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      1 /*
      2  * Copyright (C) 2017 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 com.android.settingslib.deviceinfo;
     18 
     19 import static com.google.common.truth.Truth.assertThat;
     20 import static org.mockito.Mockito.when;
     21 
     22 import android.content.Context;
     23 import android.support.v7.preference.Preference;
     24 import android.support.v7.preference.PreferenceScreen;
     25 
     26 import com.android.settingslib.SettingsLibRobolectricTestRunner;
     27 
     28 import org.junit.Before;
     29 import org.junit.Test;
     30 import org.junit.runner.RunWith;
     31 import org.mockito.Mock;
     32 import org.mockito.MockitoAnnotations;
     33 import org.robolectric.RuntimeEnvironment;
     34 
     35 @RunWith(SettingsLibRobolectricTestRunner.class)
     36 public class SerialNumberPreferenceControllerTest {
     37 
     38     @Mock
     39     private PreferenceScreen mScreen;
     40 
     41     private Context mContext;
     42     private Preference mPreference;
     43     private AbstractSerialNumberPreferenceController mController;
     44 
     45     @Before
     46     public void setUp() {
     47         MockitoAnnotations.initMocks(this);
     48         mContext = RuntimeEnvironment.application;
     49         mPreference = new Preference(mContext);
     50         mPreference.setKey(AbstractSerialNumberPreferenceController.KEY_SERIAL_NUMBER);
     51         when(mScreen.findPreference(mPreference.getKey())).thenReturn(mPreference);
     52     }
     53 
     54     @Test
     55     public void testIsAvaiable_noSerial_shouldReturnFalse() {
     56         mController = new TestPreferenceController(mContext, null);
     57 
     58         assertThat(mController.isAvailable()).isFalse();
     59     }
     60 
     61     @Test
     62     public void testIsAvailable_hasSerial_shouldReturnTrue() {
     63         mController = new TestPreferenceController(mContext, "123");
     64 
     65         assertThat(mController.isAvailable()).isTrue();
     66     }
     67 
     68     @Test
     69     public void testDisplay_noSerial_shouldHidePreference() {
     70         mController = new TestPreferenceController(mContext, null);
     71 
     72         mController.displayPreference(mScreen);
     73 
     74         assertThat(mPreference.isVisible()).isFalse();
     75     }
     76 
     77     @Test
     78     public void testDisplay_hasSerial_shouldSetSummary() {
     79         final String serial = "123";
     80 
     81         mController = new TestPreferenceController(mContext, serial);
     82         mController.displayPreference(mScreen);
     83 
     84         assertThat(mPreference.isVisible()).isTrue();
     85         assertThat(mPreference.getSummary()).isEqualTo(serial);
     86     }
     87 
     88     private static class TestPreferenceController
     89             extends AbstractSerialNumberPreferenceController {
     90 
     91         TestPreferenceController(Context context, String serialNumber) {
     92             super(context, serialNumber);
     93         }
     94     }
     95 }
     96