Add perf tests for PendingIntent

/*

 * Copyright (C) 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.app;

import android.content.Context;

import android.content.Intent;

import android.perftests.utils.BenchmarkState;

import android.perftests.utils.PerfStatusReporter;

import android.perftests.utils.StubActivity;

import android.support.test.InstrumentationRegistry;

import android.support.test.filters.LargeTest;

import android.support.test.runner.AndroidJUnit4;

import org.junit.Before;

import org.junit.Rule;

import org.junit.Test;

import org.junit.runner.RunWith;

// Due to b/71353150, you might get "java.lang.AssertionError: Binder ProxyMap has too many

// entries", but it's flaky. Adding "Runtime.getRuntime().gc()" between each iteration solves

// the problem, but it doesn't seem like it's currently needed.

@RunWith(AndroidJUnit4.class)

@LargeTest

public class PendingIntentPerfTest {

    private Context mContext;

    @Rule

    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

    private Intent mIntent;

    @Before

    public void setUp() {

        mContext = InstrumentationRegistry.getTargetContext();

        mIntent = StubActivity.createLaunchIntent(mContext);

    }

    /**

     * Benchmark time to create a PendingIntent.

     */

    @Test

    public void create() {

        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();

        while (state.keepRunning()) {

            state.pauseTiming();

            state.resumeTiming();

            final PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 0, mIntent,

                    0);

            state.pauseTiming();

            pendingIntent.cancel();

            state.resumeTiming();

        }

    }

    /**

     * Benchmark time to create a PendingIntent with FLAG_CANCEL_CURRENT, already having an active

     * PendingIntent.

     */

    @Test

    public void createWithCancelFlag() {

        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();

        while (state.keepRunning()) {

            state.pauseTiming();

            final PendingIntent previousPendingIntent = PendingIntent.getActivity(mContext, 0,

                    mIntent, 0);

            state.resumeTiming();

            final PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 0, mIntent,

                    PendingIntent.FLAG_CANCEL_CURRENT);

            state.pauseTiming();

            pendingIntent.cancel();

            state.resumeTiming();

        }

    }

    /**

     * Benchmark time to create a PendingIntent with FLAG_UPDATE_CURRENT, already having an active

     * PendingIntent.

     */

    @Test

    public void createWithUpdateFlag() {

        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();

        while (state.keepRunning()) {

            state.pauseTiming();

            final PendingIntent previousPendingIntent = PendingIntent.getActivity(mContext, 0,

                    mIntent, 0);

            state.resumeTiming();

            final PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 0, mIntent,

                    PendingIntent.FLAG_UPDATE_CURRENT);

            state.pauseTiming();

            previousPendingIntent.cancel();

            pendingIntent.cancel();

            state.resumeTiming();

        }

    }

    /**

     * Benchmark time to cancel a PendingIntent.

     */

    @Test

    public void cancel() {

        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();

        while (state.keepRunning()) {

            state.pauseTiming();

            final PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 0,

                    mIntent, 0);

            state.resumeTiming();

            pendingIntent.cancel();

        }

    }

}

package android.perftests.utils;

import android.app.Activity;

import android.content.Context;

import android.content.Intent;

public class StubActivity extends Activity {

    public static Intent createLaunchIntent(Context context) {

        final Intent intent = new Intent();

        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        intent.setClass(context, StubActivity.class);

        return intent;

    }

}