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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.os;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.test.suitebuilder.annotation.MediumTest;
import junit.framework.TestCase;
public class MessageQueueTest extends TestCase {
private static class BaseTestHandler extends TestHandlerThread {
Handler mHandler;
int mLastMessage;
int mCount;
public BaseTestHandler() {
}
public void go() {
mHandler = new Handler() {
public void handleMessage(Message msg) {
BaseTestHandler.this.handleMessage(msg);
}
};
}
public void handleMessage(Message msg) {
if (mCount <= mLastMessage) {
if (msg.what != mCount) {
failure(new RuntimeException(
"Expected message #" + mCount
+ ", received #" + msg.what));
} else if (mCount == mLastMessage) {
success();
}
mCount++;
} else {
failure(new RuntimeException(
"Message received after done, #" + msg.what));
}
}
}
@MediumTest
public void testMessageOrder() throws Exception {
TestHandlerThread tester = new BaseTestHandler() {
public void go() {
super.go();
long now = SystemClock.uptimeMillis() + 200;
mLastMessage = 4;
mCount = 0;
mHandler.sendMessageAtTime(mHandler.obtainMessage(2), now + 1);
mHandler.sendMessageAtTime(mHandler.obtainMessage(3), now + 2);
mHandler.sendMessageAtTime(mHandler.obtainMessage(4), now + 2);
mHandler.sendMessageAtTime(mHandler.obtainMessage(0), now + 0);
mHandler.sendMessageAtTime(mHandler.obtainMessage(1), now + 0);
}
};
tester.doTest(1000);
}
@MediumTest
public void testAtFrontOfQueue() throws Exception {
TestHandlerThread tester = new BaseTestHandler() {
public void go() {
super.go();
long now = SystemClock.uptimeMillis() + 200;
mLastMessage = 3;
mCount = 0;
mHandler.sendMessageAtTime(mHandler.obtainMessage(3), now);
mHandler.sendMessageAtFrontOfQueue(mHandler.obtainMessage(2));
mHandler.sendMessageAtFrontOfQueue(mHandler.obtainMessage(0));
}
public void handleMessage(Message msg) {
super.handleMessage(msg);
if (msg.what == 0) {
mHandler.sendMessageAtFrontOfQueue(mHandler.obtainMessage(1));
}
}
};
tester.doTest(1000);
}
}
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