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/*
* Copyright 2018 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.media;
import android.content.Context;
import android.media.session.MediaSessionManager;
import android.media.session.PlaybackState;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import java.util.List;
import java.util.Objects;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* Utilities for tests.
*/
public final class TestUtils {
private static final int WAIT_TIME_MS = 1000;
private static final int WAIT_SERVICE_TIME_MS = 5000;
/**
* Creates a {@link android.media.session.PlaybackState} with the given state.
*
* @param state one of the PlaybackState.STATE_xxx.
* @return a PlaybackState
*/
public static PlaybackState2 createPlaybackState(int state) {
return new PlaybackState2(state, 0, 0, 1.0f,
0, 0, null);
}
/**
* Finds the session with id in this test package.
*
* @param context
* @param id
* @return
*/
// TODO(jaewan): Currently not working.
public static SessionToken2 getServiceToken(Context context, String id) {
MediaSessionManager manager =
(MediaSessionManager) context.getSystemService(Context.MEDIA_SESSION_SERVICE);
List<SessionToken2> tokens = manager.getSessionServiceTokens();
for (int i = 0; i < tokens.size(); i++) {
SessionToken2 token = tokens.get(i);
if (context.getPackageName().equals(token.getPackageName())
&& id.equals(token.getId())) {
return token;
}
}
fail("Failed to find service");
return null;
}
/**
* Compares contents of two bundles.
*
* @param a a bundle
* @param b another bundle
* @return {@code true} if two bundles are the same. {@code false} otherwise. This may be
* incorrect if any bundle contains a bundle.
*/
public static boolean equals(Bundle a, Bundle b) {
if (a == b) {
return true;
}
if (a == null || b == null) {
return false;
}
if (!a.keySet().containsAll(b.keySet())
|| !b.keySet().containsAll(a.keySet())) {
return false;
}
for (String key : a.keySet()) {
if (!Objects.equals(a.get(key), b.get(key))) {
return false;
}
}
return true;
}
/**
* Handler that always waits until the Runnable finishes.
*/
public static class SyncHandler extends Handler {
public SyncHandler(Looper looper) {
super(looper);
}
public void postAndSync(Runnable runnable) throws InterruptedException {
final CountDownLatch latch = new CountDownLatch(1);
if (getLooper() == Looper.myLooper()) {
runnable.run();
} else {
post(()->{
runnable.run();
latch.countDown();
});
assertTrue(latch.await(WAIT_TIME_MS, TimeUnit.MILLISECONDS));
}
}
}
}
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