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/*
* Copyright (C) 2010 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 libcore.dalvik.system;
import dalvik.system.CloseGuard;
import java.io.Closeable;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.logging.ConsoleHandler;
import java.util.logging.Handler;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
import junit.framework.Assert;
import libcore.java.lang.ref.FinalizationTester;
public final class CloseGuardTester implements Closeable {
private final List<LogRecord> logRecords = new CopyOnWriteArrayList<LogRecord>();
private final Logger logger = Logger.getLogger(CloseGuard.class.getName());
private final Handler logWatcher = new Handler() {
@Override public void close() {}
@Override public void flush() {}
@Override public void publish(LogRecord record) {
logRecords.add(record);
}
};
public CloseGuardTester() {
/*
* Collect immediately before we start monitoring the CloseGuard logs.
* This lowers the chance that we'll report an unrelated leak.
*/
FinalizationTester.induceFinalization();
logger.addHandler(logWatcher);
}
public void assertEverythingWasClosed() {
FinalizationTester.induceFinalization();
if (!logRecords.isEmpty()) {
// print the log records with the output of this test
for (LogRecord leak : logRecords) {
new ConsoleHandler().publish(leak);
}
Assert.fail("CloseGuard detected unclosed resources!");
}
}
@Override public void close() throws IOException {
Logger.getLogger(CloseGuard.class.getName()).removeHandler(logWatcher);
}
}
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