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/*
* Copyright (C) 2015 DroidDriver committers
*
* 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 io.appium.droiddriver.android_support_test;
import android.app.Activity;
import android.os.Bundle;
import android.os.Looper;
import android.support.test.internal.runner.lifecycle.ActivityLifecycleMonitorRegistry;
import android.support.test.runner.AndroidJUnitRunner;
import android.support.test.runner.lifecycle.Stage;
import android.util.Log;
import java.util.Iterator;
import java.util.concurrent.Callable;
import java.util.concurrent.FutureTask;
import java.util.concurrent.TimeUnit;
import io.appium.droiddriver.exceptions.DroidDriverException;
import io.appium.droiddriver.exceptions.TimeoutException;
import io.appium.droiddriver.helpers.DroidDrivers;
import io.appium.droiddriver.util.ActivityUtils;
import io.appium.droiddriver.util.Logs;
/**
* Integrates DroidDriver with AndroidJUnitRunner. <p> TODO: support DroidDriver test filter
* annotations.
*/
public class D2AndroidJUnitRunner extends AndroidJUnitRunner {
private static final Callable<Activity> GET_RUNNING_ACTIVITY = new Callable<Activity>() {
@Override
public Activity call() {
Iterator<Activity> activityIterator = ActivityLifecycleMonitorRegistry.getInstance()
.getActivitiesInStage(Stage.RESUMED).iterator();
return activityIterator.hasNext() ? activityIterator.next() : null;
}
};
/**
* {@inheritDoc} <p> Sets the values for the convenience methods {@link
* DroidDrivers#getInstrumentation()} and {@link DroidDrivers#getOptions()}.
*/
@Override
public void onCreate(Bundle arguments) {
DroidDrivers.initInstrumentation(this, arguments);
super.onCreate(arguments);
}
/**
* {@inheritDoc} <p> Hooks {@link ActivityUtils#setRunningActivitySupplier} to {@link
* ActivityLifecycleMonitorRegistry}.
*/
@Override
public void onStart() {
ActivityUtils.setRunningActivitySupplier(new ActivityUtils.Supplier<Activity>() {
@Override
public Activity get() {
try {
// If this is called on main (UI) thread, don't call runOnMainSync
if (Looper.myLooper() == Looper.getMainLooper()) {
return GET_RUNNING_ACTIVITY.call();
}
return runOnMainSyncWithTimeout(GET_RUNNING_ACTIVITY);
} catch (Exception e) {
Logs.log(Log.WARN, e);
return null;
}
}
});
super.onStart();
}
/**
* Runs {@code callable} on the main thread on best-effort basis up to a time limit, which
* defaults to {@code 10000L} and can be set as an <a href= "http://developer.android.com/tools/testing/testing_otheride.html#AMOptionsSyntax">
* am instrument option</a> under the key {@code dd.runOnMainSyncTimeout}. <p>This is a safer
* variation of {@link #runOnMainSync} because the latter may hang. But it is heavy because a new
* thread is created for each call unless the am command line specifies {@code
* dd.runOnMainSyncTimeout <=0} such as "-e dd.runOnMainSyncTimeout 0".</p>The {@code callable}
* may never run, for example, in case that the main Looper has exited due to uncaught exception.
*/
// TODO: move this to DroidDrivers
// TODO: call runOnMainSync on a single worker thread?
private <V> V runOnMainSyncWithTimeout(Callable<V> callable) {
final RunOnMainSyncFutureTask<V> futureTask = new RunOnMainSyncFutureTask<>(callable);
String timeoutMillisString = DroidDrivers.getOptions().getString("dd.runOnMainSyncTimeout");
long timeoutMillis = timeoutMillisString == null? 10000L : Long.parseLong(timeoutMillisString);
if (timeoutMillis <= 0L) {
// Call runOnMainSync on current thread without time limit.
futureTask.runOnMainSyncNoThrow();
} else {
new Thread() {
@Override
public void run() {
futureTask.runOnMainSyncNoThrow();
}
}.start();
}
try {
return futureTask.get(timeoutMillis, TimeUnit.MILLISECONDS);
} catch (java.util.concurrent.TimeoutException e) {
throw new TimeoutException("Timed out after " + timeoutMillis
+ " milliseconds waiting for Instrumentation.runOnMainSync", e);
} catch (Throwable e) {
throw new DroidDriverException(e);
} finally {
futureTask.cancel(false);
}
}
private class RunOnMainSyncFutureTask<V> extends FutureTask<V> {
public RunOnMainSyncFutureTask(Callable<V> callable) {
super(callable);
}
public void runOnMainSyncNoThrow() {
try {
runOnMainSync(this);
} catch (Throwable e) {
setException(e);
}
}
}
}
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