1 /* 2 /* 3 * Copyright (C) 2011 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.android.emailcommon; 19 20 import android.content.Context; 21 import android.telephony.TelephonyManager; 22 import android.test.AndroidTestCase; 23 24 import com.android.mail.utils.LogUtils; 25 26 public class DeviceTests extends AndroidTestCase { 27 28 public void testGetConsistentDeviceId() { 29 TelephonyManager tm = 30 (TelephonyManager) getContext().getSystemService(Context.TELEPHONY_SERVICE); 31 if (tm == null) { 32 LogUtils.w(Logging.LOG_TAG, "TelephonyManager not supported. Skipping."); 33 return; 34 } 35 36 // Note null is a valid return value. But still it should be consistent. 37 final String deviceId = Device.getConsistentDeviceId(getContext()); 38 final String deviceId2 = Device.getConsistentDeviceId(getContext()); 39 // Should be consistent. 40 assertEquals(deviceId, deviceId2); 41 } 42 43 } 44
