android/os/TracePerfTest.java

/*
 * 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.os;

import android.perftests.utils.BenchmarkState;
import android.perftests.utils.PerfStatusReporter;
import android.perftests.utils.ShellHelper;

import androidx.test.runner.AndroidJUnit4;

import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;

@RunWith(AndroidJUnit4.class)
public class TracePerfTest {
    @Rule
    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

    @BeforeClass
    public static void startTracing() {
        ShellHelper.runShellCommandRaw("atrace -c --async_start -a *");
    }

    @AfterClass
    public static void endTracing() {
        ShellHelper.runShellCommandRaw("atrace --async_stop");
    }

    @Before
    public void verifyTracingEnabled() {
        Assert.assertTrue(Trace.isEnabled());
    }

    @Test
    public void testEnabled() {
        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        while (state.keepRunning()) {
            Trace.isEnabled();
        }
    }

    @Test
    public void testBeginEndSection() {
        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        while (state.keepRunning()) {
            Trace.beginSection("testBeginEndSection");
            Trace.endSection();
        }
    }

    @Test
    public void testAsyncBeginEnd() {
        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        while (state.keepRunning()) {
            Trace.beginAsyncSection("testAsyncBeginEnd", 42);
            Trace.endAsyncSection("testAsyncBeginEnd", 42);
        }
    }

    @Test
    public void testCounter() {
        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        while (state.keepRunning()) {
            Trace.setCounter("testCounter", 123);
        }
    }
}