DiskStatsLoggingServiceTest.java revision bd441caaf6fb268b2756bc51304efa038bf58376 
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.server.storage;
18
19import static com.google.common.truth.Truth.assertThat;
20
21import static org.mockito.Matchers.any;
22import static org.mockito.Matchers.anyInt;
23import static org.mockito.Matchers.anyLong;
24import static org.mockito.Matchers.anyString;
25import static org.mockito.Matchers.isNull;
26import static org.mockito.Mockito.when;
27
28import android.app.job.JobService;
29import android.app.usage.ExternalStorageStats;
30import android.app.usage.StorageStatsManager;
31import android.content.pm.PackageStats;
32import android.os.UserHandle;
33import android.test.AndroidTestCase;
34import android.util.Log;
35
36import com.android.server.storage.DiskStatsLoggingService.LogRunnable;
37
38import libcore.io.IoUtils;
39
40import org.json.JSONObject;
41import org.junit.Before;
42import org.junit.Rule;
43import org.junit.Test;
44import org.junit.rules.TemporaryFolder;
45import org.junit.runner.RunWith;
46import org.junit.runners.JUnit4;
47import org.mockito.Mock;
48import org.mockito.MockitoAnnotations;
49
50import java.io.File;
51import java.io.PrintStream;
52import java.util.ArrayList;
53
54@RunWith(JUnit4.class)
55public class DiskStatsLoggingServiceTest extends AndroidTestCase {
56    @Rule public TemporaryFolder mTemporaryFolder;
57    @Rule public TemporaryFolder mDownloads;
58    @Mock private AppCollector mCollector;
59    @Mock private JobService mJobService;
60    @Mock private StorageStatsManager mSsm;
61    private ExternalStorageStats mStorageStats;
62    private File mInputFile;
63
64
65    @Before
66    public void setUp() throws Exception {
67        super.setUp();
68        MockitoAnnotations.initMocks(this);
69        mTemporaryFolder = new TemporaryFolder();
70        mTemporaryFolder.create();
71        mInputFile = mTemporaryFolder.newFile();
72        mDownloads = new TemporaryFolder();
73        mDownloads.create();
74        mStorageStats = new ExternalStorageStats();
75        when(mSsm.queryExternalStatsForUser(isNull(String.class), any(UserHandle.class)))
76                .thenReturn(mStorageStats);
77        when(mJobService.getSystemService(anyString())).thenReturn(mSsm);
78    }
79
80    @Test
81    public void testEmptyLog() throws Exception {
82        LogRunnable task = new LogRunnable();
83        task.setAppCollector(mCollector);
84        task.setDownloadsDirectory(mDownloads.getRoot());
85        task.setLogOutputFile(mInputFile);
86        task.setSystemSize(0L);
87        task.setContext(mJobService);
88        task.run();
89
90        JSONObject json = getJsonOutput();
91        assertThat(json.getLong(DiskStatsFileLogger.PHOTOS_KEY)).isEqualTo(0L);
92        assertThat(json.getLong(DiskStatsFileLogger.VIDEOS_KEY)).isEqualTo(0L);
93        assertThat(json.getLong(DiskStatsFileLogger.AUDIO_KEY)).isEqualTo(0L);
94        assertThat(json.getLong(DiskStatsFileLogger.DOWNLOADS_KEY)).isEqualTo(0L);
95        assertThat(json.getLong(DiskStatsFileLogger.SYSTEM_KEY)).isEqualTo(0L);
96        assertThat(json.getLong(DiskStatsFileLogger.MISC_KEY)).isEqualTo(0L);
97        assertThat(json.getLong(DiskStatsFileLogger.APP_SIZE_AGG_KEY)).isEqualTo(0L);
98        assertThat(json.getLong(DiskStatsFileLogger.APP_CACHE_AGG_KEY)).isEqualTo(0L);
99        assertThat(
100                json.getJSONArray(DiskStatsFileLogger.PACKAGE_NAMES_KEY).length()).isEqualTo(0L);
101        assertThat(json.getJSONArray(DiskStatsFileLogger.APP_SIZES_KEY).length()).isEqualTo(0L);
102        assertThat(json.getJSONArray(DiskStatsFileLogger.APP_CACHES_KEY).length()).isEqualTo(0L);
103    }
104
105    @Test
106    public void testPopulatedLogTask() throws Exception {
107        // Write data to directories.
108        writeDataToFile(mDownloads.newFile(), "lol");
109        mStorageStats.audioBytes = 6L;
110        mStorageStats.imageBytes = 4L;
111        mStorageStats.videoBytes = 5L;
112        mStorageStats.totalBytes = 22L;
113
114        // Write apps.
115        ArrayList<PackageStats> apps = new ArrayList<>();
116        PackageStats testApp = new PackageStats("com.test.app");
117        testApp.dataSize = 5L;
118        testApp.cacheSize = 55L;
119        testApp.codeSize = 10L;
120        testApp.userHandle = UserHandle.USER_SYSTEM;
121        apps.add(testApp);
122        when(mCollector.getPackageStats(anyLong())).thenReturn(apps);
123
124        LogRunnable task = new LogRunnable();
125        task.setAppCollector(mCollector);
126        task.setDownloadsDirectory(mDownloads.getRoot());
127        task.setLogOutputFile(mInputFile);
128        task.setSystemSize(10L);
129        task.setContext(mJobService);
130        task.run();
131
132        JSONObject json = getJsonOutput();
133        assertThat(json.getLong(DiskStatsFileLogger.PHOTOS_KEY)).isEqualTo(4L);
134        assertThat(json.getLong(DiskStatsFileLogger.VIDEOS_KEY)).isEqualTo(5L);
135        assertThat(json.getLong(DiskStatsFileLogger.AUDIO_KEY)).isEqualTo(6L);
136        assertThat(json.getLong(DiskStatsFileLogger.DOWNLOADS_KEY)).isEqualTo(3L);
137        assertThat(json.getLong(DiskStatsFileLogger.SYSTEM_KEY)).isEqualTo(10L);
138        assertThat(json.getLong(DiskStatsFileLogger.MISC_KEY)).isEqualTo(7L);
139        assertThat(json.getLong(DiskStatsFileLogger.APP_SIZE_AGG_KEY)).isEqualTo(15L);
140        assertThat(json.getLong(DiskStatsFileLogger.APP_CACHE_AGG_KEY)).isEqualTo(55L);
141        assertThat(
142                json.getJSONArray(DiskStatsFileLogger.PACKAGE_NAMES_KEY).length()).isEqualTo(1L);
143        assertThat(json.getJSONArray(DiskStatsFileLogger.APP_SIZES_KEY).length()).isEqualTo(1L);
144        assertThat(json.getJSONArray(DiskStatsFileLogger.APP_CACHES_KEY).length()).isEqualTo(1L);
145    }
146
147    @Test
148    public void testDontCrashOnPackageStatsTimeout() throws Exception {
149        when(mCollector.getPackageStats(anyInt())).thenReturn(null);
150
151        LogRunnable task = new LogRunnable();
152        task.setAppCollector(mCollector);
153        task.setDownloadsDirectory(mDownloads.getRoot());
154        task.setLogOutputFile(mInputFile);
155        task.setSystemSize(10L);
156        task.setContext(mJobService);
157        task.run();
158
159        // No exception should be thrown.
160    }
161
162    private void writeDataToFile(File f, String data) throws Exception{
163        PrintStream out = new PrintStream(f);
164        out.print(data);
165        out.close();
166    }
167
168    private JSONObject getJsonOutput() throws Exception {
169        return new JSONObject(IoUtils.readFileAsString(mInputFile.getAbsolutePath()));
170    }
171}
172