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Commit 3f6fa8b4 authored by Jared Duke's avatar Jared Duke
Browse files

Add SystemFeaturesMetadataPerfTest 

Add a basic perf test for querying system feature indices. Introduce
a proxy helper method for accessing this, as the method is generated
via an annotation processor with internal visibility.

Bug: 203143243
Test: atest \
    CorePerfTests:android.content.pm.SystemFeaturesMetadataPerfTest
Flag: EXEMPT Not yet used
Change-Id: I67175af22b06567bab1bdfcd7a9b148ceb1bed6e
parent 87f71c68

apct-tests/perftests/core/src/android/content/pm/SystemFeaturesMetadataPerfTest.java

0 → 100644
+67 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2024 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.content.pm;



import android.perftests.utils.BenchmarkState;

import android.perftests.utils.PerfStatusReporter;



import androidx.test.filters.LargeTest;

import androidx.test.runner.AndroidJUnit4;



import org.junit.Rule;

import org.junit.Test;

import org.junit.runner.RunWith;



@RunWith(AndroidJUnit4.class)

@LargeTest

public class SystemFeaturesMetadataPerfTest {

    // As each query is relatively cheap, add an inner iteration loop to reduce execution noise.

    private static final int NUM_ITERATIONS = 10;



    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();



    @Test

    public void maybeGetSdkFeatureIndex_featureDefined() {

        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();

        while (state.keepRunning()) {

            for (int i = 0; i < NUM_ITERATIONS; ++i) {

                PackageManager.maybeGetSdkFeatureIndex(PackageManager.FEATURE_WATCH);

                PackageManager.maybeGetSdkFeatureIndex(PackageManager.FEATURE_LEANBACK);

                PackageManager.maybeGetSdkFeatureIndex(PackageManager.FEATURE_IPSEC_TUNNELS);

                PackageManager.maybeGetSdkFeatureIndex(PackageManager.FEATURE_WEBVIEW);

                PackageManager.maybeGetSdkFeatureIndex(PackageManager.FEATURE_NFC_BEAM);

                PackageManager.maybeGetSdkFeatureIndex(PackageManager.FEATURE_AUTOFILL);

            }

        }

    }



    @Test

    public void maybeGetSdkFeatureIndex_featureUndefined() {

        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();

        while (state.keepRunning()) {

            for (int i = 0; i < NUM_ITERATIONS; ++i) {

                PackageManager.maybeGetSdkFeatureIndex("com.android.custom.feature.1");

                PackageManager.maybeGetSdkFeatureIndex("com.android.custom.feature.2");

                PackageManager.maybeGetSdkFeatureIndex("foo");

                PackageManager.maybeGetSdkFeatureIndex("bar");

                PackageManager.maybeGetSdkFeatureIndex("0");

                PackageManager.maybeGetSdkFeatureIndex("");

            }

        }

    }



}

core/java/android/content/pm/PackageManager.java

+24 −10
Original line number Diff line number Diff line
@@ -3115,16 +3115,6 @@ public abstract class PackageManager { 
     */

    public static final long MAXIMUM_VERIFICATION_TIMEOUT = 60*60*1000;



    /**

     * As the generated feature count is useful for classes that may not be compiled in the same

     * annotation processing unit as PackageManager, we redeclare it here for visibility.

     *

     * @hide

     */

    @VisibleForTesting

    public static final int SDK_FEATURE_COUNT =

            com.android.internal.pm.SystemFeaturesMetadata.SDK_FEATURE_COUNT;



    /**

     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}: The device's

     * audio pipeline is low-latency, more suitable for audio applications sensitive to delays or
@@ -11879,4 +11869,28 @@ public abstract class PackageManager { 
        }

        return new SigningInfo(result.getResult());

    }



    /**

     * As the generated feature count is useful for classes that may not be compiled in the same

     * annotation processing unit as PackageManager, we redeclare it here for visibility.

     *

     * @hide

     */

    @VisibleForTesting

    public static final int SDK_FEATURE_COUNT =

            com.android.internal.pm.SystemFeaturesMetadata.SDK_FEATURE_COUNT;



    /**

     * Returns a stable index for PackageManager-defined features.

     *

     * <p> Similar to {@link #SDK_FEATURE_COUNT}, we redeclare this utility method generated by the

     * annotation processor for internal visibility.

     *

     * @return index in [0, {@link #SDK_FEATURECOUNT}) for PackageManager-defined features, else -1.

     * @hide

     */

    @VisibleForTesting

    public static int maybeGetSdkFeatureIndex(String featureName) {

        return com.android.internal.pm.SystemFeaturesMetadata.maybeGetSdkFeatureIndex(featureName);

    }

}