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.settings.widget; 18 19 import static android.arch.lifecycle.Lifecycle.Event.ON_START; 20 import static android.arch.lifecycle.Lifecycle.Event.ON_STOP; 21 import static com.google.common.truth.Truth.assertThat; 22 import static org.mockito.Matchers.any; 23 import static org.mockito.Mockito.times; 24 import static org.mockito.Mockito.verify; 25 import static org.mockito.Mockito.when; 26 27 import android.app.ActionBar; 28 import android.app.Activity; 29 import android.arch.lifecycle.LifecycleOwner; 30 import android.support.v7.widget.RecyclerView; 31 import android.view.View; 32 33 import com.android.settings.testutils.SettingsRobolectricTestRunner; 34 import com.android.settingslib.core.lifecycle.Lifecycle; 35 36 import org.junit.Before; 37 import org.junit.Test; 38 import org.junit.runner.RunWith; 39 import org.mockito.Mock; 40 import org.mockito.MockitoAnnotations; 41 import org.robolectric.RuntimeEnvironment; 42 43 @RunWith(SettingsRobolectricTestRunner.class) 44 public class ActionBarShadowControllerTest { 45 46 @Mock 47 private RecyclerView mRecyclerView; 48 @Mock 49 private Activity mActivity; 50 @Mock 51 private ActionBar mActionBar; 52 private Lifecycle mLifecycle; 53 private LifecycleOwner mLifecycleOwner; 54 private View mView; 55 56 @Before setUp()57 public void setUp() { 58 MockitoAnnotations.initMocks(this); 59 when(mActivity.getActionBar()).thenReturn(mActionBar); 60 mView = new View(RuntimeEnvironment.application); 61 mLifecycleOwner = () -> mLifecycle; 62 mLifecycle = new Lifecycle(mLifecycleOwner); 63 } 64 65 @Test attachToRecyclerView_shouldAddScrollWatcherAndUpdateActionBar()66 public void attachToRecyclerView_shouldAddScrollWatcherAndUpdateActionBar() { 67 when(mRecyclerView.canScrollVertically(-1)).thenReturn(false); 68 69 ActionBarShadowController.attachToRecyclerView(mActivity, mLifecycle, mRecyclerView); 70 71 verify(mActionBar).setElevation(ActionBarShadowController.ELEVATION_LOW); 72 } 73 74 @Test attachToRecyclerView_customViewAsActionBar_shouldUpdateElevationOnScroll()75 public void attachToRecyclerView_customViewAsActionBar_shouldUpdateElevationOnScroll() { 76 // Setup 77 mView.setElevation(50); 78 when(mRecyclerView.canScrollVertically(-1)).thenReturn(false); 79 final ActionBarShadowController controller = 80 ActionBarShadowController.attachToRecyclerView(mView, mLifecycle, mRecyclerView); 81 assertThat(mView.getElevation()).isEqualTo(ActionBarShadowController.ELEVATION_LOW); 82 83 // Scroll 84 when(mRecyclerView.canScrollVertically(-1)).thenReturn(true); 85 controller.mScrollChangeWatcher.onScrolled(mRecyclerView, 10 /* dx */, 10 /* dy */); 86 assertThat(mView.getElevation()).isEqualTo(ActionBarShadowController.ELEVATION_HIGH); 87 } 88 89 @Test attachToRecyclerView_lifecycleChange_shouldAttachDetach()90 public void attachToRecyclerView_lifecycleChange_shouldAttachDetach() { 91 ActionBarShadowController.attachToRecyclerView(mActivity, mLifecycle, mRecyclerView); 92 93 verify(mRecyclerView).addOnScrollListener(any()); 94 95 mLifecycle.handleLifecycleEvent(ON_START); 96 mLifecycle.handleLifecycleEvent(ON_STOP); 97 verify(mRecyclerView).removeOnScrollListener(any()); 98 99 mLifecycle.handleLifecycleEvent(ON_START); 100 verify(mRecyclerView, times(2)).addOnScrollListener(any()); 101 } 102 103 @Test onScrolled_nullAnchorViewAndActivity_shouldNotCrash()104 public void onScrolled_nullAnchorViewAndActivity_shouldNotCrash() { 105 final Activity activity = null; 106 final ActionBarShadowController controller = 107 ActionBarShadowController.attachToRecyclerView(activity, mLifecycle, mRecyclerView); 108 109 // Scroll 110 controller.mScrollChangeWatcher.onScrolled(mRecyclerView, 10 /* dx */, 10 /* dy */); 111 // no crash 112 } 113 } 114