Merge "Add a simple benchmark for getting view attributes from Theme_Material."

/*

 * 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.res.Resources;

import android.perftests.utils.BenchmarkState;

import android.perftests.utils.PerfStatusReporter;

import android.support.test.InstrumentationRegistry;

import android.support.test.filters.LargeTest;

import org.junit.Before;

import org.junit.Rule;

import org.junit.Test;

/**

 * Benchmarks for {@link android.content.res.Resources.Theme}.

 */

@LargeTest

public class ResourcesThemePerfTest {

    @Rule

    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

    private Resources.Theme mTheme;

    @Before

    public void setUp() {

        Context context = InstrumentationRegistry.getTargetContext();

        mTheme = context.getTheme();

    }

    @Test

    public void obtainStyledAttributesForViewFromMaterial() {

        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();

        while (state.keepRunning()) {

            mTheme.obtainStyledAttributes(android.R.style.Theme_Material, android.R.styleable.View);

        }

    }

}