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      1 /*
      2  * Copyright (C) 2018 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.widget;
     18 
     19 import static com.google.common.truth.Truth.assertThat;
     20 import static org.mockito.ArgumentMatchers.any;
     21 import static org.mockito.ArgumentMatchers.eq;
     22 import static org.mockito.Mockito.mock;
     23 import static org.mockito.Mockito.spy;
     24 import static org.mockito.Mockito.times;
     25 import static org.mockito.Mockito.verify;
     26 import static org.mockito.Mockito.verifyZeroInteractions;
     27 import static org.mockito.Mockito.when;
     28 
     29 import android.content.Context;
     30 import android.graphics.drawable.ColorDrawable;
     31 import android.os.Bundle;
     32 import android.support.v7.preference.PreferenceCategory;
     33 import android.support.v7.preference.PreferenceScreen;
     34 import android.support.v7.preference.PreferenceViewHolder;
     35 import android.support.v7.widget.RecyclerView;
     36 import android.view.View;
     37 
     38 import com.android.settings.R;
     39 import com.android.settings.SettingsActivity;
     40 import com.android.settings.SettingsPreferenceFragment;
     41 import com.android.settings.testutils.SettingsRobolectricTestRunner;
     42 
     43 import org.junit.Before;
     44 import org.junit.Test;
     45 import org.junit.runner.RunWith;
     46 import org.mockito.Mock;
     47 import org.mockito.MockitoAnnotations;
     48 import org.robolectric.RuntimeEnvironment;
     49 import org.robolectric.util.ReflectionHelpers;
     50 
     51 @RunWith(SettingsRobolectricTestRunner.class)
     52 public class HighlightablePreferenceGroupAdapterTest {
     53 
     54     private static final String TEST_KEY = "key";
     55 
     56     @Mock
     57     private View mRoot;
     58     @Mock
     59     private PreferenceCategory mPreferenceCatetory;
     60     @Mock
     61     private SettingsPreferenceFragment mFragment;
     62 
     63     private Context mContext;
     64     private HighlightablePreferenceGroupAdapter mAdapter;
     65     private PreferenceViewHolder mViewHolder;
     66 
     67     @Before
     68     public void setUp() {
     69         MockitoAnnotations.initMocks(this);
     70         mContext = RuntimeEnvironment.application;
     71         when(mPreferenceCatetory.getContext()).thenReturn(mContext);
     72         mAdapter = spy(new HighlightablePreferenceGroupAdapter(mPreferenceCatetory, TEST_KEY,
     73                 false /* highlighted*/));
     74         mViewHolder = PreferenceViewHolder.createInstanceForTests(
     75                 View.inflate(mContext, R.layout.app_preference_item, null));
     76     }
     77 
     78     @Test
     79     public void requestHighlight_hasKey_notHighlightedBefore_shouldRequest() {
     80         mAdapter.requestHighlight(mRoot, mock(RecyclerView.class));
     81 
     82         verify(mRoot).postDelayed(any(),
     83                 eq(HighlightablePreferenceGroupAdapter.DELAY_HIGHLIGHT_DURATION_MILLIS));
     84     }
     85 
     86     @Test
     87     public void requestHighlight_noKey_highlightedBefore_noRecyclerView_shouldNotRequest() {
     88         ReflectionHelpers.setField(mAdapter, "mHighlightKey", null);
     89         ReflectionHelpers.setField(mAdapter, "mHighlightRequested", false);
     90         mAdapter.requestHighlight(mRoot, mock(RecyclerView.class));
     91 
     92         ReflectionHelpers.setField(mAdapter, "mHighlightKey", TEST_KEY);
     93         ReflectionHelpers.setField(mAdapter, "mHighlightRequested", true);
     94         mAdapter.requestHighlight(mRoot, mock(RecyclerView.class));
     95 
     96         ReflectionHelpers.setField(mAdapter, "mHighlightKey", TEST_KEY);
     97         ReflectionHelpers.setField(mAdapter, "mHighlightRequested", false);
     98         mAdapter.requestHighlight(mRoot, null /* recyclerView */);
     99 
    100         verifyZeroInteractions(mRoot);
    101     }
    102 
    103     @Test
    104     public void adjustInitialExpandedChildCount_invalidInput_shouldNotadjust() {
    105         HighlightablePreferenceGroupAdapter.adjustInitialExpandedChildCount(null /* host */);
    106         HighlightablePreferenceGroupAdapter.adjustInitialExpandedChildCount(mFragment);
    107         final Bundle args = new Bundle();
    108         when(mFragment.getArguments()).thenReturn(args);
    109         HighlightablePreferenceGroupAdapter.adjustInitialExpandedChildCount(mFragment);
    110         final PreferenceScreen screen = mock(PreferenceScreen.class);
    111         when(mFragment.getArguments()).thenReturn(null);
    112         when(mFragment.getPreferenceScreen()).thenReturn(screen);
    113         HighlightablePreferenceGroupAdapter.adjustInitialExpandedChildCount(mFragment);
    114         verifyZeroInteractions(screen);
    115     }
    116 
    117     @Test
    118     public void adjustInitialExpandedChildCount_hasHightlightKey_shouldExpandAllChildren() {
    119         final Bundle args = new Bundle();
    120         when(mFragment.getArguments()).thenReturn(args);
    121         args.putString(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY, "testkey");
    122         final PreferenceScreen screen = mock(PreferenceScreen.class);
    123         when(mFragment.getPreferenceScreen()).thenReturn(screen);
    124         HighlightablePreferenceGroupAdapter.adjustInitialExpandedChildCount(mFragment);
    125 
    126         verify(screen).setInitialExpandedChildrenCount(Integer.MAX_VALUE);
    127     }
    128 
    129     @Test
    130     public void adjustInitialExpandedChildCount_noKeyOrChildCountOverride_shouldDoNothing() {
    131         final Bundle args = new Bundle();
    132         when(mFragment.getArguments()).thenReturn(args);
    133         when(mFragment.getInitialExpandedChildCount()).thenReturn(-1);
    134         final PreferenceScreen screen = mock(PreferenceScreen.class);
    135         when(mFragment.getPreferenceScreen()).thenReturn(screen);
    136         HighlightablePreferenceGroupAdapter.adjustInitialExpandedChildCount(mFragment);
    137 
    138         verify(mFragment).getInitialExpandedChildCount();
    139         verifyZeroInteractions(screen);
    140     }
    141 
    142     @Test
    143     public void adjustInitialExpandedChildCount_hasCountOverride_shouldDoNothing() {
    144         when(mFragment.getInitialExpandedChildCount()).thenReturn(10);
    145         final PreferenceScreen screen = mock(PreferenceScreen.class);
    146         when(mFragment.getPreferenceScreen()).thenReturn(screen);
    147         HighlightablePreferenceGroupAdapter.adjustInitialExpandedChildCount(mFragment);
    148 
    149         verify(mFragment).getInitialExpandedChildCount();
    150 
    151         verify(screen).setInitialExpandedChildrenCount(10);
    152     }
    153 
    154     @Test
    155     public void updateBackground_notHighlightedRow_shouldNotSetHighlightedTag() {
    156         ReflectionHelpers.setField(mAdapter, "mHighlightPosition", 10);
    157 
    158         mAdapter.updateBackground(mViewHolder, 0);
    159 
    160         assertThat(mViewHolder.itemView.getTag(R.id.preference_highlighted)).isNull();
    161     }
    162 
    163     @Test
    164     public void updateBackground_highlight_shouldAnimateBackgroundAndSetHighlightedTag() {
    165         ReflectionHelpers.setField(mAdapter, "mHighlightPosition", 10);
    166         assertThat(mAdapter.mFadeInAnimated).isFalse();
    167 
    168         mAdapter.updateBackground(mViewHolder, 10);
    169 
    170         assertThat(mAdapter.mFadeInAnimated).isTrue();
    171         assertThat(mViewHolder.itemView.getBackground()).isInstanceOf(ColorDrawable.class);
    172         assertThat(mViewHolder.itemView.getTag(R.id.preference_highlighted)).isEqualTo(true);
    173         verify(mAdapter).requestRemoveHighlightDelayed(mViewHolder.itemView);
    174     }
    175 
    176     @Test
    177     public void updateBackgroundTwice_highlight_shouldAnimateOnce() {
    178         ReflectionHelpers.setField(mAdapter, "mHighlightPosition", 10);
    179         ReflectionHelpers.setField(mViewHolder, "itemView", spy(mViewHolder.itemView));
    180         assertThat(mAdapter.mFadeInAnimated).isFalse();
    181         mAdapter.updateBackground(mViewHolder, 10);
    182         // mFadeInAnimated change from false to true - indicating background change is scheduled
    183         // through animation.
    184         assertThat(mAdapter.mFadeInAnimated).isTrue();
    185         // remove highlight should be requested.
    186         verify(mAdapter).requestRemoveHighlightDelayed(mViewHolder.itemView);
    187 
    188         ReflectionHelpers.setField(mAdapter, "mHighlightPosition", 10);
    189         mAdapter.updateBackground(mViewHolder, 10);
    190         // only sets background color once - if it's animation this would be called many times
    191         verify(mViewHolder.itemView).setBackgroundColor(mAdapter.mHighlightColor);
    192         // remove highlight should be requested.
    193         verify(mAdapter, times(2)).requestRemoveHighlightDelayed(mViewHolder.itemView);
    194     }
    195 
    196     @Test
    197     public void updateBackground_reuseHightlightedRowForNormalRow_shouldResetBackgroundAndTag() {
    198         ReflectionHelpers.setField(mAdapter, "mHighlightPosition", 10);
    199         mViewHolder.itemView.setTag(R.id.preference_highlighted, true);
    200 
    201         mAdapter.updateBackground(mViewHolder, 0);
    202 
    203         assertThat(mViewHolder.itemView.getBackground()).isNotInstanceOf(ColorDrawable.class);
    204         assertThat(mViewHolder.itemView.getTag(R.id.preference_highlighted)).isEqualTo(false);
    205     }
    206 }
    207