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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 static junit.framework.Assert.assertFalse;
import static junit.framework.Assert.assertTrue;
import android.content.Context;
import android.media.MediaController2.ControllerCallback;
import android.media.MediaSession2.CommandGroup;
import android.os.Bundle;
import android.os.HandlerThread;
import android.support.annotation.CallSuper;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.test.InstrumentationRegistry;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executor;
import java.util.concurrent.TimeUnit;
import org.junit.AfterClass;
import org.junit.BeforeClass;
/**
* Base class for session test.
*/
abstract class MediaSession2TestBase {
// Expected success
static final int WAIT_TIME_MS = 1000;
// Expected timeout
static final int TIMEOUT_MS = 500;
static TestUtils.SyncHandler sHandler;
static Executor sHandlerExecutor;
Context mContext;
private List<MediaController2> mControllers = new ArrayList<>();
interface TestControllerInterface {
ControllerCallback getCallback();
}
interface TestControllerCallbackInterface {
// Currently empty. Add methods in ControllerCallback/BrowserCallback that you want to test.
// Browser specific callbacks
default void onGetRootResult(Bundle rootHints, String rootMediaId, Bundle rootExtra) {}
}
interface WaitForConnectionInterface {
void waitForConnect(boolean expect) throws InterruptedException;
void waitForDisconnect(boolean expect) throws InterruptedException;
}
@BeforeClass
public static void setUpThread() {
if (sHandler == null) {
HandlerThread handlerThread = new HandlerThread("MediaSession2TestBase");
handlerThread.start();
sHandler = new TestUtils.SyncHandler(handlerThread.getLooper());
sHandlerExecutor = (runnable) -> {
sHandler.post(runnable);
};
}
}
@AfterClass
public static void cleanUpThread() {
if (sHandler != null) {
sHandler.getLooper().quitSafely();
sHandler = null;
sHandlerExecutor = null;
}
}
@CallSuper
public void setUp() throws Exception {
mContext = InstrumentationRegistry.getTargetContext();
}
@CallSuper
public void cleanUp() throws Exception {
for (int i = 0; i < mControllers.size(); i++) {
mControllers.get(i).close();
}
}
final MediaController2 createController(SessionToken2 token) throws InterruptedException {
return createController(token, true, null);
}
final MediaController2 createController(@NonNull SessionToken2 token,
boolean waitForConnect, @Nullable TestControllerCallbackInterface callback)
throws InterruptedException {
TestControllerInterface instance = onCreateController(token, callback);
if (!(instance instanceof MediaController2)) {
throw new RuntimeException("Test has a bug. Expected MediaController2 but returned "
+ instance);
}
MediaController2 controller = (MediaController2) instance;
mControllers.add(controller);
if (waitForConnect) {
waitForConnect(controller, true);
}
return controller;
}
private static WaitForConnectionInterface getWaitForConnectionInterface(
MediaController2 controller) {
if (!(controller instanceof TestControllerInterface)) {
throw new RuntimeException("Test has a bug. Expected controller implemented"
+ " TestControllerInterface but got " + controller);
}
ControllerCallback callback = ((TestControllerInterface) controller).getCallback();
if (!(callback instanceof WaitForConnectionInterface)) {
throw new RuntimeException("Test has a bug. Expected controller with callback "
+ " implemented WaitForConnectionInterface but got " + controller);
}
return (WaitForConnectionInterface) callback;
}
public static void waitForConnect(MediaController2 controller, boolean expected)
throws InterruptedException {
getWaitForConnectionInterface(controller).waitForConnect(expected);
}
public static void waitForDisconnect(MediaController2 controller, boolean expected)
throws InterruptedException {
getWaitForConnectionInterface(controller).waitForDisconnect(expected);
}
TestControllerInterface onCreateController(@NonNull SessionToken2 token,
@NonNull TestControllerCallbackInterface callback) {
return new TestMediaController(mContext, token, new TestControllerCallback(callback));
}
public static class TestControllerCallback extends MediaController2.ControllerCallback
implements WaitForConnectionInterface {
public final TestControllerCallbackInterface mCallbackProxy;
public final CountDownLatch connectLatch = new CountDownLatch(1);
public final CountDownLatch disconnectLatch = new CountDownLatch(1);
TestControllerCallback(TestControllerCallbackInterface callbackProxy) {
mCallbackProxy = callbackProxy;
}
@CallSuper
@Override
public void onConnected(CommandGroup commands) {
super.onConnected(commands);
connectLatch.countDown();
}
@CallSuper
@Override
public void onDisconnected() {
super.onDisconnected();
disconnectLatch.countDown();
}
@Override
public void waitForConnect(boolean expect) throws InterruptedException {
if (expect) {
assertTrue(connectLatch.await(WAIT_TIME_MS, TimeUnit.MILLISECONDS));
} else {
assertFalse(connectLatch.await(TIMEOUT_MS, TimeUnit.MILLISECONDS));
}
}
@Override
public void waitForDisconnect(boolean expect) throws InterruptedException {
if (expect) {
assertTrue(disconnectLatch.await(WAIT_TIME_MS, TimeUnit.MILLISECONDS));
} else {
assertFalse(disconnectLatch.await(TIMEOUT_MS, TimeUnit.MILLISECONDS));
}
}
}
public class TestMediaController extends MediaController2 implements TestControllerInterface {
private final ControllerCallback mCallback;
public TestMediaController(@NonNull Context context, @NonNull SessionToken2 token,
@NonNull ControllerCallback callback) {
super(context, token, callback, sHandlerExecutor);
mCallback = callback;
}
@Override
public ControllerCallback getCallback() {
return mCallback;
}
}
}
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