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 <gtest/gtest.h>
18
19 #include <minikin/FontCollection.h>
20 #include "FontTestUtils.h"
21 #include "MinikinFontForTest.h"
22 #include "MinikinInternal.h"
23
24 namespace android {
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[] = kTestFontDir "/VarioationSelectorTest-Regular.ttf";
42
expectVSGlyphs(const FontCollection & fc,uint32_t codepoint,const std::set<uint32_t> & vsSet)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
TEST(FontCollectionTest,hasVariationSelectorTest)59 TEST(FontCollectionTest, hasVariationSelectorTest) {
60 FontFamily* family = new FontFamily();
61 family->addFont(new MinikinFontForTest(kVsTestFont));
62 std::vector<FontFamily*> families({family});
63 FontCollection fc(families);
64 family->Unref();
65
66 EXPECT_FALSE(fc.hasVariationSelector(0x82A6, 0));
67 expectVSGlyphs(fc, 0x82A6, std::set<uint32_t>({0xFE00, 0xE0100, 0xE0101, 0xE0102}));
68
69 EXPECT_FALSE(fc.hasVariationSelector(0x845B, 0));
70 expectVSGlyphs(fc, 0x845B, std::set<uint32_t>({0xFE01, 0xE0101, 0xE0102, 0xE0103}));
71
72 EXPECT_FALSE(fc.hasVariationSelector(0x537F, 0));
73 expectVSGlyphs(fc, 0x537F, std::set<uint32_t>({}));
74
75 EXPECT_FALSE(fc.hasVariationSelector(0x717D, 0));
76 expectVSGlyphs(fc, 0x717D, std::set<uint32_t>({0xFE02, 0xE0102, 0xE0103}));
77 }
78
79 const char kEmojiXmlFile[] = kTestFontDir "emoji.xml";
80
TEST(FontCollectionTest,hasVariationSelectorTest_emoji)81 TEST(FontCollectionTest, hasVariationSelectorTest_emoji) {
82 MinikinAutoUnref<FontCollection> collection(getFontCollection(kTestFontDir, kEmojiXmlFile));
83
84 // Both text/color font have cmap format 14 subtable entry for VS15/VS16 respectively.
85 EXPECT_TRUE(collection->hasVariationSelector(0x2623, 0xFE0E));
86 EXPECT_TRUE(collection->hasVariationSelector(0x2623, 0xFE0F));
87
88 // The text font has cmap format 14 subtable entry for VS15 but the color font doesn't have for
89 // VS16
90 EXPECT_TRUE(collection->hasVariationSelector(0x2626, 0xFE0E));
91 EXPECT_FALSE(collection->hasVariationSelector(0x2626, 0xFE0F));
92
93 // The color font has cmap format 14 subtable entry for VS16 but the text font doesn't have for
94 // VS15.
95 EXPECT_TRUE(collection->hasVariationSelector(0x262A, 0xFE0E));
96 EXPECT_TRUE(collection->hasVariationSelector(0x262A, 0xFE0F));
97
98 // Neither text/color font have cmap format 14 subtable entry for VS15/VS16.
99 EXPECT_TRUE(collection->hasVariationSelector(0x262E, 0xFE0E));
100 EXPECT_FALSE(collection->hasVariationSelector(0x262E, 0xFE0F));
101
102 // Text font doesn't have U+262F U+FE0E or even its base code point U+262F.
103 EXPECT_FALSE(collection->hasVariationSelector(0x262F, 0xFE0E));
104
105 // VS15/VS16 is only for emoji, should return false for not an emoji code point.
106 EXPECT_FALSE(collection->hasVariationSelector(0x2229, 0xFE0E));
107 EXPECT_FALSE(collection->hasVariationSelector(0x2229, 0xFE0F));
108
109 }
110
TEST(FontCollectionTest,newEmojiTest)111 TEST(FontCollectionTest, newEmojiTest) {
112 MinikinAutoUnref<FontCollection> collection(getFontCollection(kTestFontDir, 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 } // namespace android
125