1 /* 2 * Copyright (C) 2016 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 package android.support.v7.widget; 17 18 19 import org.junit.Test; 20 import org.junit.runner.RunWith; 21 import org.junit.runners.Parameterized; 22 23 import android.view.View; 24 25 import java.util.ArrayList; 26 import java.util.List; 27 28 import static android.support.v7.widget.LinearLayoutManager.HORIZONTAL; 29 import static android.support.v7.widget.LinearLayoutManager.VERTICAL; 30 import static org.junit.Assert.assertEquals; 31 32 @RunWith(Parameterized.class) 33 public class GridLayoutManagerCachedBordersTest extends BaseGridLayoutManagerTest { 34 35 @Parameterized.Parameters(name = "{0}") params()36 public static List<Config> params() { 37 List<Config> testConfigurations = createBaseVariations(); 38 testConfigurations.addAll(cachedBordersTestConfigs()); 39 return testConfigurations; 40 } 41 42 private final Config mConfig; 43 GridLayoutManagerCachedBordersTest(Config config)44 public GridLayoutManagerCachedBordersTest(Config config) { 45 mConfig = config; 46 } 47 48 49 @Test gridCachedBorderstTest()50 public void gridCachedBorderstTest() throws Throwable { 51 RecyclerView recyclerView = setupBasic(mConfig); 52 waitForFirstLayout(recyclerView); 53 final boolean vertical = mConfig.mOrientation == GridLayoutManager.VERTICAL; 54 final int expectedSizeSum = vertical ? recyclerView.getWidth() : recyclerView.getHeight(); 55 final int lastVisible = mGlm.findLastVisibleItemPosition(); 56 for (int i = 0; i < lastVisible; i += mConfig.mSpanCount) { 57 if ((i + 1) * mConfig.mSpanCount - 1 < lastVisible) { 58 int childrenSizeSum = 0; 59 for (int j = 0; j < mConfig.mSpanCount; j++) { 60 View child = recyclerView.getChildAt(i * mConfig.mSpanCount + j); 61 childrenSizeSum += vertical ? child.getWidth() : child.getHeight(); 62 } 63 assertEquals(expectedSizeSum, childrenSizeSum); 64 } 65 } 66 } 67 cachedBordersTestConfigs()68 private static List<Config> cachedBordersTestConfigs() { 69 ArrayList<Config> configs = new ArrayList<Config>(); 70 final int[] spanCounts = new int[]{88, 279, 741}; 71 final int[] spanPerItem = new int[]{11, 9, 13}; 72 for (int orientation : new int[]{VERTICAL, HORIZONTAL}) { 73 for (boolean reverseLayout : new boolean[]{false, true}) { 74 for (int i = 0; i < spanCounts.length; i++) { 75 Config config = new Config(spanCounts[i], orientation, reverseLayout); 76 config.mSpanPerItem = spanPerItem[i]; 77 configs.add(config); 78 } 79 } 80 } 81 return configs; 82 } 83 } 84