PackageParserTest.java revision 21a3d1ad686dee97b9cf0ed80389ee2ab0d48013 
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.annotation.TestApi;
19import android.content.pm.ActivityInfo;
20import android.content.pm.ApplicationInfo;
21import android.content.pm.ConfigurationInfo;
22import android.content.pm.FeatureGroupInfo;
23import android.content.pm.FeatureInfo;
24import android.content.pm.InstrumentationInfo;
25import android.content.pm.PackageParser;
26import android.content.pm.ProviderInfo;
27import android.content.pm.ServiceInfo;
28import android.content.pm.Signature;
29import android.os.Bundle;
30import android.os.Parcel;
31import android.support.test.runner.AndroidJUnit4;
32import android.test.suitebuilder.annotation.MediumTest;
33
34import java.io.File;
35import java.lang.reflect.Array;
36import java.lang.reflect.Field;
37import java.nio.charset.StandardCharsets;
38import java.security.cert.Certificate;
39import java.util.ArrayList;
40import java.util.Arrays;
41import java.util.HashSet;
42import java.util.List;
43import java.util.Set;
44
45import static org.junit.Assert.*;
46
47import android.util.ArrayMap;
48import android.util.ArraySet;
49import org.junit.Before;
50import org.junit.Test;
51import org.junit.runner.RunWith;
52
53import libcore.io.IoUtils;
54
55@RunWith(AndroidJUnit4.class)
56@MediumTest
57public class PackageParserTest {
58    private File mTmpDir;
59    private static final File FRAMEWORK = new File("/system/framework/framework-res.apk");
60
61    @Before
62    public void setUp() {
63        // Create a new temporary directory for each of our tests.
64        mTmpDir = IoUtils.createTemporaryDirectory("PackageParserTest");
65    }
66
67    @Test
68    public void testParse_noCache() throws Exception {
69        PackageParser pp = new CachePackageNameParser();
70        PackageParser.Package pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */,
71                false /* useCaches */);
72        assertNotNull(pkg);
73
74        pp.setCacheDir(mTmpDir);
75        pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */,
76                false /* useCaches */);
77        assertNotNull(pkg);
78
79        // Make sure that we always write out a cache entry for future reference,
80        // whether or not we're asked to use caches.
81        assertEquals(1, mTmpDir.list().length);
82    }
83
84    @Test
85    public void testParse_withCache() throws Exception {
86        PackageParser pp = new CachePackageNameParser();
87
88        pp.setCacheDir(mTmpDir);
89        // The first parse will write this package to the cache.
90        pp.parsePackage(FRAMEWORK, 0 /* parseFlags */, true /* useCaches */);
91
92        // Now attempt to parse the package again, should return the
93        // cached result.
94        PackageParser.Package pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */,
95                true /* useCaches */);
96        assertEquals("cache_android", pkg.packageName);
97
98        // Try again, with useCaches == false, shouldn't return the parsed
99        // result.
100        pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */, false /* useCaches */);
101        assertEquals("android", pkg.packageName);
102
103        // We haven't set a cache directory here : the parse should still succeed,
104        // just not using the cached results.
105        pp = new CachePackageNameParser();
106        pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */, true /* useCaches */);
107        assertEquals("android", pkg.packageName);
108
109        pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */, false /* useCaches */);
110        assertEquals("android", pkg.packageName);
111    }
112
113    @Test
114    public void test_serializePackage() throws Exception {
115        PackageParser pp = new PackageParser();
116        pp.setCacheDir(mTmpDir);
117
118        PackageParser.Package pkg = pp.parsePackage(FRAMEWORK, 0 /* parseFlags */,
119            true /* useCaches */);
120
121        Parcel p = Parcel.obtain();
122        pkg.writeToParcel(p, 0 /* flags */);
123
124        p.setDataPosition(0);
125        PackageParser.Package deserialized = new PackageParser.Package(p);
126
127        assertPackagesEqual(pkg, deserialized);
128    }
129
130    @Test
131    public void test_roundTripKnownFields() throws Exception {
132        PackageParser.Package pkg = new PackageParser.Package("foo");
133        setKnownFields(pkg);
134
135        Parcel p = Parcel.obtain();
136        pkg.writeToParcel(p, 0 /* flags */);
137
138        p.setDataPosition(0);
139        PackageParser.Package deserialized = new PackageParser.Package(p);
140        assertAllFieldsExist(deserialized);
141    }
142
143    @Test
144    public void test_stringInterning() throws Exception {
145        PackageParser.Package pkg = new PackageParser.Package("foo");
146        setKnownFields(pkg);
147
148        Parcel p = Parcel.obtain();
149        pkg.writeToParcel(p, 0 /* flags */);
150
151        p.setDataPosition(0);
152        PackageParser.Package deserialized = new PackageParser.Package(p);
153
154        p.setDataPosition(0);
155        PackageParser.Package deserialized2 = new PackageParser.Package(p);
156
157        assertSame(deserialized.packageName, deserialized2.packageName);
158        assertSame(deserialized.applicationInfo.permission,
159                deserialized2.applicationInfo.permission);
160        assertSame(deserialized.requestedPermissions.get(0),
161                deserialized2.requestedPermissions.get(0));
162        assertSame(deserialized.protectedBroadcasts.get(0),
163                deserialized2.protectedBroadcasts.get(0));
164        assertSame(deserialized.usesLibraries.get(0),
165                deserialized2.usesLibraries.get(0));
166        assertSame(deserialized.usesOptionalLibraries.get(0),
167                deserialized2.usesOptionalLibraries.get(0));
168        assertSame(deserialized.mVersionName, deserialized2.mVersionName);
169        assertSame(deserialized.mSharedUserId, deserialized2.mSharedUserId);
170    }
171
172
173    /**
174     * A trivial subclass of package parser that only caches the package name, and throws away
175     * all other information.
176     */
177    public static class CachePackageNameParser extends PackageParser {
178        @Override
179        public byte[] toCacheEntry(Package pkg) {
180            return ("cache_" + pkg.packageName).getBytes(StandardCharsets.UTF_8);
181        }
182
183        @Override
184        public Package fromCacheEntry(byte[] cacheEntry) {
185            return new Package(new String(cacheEntry, StandardCharsets.UTF_8));
186        }
187    }
188
189    // NOTE: The equality assertions below are based on code autogenerated by IntelliJ.
190
191    public static void assertPackagesEqual(PackageParser.Package a, PackageParser.Package b) {
192        assertEquals(a.baseRevisionCode, b.baseRevisionCode);
193        assertEquals(a.baseHardwareAccelerated, b.baseHardwareAccelerated);
194        assertEquals(a.mVersionCode, b.mVersionCode);
195        assertEquals(a.mSharedUserLabel, b.mSharedUserLabel);
196        assertEquals(a.mPreferredOrder, b.mPreferredOrder);
197        assertEquals(a.installLocation, b.installLocation);
198        assertEquals(a.coreApp, b.coreApp);
199        assertEquals(a.mRequiredForAllUsers, b.mRequiredForAllUsers);
200        assertEquals(a.mTrustedOverlay, b.mTrustedOverlay);
201        assertEquals(a.use32bitAbi, b.use32bitAbi);
202        assertEquals(a.packageName, b.packageName);
203        assertTrue(Arrays.equals(a.splitNames, b.splitNames));
204        assertEquals(a.volumeUuid, b.volumeUuid);
205        assertEquals(a.codePath, b.codePath);
206        assertEquals(a.baseCodePath, b.baseCodePath);
207        assertTrue(Arrays.equals(a.splitCodePaths, b.splitCodePaths));
208        assertTrue(Arrays.equals(a.splitRevisionCodes, b.splitRevisionCodes));
209        assertTrue(Arrays.equals(a.splitFlags, b.splitFlags));
210        assertTrue(Arrays.equals(a.splitPrivateFlags, b.splitPrivateFlags));
211        assertApplicationInfoEqual(a.applicationInfo, b.applicationInfo);
212
213        assertEquals(a.permissions.size(), b.permissions.size());
214        for (int i = 0; i < a.permissions.size(); ++i) {
215            assertPermissionsEqual(a.permissions.get(i), b.permissions.get(i));
216            assertSame(a.permissions.get(i).owner, a);
217            assertSame(b.permissions.get(i).owner, b);
218        }
219
220        assertEquals(a.permissionGroups.size(), b.permissionGroups.size());
221        for (int i = 0; i < a.permissionGroups.size(); ++i) {
222            assertPermissionGroupsEqual(a.permissionGroups.get(i), b.permissionGroups.get(i));
223        }
224
225        assertEquals(a.activities.size(), b.activities.size());
226        for (int i = 0; i < a.activities.size(); ++i) {
227            assertActivitiesEqual(a.activities.get(i), b.activities.get(i));
228        }
229
230        assertEquals(a.receivers.size(), b.receivers.size());
231        for (int i = 0; i < a.receivers.size(); ++i) {
232            assertActivitiesEqual(a.receivers.get(i), b.receivers.get(i));
233        }
234
235        assertEquals(a.providers.size(), b.providers.size());
236        for (int i = 0; i < a.providers.size(); ++i) {
237            assertProvidersEqual(a.providers.get(i), b.providers.get(i));
238        }
239
240        assertEquals(a.services.size(), b.services.size());
241        for (int i = 0; i < a.services.size(); ++i) {
242            assertServicesEqual(a.services.get(i), b.services.get(i));
243        }
244
245        assertEquals(a.instrumentation.size(), b.instrumentation.size());
246        for (int i = 0; i < a.instrumentation.size(); ++i) {
247            assertInstrumentationEqual(a.instrumentation.get(i), b.instrumentation.get(i));
248        }
249
250        assertEquals(a.requestedPermissions, b.requestedPermissions);
251        assertEquals(a.protectedBroadcasts, b.protectedBroadcasts);
252        assertEquals(a.parentPackage, b.parentPackage);
253        assertEquals(a.childPackages, b.childPackages);
254        assertEquals(a.libraryNames, b.libraryNames);
255        assertEquals(a.usesLibraries, b.usesLibraries);
256        assertEquals(a.usesOptionalLibraries, b.usesOptionalLibraries);
257        assertTrue(Arrays.equals(a.usesLibraryFiles, b.usesLibraryFiles));
258        assertEquals(a.mOriginalPackages, b.mOriginalPackages);
259        assertEquals(a.mRealPackage, b.mRealPackage);
260        assertEquals(a.mAdoptPermissions, b.mAdoptPermissions);
261        assertBundleApproximateEquals(a.mAppMetaData, b.mAppMetaData);
262        assertEquals(a.mVersionName, b.mVersionName);
263        assertEquals(a.mSharedUserId, b.mSharedUserId);
264        assertTrue(Arrays.equals(a.mSignatures, b.mSignatures));
265        assertTrue(Arrays.equals(a.mCertificates, b.mCertificates));
266        assertTrue(Arrays.equals(a.mLastPackageUsageTimeInMills, b.mLastPackageUsageTimeInMills));
267        assertEquals(a.mExtras, b.mExtras);
268        assertEquals(a.mRestrictedAccountType, b.mRestrictedAccountType);
269        assertEquals(a.mRequiredAccountType, b.mRequiredAccountType);
270        assertEquals(a.mOverlayTarget, b.mOverlayTarget);
271        assertEquals(a.mSigningKeys, b.mSigningKeys);
272        assertEquals(a.mUpgradeKeySets, b.mUpgradeKeySets);
273        assertEquals(a.mKeySetMapping, b.mKeySetMapping);
274        assertEquals(a.cpuAbiOverride, b.cpuAbiOverride);
275        assertTrue(Arrays.equals(a.restrictUpdateHash, b.restrictUpdateHash));
276    }
277
278    private static void assertBundleApproximateEquals(Bundle a, Bundle b) {
279        if (a == b) {
280            return;
281        }
282
283        // Force the bundles to be unparceled.
284        a.getBoolean("foo");
285        b.getBoolean("foo");
286
287        assertEquals(a.toString(), b.toString());
288    }
289
290    private static void assertComponentsEqual(PackageParser.Component<?> a,
291                                              PackageParser.Component<?> b) {
292        assertEquals(a.className, b.className);
293        assertBundleApproximateEquals(a.metaData, b.metaData);
294        assertEquals(a.getComponentName(), b.getComponentName());
295
296        if (a.intents != null && b.intents != null) {
297            assertEquals(a.intents.size(), b.intents.size());
298        } else if (a.intents == null || b.intents == null) {
299            return;
300        }
301
302        for (int i = 0; i < a.intents.size(); ++i) {
303            PackageParser.IntentInfo aIntent = a.intents.get(i);
304            PackageParser.IntentInfo bIntent = b.intents.get(i);
305
306            assertEquals(aIntent.hasDefault, bIntent.hasDefault);
307            assertEquals(aIntent.labelRes, bIntent.labelRes);
308            assertEquals(aIntent.nonLocalizedLabel, bIntent.nonLocalizedLabel);
309            assertEquals(aIntent.icon, bIntent.icon);
310            assertEquals(aIntent.logo, bIntent.logo);
311            assertEquals(aIntent.banner, bIntent.banner);
312            assertEquals(aIntent.preferred, bIntent.preferred);
313        }
314    }
315
316    private static void assertPermissionsEqual(PackageParser.Permission a,
317                                               PackageParser.Permission b) {
318        assertComponentsEqual(a, b);
319        assertEquals(a.tree, b.tree);
320
321        // Verify basic flags in PermissionInfo to make sure they're consistent. We don't perform
322        // a full structural equality here because the code that serializes them isn't parser
323        // specific and is tested elsewhere.
324        assertEquals(a.info.protectionLevel, b.info.protectionLevel);
325        assertEquals(a.info.group, b.info.group);
326        assertEquals(a.info.flags, b.info.flags);
327
328        if (a.group != null && b.group != null) {
329            assertPermissionGroupsEqual(a.group, b.group);
330        } else if (a.group != null || b.group != null) {
331            throw new AssertionError();
332        }
333    }
334
335    private static void assertInstrumentationEqual(PackageParser.Instrumentation a,
336                                                   PackageParser.Instrumentation b) {
337        assertComponentsEqual(a, b);
338
339        // Sanity check for InstrumentationInfo.
340        assertEquals(a.info.targetPackage, b.info.targetPackage);
341        assertEquals(a.info.targetProcess, b.info.targetProcess);
342        assertEquals(a.info.sourceDir, b.info.sourceDir);
343        assertEquals(a.info.publicSourceDir, b.info.publicSourceDir);
344    }
345
346    private static void assertServicesEqual(PackageParser.Service a, PackageParser.Service b) {
347        assertComponentsEqual(a, b);
348
349        // Sanity check for ServiceInfo.
350        assertApplicationInfoEqual(a.info.applicationInfo, b.info.applicationInfo);
351        assertEquals(a.info.name, b.info.name);
352    }
353
354    private static void assertProvidersEqual(PackageParser.Provider a, PackageParser.Provider b) {
355        assertComponentsEqual(a, b);
356
357        // Sanity check for ProviderInfo
358        assertApplicationInfoEqual(a.info.applicationInfo, b.info.applicationInfo);
359        assertEquals(a.info.name, b.info.name);
360    }
361
362    private static void assertActivitiesEqual(PackageParser.Activity a, PackageParser.Activity b) {
363        assertComponentsEqual(a, b);
364
365        // Sanity check for ActivityInfo.
366        assertApplicationInfoEqual(a.info.applicationInfo, b.info.applicationInfo);
367        assertEquals(a.info.name, b.info.name);
368    }
369
370    private static void assertPermissionGroupsEqual(PackageParser.PermissionGroup a,
371                                                    PackageParser.PermissionGroup b) {
372        assertComponentsEqual(a, b);
373
374        // Sanity check for PermissionGroupInfo.
375        assertEquals(a.info.name, b.info.name);
376        assertEquals(a.info.descriptionRes, b.info.descriptionRes);
377    }
378
379    private static void assertApplicationInfoEqual(ApplicationInfo a, ApplicationInfo that) {
380        assertEquals(a.descriptionRes, that.descriptionRes);
381        assertEquals(a.theme, that.theme);
382        assertEquals(a.fullBackupContent, that.fullBackupContent);
383        assertEquals(a.uiOptions, that.uiOptions);
384        assertEquals(a.flags, that.flags);
385        assertEquals(a.privateFlags, that.privateFlags);
386        assertEquals(a.requiresSmallestWidthDp, that.requiresSmallestWidthDp);
387        assertEquals(a.compatibleWidthLimitDp, that.compatibleWidthLimitDp);
388        assertEquals(a.largestWidthLimitDp, that.largestWidthLimitDp);
389        assertEquals(a.nativeLibraryRootRequiresIsa, that.nativeLibraryRootRequiresIsa);
390        assertEquals(a.uid, that.uid);
391        assertEquals(a.minSdkVersion, that.minSdkVersion);
392        assertEquals(a.targetSdkVersion, that.targetSdkVersion);
393        assertEquals(a.versionCode, that.versionCode);
394        assertEquals(a.enabled, that.enabled);
395        assertEquals(a.enabledSetting, that.enabledSetting);
396        assertEquals(a.installLocation, that.installLocation);
397        assertEquals(a.networkSecurityConfigRes, that.networkSecurityConfigRes);
398        assertEquals(a.taskAffinity, that.taskAffinity);
399        assertEquals(a.permission, that.permission);
400        assertEquals(a.processName, that.processName);
401        assertEquals(a.className, that.className);
402        assertEquals(a.manageSpaceActivityName, that.manageSpaceActivityName);
403        assertEquals(a.backupAgentName, that.backupAgentName);
404        assertEquals(a.volumeUuid, that.volumeUuid);
405        assertEquals(a.scanSourceDir, that.scanSourceDir);
406        assertEquals(a.scanPublicSourceDir, that.scanPublicSourceDir);
407        assertEquals(a.sourceDir, that.sourceDir);
408        assertEquals(a.publicSourceDir, that.publicSourceDir);
409        assertTrue(Arrays.equals(a.splitSourceDirs, that.splitSourceDirs));
410        assertTrue(Arrays.equals(a.splitPublicSourceDirs, that.splitPublicSourceDirs));
411        assertTrue(Arrays.equals(a.resourceDirs, that.resourceDirs));
412        assertEquals(a.seInfo, that.seInfo);
413        assertTrue(Arrays.equals(a.sharedLibraryFiles, that.sharedLibraryFiles));
414        assertEquals(a.dataDir, that.dataDir);
415        assertEquals(a.deviceProtectedDataDir, that.deviceProtectedDataDir);
416        assertEquals(a.deviceEncryptedDataDir, that.deviceEncryptedDataDir);
417        assertEquals(a.credentialProtectedDataDir, that.credentialProtectedDataDir);
418        assertEquals(a.credentialEncryptedDataDir, that.credentialEncryptedDataDir);
419        assertEquals(a.nativeLibraryDir, that.nativeLibraryDir);
420        assertEquals(a.secondaryNativeLibraryDir, that.secondaryNativeLibraryDir);
421        assertEquals(a.nativeLibraryRootDir, that.nativeLibraryRootDir);
422        assertEquals(a.primaryCpuAbi, that.primaryCpuAbi);
423        assertEquals(a.secondaryCpuAbi, that.secondaryCpuAbi);
424    }
425
426    public static void setKnownFields(PackageParser.Package pkg) {
427        pkg.baseRevisionCode = 100;
428        pkg.baseHardwareAccelerated = true;
429        pkg.mVersionCode = 100;
430        pkg.mSharedUserLabel = 100;
431        pkg.mPreferredOrder = 100;
432        pkg.installLocation = 100;
433        pkg.coreApp = true;
434        pkg.mRequiredForAllUsers = true;
435        pkg.mTrustedOverlay = true;
436        pkg.use32bitAbi = true;
437        pkg.packageName = "foo";
438        pkg.splitNames = new String[] { "foo2" };
439        pkg.volumeUuid = "foo3";
440        pkg.codePath = "foo4";
441        pkg.baseCodePath = "foo5";
442        pkg.splitCodePaths = new String[] { "foo6" };
443        pkg.splitRevisionCodes = new int[] { 100 };
444        pkg.splitFlags = new int[] { 100 };
445        pkg.splitPrivateFlags = new int[] { 100 };
446        pkg.applicationInfo = new ApplicationInfo();
447
448        pkg.permissions.add(new PackageParser.Permission(pkg));
449        pkg.permissionGroups.add(new PackageParser.PermissionGroup(pkg));
450
451        final PackageParser.ParseComponentArgs dummy = new PackageParser.ParseComponentArgs(
452                pkg, new String[1], 0, 0, 0, 0, 0, 0, null, 0, 0, 0);
453
454        pkg.activities.add(new PackageParser.Activity(dummy, new ActivityInfo()));
455        pkg.receivers.add(new PackageParser.Activity(dummy, new ActivityInfo()));
456        pkg.providers.add(new PackageParser.Provider(dummy, new ProviderInfo()));
457        pkg.services.add(new PackageParser.Service(dummy, new ServiceInfo()));
458        pkg.instrumentation.add(new PackageParser.Instrumentation(dummy, new InstrumentationInfo()));
459        pkg.requestedPermissions.add("foo7");
460
461        pkg.protectedBroadcasts = new ArrayList<>();
462        pkg.protectedBroadcasts.add("foo8");
463
464        pkg.parentPackage = new PackageParser.Package("foo9");
465
466        pkg.childPackages = new ArrayList<>();
467        pkg.childPackages.add(new PackageParser.Package("bar"));
468
469        pkg.staticSharedLibName = "foo23";
470        pkg.staticSharedLibVersion = 100;
471        pkg.usesStaticLibraries = new ArrayList<>();
472        pkg.usesStaticLibraries.add("foo23");
473        pkg.usesStaticLibrariesCertDigests = new String[] { "digest" };
474        pkg.usesStaticLibrariesVersions = new int[] { 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.mSigningKeys = new ArraySet<>();
505        pkg.mUpgradeKeySets = new ArraySet<>();
506        pkg.mKeySetMapping = new ArrayMap<>();
507        pkg.cpuAbiOverride = "foo22";
508        pkg.restrictUpdateHash = new byte[16];
509
510        pkg.preferredActivityFilters = new ArrayList<>();
511        pkg.preferredActivityFilters.add(new PackageParser.ActivityIntentInfo(
512                new PackageParser.Activity(dummy, new ActivityInfo())));
513
514        pkg.configPreferences = new ArrayList<>();
515        pkg.configPreferences.add(new ConfigurationInfo());
516
517        pkg.reqFeatures = new ArrayList<>();
518        pkg.reqFeatures.add(new FeatureInfo());
519
520        pkg.featureGroups = new ArrayList<>();
521        pkg.featureGroups.add(new FeatureGroupInfo());
522    }
523
524    private static void assertAllFieldsExist(PackageParser.Package pkg) throws Exception {
525        Field[] fields = PackageParser.Package.class.getDeclaredFields();
526
527        Set<String> nonSerializedFields = new HashSet<>();
528        nonSerializedFields.add("mExtras");
529        nonSerializedFields.add("packageUsageTimeMillis");
530
531        for (Field f : fields) {
532            final Class<?> fieldType = f.getType();
533
534            if (nonSerializedFields.contains(f.getName())) {
535                continue;
536            }
537
538            if (List.class.isAssignableFrom(fieldType)) {
539                // Sanity check for list fields: Assume they're non-null and contain precisely
540                // one element.
541                List<?> list = (List<?>) f.get(pkg);
542                assertNotNull("List was null: " + f, list);
543                assertEquals(1, list.size());
544            } else if (fieldType.getComponentType() != null) {
545                // Sanity check for array fields: Assume they're non-null and contain precisely
546                // one element.
547                Object array = f.get(pkg);
548                assertNotNull(Array.get(array, 0));
549            } else if (fieldType == String.class) {
550                // String fields: Check that they're set to "foo".
551                String value = (String) f.get(pkg);
552
553                assertTrue("Bad value for field: " + f, value != null && value.startsWith("foo"));
554            } else if (fieldType == int.class) {
555                // int fields: Check that they're set to 100.
556                int value = (int) f.get(pkg);
557                assertEquals("Bad value for field: " + f, 100, value);
558            } else {
559                // All other fields: Check that they're set.
560                Object o = f.get(pkg);
561                assertNotNull("Field was null: " + f, o);
562            }
563        }
564    }
565}
566
567