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/*
* 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));
}
}
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