1 /* 2 * Copyright (C) 2015 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 #include "minikin/FontCollection.h" 18 19 #include <gtest/gtest.h> 20 21 #include "FontTestUtils.h" 22 #include "MinikinInternal.h" 23 24 namespace minikin { 25 26 // The test font has following glyphs. 27 // U+82A6 28 // U+82A6 U+FE00 (VS1) 29 // U+82A6 U+E0100 (VS17) 30 // U+82A6 U+E0101 (VS18) 31 // U+82A6 U+E0102 (VS19) 32 // U+845B 33 // U+845B U+FE01 (VS2) 34 // U+845B U+E0101 (VS18) 35 // U+845B U+E0102 (VS19) 36 // U+845B U+E0103 (VS20) 37 // U+537F 38 // U+717D U+FE02 (VS3) 39 // U+717D U+E0102 (VS19) 40 // U+717D U+E0103 (VS20) 41 const char kVsTestFont[] = "VariationSelectorTest-Regular.ttf"; 42 43 void expectVSGlyphs(const FontCollection* fc, uint32_t codepoint, const std::set<uint32_t>& vsSet) { 44 for (uint32_t vs = 0xFE00; vs <= 0xE01EF; ++vs) { 45 // Move to variation selectors supplements after variation selectors. 46 if (vs == 0xFF00) { 47 vs = 0xE0100; 48 } 49 if (vsSet.find(vs) == vsSet.end()) { 50 EXPECT_FALSE(fc->hasVariationSelector(codepoint, vs)) 51 << "Glyph for U+" << std::hex << codepoint << " U+" << vs; 52 } else { 53 EXPECT_TRUE(fc->hasVariationSelector(codepoint, vs)) 54 << "Glyph for U+" << std::hex << codepoint << " U+" << vs; 55 } 56 } 57 } 58 59 TEST(FontCollectionTest, hasVariationSelectorTest) { 60 auto fc = buildFontCollection(kVsTestFont); 61 62 EXPECT_FALSE(fc->hasVariationSelector(0x82A6, 0)); 63 expectVSGlyphs(fc.get(), 0x82A6, 64 std::set<uint32_t>({0xFE00, 0xFE0E, 0xE0100, 0xE0101, 0xE0102})); 65 66 EXPECT_FALSE(fc->hasVariationSelector(0x845B, 0)); 67 expectVSGlyphs(fc.get(), 0x845B, 68 std::set<uint32_t>({0xFE01, 0xFE0E, 0xE0101, 0xE0102, 0xE0103})); 69 70 EXPECT_FALSE(fc->hasVariationSelector(0x537F, 0)); 71 expectVSGlyphs(fc.get(), 0x537F, std::set<uint32_t>({0xFE0E})); 72 73 EXPECT_FALSE(fc->hasVariationSelector(0x717D, 0)); 74 expectVSGlyphs(fc.get(), 0x717D, std::set<uint32_t>({0xFE02, 0xE0102, 0xE0103})); 75 } 76 77 const char kEmojiXmlFile[] = "emoji.xml"; 78 79 TEST(FontCollectionTest, hasVariationSelectorTest_emoji) { 80 auto collection = buildFontCollectionFromXml(kEmojiXmlFile); 81 82 // Both text/color font have cmap format 14 subtable entry for VS15/VS16 respectively. 83 EXPECT_TRUE(collection->hasVariationSelector(0x2623, 0xFE0E)); 84 EXPECT_TRUE(collection->hasVariationSelector(0x2623, 0xFE0F)); 85 86 // The text font has cmap format 14 subtable entry for VS15 but the color font doesn't have for 87 // VS16 88 EXPECT_TRUE(collection->hasVariationSelector(0x2626, 0xFE0E)); 89 EXPECT_FALSE(collection->hasVariationSelector(0x2626, 0xFE0F)); 90 91 // The color font has cmap format 14 subtable entry for VS16 but the text font doesn't have for 92 // VS15. 93 EXPECT_TRUE(collection->hasVariationSelector(0x262A, 0xFE0E)); 94 EXPECT_TRUE(collection->hasVariationSelector(0x262A, 0xFE0F)); 95 96 // Neither text/color font have cmap format 14 subtable entry for VS15/VS16. 97 EXPECT_TRUE(collection->hasVariationSelector(0x262E, 0xFE0E)); 98 EXPECT_FALSE(collection->hasVariationSelector(0x262E, 0xFE0F)); 99 100 // Text font doesn't support U+1F3FD. Only the color emoji fonts has. So VS15 is not supported. 101 EXPECT_FALSE(collection->hasVariationSelector(0x1F3FD, 0xFE0E)); 102 103 // Text font doesn't have U+262F U+FE0E or even its base code point U+262F. 104 EXPECT_FALSE(collection->hasVariationSelector(0x262F, 0xFE0E)); 105 106 // None of the fonts support U+2229. 107 EXPECT_FALSE(collection->hasVariationSelector(0x2229, 0xFE0E)); 108 EXPECT_FALSE(collection->hasVariationSelector(0x2229, 0xFE0F)); 109 } 110 111 TEST(FontCollectionTest, newEmojiTest) { 112 auto collection = buildFontCollectionFromXml(kEmojiXmlFile); 113 114 // U+2695, U+2640, U+2642 are not in emoji catrgory in Unicode 9 but they are now in emoji 115 // category. Should return true even if U+FE0E was appended. 116 // These three emojis are only avalilable in TextEmoji.ttf but U+2695 is excluded here since it 117 // is used in other tests. 118 EXPECT_TRUE(collection->hasVariationSelector(0x2640, 0xFE0E)); 119 EXPECT_FALSE(collection->hasVariationSelector(0x2640, 0xFE0F)); 120 EXPECT_TRUE(collection->hasVariationSelector(0x2642, 0xFE0E)); 121 EXPECT_FALSE(collection->hasVariationSelector(0x2642, 0xFE0F)); 122 } 123 124 TEST(FontCollectionTest, createWithVariations) { 125 // This font has 'wdth' and 'wght' axes. 126 const char kMultiAxisFont[] = "MultiAxis.ttf"; 127 const char kNoAxisFont[] = "Regular.ttf"; 128 129 std::shared_ptr<FontCollection> multiAxisFc = buildFontCollection(kMultiAxisFont); 130 std::shared_ptr<FontCollection> noAxisFc = buildFontCollection(kNoAxisFont); 131 132 { 133 // Do not ceate new instance if none of variations are specified. 134 EXPECT_EQ(nullptr, 135 multiAxisFc->createCollectionWithVariation(std::vector<FontVariation>())); 136 EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(std::vector<FontVariation>())); 137 } 138 { 139 // New instance should be used for supported variation. 140 std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f}}; 141 std::shared_ptr<FontCollection> newFc( 142 multiAxisFc->createCollectionWithVariation(variations)); 143 EXPECT_NE(nullptr, newFc.get()); 144 EXPECT_NE(multiAxisFc.get(), newFc.get()); 145 146 EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations)); 147 } 148 { 149 // New instance should be used for supported variation (multiple variations case). 150 std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f}, 151 {MinikinFont::MakeTag('w', 'g', 'h', 't'), 1.0f}}; 152 std::shared_ptr<FontCollection> newFc( 153 multiAxisFc->createCollectionWithVariation(variations)); 154 EXPECT_NE(nullptr, newFc.get()); 155 EXPECT_NE(multiAxisFc.get(), newFc.get()); 156 157 EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations)); 158 } 159 { 160 // Do not ceate new instance if none of variations are supported. 161 std::vector<FontVariation> variations = {{MinikinFont::MakeTag('Z', 'Z', 'Z', 'Z'), 1.0f}}; 162 EXPECT_EQ(nullptr, multiAxisFc->createCollectionWithVariation(variations)); 163 EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations)); 164 } 165 { 166 // At least one axis is supported, should create new instance. 167 std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f}, 168 {MinikinFont::MakeTag('Z', 'Z', 'Z', 'Z'), 1.0f}}; 169 std::shared_ptr<FontCollection> newFc( 170 multiAxisFc->createCollectionWithVariation(variations)); 171 EXPECT_NE(nullptr, newFc.get()); 172 EXPECT_NE(multiAxisFc.get(), newFc.get()); 173 174 EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations)); 175 } 176 } 177 178 } // namespace minikin 179
