| /* |
| * Copyright (C) 2020 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.perftests.utils; |
| |
| import static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation; |
| |
| import android.app.KeyguardManager; |
| import android.app.UiAutomation; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.ParcelFileDescriptor; |
| import android.os.PowerManager; |
| import android.os.SystemClock; |
| |
| import androidx.test.rule.ActivityTestRule; |
| |
| import org.junit.After; |
| import org.junit.BeforeClass; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Objects; |
| import java.util.concurrent.TimeUnit; |
| import java.util.function.Consumer; |
| |
| /** The base class for window related performance tests. */ |
| public class WindowPerfTestBase { |
| public static final long NANOS_PER_S = 1000L * 1000 * 1000; |
| public static final long TIME_1_S_IN_NS = 1 * NANOS_PER_S; |
| |
| static boolean sIsProfilingMethod; |
| |
| @BeforeClass |
| public static void setUpOnce() { |
| final Context context = getInstrumentation().getContext(); |
| |
| if (!context.getSystemService(PowerManager.class).isInteractive() |
| || context.getSystemService(KeyguardManager.class).isKeyguardLocked()) { |
| executeShellCommand("input keyevent KEYCODE_WAKEUP"); |
| executeShellCommand("wm dismiss-keyguard"); |
| } |
| context.startActivity(new Intent(Intent.ACTION_MAIN) |
| .addCategory(Intent.CATEGORY_HOME).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK)); |
| } |
| |
| @After |
| public void tearDown() { |
| // Make sure that profiling is stopped if test fails. |
| if (sIsProfilingMethod) { |
| stopProfiling(); |
| } |
| } |
| |
| public static UiAutomation getUiAutomation() { |
| return getInstrumentation().getUiAutomation(); |
| } |
| |
| public static void startAsyncAtrace(String tags) { |
| getUiAutomation().executeShellCommand("atrace --async_start -b 32768 -c " + tags); |
| // Avoid atrace isn't ready immediately. |
| SystemClock.sleep(TimeUnit.NANOSECONDS.toMillis(TIME_1_S_IN_NS)); |
| } |
| |
| public static InputStream stopAsyncAtraceWithStream() { |
| return new ParcelFileDescriptor.AutoCloseInputStream( |
| getUiAutomation().executeShellCommand("atrace --async_stop")); |
| } |
| |
| /** Starts method tracing on system server. */ |
| public static void startProfiling(File basePath, String outFileName) { |
| if (!basePath.exists()) { |
| executeShellCommand("mkdir -p " + basePath); |
| } |
| final String samplingArg = WindowPerfRunPreconditionBase.sSamplingIntervalUs > 0 |
| ? ("--sampling " + WindowPerfRunPreconditionBase.sSamplingIntervalUs) |
| : ""; |
| executeShellCommand("am profile start " + samplingArg + " system " |
| + new File(basePath, outFileName)); |
| sIsProfilingMethod = true; |
| } |
| |
| /** Stops method tracing of system server. */ |
| public static void stopProfiling() { |
| executeShellCommand("am profile stop system"); |
| sIsProfilingMethod = false; |
| } |
| |
| public static boolean sIsProfilingMethod() { |
| return sIsProfilingMethod; |
| } |
| |
| /** Returns how many iterations should run with method tracing. */ |
| public static int getProfilingIterations() { |
| return WindowPerfRunPreconditionBase.sProfilingIterations; |
| } |
| |
| /** |
| * Executes shell command with reading the output. It may also used to block until the current |
| * command is completed. |
| */ |
| public static ByteArrayOutputStream executeShellCommand(String command) { |
| final ParcelFileDescriptor pfd = getUiAutomation().executeShellCommand(command); |
| final byte[] buf = new byte[512]; |
| final ByteArrayOutputStream bytes = new ByteArrayOutputStream(); |
| int bytesRead; |
| try (FileInputStream fis = new ParcelFileDescriptor.AutoCloseInputStream(pfd)) { |
| while ((bytesRead = fis.read(buf)) != -1) { |
| bytes.write(buf, 0, bytesRead); |
| } |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| return bytes; |
| } |
| |
| public static void runWithShellPermissionIdentity(Runnable runnable) { |
| getUiAutomation().adoptShellPermissionIdentity(); |
| try { |
| runnable.run(); |
| } finally { |
| getUiAutomation().dropShellPermissionIdentity(); |
| } |
| } |
| |
| public static class SettingsSession<T> implements AutoCloseable { |
| private final Consumer<T> mSetter; |
| private final T mOriginalValue; |
| private boolean mChanged; |
| |
| public SettingsSession(T originalValue, Consumer<T> setter) { |
| mOriginalValue = originalValue; |
| mSetter = setter; |
| } |
| |
| public void set(T value) { |
| if (Objects.equals(value, mOriginalValue)) { |
| mChanged = false; |
| return; |
| } |
| mSetter.accept(value); |
| mChanged = true; |
| } |
| |
| @Override |
| public void close() { |
| if (mChanged) { |
| mSetter.accept(mOriginalValue); |
| } |
| } |
| } |
| |
| /** |
| * Provides the {@link PerfTestActivity} with an associated customizable intent. |
| */ |
| public static class PerfTestActivityRuleBase extends ActivityTestRule<PerfTestActivity> { |
| protected final Intent mStartIntent = |
| new Intent(getInstrumentation().getTargetContext(), PerfTestActivity.class); |
| |
| public PerfTestActivityRuleBase() { |
| this(false /* launchActivity */); |
| } |
| |
| public PerfTestActivityRuleBase(boolean launchActivity) { |
| super(PerfTestActivity.class, false /* initialTouchMode */, launchActivity); |
| } |
| |
| @Override |
| public Intent getActivityIntent() { |
| return mStartIntent; |
| } |
| |
| public PerfTestActivity launchActivity() { |
| return launchActivity(mStartIntent); |
| } |
| } |
| } |