| /* |
| * Copyright (C) 2017 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 android.os.cts; |
| |
| import static junit.framework.Assert.assertEquals; |
| import static junit.framework.Assert.assertTrue; |
| import static junit.framework.Assert.fail; |
| |
| import android.os.Build; |
| |
| import androidx.test.InstrumentationRegistry; |
| |
| import org.junit.Test; |
| |
| /** |
| * Test that modern apps cannot access the device serial number even with the phone permission as |
| * 3P apps are now restricted from accessing persistent device identifiers. |
| */ |
| public class AccessSerialModernTest { |
| @Test |
| public void testAccessSerialPermissionNeeded() throws Exception { |
| // Build.SERIAL should not provide the device serial for modern apps. |
| // We don't know the serial but know that it should be the dummy |
| // value returned to unauthorized callers, so make sure that value is returned. |
| assertTrue("Build.SERIAL must not work for modern apps", |
| Build.UNKNOWN.equals(Build.SERIAL)); |
| |
| // To prevent breakage an app targeting pre-Q with the READ_PHONE_STATE permission will |
| // receive Build.UNKNOWN; once the app is targeting Q+ a SecurityException will be thrown |
| // even if the app has the READ_PHONE_STATE permission. |
| try { |
| assertEquals("Build.getSerial() must return " + Build.UNKNOWN |
| + " for an app targeting pre-Q with the READ_PHONE_STATE permission", |
| Build.UNKNOWN, Build.getSerial()); |
| } catch (SecurityException e) { |
| fail("Build.getSerial() must return " + Build.UNKNOWN |
| + " for an app targeting pre-Q with the READ_PHONE_STATE permission, caught " |
| + "SecurityException: " |
| + e); |
| } |
| } |
| } |