| /* |
| * Copyright (C) 2012 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.text; |
| |
| import static android.text.Layout.Alignment.ALIGN_NORMAL; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import android.platform.test.annotations.Presubmit; |
| |
| import androidx.test.filters.SmallTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| /** |
| * Tests DynamicLayout updateBlocks method. |
| * |
| * Requires disabling access checks in the vm since this calls package-private APIs. |
| * |
| */ |
| @Presubmit |
| @SmallTest |
| @RunWith(AndroidJUnit4.class) |
| public class DynamicLayoutBlocksTest { |
| private DynamicLayout dl = new DynamicLayout("", new TextPaint(), 0, ALIGN_NORMAL, 0, 0, false); |
| private static final int ___ = DynamicLayout.INVALID_BLOCK_INDEX; |
| |
| private int[] initialBlockEnds; |
| private int[] initialBlockIndices; |
| |
| private void defineInitialState(int[] ends, int[] indices) { |
| initialBlockEnds = ends; |
| initialBlockIndices = indices; |
| assertEquals(initialBlockEnds.length, initialBlockIndices.length); |
| } |
| |
| public void printBlocks(String message) { |
| System.out.print(message); |
| for (int i = 0; i < dl.getNumberOfBlocks(); i++) { |
| System.out.print(" " + Integer.toString(dl.getBlockEndLines()[i])); |
| } |
| System.out.println(); |
| } |
| |
| public void checkInvariants() { |
| assertTrue(dl.getNumberOfBlocks() > 0); |
| assertTrue(dl.getNumberOfBlocks() <= dl.getBlockEndLines().length); |
| assertEquals(dl.getBlockEndLines().length, dl.getBlockIndices().length); |
| |
| for (int i = 1; i < dl.getNumberOfBlocks(); i++) { |
| assertTrue(dl.getBlockEndLines()[i] > dl.getBlockEndLines()[i-1]); |
| } |
| } |
| |
| private void update(int startLine, int endLine, int newLineCount) { |
| final int totalLines = initialBlockEnds[initialBlockEnds.length - 1] |
| + newLineCount - endLine + startLine; |
| dl.setBlocksDataForTest( |
| initialBlockEnds, initialBlockIndices, initialBlockEnds.length, totalLines); |
| checkInvariants(); |
| dl.updateBlocks(startLine, endLine, newLineCount); |
| } |
| |
| private void assertState(int[] sizes, int[] indices) { |
| checkInvariants(); |
| |
| assertEquals(sizes.length, dl.getNumberOfBlocks()); |
| assertEquals(indices.length, dl.getNumberOfBlocks()); |
| |
| int[] ends = new int[sizes.length]; |
| for (int i = 0; i < ends.length; i++) { |
| ends[i] = i == 0 ? (sizes[0] == 0 ? 0 : sizes[0] - 1) : ends[i - 1] + sizes[i]; |
| } |
| |
| for (int i = 0; i < dl.getNumberOfBlocks(); i++) { |
| assertEquals(ends[i], dl.getBlockEndLines()[i]); |
| assertEquals(indices[i], dl.getBlockIndices()[i]); |
| } |
| } |
| |
| private void assertState(int[] sizes) { |
| int[] ids = new int[sizes.length]; |
| for (int i = 0; i < sizes.length; i++) { |
| ids[i] = DynamicLayout.INVALID_BLOCK_INDEX; |
| } |
| assertState(sizes, ids); |
| } |
| |
| @Test |
| public void testFrom0() { |
| defineInitialState( new int[] { 0 }, new int[] { 123 }); |
| |
| update(0, 0, 0); |
| assertState( new int[] { 0 } ); |
| |
| update(0, 0, 1); |
| assertState( new int[] { 0 } ); |
| |
| update(0, 0, 10); |
| assertState( new int[] { 10 } ); |
| } |
| |
| @Test |
| public void testFrom1ReplaceByEmpty() { |
| defineInitialState( new int[] { 100 }, new int[] { 123 }); |
| |
| update(0, 0, 0); |
| assertState( new int[] { 100 } ); |
| |
| update(0, 10, 0); |
| assertState( new int[] { 90 } ); |
| |
| update(0, 100, 0); |
| assertState( new int[] { 0 } ); |
| |
| update(20, 30, 0); |
| assertState( new int[] { 20, 70 } ); |
| |
| update(20, 20, 0); |
| assertState( new int[] { 20, 80 } ); |
| |
| update(40, 100, 0); |
| assertState( new int[] { 40 } ); |
| |
| update(100, 100, 0); |
| assertState( new int[] { 100 } ); |
| } |
| |
| @Test |
| public void testFrom1ReplaceFromFirstLine() { |
| defineInitialState( new int[] { 100 }, new int[] { 123 }); |
| |
| update(0, 0, 1); |
| assertState( new int[] { 0, 100 } ); |
| |
| update(0, 0, 10); |
| assertState( new int[] { 10, 100 } ); |
| |
| update(0, 30, 31); |
| assertState( new int[] { 31, 70 } ); |
| |
| update(0, 100, 20); |
| assertState( new int[] { 20 } ); |
| } |
| |
| @Test |
| public void testFrom1ReplaceFromCenter() { |
| defineInitialState( new int[] { 100 }, new int[] { 123 }); |
| |
| update(20, 20, 1); |
| assertState( new int[] { 20, 1, 80 } ); |
| |
| update(20, 20, 10); |
| assertState( new int[] { 20, 10, 80 } ); |
| |
| update(20, 30, 50); |
| assertState( new int[] { 20, 50, 70 } ); |
| |
| update(20, 100, 50); |
| assertState( new int[] { 20, 50 } ); |
| } |
| |
| @Test |
| public void testFrom1ReplaceFromEnd() { |
| defineInitialState( new int[] { 100 }, new int[] { 123 }); |
| |
| update(100, 100, 0); |
| assertState( new int[] { 100 } ); |
| |
| update(100, 100, 1); |
| assertState( new int[] { 100, 1 } ); |
| |
| update(100, 100, 10); |
| assertState( new int[] { 100, 10 } ); |
| } |
| |
| @Test |
| public void testFrom2ReplaceFromFirstLine() { |
| defineInitialState( new int[] { 10, 20 }, new int[] { 123, 456 }); |
| |
| update(0, 4, 50); |
| assertState( new int[] { 50, 10-4, 20-10 }, new int[] { ___, ___, 456 } ); |
| |
| update(0, 10, 50); |
| assertState( new int[] { 50, 20-10 }, new int[] { ___, 456 } ); |
| |
| update(0, 15, 50); |
| assertState( new int[] { 50, 20-15 }, new int[] { ___, ___ } ); |
| |
| update(0, 20, 50); |
| assertState( new int[] { 50 }, new int[] { ___ } ); |
| } |
| |
| @Test |
| public void testFrom2ReplaceFromFirstBlock() { |
| defineInitialState( new int[] { 10, 20 }, new int[] { 123, 456 }); |
| |
| update(3, 7, 50); |
| assertState( new int[] { 3, 50, 10-7, 20-10 }, new int[] { ___, ___, ___, 456 } ); |
| |
| update(3, 10, 50); |
| assertState( new int[] { 3, 50, 20-10 }, new int[] { ___, ___, 456 } ); |
| |
| update(3, 14, 50); |
| assertState( new int[] { 3, 50, 20-14 }, new int[] { ___, ___, ___ } ); |
| |
| update(3, 20, 50); |
| assertState( new int[] { 3, 50 }, new int[] { ___, ___ } ); |
| } |
| |
| @Test |
| public void testFrom2ReplaceFromBottomBoundary() { |
| defineInitialState( new int[] { 10, 20 }, new int[] { 123, 456 }); |
| |
| update(10, 10, 50); |
| assertState( new int[] { 10, 50, 20-10 }, new int[] { ___, ___, 456 } ); |
| |
| update(10, 14, 50); |
| assertState( new int[] { 10, 50, 20-14 }, new int[] { ___, ___, ___ } ); |
| |
| update(10, 20, 50); |
| assertState( new int[] { 10, 50 }, new int[] { ___, ___ } ); |
| } |
| |
| @Test |
| public void testFrom2ReplaceFromTopBoundary() { |
| defineInitialState( new int[] { 10, 20 }, new int[] { 123, 456 }); |
| |
| update(11, 11, 50); |
| assertState( new int[] { 11, 50, 20-11 }, new int[] { 123, ___, ___ } ); |
| |
| update(11, 14, 50); |
| assertState( new int[] { 11, 50, 20-14 }, new int[] { 123, ___, ___ } ); |
| |
| update(11, 20, 50); |
| assertState( new int[] { 11, 50 }, new int[] { 123, ___ } ); |
| } |
| |
| @Test |
| public void testFrom2ReplaceFromSecondBlock() { |
| defineInitialState( new int[] { 10, 20 }, new int[] { 123, 456 }); |
| |
| update(14, 14, 50); |
| assertState( new int[] { 11, 14-11, 50, 20-14 }, new int[] { 123, ___, ___, ___ } ); |
| |
| update(14, 17, 50); |
| assertState( new int[] { 11, 14-11, 50, 20-17 }, new int[] { 123, ___, ___, ___ } ); |
| |
| update(14, 20, 50); |
| assertState( new int[] { 11, 14-11, 50 }, new int[] { 123, ___, ___ } ); |
| } |
| |
| @Test |
| public void testFrom2RemoveFromFirst() { |
| defineInitialState( new int[] { 10, 20 }, new int[] { 123, 456 }); |
| |
| update(0, 4, 0); |
| assertState( new int[] { 10-4, 20-10 }, new int[] { ___, 456 } ); |
| |
| update(0, 10, 0); |
| assertState( new int[] { 20-10 }, new int[] { 456 } ); |
| |
| update(0, 14, 0); |
| assertState( new int[] { 20-14 }, new int[] { ___ } ); |
| |
| update(0, 20, 0); |
| assertState( new int[] { 0 }, new int[] { ___ } ); |
| } |
| |
| @Test |
| public void testFrom2RemoveFromFirstBlock() { |
| defineInitialState( new int[] { 10, 20 }, new int[] { 123, 456 }); |
| |
| update(4, 7, 0); |
| assertState( new int[] { 4, 10-7, 20-10 }, new int[] { ___, ___, 456 } ); |
| |
| update(4, 10, 0); |
| assertState( new int[] { 4, 20-10 }, new int[] { ___, 456 } ); |
| |
| update(4, 14, 0); |
| assertState( new int[] { 4, 20-14 }, new int[] { ___, ___ } ); |
| |
| update(4, 20, 0); |
| assertState( new int[] { 4 }, new int[] { ___ } ); |
| } |
| |
| @Test |
| public void testFrom2RemoveFromSecondBlock() { |
| defineInitialState( new int[] { 10, 20 }, new int[] { 123, 456 }); |
| |
| update(14, 17, 0); |
| assertState( new int[] { 11, 14-11, 20-17 }, new int[] { 123, ___, ___ } ); |
| |
| update(14, 20, 0); |
| assertState( new int[] { 11, 14-11 }, new int[] { 123, ___ } ); |
| } |
| |
| @Test |
| public void testFrom3ReplaceFromFirstBlock() { |
| defineInitialState( new int[] { 10, 30, 60 }, new int[] { 123, 456, 789 }); |
| |
| update(3, 7, 50); |
| assertState( new int[] { 3, 50, 10-7, 30-10, 60-30 }, new int[] { ___, ___, ___, 456, 789 } ); |
| |
| update(3, 10, 50); |
| assertState( new int[] { 3, 50, 30-10, 60-30 }, new int[] { ___, ___, 456, 789 } ); |
| |
| update(3, 17, 50); |
| assertState( new int[] { 3, 50, 30-17, 60-30 }, new int[] { ___, ___, ___, 789 } ); |
| |
| update(3, 30, 50); |
| assertState( new int[] { 3, 50, 60-30 }, new int[] { ___, ___, 789 } ); |
| |
| update(3, 40, 50); |
| assertState( new int[] { 3, 50, 60-40 }, new int[] { ___, ___, ___ } ); |
| |
| update(3, 60, 50); |
| assertState( new int[] { 3, 50 }, new int[] { ___, ___ } ); |
| } |
| |
| @Test |
| public void testFrom3ReplaceFromSecondBlock() { |
| defineInitialState( new int[] { 10, 30, 60 }, new int[] { 123, 456, 789 }); |
| |
| update(13, 17, 50); |
| assertState( new int[] { 11, 2, 50, 30-17, 60-30 }, new int[] { 123, ___, ___, ___, 789 } ); |
| |
| update(13, 30, 50); |
| assertState( new int[] { 11, 2, 50, 60-30 }, new int[] { 123, ___, ___, 789 } ); |
| |
| update(13, 40, 50); |
| assertState( new int[] { 11, 2, 50, 60-40 }, new int[] { 123, ___, ___, ___ } ); |
| |
| update(13, 60, 50); |
| assertState( new int[] { 11, 2, 50 }, new int[] { 123, ___, ___ } ); |
| } |
| } |