1 /*
2  * Copyright (C) 2021 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.fuelgauge;
18 
19 import static com.google.common.truth.Truth.assertThat;
20 
21 import static org.mockito.Mockito.doReturn;
22 import static org.mockito.Mockito.spy;
23 import static org.mockito.Mockito.verify;
24 import static org.mockito.Mockito.when;
25 
26 import android.content.Context;
27 import android.widget.ImageView;
28 import android.widget.TextView;
29 
30 import com.android.settings.R;
31 
32 import org.junit.Before;
33 import org.junit.Test;
34 import org.junit.runner.RunWith;
35 import org.robolectric.RobolectricTestRunner;
36 import org.robolectric.RuntimeEnvironment;
37 
38 @RunWith(RobolectricTestRunner.class)
39 public final class ExpandDividerPreferenceTest {
40 
41     private Context mContext;
42     private ExpandDividerPreference mExpandDividerPreference;
43 
44     private ImageView mImageView;
45     private TextView mTextView;
46 
47     @Before
setUp()48     public void setUp() {
49         mContext = spy(RuntimeEnvironment.application);
50         mImageView = spy(new ImageView(mContext));
51         mTextView = spy(new TextView(mContext));
52         mExpandDividerPreference = new ExpandDividerPreference(mContext);
53         doReturn(R.id.expand_title).when(mTextView).getId();
54         doReturn(R.id.expand_icon).when(mImageView).getId();
55     }
56 
57     @Test
testConstructor_returnExpectedResult()58     public void testConstructor_returnExpectedResult() {
59         assertThat(mExpandDividerPreference.getKey())
60                 .isEqualTo(ExpandDividerPreference.PREFERENCE_KEY);
61         assertThat(mExpandDividerPreference.getLayoutResource())
62                 .isEqualTo(R.layout.preference_expand_divider);
63     }
64 
65     @Test
testSetTitle_setTitleContentIntoTextView()66     public void testSetTitle_setTitleContentIntoTextView() {
67         final String titleContent = "title content";
68         mExpandDividerPreference.mTextView = mTextView;
69 
70         mExpandDividerPreference.setTitle(titleContent);
71 
72         verify(mTextView).setText(titleContent);
73     }
74 
75     @Test
testOnClick_switchExpandStateAndInvokeCallback()76     public void testOnClick_switchExpandStateAndInvokeCallback() {
77         final boolean[] isExpandedArray = new boolean[] {false};
78         mExpandDividerPreference.mImageView = mImageView;
79         mExpandDividerPreference.setOnExpandListener(
80                 isExpanded -> isExpandedArray[0] = isExpanded);
81 
82         // Click the item first time from false -> true.
83         mExpandDividerPreference.onClick();
84         // Verifies the first time click result.
85         verify(mImageView).setImageResource(R.drawable.ic_settings_expand_less);
86         assertThat(isExpandedArray[0]).isTrue();
87 
88         // Clicks the item second time from true -> false.
89         mExpandDividerPreference.onClick();
90         // Verifies the second time click result.
91         verify(mImageView).setImageResource(R.drawable.ic_settings_expand_more);
92         assertThat(isExpandedArray[0]).isFalse();
93     }
94 
95     @Test
testSetIsExpanded_updateStateButNotInvokeCallback()96     public void testSetIsExpanded_updateStateButNotInvokeCallback() {
97         final boolean[] isExpandedArray = new boolean[] {false};
98         mExpandDividerPreference.mImageView = mImageView;
99         mExpandDividerPreference.setOnExpandListener(
100                 isExpanded -> isExpandedArray[0] = isExpanded);
101 
102         mExpandDividerPreference.setIsExpanded(true);
103 
104         verify(mImageView).setImageResource(R.drawable.ic_settings_expand_less);
105         assertThat(isExpandedArray[0]).isFalse();
106     }
107 }
108