1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.documentsui;
18
19import android.app.Activity;
20import android.app.ActivityManager;
21import android.content.Context;
22import android.content.Intent;
23import android.content.pm.PackageManager;
24import android.content.pm.ResolveInfo;
25import android.os.Bundle;
26import android.provider.DocumentsContract;
27import android.support.test.uiautomator.UiDevice;
28import android.test.InstrumentationTestCase;
29import android.test.suitebuilder.annotation.LargeTest;
30import android.util.Log;
31
32import java.util.Arrays;
33import java.util.List;
34import java.util.concurrent.CountDownLatch;
35
36@LargeTest
37public class FilesAppPerfTest extends InstrumentationTestCase {
38
39    // Keys used to report metrics to APCT.
40    private static final String KEY_FILES_COLD_START_PERFORMANCE_MEDIAN =
41            "files-cold-start-performance-median";
42    private static final String KEY_FILES_WARM_START_PERFORMANCE_MEDIAN =
43            "files-warm-start-performance-median";
44
45    private static final String TARGET_PACKAGE = "com.android.documentsui";
46
47    private static final int NUM_MEASUREMENTS = 10;
48
49    private LauncherActivity mActivity;
50    private UiDevice mDevice;
51
52    @Override
53    public void setUp() {
54        mDevice = UiDevice.getInstance(getInstrumentation());
55    }
56
57    public void testFilesColdStartPerformance() throws Exception {
58        runFilesStartPerformanceTest(true);
59    }
60
61    public void testFilesWarmStartPerformance() throws Exception {
62        runFilesStartPerformanceTest(false);
63    }
64
65    public void runFilesStartPerformanceTest(boolean cold) throws Exception {
66        long[] measurements = new long[NUM_MEASUREMENTS];
67        for (int i = 0; i < NUM_MEASUREMENTS; i++) {
68            if (cold) {
69                // Kill all providers, as well as DocumentsUI to measure a cold start.
70                killProviders();
71                mDevice.executeShellCommand("am force-stop " + TARGET_PACKAGE);
72            }
73            mDevice.waitForIdle();
74
75            LauncherActivity.testCaseLatch = new CountDownLatch(1);
76            mActivity = launchActivity(getInstrumentation().getTargetContext().getPackageName(),
77                    LauncherActivity.class, null);
78            LauncherActivity.testCaseLatch.await();
79            measurements[i] = LauncherActivity.measurement;
80        }
81
82        reportMetrics(cold ? KEY_FILES_COLD_START_PERFORMANCE_MEDIAN
83                : KEY_FILES_WARM_START_PERFORMANCE_MEDIAN, measurements);
84    }
85
86    private void reportMetrics(String key, long[] measurements) {
87        final Bundle status = new Bundle();
88        Arrays.sort(measurements);
89        final long median = measurements[NUM_MEASUREMENTS / 2 - 1];
90        status.putDouble(key, median);
91
92        getInstrumentation().sendStatus(Activity.RESULT_OK, status);
93    }
94
95    private void killProviders() throws Exception {
96        final Context context = getInstrumentation().getContext();
97        final PackageManager pm = context.getPackageManager();
98        final ActivityManager am = (ActivityManager) context.getSystemService(
99                Context.ACTIVITY_SERVICE);
100        final Intent intent = new Intent(DocumentsContract.PROVIDER_INTERFACE);
101        final List<ResolveInfo> providers = pm.queryIntentContentProviders(intent, 0);
102        for (ResolveInfo info : providers) {
103            final String packageName = info.providerInfo.packageName;
104            am.killBackgroundProcesses(packageName);
105        }
106    }
107}
108