| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.cts.overlay.app; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import android.content.Context; |
| import android.content.res.AssetFileDescriptor; |
| |
| import androidx.test.InstrumentationRegistry; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import java.io.InputStreamReader; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.FutureTask; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| @RunWith(AndroidJUnit4.class) |
| public class OverlayableTest { |
| private static final String TARGET_PACKAGE = "com.android.cts.overlay.target"; |
| |
| private static final String POLICY_ALL_PACKAGE = "com.android.cts.overlay.all"; |
| |
| private static final String OVERLAID = "You have been overlaid"; |
| private static final String NOT_OVERLAID = "Not overlaid"; |
| |
| private static final long TIMEOUT = 30; |
| |
| private static class R { |
| class string { |
| private static final int not_overlayable = 0x7f010000; |
| private static final int policy_product = 0x7f010001; |
| private static final int policy_public = 0x7f010002; |
| private static final int policy_system = 0x7f010003; |
| private static final int policy_vendor = 0x7f010004; |
| private static final int policy_signature = 0x7f010005; |
| private static final int other_policy_public = 0x7f010006; |
| } |
| } |
| |
| private Executor mExecutor; |
| |
| @Before |
| public void setUp() throws Exception { |
| mExecutor = (command) -> new Thread(command).start(); |
| } |
| |
| private Context getTargetContext() throws Exception { |
| return InstrumentationRegistry.getTargetContext().createPackageContext(TARGET_PACKAGE, 0); |
| } |
| |
| private void assertOverlayEnabled(Context context, String overlayPackage) throws Exception { |
| // Wait for the overlay changes to propagate |
| FutureTask<Boolean> task = new FutureTask<>(() -> { |
| while (true) { |
| for (String path : context.getAssets().getApkPaths()) { |
| if (path.contains(overlayPackage)) { |
| return true; |
| } |
| } |
| } |
| }); |
| |
| mExecutor.execute(task); |
| assertTrue("Failed to load overlay " + overlayPackage, task.get(TIMEOUT, TimeUnit.SECONDS)); |
| } |
| |
| @Test |
| public void testOverlayPolicyAll() throws Exception { |
| Context context = getTargetContext(); |
| assertOverlayEnabled(context, POLICY_ALL_PACKAGE); |
| |
| String result = context.getResources().getString(R.string.not_overlayable); |
| assertEquals(NOT_OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.policy_public); |
| assertEquals(OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.policy_product); |
| assertEquals(NOT_OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.policy_system); |
| assertEquals(NOT_OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.policy_vendor); |
| assertEquals(NOT_OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.policy_signature); |
| assertEquals(OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.other_policy_public); |
| assertEquals(NOT_OVERLAID, result); |
| } |
| |
| @Test |
| public void testSameSignatureNoOverlayableSucceeds() throws Exception { |
| Context context = getTargetContext(); |
| assertOverlayEnabled(context, POLICY_ALL_PACKAGE); |
| |
| String result = context.getResources().getString(R.string.not_overlayable); |
| assertEquals(OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.policy_public); |
| assertEquals(OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.policy_product); |
| assertEquals(OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.policy_system); |
| assertEquals(OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.policy_vendor); |
| assertEquals(OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.policy_signature); |
| assertEquals(OVERLAID, result); |
| |
| result = context.getResources().getString(R.string.other_policy_public); |
| assertEquals(OVERLAID, result); |
| } |
| |
| @Test |
| public void testFrameworkDoesNotDefineOverlayable() throws Exception { |
| assertTrue(InstrumentationRegistry.getTargetContext().getAssets().getOverlayablesToString( |
| "android").isEmpty()); |
| } |
| |
| @Test |
| public void testCannotOverlayAssets() throws Exception { |
| Context context = getTargetContext(); |
| AssetFileDescriptor d = context.getAssets().openNonAssetFd("assets/asset.txt"); |
| InputStreamReader inputStreamReader = new InputStreamReader(d.createInputStream()); |
| |
| StringBuilder output = new StringBuilder(); |
| for (int c = inputStreamReader.read(); c >= 0; c = inputStreamReader.read()) { |
| output.append((char) c); |
| } |
| |
| assertEquals(NOT_OVERLAID, output.toString()); |
| } |
| } |