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 17 package com.android.internal.widget; 18 19 import static org.junit.Assert.assertEquals; 20 import static org.junit.Assert.assertFalse; 21 import static org.junit.Assert.assertTrue; 22 23 import android.content.Context; 24 import android.support.test.InstrumentationRegistry; 25 import android.support.test.filters.SmallTest; 26 import android.view.LayoutInflater; 27 import android.view.View.MeasureSpec; 28 29 import com.android.frameworks.coretests.R; 30 import com.google.common.base.Function; 31 32 import org.junit.Before; 33 import org.junit.Test; 34 35 import java.lang.reflect.Field; 36 37 @SmallTest 38 public class MessagingLinearLayoutTest { 39 40 public static final int WIDTH_SPEC = MeasureSpec.makeMeasureSpec(500, MeasureSpec.EXACTLY); 41 public static final int HEIGHT_SPEC = MeasureSpec.makeMeasureSpec(400, MeasureSpec.AT_MOST); 42 private Context mContext; 43 private MessagingLinearLayout mView; 44 45 @Before 46 public void setup() { 47 mContext = InstrumentationRegistry.getTargetContext(); 48 // spacing: 5px 49 mView = (MessagingLinearLayout) LayoutInflater.from(mContext).inflate( 50 R.layout.messaging_linear_layout_test, null); 51 } 52 53 @Test 54 public void testSingleChild() { 55 FakeImageFloatingTextView child = fakeChild((i) -> 3); 56 57 mView.setNumIndentLines(2); 58 mView.addView(child); 59 60 mView.measure(WIDTH_SPEC, HEIGHT_SPEC); 61 mView.layout(0, 0, mView.getMeasuredWidth(), mView.getMeasuredHeight()); 62 63 assertEquals(3, child.getNumIndentLines()); 64 assertFalse(child.isHidden()); 65 assertEquals(150, mView.getMeasuredHeight()); 66 } 67 68 @Test 69 public void testLargeSmall() { 70 FakeImageFloatingTextView child1 = fakeChild((i) -> 3); 71 FakeImageFloatingTextView child2 = fakeChild((i) -> 1); 72 73 mView.setNumIndentLines(2); 74 mView.addView(child1); 75 mView.addView(child2); 76 77 mView.measure(WIDTH_SPEC, HEIGHT_SPEC); 78 mView.layout(0, 0, mView.getMeasuredWidth(), mView.getMeasuredHeight()); 79 80 assertEquals(3, child1.getNumIndentLines()); 81 assertEquals(0, child2.getNumIndentLines()); 82 assertFalse("child1 should not be hidden", child1.isHidden()); 83 assertFalse("child2 should not be hidden", child2.isHidden()); 84 assertEquals(205, mView.getMeasuredHeight()); 85 } 86 87 @Test 88 public void testSmallSmall() { 89 FakeImageFloatingTextView child1 = fakeChild((i) -> 1); 90 FakeImageFloatingTextView child2 = fakeChild((i) -> 1); 91 92 mView.setNumIndentLines(2); 93 mView.addView(child1); 94 mView.addView(child2); 95 96 mView.measure(WIDTH_SPEC, HEIGHT_SPEC); 97 mView.layout(0, 0, mView.getMeasuredWidth(), mView.getMeasuredHeight()); 98 99 assertEquals(2, child1.getNumIndentLines()); 100 assertEquals(1, child2.getNumIndentLines()); 101 assertFalse("child1 should not be hidden", child1.isHidden()); 102 assertFalse("child2 should not be hidden", child2.isHidden()); 103 assertEquals(105, mView.getMeasuredHeight()); 104 } 105 106 @Test 107 public void testLargeLarge() { 108 FakeImageFloatingTextView child1 = fakeChild((i) -> 7); 109 FakeImageFloatingTextView child2 = fakeChild((i) -> 7); 110 111 mView.setNumIndentLines(2); 112 mView.addView(child1); 113 mView.addView(child2); 114 115 mView.measure(WIDTH_SPEC, HEIGHT_SPEC); 116 mView.layout(0, 0, mView.getMeasuredWidth(), mView.getMeasuredHeight()); 117 118 assertEquals(3, child2.getNumIndentLines()); 119 assertTrue("child1 should be hidden", child1.isHidden()); 120 assertFalse("child2 should not be hidden", child2.isHidden()); 121 assertEquals(350, mView.getMeasuredHeight()); 122 } 123 124 @Test 125 public void testLargeSmall_largeWrapsWith3indentbutNotFullHeight_andHitsMax() { 126 FakeImageFloatingTextView child1 = fakeChild((i) -> i > 2 ? 7 : 6); 127 FakeImageFloatingTextView child2 = fakeChild((i) -> 1); 128 129 mView.setNumIndentLines(2); 130 mView.addView(child1); 131 mView.addView(child2); 132 133 mView.measure(WIDTH_SPEC, HEIGHT_SPEC); 134 mView.layout(0, 0, mView.getMeasuredWidth(), mView.getMeasuredHeight()); 135 136 assertFalse("child1 should not be hidden", child1.isHidden()); 137 assertFalse("child2 should not be hidden", child2.isHidden()); 138 assertEquals(355, mView.getMeasuredHeight()); 139 assertEquals(3, child1.getNumIndentLines()); 140 assertEquals(0, child2.getNumIndentLines()); 141 } 142 143 @Test 144 public void testLargeSmall_largeWrapsWith3indentbutnot3() { 145 FakeImageFloatingTextView child1 = fakeChild((i) -> i > 2 ? 4 : 3); 146 FakeImageFloatingTextView child2 = fakeChild((i) -> 1); 147 148 mView.setNumIndentLines(2); 149 mView.addView(child1); 150 mView.addView(child2); 151 152 mView.measure(WIDTH_SPEC, HEIGHT_SPEC); 153 mView.layout(0, 0, mView.getMeasuredWidth(), mView.getMeasuredHeight()); 154 155 assertFalse("child1 should not be hidden", child1.isHidden()); 156 assertFalse("child2 should not be hidden", child2.isHidden()); 157 assertEquals(255, mView.getMeasuredHeight()); 158 assertEquals(3, child1.getNumIndentLines()); 159 assertEquals(0, child2.getNumIndentLines()); 160 } 161 162 private class FakeImageFloatingTextView extends ImageFloatingTextView { 163 164 public static final int LINE_HEIGHT = 50; 165 private final Function<Integer, Integer> mLinesForIndent; 166 private int mNumIndentLines; 167 168 public FakeImageFloatingTextView(Context context, 169 Function<Integer, Integer> linesForIndent) { 170 super(context, null, 0, 0); 171 mLinesForIndent = linesForIndent; 172 } 173 174 @Override 175 public boolean setNumIndentLines(int lines) { 176 boolean changed = (mNumIndentLines != lines); 177 mNumIndentLines = lines; 178 return changed; 179 } 180 181 public int getNumIndentLines() { 182 return mNumIndentLines; 183 } 184 185 @Override 186 public int getLayoutHeight() { 187 return Math.max(LINE_HEIGHT, getMeasuredHeight()); 188 } 189 190 @Override 191 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 192 setMeasuredDimension( 193 getDefaultSize(500, widthMeasureSpec), 194 clampToMultiplesOfLineHeight(resolveSize(getDesiredHeight(), 195 heightMeasureSpec))); 196 } 197 198 private int clampToMultiplesOfLineHeight(int size) { 199 if (size <= LINE_HEIGHT) { 200 return size; 201 } 202 return (size / LINE_HEIGHT) * LINE_HEIGHT; 203 } 204 205 @Override 206 public int getLineCount() { 207 return mLinesForIndent.apply(mNumIndentLines); 208 } 209 210 public int getDesiredHeight() { 211 return LINE_HEIGHT * getLineCount(); 212 } 213 214 @Override 215 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 216 // swallow 217 } 218 219 public boolean isHidden() { 220 MessagingLinearLayout.LayoutParams lp = 221 (MessagingLinearLayout.LayoutParams) getLayoutParams(); 222 try { 223 Field hide = MessagingLinearLayout.LayoutParams.class.getDeclaredField("hide"); 224 hide.setAccessible(true); 225 return hide.getBoolean(lp); 226 } catch (ReflectiveOperationException e) { 227 throw new RuntimeException(e); 228 } 229 } 230 } 231 232 private FakeImageFloatingTextView fakeChild(Function<Integer,Integer> linesForIndent) { 233 return new FakeImageFloatingTextView(mContext, linesForIndent); 234 } 235 } 236
