PackageParserTest.java revision 3accca05ddcad9d0b1b313eae49f273e39121d3c 
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 */
16package com.android.server.pm;
17
18import android.content.pm.ActivityInfo;
19import android.content.pm.ApplicationInfo;
20import android.content.pm.ConfigurationInfo;
21import android.content.pm.FeatureGroupInfo;
22import android.content.pm.FeatureInfo;
23import android.content.pm.InstrumentationInfo;
24import android.content.pm.PackageParser;
25import android.content.pm.ProviderInfo;
26import android.content.pm.ServiceInfo;
27import android.content.pm.Signature;
28import android.os.Bundle;
29import android.os.Parcel;
30import android.support.test.runner.AndroidJUnit4;
31import android.test.suitebuilder.annotation.MediumTest;
32
33import java.io.File;
34import java.lang.reflect.Array;
35import java.lang.reflect.Field;
36import java.nio.charset.StandardCharsets;
37import java.security.cert.Certificate;
38import java.util.ArrayList;
39import java.util.Arrays;
40import java.util.HashSet;
41import java.util.List;
42import java.util.Set;
43
44import static org.junit.Assert.*;
45
46import android.util.ArrayMap;
47import android.util.ArraySet;
48import org.junit.Before;
49import org.junit.Test;
50import org.junit.runner.RunWith;
51
52import libcore.io.IoUtils;
53
54@RunWith(AndroidJUnit4.class)
55@MediumTest
56public 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.mCompileSdkVersion, b.mCompileSdkVersion);
201        assertEquals(a.mCompileSdkVersionCodename, b.mCompileSdkVersionCodename);
202        assertEquals(a.use32bitAbi, b.use32bitAbi);
203        assertEquals(a.packageName, b.packageName);
204        assertTrue(Arrays.equals(a.splitNames, b.splitNames));
205        assertEquals(a.volumeUuid, b.volumeUuid);
206        assertEquals(a.codePath, b.codePath);
207        assertEquals(a.baseCodePath, b.baseCodePath);
208        assertTrue(Arrays.equals(a.splitCodePaths, b.splitCodePaths));
209        assertTrue(Arrays.equals(a.splitRevisionCodes, b.splitRevisionCodes));
210        assertTrue(Arrays.equals(a.splitFlags, b.splitFlags));
211        assertTrue(Arrays.equals(a.splitPrivateFlags, b.splitPrivateFlags));
212        assertApplicationInfoEqual(a.applicationInfo, b.applicationInfo);
213
214        assertEquals(a.permissions.size(), b.permissions.size());
215        for (int i = 0; i < a.permissions.size(); ++i) {
216            assertPermissionsEqual(a.permissions.get(i), b.permissions.get(i));
217            assertSame(a.permissions.get(i).owner, a);
218            assertSame(b.permissions.get(i).owner, b);
219        }
220
221        assertEquals(a.permissionGroups.size(), b.permissionGroups.size());
222        for (int i = 0; i < a.permissionGroups.size(); ++i) {
223            assertPermissionGroupsEqual(a.permissionGroups.get(i), b.permissionGroups.get(i));
224        }
225
226        assertEquals(a.activities.size(), b.activities.size());
227        for (int i = 0; i < a.activities.size(); ++i) {
228            assertActivitiesEqual(a.activities.get(i), b.activities.get(i));
229        }
230
231        assertEquals(a.receivers.size(), b.receivers.size());
232        for (int i = 0; i < a.receivers.size(); ++i) {
233            assertActivitiesEqual(a.receivers.get(i), b.receivers.get(i));
234        }
235
236        assertEquals(a.providers.size(), b.providers.size());
237        for (int i = 0; i < a.providers.size(); ++i) {
238            assertProvidersEqual(a.providers.get(i), b.providers.get(i));
239        }
240
241        assertEquals(a.services.size(), b.services.size());
242        for (int i = 0; i < a.services.size(); ++i) {
243            assertServicesEqual(a.services.get(i), b.services.get(i));
244        }
245
246        assertEquals(a.instrumentation.size(), b.instrumentation.size());
247        for (int i = 0; i < a.instrumentation.size(); ++i) {
248            assertInstrumentationEqual(a.instrumentation.get(i), b.instrumentation.get(i));
249        }
250
251        assertEquals(a.requestedPermissions, b.requestedPermissions);
252        assertEquals(a.protectedBroadcasts, b.protectedBroadcasts);
253        assertEquals(a.parentPackage, b.parentPackage);
254        assertEquals(a.childPackages, b.childPackages);
255        assertEquals(a.libraryNames, b.libraryNames);
256        assertEquals(a.usesLibraries, b.usesLibraries);
257        assertEquals(a.usesOptionalLibraries, b.usesOptionalLibraries);
258        assertTrue(Arrays.equals(a.usesLibraryFiles, b.usesLibraryFiles));
259        assertEquals(a.mOriginalPackages, b.mOriginalPackages);
260        assertEquals(a.mRealPackage, b.mRealPackage);
261        assertEquals(a.mAdoptPermissions, b.mAdoptPermissions);
262        assertBundleApproximateEquals(a.mAppMetaData, b.mAppMetaData);
263        assertEquals(a.mVersionName, b.mVersionName);
264        assertEquals(a.mSharedUserId, b.mSharedUserId);
265        assertTrue(Arrays.equals(a.mSignatures, b.mSignatures));
266        assertTrue(Arrays.equals(a.mCertificates, b.mCertificates));
267        assertTrue(Arrays.equals(a.mLastPackageUsageTimeInMills, b.mLastPackageUsageTimeInMills));
268        assertEquals(a.mExtras, b.mExtras);
269        assertEquals(a.mRestrictedAccountType, b.mRestrictedAccountType);
270        assertEquals(a.mRequiredAccountType, b.mRequiredAccountType);
271        assertEquals(a.mOverlayTarget, b.mOverlayTarget);
272        assertEquals(a.mSigningKeys, b.mSigningKeys);
273        assertEquals(a.mUpgradeKeySets, b.mUpgradeKeySets);
274        assertEquals(a.mKeySetMapping, b.mKeySetMapping);
275        assertEquals(a.cpuAbiOverride, b.cpuAbiOverride);
276        assertTrue(Arrays.equals(a.restrictUpdateHash, b.restrictUpdateHash));
277    }
278
279    private static void assertBundleApproximateEquals(Bundle a, Bundle b) {
280        if (a == b) {
281            return;
282        }
283
284        // Force the bundles to be unparceled.
285        a.getBoolean("foo");
286        b.getBoolean("foo");
287
288        assertEquals(a.toString(), b.toString());
289    }
290
291    private static void assertComponentsEqual(PackageParser.Component<?> a,
292                                              PackageParser.Component<?> b) {
293        assertEquals(a.className, b.className);
294        assertBundleApproximateEquals(a.metaData, b.metaData);
295        assertEquals(a.getComponentName(), b.getComponentName());
296
297        if (a.intents != null && b.intents != null) {
298            assertEquals(a.intents.size(), b.intents.size());
299        } else if (a.intents == null || b.intents == null) {
300            return;
301        }
302
303        for (int i = 0; i < a.intents.size(); ++i) {
304            PackageParser.IntentInfo aIntent = a.intents.get(i);
305            PackageParser.IntentInfo bIntent = b.intents.get(i);
306
307            assertEquals(aIntent.hasDefault, bIntent.hasDefault);
308            assertEquals(aIntent.labelRes, bIntent.labelRes);
309            assertEquals(aIntent.nonLocalizedLabel, bIntent.nonLocalizedLabel);
310            assertEquals(aIntent.icon, bIntent.icon);
311            assertEquals(aIntent.logo, bIntent.logo);
312            assertEquals(aIntent.banner, bIntent.banner);
313            assertEquals(aIntent.preferred, bIntent.preferred);
314        }
315    }
316
317    private static void assertPermissionsEqual(PackageParser.Permission a,
318                                               PackageParser.Permission b) {
319        assertComponentsEqual(a, b);
320        assertEquals(a.tree, b.tree);
321
322        // Verify basic flags in PermissionInfo to make sure they're consistent. We don't perform
323        // a full structural equality here because the code that serializes them isn't parser
324        // specific and is tested elsewhere.
325        assertEquals(a.info.protectionLevel, b.info.protectionLevel);
326        assertEquals(a.info.group, b.info.group);
327        assertEquals(a.info.flags, b.info.flags);
328
329        if (a.group != null && b.group != null) {
330            assertPermissionGroupsEqual(a.group, b.group);
331        } else if (a.group != null || b.group != null) {
332            throw new AssertionError();
333        }
334    }
335
336    private static void assertInstrumentationEqual(PackageParser.Instrumentation a,
337                                                   PackageParser.Instrumentation b) {
338        assertComponentsEqual(a, b);
339
340        // Sanity check for InstrumentationInfo.
341        assertEquals(a.info.targetPackage, b.info.targetPackage);
342        assertEquals(a.info.targetProcesses, b.info.targetProcesses);
343        assertEquals(a.info.sourceDir, b.info.sourceDir);
344        assertEquals(a.info.publicSourceDir, b.info.publicSourceDir);
345    }
346
347    private static void assertServicesEqual(PackageParser.Service a, PackageParser.Service b) {
348        assertComponentsEqual(a, b);
349
350        // Sanity check for ServiceInfo.
351        assertApplicationInfoEqual(a.info.applicationInfo, b.info.applicationInfo);
352        assertEquals(a.info.name, b.info.name);
353    }
354
355    private static void assertProvidersEqual(PackageParser.Provider a, PackageParser.Provider b) {
356        assertComponentsEqual(a, b);
357
358        // Sanity check for ProviderInfo
359        assertApplicationInfoEqual(a.info.applicationInfo, b.info.applicationInfo);
360        assertEquals(a.info.name, b.info.name);
361    }
362
363    private static void assertActivitiesEqual(PackageParser.Activity a, PackageParser.Activity b) {
364        assertComponentsEqual(a, b);
365
366        // Sanity check for ActivityInfo.
367        assertApplicationInfoEqual(a.info.applicationInfo, b.info.applicationInfo);
368        assertEquals(a.info.name, b.info.name);
369    }
370
371    private static void assertPermissionGroupsEqual(PackageParser.PermissionGroup a,
372                                                    PackageParser.PermissionGroup b) {
373        assertComponentsEqual(a, b);
374
375        // Sanity check for PermissionGroupInfo.
376        assertEquals(a.info.name, b.info.name);
377        assertEquals(a.info.descriptionRes, b.info.descriptionRes);
378    }
379
380    private static void assertApplicationInfoEqual(ApplicationInfo a, ApplicationInfo that) {
381        assertEquals(a.descriptionRes, that.descriptionRes);
382        assertEquals(a.theme, that.theme);
383        assertEquals(a.fullBackupContent, that.fullBackupContent);
384        assertEquals(a.uiOptions, that.uiOptions);
385        assertEquals(a.flags, that.flags);
386        assertEquals(a.privateFlags, that.privateFlags);
387        assertEquals(a.requiresSmallestWidthDp, that.requiresSmallestWidthDp);
388        assertEquals(a.compatibleWidthLimitDp, that.compatibleWidthLimitDp);
389        assertEquals(a.largestWidthLimitDp, that.largestWidthLimitDp);
390        assertEquals(a.nativeLibraryRootRequiresIsa, that.nativeLibraryRootRequiresIsa);
391        assertEquals(a.uid, that.uid);
392        assertEquals(a.minSdkVersion, that.minSdkVersion);
393        assertEquals(a.targetSdkVersion, that.targetSdkVersion);
394        assertEquals(a.versionCode, that.versionCode);
395        assertEquals(a.enabled, that.enabled);
396        assertEquals(a.enabledSetting, that.enabledSetting);
397        assertEquals(a.installLocation, that.installLocation);
398        assertEquals(a.networkSecurityConfigRes, that.networkSecurityConfigRes);
399        assertEquals(a.taskAffinity, that.taskAffinity);
400        assertEquals(a.permission, that.permission);
401        assertEquals(a.processName, that.processName);
402        assertEquals(a.className, that.className);
403        assertEquals(a.manageSpaceActivityName, that.manageSpaceActivityName);
404        assertEquals(a.backupAgentName, that.backupAgentName);
405        assertEquals(a.volumeUuid, that.volumeUuid);
406        assertEquals(a.scanSourceDir, that.scanSourceDir);
407        assertEquals(a.scanPublicSourceDir, that.scanPublicSourceDir);
408        assertEquals(a.sourceDir, that.sourceDir);
409        assertEquals(a.publicSourceDir, that.publicSourceDir);
410        assertTrue(Arrays.equals(a.splitSourceDirs, that.splitSourceDirs));
411        assertTrue(Arrays.equals(a.splitPublicSourceDirs, that.splitPublicSourceDirs));
412        assertTrue(Arrays.equals(a.resourceDirs, that.resourceDirs));
413        assertEquals(a.seInfo, that.seInfo);
414        assertTrue(Arrays.equals(a.sharedLibraryFiles, that.sharedLibraryFiles));
415        assertEquals(a.dataDir, that.dataDir);
416        assertEquals(a.deviceProtectedDataDir, that.deviceProtectedDataDir);
417        assertEquals(a.credentialProtectedDataDir, that.credentialProtectedDataDir);
418        assertEquals(a.nativeLibraryDir, that.nativeLibraryDir);
419        assertEquals(a.secondaryNativeLibraryDir, that.secondaryNativeLibraryDir);
420        assertEquals(a.nativeLibraryRootDir, that.nativeLibraryRootDir);
421        assertEquals(a.primaryCpuAbi, that.primaryCpuAbi);
422        assertEquals(a.secondaryCpuAbi, that.secondaryCpuAbi);
423    }
424
425    public static void setKnownFields(PackageParser.Package pkg) {
426        pkg.baseRevisionCode = 100;
427        pkg.baseHardwareAccelerated = true;
428        pkg.mVersionCode = 100;
429        pkg.mSharedUserLabel = 100;
430        pkg.mPreferredOrder = 100;
431        pkg.installLocation = 100;
432        pkg.coreApp = true;
433        pkg.mRequiredForAllUsers = true;
434        pkg.mTrustedOverlay = true;
435        pkg.use32bitAbi = true;
436        pkg.packageName = "foo";
437        pkg.splitNames = new String[] { "foo2" };
438        pkg.volumeUuid = "foo3";
439        pkg.codePath = "foo4";
440        pkg.baseCodePath = "foo5";
441        pkg.splitCodePaths = new String[] { "foo6" };
442        pkg.splitRevisionCodes = new int[] { 100 };
443        pkg.splitFlags = new int[] { 100 };
444        pkg.splitPrivateFlags = new int[] { 100 };
445        pkg.applicationInfo = new ApplicationInfo();
446
447        pkg.permissions.add(new PackageParser.Permission(pkg));
448        pkg.permissionGroups.add(new PackageParser.PermissionGroup(pkg));
449
450        final PackageParser.ParseComponentArgs dummy = new PackageParser.ParseComponentArgs(
451                pkg, new String[1], 0, 0, 0, 0, 0, 0, null, 0, 0, 0);
452
453        pkg.activities.add(new PackageParser.Activity(dummy, new ActivityInfo()));
454        pkg.receivers.add(new PackageParser.Activity(dummy, new ActivityInfo()));
455        pkg.providers.add(new PackageParser.Provider(dummy, new ProviderInfo()));
456        pkg.services.add(new PackageParser.Service(dummy, new ServiceInfo()));
457        pkg.instrumentation.add(new PackageParser.Instrumentation(dummy, new InstrumentationInfo()));
458        pkg.requestedPermissions.add("foo7");
459
460        pkg.protectedBroadcasts = new ArrayList<>();
461        pkg.protectedBroadcasts.add("foo8");
462
463        pkg.parentPackage = new PackageParser.Package("foo9");
464
465        pkg.childPackages = new ArrayList<>();
466        pkg.childPackages.add(new PackageParser.Package("bar"));
467
468        pkg.staticSharedLibName = "foo23";
469        pkg.staticSharedLibVersion = 100;
470        pkg.usesStaticLibraries = new ArrayList<>();
471        pkg.usesStaticLibraries.add("foo23");
472        pkg.usesStaticLibrariesCertDigests = new String[1][];
473        pkg.usesStaticLibrariesCertDigests[0] = new String[] { "digest" };
474        pkg.usesStaticLibrariesVersions = new long[] { 100 };
475
476        pkg.libraryNames = new ArrayList<>();
477        pkg.libraryNames.add("foo10");
478
479        pkg.usesLibraries = new ArrayList<>();
480        pkg.usesLibraries.add("foo11");
481
482        pkg.usesOptionalLibraries = new ArrayList<>();
483        pkg.usesOptionalLibraries.add("foo12");
484
485        pkg.usesLibraryFiles = new String[] { "foo13"};
486
487        pkg.mOriginalPackages = new ArrayList<>();
488        pkg.mOriginalPackages.add("foo14");
489
490        pkg.mRealPackage = "foo15";
491
492        pkg.mAdoptPermissions = new ArrayList<>();
493        pkg.mAdoptPermissions.add("foo16");
494
495        pkg.mAppMetaData = new Bundle();
496        pkg.mVersionName = "foo17";
497        pkg.mSharedUserId = "foo18";
498        pkg.mSignatures = new Signature[] { new Signature(new byte[16]) };
499        pkg.mCertificates = new Certificate[][] { new Certificate[] { null }};
500        pkg.mExtras = new Bundle();
501        pkg.mRestrictedAccountType = "foo19";
502        pkg.mRequiredAccountType = "foo20";
503        pkg.mOverlayTarget = "foo21";
504        pkg.mOverlayPriority = 100;
505        pkg.mSigningKeys = new ArraySet<>();
506        pkg.mUpgradeKeySets = new ArraySet<>();
507        pkg.mKeySetMapping = new ArrayMap<>();
508        pkg.cpuAbiOverride = "foo22";
509        pkg.restrictUpdateHash = new byte[16];
510
511        pkg.preferredActivityFilters = new ArrayList<>();
512        pkg.preferredActivityFilters.add(new PackageParser.ActivityIntentInfo(
513                new PackageParser.Activity(dummy, new ActivityInfo())));
514
515        pkg.configPreferences = new ArrayList<>();
516        pkg.configPreferences.add(new ConfigurationInfo());
517
518        pkg.reqFeatures = new ArrayList<>();
519        pkg.reqFeatures.add(new FeatureInfo());
520
521        pkg.featureGroups = new ArrayList<>();
522        pkg.featureGroups.add(new FeatureGroupInfo());
523    }
524
525    private static void assertAllFieldsExist(PackageParser.Package pkg) throws Exception {
526        Field[] fields = PackageParser.Package.class.getDeclaredFields();
527
528        Set<String> nonSerializedFields = new HashSet<>();
529        nonSerializedFields.add("mExtras");
530        nonSerializedFields.add("packageUsageTimeMillis");
531
532        for (Field f : fields) {
533            final Class<?> fieldType = f.getType();
534
535            if (nonSerializedFields.contains(f.getName())) {
536                continue;
537            }
538
539            if (List.class.isAssignableFrom(fieldType)) {
540                // Sanity check for list fields: Assume they're non-null and contain precisely
541                // one element.
542                List<?> list = (List<?>) f.get(pkg);
543                assertNotNull("List was null: " + f, list);
544                assertEquals(1, list.size());
545            } else if (fieldType.getComponentType() != null) {
546                // Sanity check for array fields: Assume they're non-null and contain precisely
547                // one element.
548                Object array = f.get(pkg);
549                assertNotNull(Array.get(array, 0));
550            } else if (fieldType == String.class) {
551                // String fields: Check that they're set to "foo".
552                String value = (String) f.get(pkg);
553
554                assertTrue("Bad value for field: " + f, value != null && value.startsWith("foo"));
555            } else if (fieldType == int.class) {
556                // int fields: Check that they're set to 100.
557                int value = (int) f.get(pkg);
558                assertEquals("Bad value for field: " + f, 100, value);
559            } else {
560                // All other fields: Check that they're set.
561                Object o = f.get(pkg);
562                assertNotNull("Field was null: " + f, o);
563            }
564        }
565    }
566}
567
568