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      1 /*
      2  * Copyright (C) 2016 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.settings.deviceinfo;
     18 
     19 import android.content.Context;
     20 import android.support.v7.preference.Preference;
     21 import android.support.v7.preference.PreferenceScreen;
     22 
     23 import com.android.settings.SettingsRobolectricTestRunner;
     24 import com.android.settings.TestConfig;
     25 
     26 import org.junit.Before;
     27 import org.junit.Test;
     28 import org.junit.runner.RunWith;
     29 import org.mockito.Mock;
     30 import org.mockito.MockitoAnnotations;
     31 import org.robolectric.annotation.Config;
     32 
     33 import static com.google.common.truth.Truth.assertThat;
     34 import static org.mockito.Answers.RETURNS_DEEP_STUBS;
     35 import static org.mockito.Matchers.any;
     36 import static org.mockito.Matchers.anyString;
     37 import static org.mockito.Mockito.mock;
     38 import static org.mockito.Mockito.never;
     39 import static org.mockito.Mockito.verify;
     40 import static org.mockito.Mockito.when;
     41 
     42 @RunWith(SettingsRobolectricTestRunner.class)
     43 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
     44 public class SerialNumberPreferenceControllerTest {
     45 
     46     @Mock(answer = RETURNS_DEEP_STUBS)
     47     private Context mContext;
     48     @Mock(answer = RETURNS_DEEP_STUBS)
     49     private PreferenceScreen mScreen;
     50 
     51     private SerialNumberPreferenceController mController;
     52 
     53     @Before
     54     public void setUp() {
     55         MockitoAnnotations.initMocks(this);
     56     }
     57 
     58     @Test
     59     public void testIsAvaiable_noSerial_shouldReturnFalse() {
     60         mController = new SerialNumberPreferenceController(mContext, null);
     61 
     62         assertThat(mController.isAvailable()).isFalse();
     63     }
     64 
     65     @Test
     66     public void testIsAvaiable_hasSerial_shouldReturnTrue() {
     67         mController = new SerialNumberPreferenceController(mContext, "123");
     68 
     69         assertThat(mController.isAvailable()).isTrue();
     70     }
     71 
     72     @Test
     73     public void testDisplay_noSerial_shouldHidePreference() {
     74         final Preference preference = mock(Preference.class);
     75         when(mScreen.getPreferenceCount()).thenReturn(1);
     76         when(mScreen.getPreference(0)).thenReturn(preference);
     77         mController = new SerialNumberPreferenceController(mContext, null);
     78         when(preference.getKey()).thenReturn(mController.getPreferenceKey());
     79 
     80         mController.displayPreference(mScreen);
     81 
     82         verify(mScreen).removePreference(any(Preference.class));
     83     }
     84 
     85     @Test
     86     public void testDisplay_hasSerial_shouldSummary() {
     87         final String serial = "123";
     88         final Preference preference = mock(Preference.class);
     89         when(mScreen.findPreference(anyString())).thenReturn(preference);
     90 
     91         mController = new SerialNumberPreferenceController(mContext, serial);
     92         mController.displayPreference(mScreen);
     93 
     94         verify(mScreen, never()).removePreference(any(Preference.class));
     95         verify(preference).setSummary(serial);
     96     }
     97 }
     98