1 /* 2 * Copyright (C) 2019 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 17 package android.app.cts; 18 19 import static org.junit.Assert.assertSame; 20 21 import android.os.Parcel; 22 import android.os.Process; 23 import android.os.UserHandle; 24 import android.test.AndroidTestCase; 25 26 public class UserHandleTest extends AndroidTestCase { 27 private static final int TEST_APP_ID = 1234; 28 assertSameUserHandle(int userId)29 private static void assertSameUserHandle(int userId) { 30 assertSame(UserHandle.of(userId), UserHandle.of(userId)); 31 } 32 testOf()33 public void testOf() { 34 // We test them separately since technically it's possible for these constants to have 35 // different values than the AOSP contains and are out of the [-1000, 1000] range. 36 assertSameUserHandle(UserHandle.USER_SYSTEM); 37 assertSameUserHandle(UserHandle.USER_ALL); 38 assertSameUserHandle(UserHandle.USER_NULL); 39 40 for (int userId = -1000; userId <= 1000; userId++) { 41 assertEquals(userId, UserHandle.of(userId).getIdentifier()); 42 43 // Because of the cache, this should always be true. 44 assertSameUserHandle(userId); 45 } 46 } 47 assertParcel(int userId)48 private static void assertParcel(int userId) { 49 Parcel p = Parcel.obtain(); 50 p.writeParcelable(UserHandle.of(userId), 0); 51 p.setDataPosition(0); 52 53 UserHandle read = p.readParcelable(UserHandleTest.class.getClassLoader()); 54 55 assertEquals(userId, read.getIdentifier()); 56 57 p.recycle(); 58 } 59 testParcel()60 public void testParcel() { 61 for (int i = -1000; i < 100; i++) { 62 assertParcel(i); 63 } 64 } 65 testGetUid()66 public void testGetUid() { 67 assertEquals( 68 UserHandle.getUid(UserHandle.USER_ALL, TEST_APP_ID), 69 UserHandle.ALL.getUid(TEST_APP_ID)); 70 assertEquals( 71 UserHandle.getUid(UserHandle.USER_SYSTEM, TEST_APP_ID), 72 UserHandle.SYSTEM.getUid(TEST_APP_ID)); 73 assertEquals( 74 UserHandle.ALL.getUid(TEST_APP_ID), 75 UserHandle.getUid(UserHandle.ALL.getIdentifier(), TEST_APP_ID)); 76 assertEquals( 77 UserHandle.SYSTEM.getUid(TEST_APP_ID), 78 UserHandle.getUid(UserHandle.SYSTEM.getIdentifier(), TEST_APP_ID)); 79 } 80 testGetSharedAppGid()81 public void testGetSharedAppGid() { 82 assertEquals(UserHandle.getSharedAppGid(Process.ROOT_UID), Process.ROOT_UID); 83 assertEquals(UserHandle.getSharedAppGid(Process.SYSTEM_UID), Process.SYSTEM_UID); 84 assertEquals(UserHandle.getSharedAppGid(Process.FIRST_APPLICATION_UID), 50000); 85 assertEquals(UserHandle.getSharedAppGid(Process.FIRST_APPLICATION_UID + 1000), 51000); 86 assertEquals(UserHandle.getSharedAppGid(android.os.Process.LAST_APPLICATION_UID + 1), -1); 87 } 88 } 89