ev2, eq.lastEvent);
assertSame("ev0.next should be ev1", ev1, ev0.next);
assertSame("ev1.next should be ev2", ev2, ev1.next);
assertNull("ev2.next should be null", ev2.next);
// assertions from the event listener
Event[] arr;
arr = iel.getProcessedEvents();
assertEquals("processed should be length 0", 0, arr.length);
arr = iel.getPreprocessedEvents();
assertEquals("preprocessed should be length 3", 3, arr.length);
assertSame("preprocessed[0] should be ev0", ev0, arr[0]);
assertSame("preprocessed[1] should be ev1", ev1, arr[1]);
assertSame("preprocessed[2] should be ev2", ev2, arr[2]);
arr = iel.getWaitingEvents();
assertEquals("waiting should be length 3", 3, arr.length);
assertNull("waiting[0] should be null", arr[0]);
assertNull("waiting[1] should be null", arr[1]);
assertEquals("waiting[2] should be ev0", ev0, arr[2]);
}
/**
* Tests preprocessing of events.
*/
void testPreprocess() {
EventQueue eq = new EventQueue();
InstrumentedEventListener iel = new InstrumentedEventListener(true);
final int EVENT_TYPE = 10;
eq.registerEventListener(EVENT_TYPE, iel);
Event ev0 = new Event(EVENT_TYPE);
Event ev1 = new Event(EVENT_TYPE);
eq.post(ev0);
iel.setPreprocess(false);
eq.post(ev1);
// assertions on the event queue
assertSame("nextEvent should be ev0", ev0, eq.nextEvent);
assertSame("lastEvent should be ev0", ev0, eq.lastEvent);
assertNull("ev0.next should be null", ev0.next);
// assertions from the event listener
Event[] arr;
arr = iel.getProcessedEvents();
assertEquals("processed should be length 0", 0, arr.length);
arr = iel.getPreprocessedEvents();
assertEquals("preprocessed should be length 2", 2, arr.length);
assertSame("preprocessed[0] should be ev0", ev0, arr[0]);
assertSame("preprocessed[1] should be ev1", ev1, arr[1]);
arr = iel.getWaitingEvents();
assertEquals("waiting should be length 2", 2, arr.length);
assertNull("waiting[0] should be null", arr[0]);
assertEquals("waiting[1] should be ev0", ev0, arr[1]);
}
/**
* Runs all tests.
*/
public void runTests() throws Throwable {
declare("testCreate");
testCreate();
declare("testRegister");
testRegister();
declare("testGrowDispatchTable");
testGrowDispatchTable();
declare("testPost1");
testPost1();
declare("testPost3");
testPost3();
declare("testPreprocess");
testPreprocess();
}
}
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