/*
* Copyright (C) 2015 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 android.support.v17.leanback.widget;
/**
* Testing StaggeredGridDefault algorithm
* @hide
*/
public class StaggeredGridDefaultTest extends GridTest {
StaggeredGridDefault mStaggeredGrid;
public void testWhenToFillNextRow() throws Throwable {
mProvider = new Provider(new int[]{100, 100, 100, 100, 40, 100, 100, 30, 100});
// layout first 8 items then all items
mStaggeredGrid = new StaggeredGridDefault();
mStaggeredGrid.setNumRows(3);
mStaggeredGrid.setMargin(20);
mStaggeredGrid.setProvider(mProvider);
mStaggeredGrid.appendVisibleItems(210);
assertEquals(dump(mStaggeredGrid) + " Should fill 8 items",
8, mStaggeredGrid.mLocations.size());
// 2nd fill rest
mStaggeredGrid.appendVisibleItems(100000);
assertEquals(dump(mStaggeredGrid) + " Should fill 9 items",
9, mStaggeredGrid.mLocations.size());
int row_result1 = mStaggeredGrid.getLocation(8).row;
assertEquals(dump(mStaggeredGrid) + " last item should be placed on row 1",
1, row_result1);
// layout all items together
mStaggeredGrid = new StaggeredGridDefault();
mStaggeredGrid.setNumRows(3);
mStaggeredGrid.setMargin(20);
mStaggeredGrid.setProvider(mProvider);
mStaggeredGrid.appendVisibleItems(100000);
assertEquals(dump(mStaggeredGrid) + " should fill 9 items",
9, mStaggeredGrid.mLocations.size());
int row_result2 = mStaggeredGrid.getLocation(8).row;
assertEquals(dump(mStaggeredGrid) + " last item should be placed on row 1",
1, row_result2);
}
}