1/* 2 * Copyright (C) 2017 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 */ 16package android.support.text.emoji; 17 18import static org.junit.Assert.assertEquals; 19import static org.junit.Assert.assertSame; 20 21import android.support.test.filters.SdkSuppress; 22import android.support.test.filters.SmallTest; 23import android.support.test.runner.AndroidJUnit4; 24import android.support.text.emoji.MetadataRepo.Node; 25 26import org.junit.Before; 27import org.junit.Test; 28import org.junit.runner.RunWith; 29 30@SmallTest 31@RunWith(AndroidJUnit4.class) 32@SdkSuppress(minSdkVersion = 19) 33public class MetadataRepoTest { 34 35 MetadataRepo mMetadataRepo; 36 37 @Before 38 public void clearResourceIndex() { 39 mMetadataRepo = new MetadataRepo(); 40 } 41 42 @Test(expected = NullPointerException.class) 43 public void testPut_withNullMetadata() { 44 mMetadataRepo.put(null); 45 } 46 47 @Test(expected = IllegalArgumentException.class) 48 public void testPut_withEmptyKeys() { 49 mMetadataRepo.put(new TestEmojiMetadata(new int[0])); 50 } 51 52 @Test 53 public void testPut_withSingleCodePointMapping() { 54 final int[] codePoint = new int[]{1}; 55 final TestEmojiMetadata metadata = new TestEmojiMetadata(codePoint); 56 mMetadataRepo.put(metadata); 57 assertSame(metadata, getNode(codePoint)); 58 } 59 60 @Test 61 public void testPut_withMultiCodePointsMapping() { 62 final int[] codePoint = new int[]{1, 2, 3, 4}; 63 final TestEmojiMetadata metadata = new TestEmojiMetadata(codePoint); 64 mMetadataRepo.put(metadata); 65 assertSame(metadata, getNode(codePoint)); 66 67 assertEquals(null, getNode(new int[]{1})); 68 assertEquals(null, getNode(new int[]{1, 2})); 69 assertEquals(null, getNode(new int[]{1, 2, 3})); 70 assertEquals(null, getNode(new int[]{1, 2, 3, 5})); 71 } 72 73 @Test 74 public void testPut_sequentialCodePoints() { 75 final int[] codePoint1 = new int[]{1, 2, 3, 4}; 76 final EmojiMetadata metadata1 = new TestEmojiMetadata(codePoint1); 77 78 final int[] codePoint2 = new int[]{1, 2, 3}; 79 final EmojiMetadata metadata2 = new TestEmojiMetadata(codePoint2); 80 81 final int[] codePoint3 = new int[]{1, 2}; 82 final EmojiMetadata metadata3 = new TestEmojiMetadata(codePoint3); 83 84 mMetadataRepo.put(metadata1); 85 mMetadataRepo.put(metadata2); 86 mMetadataRepo.put(metadata3); 87 88 assertSame(metadata1, getNode(codePoint1)); 89 assertSame(metadata2, getNode(codePoint2)); 90 assertSame(metadata3, getNode(codePoint3)); 91 92 assertEquals(null, getNode(new int[]{1})); 93 assertEquals(null, getNode(new int[]{1, 2, 3, 4, 5})); 94 } 95 96 final EmojiMetadata getNode(final int[] codepoints) { 97 return getNode(mMetadataRepo.getRootNode(), codepoints, 0); 98 } 99 100 final EmojiMetadata getNode(Node node, final int[] codepoints, int start) { 101 if (codepoints.length < start) return null; 102 if (codepoints.length == start) return node.getData(); 103 104 final Node childNode = node.get(codepoints[start]); 105 if (childNode == null) return null; 106 return getNode(childNode, codepoints, start + 1); 107 } 108} 109