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 import android.test.suitebuilder.annotation.SmallTest;
24 
25 import com.android.mail.utils.LogUtils;
26 
27 @SmallTest
28 public class DeviceTests extends AndroidTestCase {
29 
testGetConsistentDeviceId()30     public void testGetConsistentDeviceId() {
31         TelephonyManager tm =
32                 (TelephonyManager) getContext().getSystemService(Context.TELEPHONY_SERVICE);
33         if (tm == null) {
34             LogUtils.w(Logging.LOG_TAG, "TelephonyManager not supported.  Skipping.");
35             return;
36         }
37 
38         // Note null is a valid return value.  But still it should be consistent.
39         final String deviceId = Device.getConsistentDeviceId(getContext());
40         final String deviceId2 = Device.getConsistentDeviceId(getContext());
41         // Should be consistent.
42         assertEquals(deviceId, deviceId2);
43     }
44 
45 }
46