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      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 package com.android.server.pm;
     17 
     18 import android.content.pm.ActivityInfo;
     19 import android.content.pm.ApplicationInfo;
     20 import android.content.pm.ConfigurationInfo;
     21 import android.content.pm.FeatureGroupInfo;
     22 import android.content.pm.FeatureInfo;
     23 import android.content.pm.InstrumentationInfo;
     24 import android.content.pm.PackageParser;
     25 import android.content.pm.ProviderInfo;
     26 import android.content.pm.ServiceInfo;
     27 import android.content.pm.Signature;
     28 import android.os.Bundle;
     29 import android.os.Parcel;
     30 import android.support.test.runner.AndroidJUnit4;
     31 import android.test.suitebuilder.annotation.MediumTest;
     32 
     33 import java.io.File;
     34 import java.lang.reflect.Array;
     35 import java.lang.reflect.Field;
     36 import java.nio.charset.StandardCharsets;
     37 import java.security.cert.Certificate;
     38 import java.util.ArrayList;
     39 import java.util.Arrays;
     40 import java.util.HashSet;
     41 import java.util.List;
     42 import java.util.Set;
     43 
     44 import static org.junit.Assert.*;
     45 
     46 import android.util.ArrayMap;
     47 import android.util.ArraySet;
     48 import org.junit.Before;
     49 import org.junit.Test;
     50 import org.junit.runner.RunWith;
     51 
     52 import libcore.io.IoUtils;
     53 
     54 @RunWith(AndroidJUnit4.class)
     55 @MediumTest
     56 public class PackageParserTest {
     57     private File mTmpDir;
     58     private static final File FRAMEWORK = new File("/system/framework/framework-res.apk");
     59 
     60     @Before
     61     public void setUp() {
     62         // Create a new temporary directory for each of our tests.
     63         mTmpDir = IoUtils.createTemporaryDirectory("PackageParserTest");
     64     }
     65 
     66     @Test
     67     public void testParse_noCache() throws Exception {
     68         PackageParser pp = new CachePackageNameParser();
     69         PackageParser.Package pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */,
     70                 false /* useCaches */);
     71         assertNotNull(pkg);
     72 
     73         pp.setCacheDir(mTmpDir);
     74         pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */,
     75                 false /* useCaches */);
     76         assertNotNull(pkg);
     77 
     78         // Make sure that we always write out a cache entry for future reference,
     79         // whether or not we're asked to use caches.
     80         assertEquals(1, mTmpDir.list().length);
     81     }
     82 
     83     @Test
     84     public void testParse_withCache() throws Exception {
     85         PackageParser pp = new CachePackageNameParser();
     86 
     87         pp.setCacheDir(mTmpDir);
     88         // The first parse will write this package to the cache.
     89         pp.parsePackage(FRAMEWORK, 0 /* parseFlags */, true /* useCaches */);
     90 
     91         // Now attempt to parse the package again, should return the
     92         // cached result.
     93         PackageParser.Package pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */,
     94                 true /* useCaches */);
     95         assertEquals("cache_android", pkg.packageName);
     96 
     97         // Try again, with useCaches == false, shouldn't return the parsed
     98         // result.
     99         pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */, false /* useCaches */);
    100         assertEquals("android", pkg.packageName);
    101 
    102         // We haven't set a cache directory here : the parse should still succeed,
    103         // just not using the cached results.
    104         pp = new CachePackageNameParser();
    105         pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */, true /* useCaches */);
    106         assertEquals("android", pkg.packageName);
    107 
    108         pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */, false /* useCaches */);
    109         assertEquals("android", pkg.packageName);
    110     }
    111 
    112     @Test
    113     public void test_serializePackage() throws Exception {
    114         PackageParser pp = new PackageParser();
    115         pp.setCacheDir(mTmpDir);
    116 
    117         PackageParser.Package pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */,
    118             true /* useCaches */);
    119 
    120         Parcel p = Parcel.obtain();
    121         pkg.writeToParcel(p, 0 /* flags */);
    122 
    123         p.setDataPosition(0);
    124         PackageParser.Package deserialized = new PackageParser.Package(p);
    125 
    126         assertPackagesEqual(pkg, deserialized);
    127     }
    128 
    129     @Test
    130     public void test_roundTripKnownFields() throws Exception {
    131         PackageParser.Package pkg = new PackageParser.Package("foo");
    132         setKnownFields(pkg);
    133 
    134         Parcel p = Parcel.obtain();
    135         pkg.writeToParcel(p, 0 /* flags */);
    136 
    137         p.setDataPosition(0);
    138         PackageParser.Package deserialized = new PackageParser.Package(p);
    139         assertAllFieldsExist(deserialized);
    140     }
    141 
    142     @Test
    143     public void test_stringInterning() throws Exception {
    144         PackageParser.Package pkg = new PackageParser.Package("foo");
    145         setKnownFields(pkg);
    146 
    147         Parcel p = Parcel.obtain();
    148         pkg.writeToParcel(p, 0 /* flags */);
    149 
    150         p.setDataPosition(0);
    151         PackageParser.Package deserialized = new PackageParser.Package(p);
    152 
    153         p.setDataPosition(0);
    154         PackageParser.Package deserialized2 = new PackageParser.Package(p);
    155 
    156         assertSame(deserialized.packageName, deserialized2.packageName);
    157         assertSame(deserialized.applicationInfo.permission,
    158                 deserialized2.applicationInfo.permission);
    159         assertSame(deserialized.requestedPermissions.get(0),
    160                 deserialized2.requestedPermissions.get(0));
    161         assertSame(deserialized.protectedBroadcasts.get(0),
    162                 deserialized2.protectedBroadcasts.get(0));
    163         assertSame(deserialized.usesLibraries.get(0),
    164                 deserialized2.usesLibraries.get(0));
    165         assertSame(deserialized.usesOptionalLibraries.get(0),
    166                 deserialized2.usesOptionalLibraries.get(0));
    167         assertSame(deserialized.mVersionName, deserialized2.mVersionName);
    168         assertSame(deserialized.mSharedUserId, deserialized2.mSharedUserId);
    169     }
    170 
    171 
    172     /**
    173      * A trivial subclass of package parser that only caches the package name, and throws away
    174      * all other information.
    175      */
    176     public static class CachePackageNameParser extends PackageParser {
    177         @Override
    178         public byte[] toCacheEntry(Package pkg) {
    179             return ("cache_" + pkg.packageName).getBytes(StandardCharsets.UTF_8);
    180         }
    181 
    182         @Override
    183         public Package fromCacheEntry(byte[] cacheEntry) {
    184             return new Package(new String(cacheEntry, StandardCharsets.UTF_8));
    185         }
    186     }
    187 
    188     // NOTE: The equality assertions below are based on code autogenerated by IntelliJ.
    189 
    190     public static void assertPackagesEqual(PackageParser.Package a, PackageParser.Package b) {
    191         assertEquals(a.baseRevisionCode, b.baseRevisionCode);
    192         assertEquals(a.baseHardwareAccelerated, b.baseHardwareAccelerated);
    193         assertEquals(a.mVersionCode, b.mVersionCode);
    194         assertEquals(a.mSharedUserLabel, b.mSharedUserLabel);
    195         assertEquals(a.mPreferredOrder, b.mPreferredOrder);
    196         assertEquals(a.installLocation, b.installLocation);
    197         assertEquals(a.coreApp, b.coreApp);
    198         assertEquals(a.mRequiredForAllUsers, b.mRequiredForAllUsers);
    199         assertEquals(a.mTrustedOverlay, b.mTrustedOverlay);
    200         assertEquals(a.use32bitAbi, b.use32bitAbi);
    201         assertEquals(a.packageName, b.packageName);
    202         assertTrue(Arrays.equals(a.splitNames, b.splitNames));
    203         assertEquals(a.volumeUuid, b.volumeUuid);
    204         assertEquals(a.codePath, b.codePath);
    205         assertEquals(a.baseCodePath, b.baseCodePath);
    206         assertTrue(Arrays.equals(a.splitCodePaths, b.splitCodePaths));
    207         assertTrue(Arrays.equals(a.splitRevisionCodes, b.splitRevisionCodes));
    208         assertTrue(Arrays.equals(a.splitFlags, b.splitFlags));
    209         assertTrue(Arrays.equals(a.splitPrivateFlags, b.splitPrivateFlags));
    210         assertApplicationInfoEqual(a.applicationInfo, b.applicationInfo);
    211 
    212         assertEquals(a.permissions.size(), b.permissions.size());
    213         for (int i = 0; i < a.permissions.size(); ++i) {
    214             assertPermissionsEqual(a.permissions.get(i), b.permissions.get(i));
    215             assertSame(a.permissions.get(i).owner, a);
    216             assertSame(b.permissions.get(i).owner, b);
    217         }
    218 
    219         assertEquals(a.permissionGroups.size(), b.permissionGroups.size());
    220         for (int i = 0; i < a.permissionGroups.size(); ++i) {
    221             assertPermissionGroupsEqual(a.permissionGroups.get(i), b.permissionGroups.get(i));
    222         }
    223 
    224         assertEquals(a.activities.size(), b.activities.size());
    225         for (int i = 0; i < a.activities.size(); ++i) {
    226             assertActivitiesEqual(a.activities.get(i), b.activities.get(i));
    227         }
    228 
    229         assertEquals(a.receivers.size(), b.receivers.size());
    230         for (int i = 0; i < a.receivers.size(); ++i) {
    231             assertActivitiesEqual(a.receivers.get(i), b.receivers.get(i));
    232         }
    233 
    234         assertEquals(a.providers.size(), b.providers.size());
    235         for (int i = 0; i < a.providers.size(); ++i) {
    236             assertProvidersEqual(a.providers.get(i), b.providers.get(i));
    237         }
    238 
    239         assertEquals(a.services.size(), b.services.size());
    240         for (int i = 0; i < a.services.size(); ++i) {
    241             assertServicesEqual(a.services.get(i), b.services.get(i));
    242         }
    243 
    244         assertEquals(a.instrumentation.size(), b.instrumentation.size());
    245         for (int i = 0; i < a.instrumentation.size(); ++i) {
    246             assertInstrumentationEqual(a.instrumentation.get(i), b.instrumentation.get(i));
    247         }
    248 
    249         assertEquals(a.requestedPermissions, b.requestedPermissions);
    250         assertEquals(a.protectedBroadcasts, b.protectedBroadcasts);
    251         assertEquals(a.parentPackage, b.parentPackage);
    252         assertEquals(a.childPackages, b.childPackages);
    253         assertEquals(a.libraryNames, b.libraryNames);
    254         assertEquals(a.usesLibraries, b.usesLibraries);
    255         assertEquals(a.usesOptionalLibraries, b.usesOptionalLibraries);
    256         assertTrue(Arrays.equals(a.usesLibraryFiles, b.usesLibraryFiles));
    257         assertEquals(a.mOriginalPackages, b.mOriginalPackages);
    258         assertEquals(a.mRealPackage, b.mRealPackage);
    259         assertEquals(a.mAdoptPermissions, b.mAdoptPermissions);
    260         assertBundleApproximateEquals(a.mAppMetaData, b.mAppMetaData);
    261         assertEquals(a.mVersionName, b.mVersionName);
    262         assertEquals(a.mSharedUserId, b.mSharedUserId);
    263         assertTrue(Arrays.equals(a.mSignatures, b.mSignatures));
    264         assertTrue(Arrays.equals(a.mCertificates, b.mCertificates));
    265         assertTrue(Arrays.equals(a.mLastPackageUsageTimeInMills, b.mLastPackageUsageTimeInMills));
    266         assertEquals(a.mExtras, b.mExtras);
    267         assertEquals(a.mRestrictedAccountType, b.mRestrictedAccountType);
    268         assertEquals(a.mRequiredAccountType, b.mRequiredAccountType);
    269         assertEquals(a.mOverlayTarget, b.mOverlayTarget);
    270         assertEquals(a.mSigningKeys, b.mSigningKeys);
    271         assertEquals(a.mUpgradeKeySets, b.mUpgradeKeySets);
    272         assertEquals(a.mKeySetMapping, b.mKeySetMapping);
    273         assertEquals(a.cpuAbiOverride, b.cpuAbiOverride);
    274         assertTrue(Arrays.equals(a.restrictUpdateHash, b.restrictUpdateHash));
    275     }
    276 
    277     private static void assertBundleApproximateEquals(Bundle a, Bundle b) {
    278         if (a == b) {
    279             return;
    280         }
    281 
    282         // Force the bundles to be unparceled.
    283         a.getBoolean("foo");
    284         b.getBoolean("foo");
    285 
    286         assertEquals(a.toString(), b.toString());
    287     }
    288 
    289     private static void assertComponentsEqual(PackageParser.Component<?> a,
    290                                               PackageParser.Component<?> b) {
    291         assertEquals(a.className, b.className);
    292         assertBundleApproximateEquals(a.metaData, b.metaData);
    293         assertEquals(a.getComponentName(), b.getComponentName());
    294 
    295         if (a.intents != null && b.intents != null) {
    296             assertEquals(a.intents.size(), b.intents.size());
    297         } else if (a.intents == null || b.intents == null) {
    298             return;
    299         }
    300 
    301         for (int i = 0; i < a.intents.size(); ++i) {
    302             PackageParser.IntentInfo aIntent = a.intents.get(i);
    303             PackageParser.IntentInfo bIntent = b.intents.get(i);
    304 
    305             assertEquals(aIntent.hasDefault, bIntent.hasDefault);
    306             assertEquals(aIntent.labelRes, bIntent.labelRes);
    307             assertEquals(aIntent.nonLocalizedLabel, bIntent.nonLocalizedLabel);
    308             assertEquals(aIntent.icon, bIntent.icon);
    309             assertEquals(aIntent.logo, bIntent.logo);
    310             assertEquals(aIntent.banner, bIntent.banner);
    311             assertEquals(aIntent.preferred, bIntent.preferred);
    312         }
    313     }
    314 
    315     private static void assertPermissionsEqual(PackageParser.Permission a,
    316                                                PackageParser.Permission b) {
    317         assertComponentsEqual(a, b);
    318         assertEquals(a.tree, b.tree);
    319 
    320         // Verify basic flags in PermissionInfo to make sure they're consistent. We don't perform
    321         // a full structural equality here because the code that serializes them isn't parser
    322         // specific and is tested elsewhere.
    323         assertEquals(a.info.protectionLevel, b.info.protectionLevel);
    324         assertEquals(a.info.group, b.info.group);
    325         assertEquals(a.info.flags, b.info.flags);
    326 
    327         if (a.group != null && b.group != null) {
    328             assertPermissionGroupsEqual(a.group, b.group);
    329         } else if (a.group != null || b.group != null) {
    330             throw new AssertionError();
    331         }
    332     }
    333 
    334     private static void assertInstrumentationEqual(PackageParser.Instrumentation a,
    335                                                    PackageParser.Instrumentation b) {
    336         assertComponentsEqual(a, b);
    337 
    338         // Sanity check for InstrumentationInfo.
    339         assertEquals(a.info.targetPackage, b.info.targetPackage);
    340         assertEquals(a.info.targetProcesses, b.info.targetProcesses);
    341         assertEquals(a.info.sourceDir, b.info.sourceDir);
    342         assertEquals(a.info.publicSourceDir, b.info.publicSourceDir);
    343     }
    344 
    345     private static void assertServicesEqual(PackageParser.Service a, PackageParser.Service b) {
    346         assertComponentsEqual(a, b);
    347 
    348         // Sanity check for ServiceInfo.
    349         assertApplicationInfoEqual(a.info.applicationInfo, b.info.applicationInfo);
    350         assertEquals(a.info.name, b.info.name);
    351     }
    352 
    353     private static void assertProvidersEqual(PackageParser.Provider a, PackageParser.Provider b) {
    354         assertComponentsEqual(a, b);
    355 
    356         // Sanity check for ProviderInfo
    357         assertApplicationInfoEqual(a.info.applicationInfo, b.info.applicationInfo);
    358         assertEquals(a.info.name, b.info.name);
    359     }
    360 
    361     private static void assertActivitiesEqual(PackageParser.Activity a, PackageParser.Activity b) {
    362         assertComponentsEqual(a, b);
    363 
    364         // Sanity check for ActivityInfo.
    365         assertApplicationInfoEqual(a.info.applicationInfo, b.info.applicationInfo);
    366         assertEquals(a.info.name, b.info.name);
    367     }
    368 
    369     private static void assertPermissionGroupsEqual(PackageParser.PermissionGroup a,
    370                                                     PackageParser.PermissionGroup b) {
    371         assertComponentsEqual(a, b);
    372 
    373         // Sanity check for PermissionGroupInfo.
    374         assertEquals(a.info.name, b.info.name);
    375         assertEquals(a.info.descriptionRes, b.info.descriptionRes);
    376     }
    377 
    378     private static void assertApplicationInfoEqual(ApplicationInfo a, ApplicationInfo that) {
    379         assertEquals(a.descriptionRes, that.descriptionRes);
    380         assertEquals(a.theme, that.theme);
    381         assertEquals(a.fullBackupContent, that.fullBackupContent);
    382         assertEquals(a.uiOptions, that.uiOptions);
    383         assertEquals(a.flags, that.flags);
    384         assertEquals(a.privateFlags, that.privateFlags);
    385         assertEquals(a.requiresSmallestWidthDp, that.requiresSmallestWidthDp);
    386         assertEquals(a.compatibleWidthLimitDp, that.compatibleWidthLimitDp);
    387         assertEquals(a.largestWidthLimitDp, that.largestWidthLimitDp);
    388         assertEquals(a.nativeLibraryRootRequiresIsa, that.nativeLibraryRootRequiresIsa);
    389         assertEquals(a.uid, that.uid);
    390         assertEquals(a.minSdkVersion, that.minSdkVersion);
    391         assertEquals(a.targetSdkVersion, that.targetSdkVersion);
    392         assertEquals(a.versionCode, that.versionCode);
    393         assertEquals(a.enabled, that.enabled);
    394         assertEquals(a.enabledSetting, that.enabledSetting);
    395         assertEquals(a.installLocation, that.installLocation);
    396         assertEquals(a.networkSecurityConfigRes, that.networkSecurityConfigRes);
    397         assertEquals(a.taskAffinity, that.taskAffinity);
    398         assertEquals(a.permission, that.permission);
    399         assertEquals(a.processName, that.processName);
    400         assertEquals(a.className, that.className);
    401         assertEquals(a.manageSpaceActivityName, that.manageSpaceActivityName);
    402         assertEquals(a.backupAgentName, that.backupAgentName);
    403         assertEquals(a.volumeUuid, that.volumeUuid);
    404         assertEquals(a.scanSourceDir, that.scanSourceDir);
    405         assertEquals(a.scanPublicSourceDir, that.scanPublicSourceDir);
    406         assertEquals(a.sourceDir, that.sourceDir);
    407         assertEquals(a.publicSourceDir, that.publicSourceDir);
    408         assertTrue(Arrays.equals(a.splitSourceDirs, that.splitSourceDirs));
    409         assertTrue(Arrays.equals(a.splitPublicSourceDirs, that.splitPublicSourceDirs));
    410         assertTrue(Arrays.equals(a.resourceDirs, that.resourceDirs));
    411         assertEquals(a.seInfo, that.seInfo);
    412         assertTrue(Arrays.equals(a.sharedLibraryFiles, that.sharedLibraryFiles));
    413         assertEquals(a.dataDir, that.dataDir);
    414         assertEquals(a.deviceProtectedDataDir, that.deviceProtectedDataDir);
    415         assertEquals(a.credentialProtectedDataDir, that.credentialProtectedDataDir);
    416         assertEquals(a.nativeLibraryDir, that.nativeLibraryDir);
    417         assertEquals(a.secondaryNativeLibraryDir, that.secondaryNativeLibraryDir);
    418         assertEquals(a.nativeLibraryRootDir, that.nativeLibraryRootDir);
    419         assertEquals(a.primaryCpuAbi, that.primaryCpuAbi);
    420         assertEquals(a.secondaryCpuAbi, that.secondaryCpuAbi);
    421     }
    422 
    423     public static void setKnownFields(PackageParser.Package pkg) {
    424         pkg.baseRevisionCode = 100;
    425         pkg.baseHardwareAccelerated = true;
    426         pkg.mVersionCode = 100;
    427         pkg.mSharedUserLabel = 100;
    428         pkg.mPreferredOrder = 100;
    429         pkg.installLocation = 100;
    430         pkg.coreApp = true;
    431         pkg.mRequiredForAllUsers = true;
    432         pkg.mTrustedOverlay = true;
    433         pkg.use32bitAbi = true;
    434         pkg.packageName = "foo";
    435         pkg.splitNames = new String[] { "foo2" };
    436         pkg.volumeUuid = "foo3";
    437         pkg.codePath = "foo4";
    438         pkg.baseCodePath = "foo5";
    439         pkg.splitCodePaths = new String[] { "foo6" };
    440         pkg.splitRevisionCodes = new int[] { 100 };
    441         pkg.splitFlags = new int[] { 100 };
    442         pkg.splitPrivateFlags = new int[] { 100 };
    443         pkg.applicationInfo = new ApplicationInfo();
    444 
    445         pkg.permissions.add(new PackageParser.Permission(pkg));
    446         pkg.permissionGroups.add(new PackageParser.PermissionGroup(pkg));
    447 
    448         final PackageParser.ParseComponentArgs dummy = new PackageParser.ParseComponentArgs(
    449                 pkg, new String[1], 0, 0, 0, 0, 0, 0, null, 0, 0, 0);
    450 
    451         pkg.activities.add(new PackageParser.Activity(dummy, new ActivityInfo()));
    452         pkg.receivers.add(new PackageParser.Activity(dummy, new ActivityInfo()));
    453         pkg.providers.add(new PackageParser.Provider(dummy, new ProviderInfo()));
    454         pkg.services.add(new PackageParser.Service(dummy, new ServiceInfo()));
    455         pkg.instrumentation.add(new PackageParser.Instrumentation(dummy, new InstrumentationInfo()));
    456         pkg.requestedPermissions.add("foo7");
    457 
    458         pkg.protectedBroadcasts = new ArrayList<>();
    459         pkg.protectedBroadcasts.add("foo8");
    460 
    461         pkg.parentPackage = new PackageParser.Package("foo9");
    462 
    463         pkg.childPackages = new ArrayList<>();
    464         pkg.childPackages.add(new PackageParser.Package("bar"));
    465 
    466         pkg.staticSharedLibName = "foo23";
    467         pkg.staticSharedLibVersion = 100;
    468         pkg.usesStaticLibraries = new ArrayList<>();
    469         pkg.usesStaticLibraries.add("foo23");
    470         pkg.usesStaticLibrariesCertDigests = new String[1][];
    471         pkg.usesStaticLibrariesCertDigests[0] = new String[] { "digest" };
    472         pkg.usesStaticLibrariesVersions = new int[] { 100 };
    473 
    474         pkg.libraryNames = new ArrayList<>();
    475         pkg.libraryNames.add("foo10");
    476 
    477         pkg.usesLibraries = new ArrayList<>();
    478         pkg.usesLibraries.add("foo11");
    479 
    480         pkg.usesOptionalLibraries = new ArrayList<>();
    481         pkg.usesOptionalLibraries.add("foo12");
    482 
    483         pkg.usesLibraryFiles = new String[] { "foo13"};
    484 
    485         pkg.mOriginalPackages = new ArrayList<>();
    486         pkg.mOriginalPackages.add("foo14");
    487 
    488         pkg.mRealPackage = "foo15";
    489 
    490         pkg.mAdoptPermissions = new ArrayList<>();
    491         pkg.mAdoptPermissions.add("foo16");
    492 
    493         pkg.mAppMetaData = new Bundle();
    494         pkg.mVersionName = "foo17";
    495         pkg.mSharedUserId = "foo18";
    496         pkg.mSignatures = new Signature[] { new Signature(new byte[16]) };
    497         pkg.mCertificates = new Certificate[][] { new Certificate[] { null }};
    498         pkg.mExtras = new Bundle();
    499         pkg.mRestrictedAccountType = "foo19";
    500         pkg.mRequiredAccountType = "foo20";
    501         pkg.mOverlayTarget = "foo21";
    502         pkg.mOverlayPriority = 100;
    503         pkg.mSigningKeys = new ArraySet<>();
    504         pkg.mUpgradeKeySets = new ArraySet<>();
    505         pkg.mKeySetMapping = new ArrayMap<>();
    506         pkg.cpuAbiOverride = "foo22";
    507         pkg.restrictUpdateHash = new byte[16];
    508 
    509         pkg.preferredActivityFilters = new ArrayList<>();
    510         pkg.preferredActivityFilters.add(new PackageParser.ActivityIntentInfo(
    511                 new PackageParser.Activity(dummy, new ActivityInfo())));
    512 
    513         pkg.configPreferences = new ArrayList<>();
    514         pkg.configPreferences.add(new ConfigurationInfo());
    515 
    516         pkg.reqFeatures = new ArrayList<>();
    517         pkg.reqFeatures.add(new FeatureInfo());
    518 
    519         pkg.featureGroups = new ArrayList<>();
    520         pkg.featureGroups.add(new FeatureGroupInfo());
    521     }
    522 
    523     private static void assertAllFieldsExist(PackageParser.Package pkg) throws Exception {
    524         Field[] fields = PackageParser.Package.class.getDeclaredFields();
    525 
    526         Set<String> nonSerializedFields = new HashSet<>();
    527         nonSerializedFields.add("mExtras");
    528         nonSerializedFields.add("packageUsageTimeMillis");
    529 
    530         for (Field f : fields) {
    531             final Class<?> fieldType = f.getType();
    532 
    533             if (nonSerializedFields.contains(f.getName())) {
    534                 continue;
    535             }
    536 
    537             if (List.class.isAssignableFrom(fieldType)) {
    538                 // Sanity check for list fields: Assume they're non-null and contain precisely
    539                 // one element.
    540                 List<?> list = (List<?>) f.get(pkg);
    541                 assertNotNull("List was null: " + f, list);
    542                 assertEquals(1, list.size());
    543             } else if (fieldType.getComponentType() != null) {
    544                 // Sanity check for array fields: Assume they're non-null and contain precisely
    545                 // one element.
    546                 Object array = f.get(pkg);
    547                 assertNotNull(Array.get(array, 0));
    548             } else if (fieldType == String.class) {
    549                 // String fields: Check that they're set to "foo".
    550                 String value = (String) f.get(pkg);
    551 
    552                 assertTrue("Bad value for field: " + f, value != null && value.startsWith("foo"));
    553             } else if (fieldType == int.class) {
    554                 // int fields: Check that they're set to 100.
    555                 int value = (int) f.get(pkg);
    556                 assertEquals("Bad value for field: " + f, 100, value);
    557             } else {
    558                 // All other fields: Check that they're set.
    559                 Object o = f.get(pkg);
    560                 assertNotNull("Field was null: " + f, o);
    561             }
    562         }
    563     }
    564 }
    565 
    566