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 20 import static com.google.common.truth.Truth.assertThat; 21 import static org.mockito.Matchers.any; 22 import static org.mockito.Mockito.times; 23 import static org.mockito.Mockito.verify; 24 import static org.mockito.Mockito.when; 25 26 import android.app.ActionBar; 27 import android.app.Activity; 28 import android.support.v7.widget.RecyclerView; 29 import android.view.View; 30 31 import com.android.settings.TestConfig; 32 import com.android.settings.testutils.SettingsRobolectricTestRunner; 33 import com.android.settingslib.core.lifecycle.Lifecycle; 34 import com.android.settingslib.core.lifecycle.LifecycleObserver; 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 import org.robolectric.annotation.Config; 43 import org.robolectric.util.ReflectionHelpers; 44 45 import java.util.List; 46 47 @RunWith(SettingsRobolectricTestRunner.class) 48 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION) 49 public class ActionBarShadowControllerTest { 50 51 @Mock 52 private RecyclerView mRecyclerView; 53 @Mock 54 private Activity mActivity; 55 @Mock 56 private ActionBar mActionBar; 57 private Lifecycle mLifecycle; 58 private View mView; 59 60 @Before setUp()61 public void setUp() { 62 MockitoAnnotations.initMocks(this); 63 when(mActivity.getActionBar()).thenReturn(mActionBar); 64 mView = new View(RuntimeEnvironment.application); 65 mLifecycle = new Lifecycle(); 66 } 67 68 @Test attachToRecyclerView_shouldAddScrollWatcherAndUpdateActionBar()69 public void attachToRecyclerView_shouldAddScrollWatcherAndUpdateActionBar() { 70 when(mRecyclerView.canScrollVertically(-1)).thenReturn(false); 71 72 ActionBarShadowController.attachToRecyclerView(mActivity, mLifecycle, mRecyclerView); 73 74 verify(mActionBar).setElevation(ActionBarShadowController.ELEVATION_LOW); 75 } 76 77 @Test attachToRecyclerView_customViewAsActionBar_shouldUpdateElevationOnScroll()78 public void attachToRecyclerView_customViewAsActionBar_shouldUpdateElevationOnScroll() { 79 // Setup 80 mView.setElevation(50); 81 when(mRecyclerView.canScrollVertically(-1)).thenReturn(false); 82 final ActionBarShadowController controller = 83 ActionBarShadowController.attachToRecyclerView(mView, mLifecycle, mRecyclerView); 84 assertThat(mView.getElevation()).isEqualTo(ActionBarShadowController.ELEVATION_LOW); 85 86 // Scroll 87 when(mRecyclerView.canScrollVertically(-1)).thenReturn(true); 88 controller.mScrollChangeWatcher.onScrolled(mRecyclerView, 10 /* dx */, 10 /* dy */); 89 assertThat(mView.getElevation()).isEqualTo(ActionBarShadowController.ELEVATION_HIGH); 90 } 91 92 @Test attachToRecyclerView_lifecycleChange_shouldAttachDetach()93 public void attachToRecyclerView_lifecycleChange_shouldAttachDetach() { 94 ActionBarShadowController.attachToRecyclerView(mActivity, mLifecycle, mRecyclerView); 95 96 List<LifecycleObserver> observers = ReflectionHelpers.getField(mLifecycle, "mObservers"); 97 assertThat(observers).hasSize(1); 98 verify(mRecyclerView).addOnScrollListener(any()); 99 100 mLifecycle.onStop(); 101 verify(mRecyclerView).removeOnScrollListener(any()); 102 103 mLifecycle.onStart(); 104 verify(mRecyclerView, times(2)).addOnScrollListener(any()); 105 } 106 107 @Test onScrolled_nullAnchorViewAndActivity_shouldNotCrash()108 public void onScrolled_nullAnchorViewAndActivity_shouldNotCrash() { 109 final Activity activity = null; 110 final ActionBarShadowController controller = 111 ActionBarShadowController.attachToRecyclerView(activity, mLifecycle, mRecyclerView); 112 113 // Scroll 114 controller.mScrollChangeWatcher.onScrolled(mRecyclerView, 10 /* dx */, 10 /* dy */); 115 // no crash 116 } 117 118 } 119