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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 package org.chromium.base.test; |
| 6 |
| 7 import android.content.Context; |
| 8 import android.content.ContextWrapper; |
| 9 import android.content.SharedPreferences; |
| 10 import android.content.pm.ApplicationInfo; |
| 11 import android.content.pm.PackageManager; |
| 12 |
| 13 import org.chromium.android.support.PackageManagerWrapper; |
| 14 import org.chromium.base.Log; |
| 15 import org.chromium.base.annotations.MainDex; |
| 16 |
| 17 import java.io.File; |
| 18 import java.io.IOException; |
| 19 import java.io.Serializable; |
| 20 import java.lang.reflect.Field; |
| 21 import java.util.Arrays; |
| 22 import java.util.Comparator; |
| 23 |
| 24 /** |
| 25 * Functionality common to the JUnit3 and JUnit4 runners. |
| 26 */ |
| 27 @MainDex |
| 28 class BaseChromiumRunnerCommon { |
| 29 private static final String TAG = "base_test"; |
| 30 |
| 31 /** |
| 32 * A ContextWrapper that allows multidex test APKs to extract secondary dex
es into |
| 33 * the APK under test's data directory. |
| 34 */ |
| 35 @MainDex |
| 36 static class MultiDexContextWrapper extends ContextWrapper { |
| 37 private Context mAppContext; |
| 38 |
| 39 MultiDexContextWrapper(Context instrContext, Context appContext) { |
| 40 super(instrContext); |
| 41 mAppContext = appContext; |
| 42 } |
| 43 |
| 44 @Override |
| 45 public File getFilesDir() { |
| 46 return mAppContext.getFilesDir(); |
| 47 } |
| 48 |
| 49 @Override |
| 50 public SharedPreferences getSharedPreferences(String name, int mode) { |
| 51 return mAppContext.getSharedPreferences(name, mode); |
| 52 } |
| 53 |
| 54 @Override |
| 55 public PackageManager getPackageManager() { |
| 56 return new PackageManagerWrapper(super.getPackageManager()) { |
| 57 @Override |
| 58 public ApplicationInfo getApplicationInfo(String packageName, in
t flags) { |
| 59 try { |
| 60 ApplicationInfo ai = super.getApplicationInfo(packageNam
e, flags); |
| 61 if (packageName.equals(getPackageName())) { |
| 62 ApplicationInfo appAi = |
| 63 super.getApplicationInfo(mAppContext.getPack
ageName(), flags); |
| 64 File dataDir = new File(appAi.dataDir, "test-multide
x"); |
| 65 if (!dataDir.exists() && !dataDir.mkdirs()) { |
| 66 throw new IOException(String.format( |
| 67 "Unable to create test multidex director
y \"%s\"", |
| 68 dataDir.getPath())); |
| 69 } |
| 70 ai.dataDir = dataDir.getPath(); |
| 71 } |
| 72 return ai; |
| 73 } catch (Exception e) { |
| 74 Log.e(TAG, "Failed to get application info for %s", pack
ageName, e); |
| 75 } |
| 76 return null; |
| 77 } |
| 78 }; |
| 79 } |
| 80 } |
| 81 |
| 82 /** |
| 83 * Ensure all test dex entries precede app dex entries. |
| 84 * |
| 85 * @param cl ClassLoader to modify. Assumed to be a derivative of |
| 86 * {@link dalvik.system.BaseDexClassLoader}. If this isn't |
| 87 * the case, reordering will fail. |
| 88 */ |
| 89 static void reorderDexPathElements(ClassLoader cl, Context context, Context
targetContext) { |
| 90 try { |
| 91 Log.i(TAG, |
| 92 "Reordering dex files. If you're building a multidex test AP
K and see a " |
| 93 + "class resolving to an unexpected implementation,
this may be why."); |
| 94 Field pathListField = findField(cl, "pathList"); |
| 95 Object dexPathList = pathListField.get(cl); |
| 96 Field dexElementsField = findField(dexPathList, "dexElements"); |
| 97 Object[] dexElementsList = (Object[]) dexElementsField.get(dexPathLi
st); |
| 98 Arrays.sort(dexElementsList, |
| 99 new DexListReorderingComparator( |
| 100 context.getPackageName(), targetContext.getPackageNa
me())); |
| 101 dexElementsField.set(dexPathList, dexElementsList); |
| 102 } catch (Exception e) { |
| 103 Log.e(TAG, "Failed to reorder dex elements for testing.", e); |
| 104 } |
| 105 } |
| 106 |
| 107 /** |
| 108 * Comparator for sorting dex list entries. |
| 109 * |
| 110 * Using this to sort a list of dex list entries will result in the followi
ng order: |
| 111 * - Strings that contain neither the test package nor the app package in
lexicographical |
| 112 * order. |
| 113 * - Strings that contain the test package in lexicographical order. |
| 114 * - Strings that contain the app package but not the test package in lexi
cographical order. |
| 115 */ |
| 116 private static class DexListReorderingComparator implements Comparator<Objec
t>, Serializable { |
| 117 private String mTestPackage; |
| 118 private String mAppPackage; |
| 119 |
| 120 public DexListReorderingComparator(String testPackage, String appPackage
) { |
| 121 mTestPackage = testPackage; |
| 122 mAppPackage = appPackage; |
| 123 } |
| 124 |
| 125 @Override |
| 126 public int compare(Object o1, Object o2) { |
| 127 String s1 = o1.toString(); |
| 128 String s2 = o2.toString(); |
| 129 if (s1.contains(mTestPackage)) { |
| 130 if (!s2.contains(mTestPackage)) { |
| 131 if (s2.contains(mAppPackage)) { |
| 132 return -1; |
| 133 } else { |
| 134 return 1; |
| 135 } |
| 136 } |
| 137 } else if (s1.contains(mAppPackage)) { |
| 138 if (s2.contains(mTestPackage)) { |
| 139 return 1; |
| 140 } else if (!s2.contains(mAppPackage)) { |
| 141 return 1; |
| 142 } |
| 143 } else if (s2.contains(mTestPackage) || s2.contains(mAppPackage)) { |
| 144 return -1; |
| 145 } |
| 146 return s1.compareTo(s2); |
| 147 } |
| 148 } |
| 149 |
| 150 private static Field findField(Object instance, String name) throws NoSuchFi
eldException { |
| 151 for (Class<?> clazz = instance.getClass(); clazz != null; clazz = clazz.
getSuperclass()) { |
| 152 try { |
| 153 Field f = clazz.getDeclaredField(name); |
| 154 f.setAccessible(true); |
| 155 return f; |
| 156 } catch (NoSuchFieldException e) { |
| 157 } |
| 158 } |
| 159 throw new NoSuchFieldException( |
| 160 "Unable to find field " + name + " in " + instance.getClass()); |
| 161 } |
| 162 } |
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