| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.setupwizardlib.template; |
| |
| import static org.mockito.Matchers.anyInt; |
| import static org.mockito.Matchers.eq; |
| import static org.mockito.Mockito.doNothing; |
| import static org.mockito.Mockito.doReturn; |
| import static org.mockito.Mockito.spy; |
| import static org.mockito.Mockito.verify; |
| import static org.robolectric.RuntimeEnvironment.application; |
| |
| import androidx.recyclerview.widget.RecyclerView; |
| import androidx.recyclerview.widget.RecyclerView.OnScrollListener; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.mockito.ArgumentCaptor; |
| import org.mockito.Mock; |
| import org.mockito.MockitoAnnotations; |
| import org.robolectric.RobolectricTestRunner; |
| import org.robolectric.annotation.Config; |
| |
| @Config(sdk = {Config.OLDEST_SDK, Config.NEWEST_SDK}) |
| @RunWith(RobolectricTestRunner.class) |
| public class RecyclerViewScrollHandlingDelegateTest { |
| |
| @Mock private RequireScrollMixin mRequireScrollMixin; |
| |
| private RecyclerView mRecyclerView; |
| private RecyclerViewScrollHandlingDelegate mDelegate; |
| private ArgumentCaptor<OnScrollListener> mListenerCaptor; |
| |
| @Before |
| public void setUp() throws Exception { |
| MockitoAnnotations.initMocks(this); |
| |
| mRecyclerView = spy(new RecyclerView(application)); |
| doReturn(20).when(mRecyclerView).computeVerticalScrollRange(); |
| doReturn(0).when(mRecyclerView).computeVerticalScrollExtent(); |
| doReturn(0).when(mRecyclerView).computeVerticalScrollOffset(); |
| mListenerCaptor = ArgumentCaptor.forClass(OnScrollListener.class); |
| doNothing().when(mRecyclerView).addOnScrollListener(mListenerCaptor.capture()); |
| |
| mDelegate = new RecyclerViewScrollHandlingDelegate(mRequireScrollMixin, mRecyclerView); |
| mRecyclerView.layout(0, 0, 50, 50); |
| } |
| |
| @Test |
| public void testRequireScroll() { |
| mDelegate.startListening(); |
| verify(mRequireScrollMixin).notifyScrollabilityChange(true); |
| } |
| |
| @Test |
| public void testScrolledToBottom() { |
| mDelegate.startListening(); |
| verify(mRequireScrollMixin).notifyScrollabilityChange(true); |
| |
| doReturn(20).when(mRecyclerView).computeVerticalScrollOffset(); |
| mListenerCaptor.getValue().onScrolled(mRecyclerView, 0, 20); |
| |
| verify(mRequireScrollMixin).notifyScrollabilityChange(false); |
| } |
| |
| @Test |
| public void testClickScrollButton() { |
| mDelegate.pageScrollDown(); |
| verify(mRecyclerView).smoothScrollBy(anyInt(), eq(50)); |
| } |
| } |