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/FontFamily.h"
18
19 #include <gtest/gtest.h>
20
21 #include "minikin/LocaleList.h"
22
23 #include "BufferUtils.h"
24 #include "FontTestUtils.h"
25 #include "FreeTypeMinikinFontForTest.h"
26 #include "LocaleListCache.h"
27 #include "MinikinInternal.h"
28
29 namespace minikin {
30
createLocaleList(const std::string & input)31 static const LocaleList& createLocaleList(const std::string& input) {
32 uint32_t localeListId = LocaleListCache::getId(input);
33 return LocaleListCache::getById(localeListId);
34 }
35
createLocale(const std::string & input)36 static Locale createLocale(const std::string& input) {
37 uint32_t localeListId = LocaleListCache::getId(input);
38 return LocaleListCache::getById(localeListId)[0];
39 }
40
createLocaleWithoutICUSanitization(const std::string & input)41 static Locale createLocaleWithoutICUSanitization(const std::string& input) {
42 return Locale(input);
43 }
44
TEST(LocaleTest,basicTests)45 TEST(LocaleTest, basicTests) {
46 Locale defaultLocale;
47 Locale emptyLocale("");
48 Locale english = createLocale("en");
49 Locale french = createLocale("fr");
50 Locale und = createLocale("und");
51 Locale undZsye = createLocale("und-Zsye");
52
53 EXPECT_EQ(english, english);
54 EXPECT_EQ(french, french);
55
56 EXPECT_TRUE(defaultLocale != defaultLocale);
57 EXPECT_TRUE(emptyLocale != emptyLocale);
58 EXPECT_TRUE(defaultLocale != emptyLocale);
59 EXPECT_TRUE(defaultLocale != und);
60 EXPECT_TRUE(emptyLocale != und);
61 EXPECT_TRUE(english != defaultLocale);
62 EXPECT_TRUE(english != emptyLocale);
63 EXPECT_TRUE(english != french);
64 EXPECT_TRUE(english != undZsye);
65 EXPECT_TRUE(und != undZsye);
66 EXPECT_TRUE(english != und);
67 EXPECT_TRUE(createLocale("de-1901") != createLocale("de-1996"));
68
69 EXPECT_TRUE(defaultLocale.isUnsupported());
70 EXPECT_TRUE(emptyLocale.isUnsupported());
71
72 EXPECT_FALSE(english.isUnsupported());
73 EXPECT_FALSE(french.isUnsupported());
74 EXPECT_FALSE(und.isUnsupported());
75 EXPECT_FALSE(undZsye.isUnsupported());
76 }
77
TEST(LocaleTest,getStringTest)78 TEST(LocaleTest, getStringTest) {
79 EXPECT_EQ("en-Latn-US", createLocale("en").getString());
80 EXPECT_EQ("en-Latn-US", createLocale("en-Latn").getString());
81
82 // Capitalized language code or lowercased script should be normalized.
83 EXPECT_EQ("en-Latn-US", createLocale("EN-LATN").getString());
84 EXPECT_EQ("en-Latn-US", createLocale("EN-latn").getString());
85 EXPECT_EQ("en-Latn-US", createLocale("en-latn").getString());
86
87 // Invalid script should be kept.
88 EXPECT_EQ("en-Xyzt-US", createLocale("en-xyzt").getString());
89
90 EXPECT_EQ("en-Latn-US", createLocale("en-Latn-US").getString());
91 EXPECT_EQ("ja-Jpan-JP", createLocale("ja").getString());
92 EXPECT_EQ("zh-Hant-TW", createLocale("zh-TW").getString());
93 EXPECT_EQ("zh-Hant-HK", createLocale("zh-HK").getString());
94 EXPECT_EQ("zh-Hant-MO", createLocale("zh-MO").getString());
95 EXPECT_EQ("zh-Hans-CN", createLocale("zh").getString());
96 EXPECT_EQ("zh-Hans-CN", createLocale("zh-CN").getString());
97 EXPECT_EQ("zh-Hans-SG", createLocale("zh-SG").getString());
98 EXPECT_EQ("und", createLocale("und").getString());
99 EXPECT_EQ("und", createLocale("UND").getString());
100 EXPECT_EQ("und", createLocale("Und").getString());
101 EXPECT_EQ("und-Zsye", createLocale("und-Zsye").getString());
102 EXPECT_EQ("und-Zsye", createLocale("Und-ZSYE").getString());
103 EXPECT_EQ("und-Zsye", createLocale("Und-zsye").getString());
104
105 EXPECT_EQ("es-Latn-419", createLocale("es-Latn-419").getString());
106
107 // Variant
108 EXPECT_EQ("de-Latn-DE", createLocale("de").getString());
109 EXPECT_EQ("de-Latn-DE-1901", createLocale("de-1901").getString());
110 EXPECT_EQ("de-Latn-DE-1996", createLocale("de-DE-1996").getString());
111
112 // Line Break subtag
113 EXPECT_EQ("ja-Jpan-JP-u-lb-loose", createLocale("ja-JP-u-lb-loose").getString());
114 EXPECT_EQ("ja-Jpan-JP-u-lb-normal", createLocale("ja-JP-u-lb-normal").getString());
115 EXPECT_EQ("ja-Jpan-JP-u-lb-strict", createLocale("ja-JP-u-lb-strict").getString());
116 EXPECT_EQ("ja-Jpan-JP-u-lb-loose", createLocale("ja-JP-u-lb-loose-em-emoji").getString());
117 EXPECT_EQ("ja-Jpan-JP-u-lb-strict", createLocale("ja-JP-u-em-default-lb-strict").getString());
118 EXPECT_EQ("ja-Jpan-JP", createLocale("ja-JP-u-lb-bogus").getString());
119
120 // Emoji subtag is dropped from getString().
121 EXPECT_EQ("es-Latn-419", createLocale("es-419-u-em-emoji").getString());
122 EXPECT_EQ("es-Latn-419", createLocale("es-Latn-419-u-em-emoji").getString());
123
124 // This is not a necessary desired behavior, just known behavior.
125 EXPECT_EQ("en-Latn-US", createLocale("und-Abcdefgh").getString());
126 }
127
TEST(LocaleTest,invalidLanguageTagTest)128 TEST(LocaleTest, invalidLanguageTagTest) { // just make sure no crash happens
129 LocaleListCache::getId("ja-JP-u-lb-lb-strict");
130 }
131
TEST(LocaleTest,testReconstruction)132 TEST(LocaleTest, testReconstruction) {
133 EXPECT_EQ("en", createLocaleWithoutICUSanitization("en").getString());
134 EXPECT_EQ("fil", createLocaleWithoutICUSanitization("fil").getString());
135 EXPECT_EQ("und", createLocaleWithoutICUSanitization("und").getString());
136
137 EXPECT_EQ("en-Latn", createLocaleWithoutICUSanitization("en-Latn").getString());
138 EXPECT_EQ("fil-Taga", createLocaleWithoutICUSanitization("fil-Taga").getString());
139 EXPECT_EQ("und-Zsye", createLocaleWithoutICUSanitization("und-Zsye").getString());
140
141 EXPECT_EQ("en-US", createLocaleWithoutICUSanitization("en-US").getString());
142 EXPECT_EQ("fil-PH", createLocaleWithoutICUSanitization("fil-PH").getString());
143 EXPECT_EQ("es-419", createLocaleWithoutICUSanitization("es-419").getString());
144
145 EXPECT_EQ("en-Latn-US", createLocaleWithoutICUSanitization("en-Latn-US").getString());
146 EXPECT_EQ("fil-Taga-PH", createLocaleWithoutICUSanitization("fil-Taga-PH").getString());
147 EXPECT_EQ("es-Latn-419", createLocaleWithoutICUSanitization("es-Latn-419").getString());
148
149 // Possible minimum/maximum values.
150 EXPECT_EQ("aa", createLocaleWithoutICUSanitization("aa").getString());
151 EXPECT_EQ("zz", createLocaleWithoutICUSanitization("zz").getString());
152 EXPECT_EQ("aa-Aaaa", createLocaleWithoutICUSanitization("aa-Aaaa").getString());
153 EXPECT_EQ("zz-Zzzz", createLocaleWithoutICUSanitization("zz-Zzzz").getString());
154 EXPECT_EQ("aaa-Aaaa-AA", createLocaleWithoutICUSanitization("aaa-Aaaa-AA").getString());
155 EXPECT_EQ("zzz-Zzzz-ZZ", createLocaleWithoutICUSanitization("zzz-Zzzz-ZZ").getString());
156 EXPECT_EQ("aaa-Aaaa-000", createLocaleWithoutICUSanitization("aaa-Aaaa-000").getString());
157 EXPECT_EQ("zzz-Zzzz-999", createLocaleWithoutICUSanitization("zzz-Zzzz-999").getString());
158 }
159
TEST(LocaleTest,ReconstructFromIdentifierTest)160 TEST(LocaleTest, ReconstructFromIdentifierTest) {
161 std::string locales[] = {
162 // Language
163 "en",
164 "fil",
165 "und",
166 // Script
167 "en-Latn",
168 "fil-Taga",
169 "und-Zsye",
170 // Region
171 "en-US",
172 "fil-PH",
173 "es-419",
174 // Variant
175 "de-Latn-DE",
176 "de-Latn-DE-1901",
177 "de-Latn-DE-1996",
178 // Line break style
179 "ja-JP-u-lb-loose",
180 "ja-JP-u-lb-normal",
181 "ja-JP-u-lb-strict",
182 // Emoji subtag
183 "es-Latn-419-u-em-emoji",
184 // Everything
185 "de-Latn-DE-1996-u-lb-loose-u-em-emoji",
186 };
187 for (const std::string& locale : locales) {
188 EXPECT_EQ(createLocaleWithoutICUSanitization(locale),
189 Locale(createLocaleWithoutICUSanitization(locale).getIdentifier()))
190 << "locale = " << locale;
191 }
192 }
193
TEST(LocaleTest,ScriptEqualTest)194 TEST(LocaleTest, ScriptEqualTest) {
195 EXPECT_TRUE(createLocale("en").isEqualScript(createLocale("en")));
196 EXPECT_TRUE(createLocale("en-Latn").isEqualScript(createLocale("en")));
197 EXPECT_TRUE(createLocale("jp-Latn").isEqualScript(createLocale("en-Latn")));
198 EXPECT_TRUE(createLocale("en-Jpan").isEqualScript(createLocale("en-Jpan")));
199
200 EXPECT_FALSE(createLocale("en-Jpan").isEqualScript(createLocale("en-Hira")));
201 EXPECT_FALSE(createLocale("en-Jpan").isEqualScript(createLocale("en-Hani")));
202 }
203
TEST(LocaleTest,ScriptMatchTest)204 TEST(LocaleTest, ScriptMatchTest) {
205 const bool SUPPORTED = true;
206 const bool NOT_SUPPORTED = false;
207
208 struct TestCase {
209 const std::string baseScript;
210 const std::string requestedScript;
211 bool isSupported;
212 } testCases[] = {
213 // Same scripts
214 {"en-Latn", "Latn", SUPPORTED},
215 {"ja-Jpan", "Jpan", SUPPORTED},
216 {"ja-Hira", "Hira", SUPPORTED},
217 {"ja-Kana", "Kana", SUPPORTED},
218 {"ja-Hrkt", "Hrkt", SUPPORTED},
219 {"zh-Hans", "Hans", SUPPORTED},
220 {"zh-Hant", "Hant", SUPPORTED},
221 {"zh-Hani", "Hani", SUPPORTED},
222 {"ko-Kore", "Kore", SUPPORTED},
223 {"ko-Hang", "Hang", SUPPORTED},
224 {"zh-Hanb", "Hanb", SUPPORTED},
225
226 // Japanese supports Hiragana, Katakanara, etc.
227 {"ja-Jpan", "Hira", SUPPORTED},
228 {"ja-Jpan", "Kana", SUPPORTED},
229 {"ja-Jpan", "Hrkt", SUPPORTED},
230 {"ja-Hrkt", "Hira", SUPPORTED},
231 {"ja-Hrkt", "Kana", SUPPORTED},
232
233 // Chinese supports Han.
234 {"zh-Hans", "Hani", SUPPORTED},
235 {"zh-Hant", "Hani", SUPPORTED},
236 {"zh-Hanb", "Hani", SUPPORTED},
237
238 // Hanb supports Bopomofo.
239 {"zh-Hanb", "Bopo", SUPPORTED},
240
241 // Korean supports Hangul.
242 {"ko-Kore", "Hang", SUPPORTED},
243
244 // Different scripts
245 {"ja-Jpan", "Latn", NOT_SUPPORTED},
246 {"en-Latn", "Jpan", NOT_SUPPORTED},
247 {"ja-Jpan", "Hant", NOT_SUPPORTED},
248 {"zh-Hant", "Jpan", NOT_SUPPORTED},
249 {"ja-Jpan", "Hans", NOT_SUPPORTED},
250 {"zh-Hans", "Jpan", NOT_SUPPORTED},
251 {"ja-Jpan", "Kore", NOT_SUPPORTED},
252 {"ko-Kore", "Jpan", NOT_SUPPORTED},
253 {"zh-Hans", "Hant", NOT_SUPPORTED},
254 {"zh-Hant", "Hans", NOT_SUPPORTED},
255 {"zh-Hans", "Kore", NOT_SUPPORTED},
256 {"ko-Kore", "Hans", NOT_SUPPORTED},
257 {"zh-Hant", "Kore", NOT_SUPPORTED},
258 {"ko-Kore", "Hant", NOT_SUPPORTED},
259
260 // Hiragana doesn't support Japanese, etc.
261 {"ja-Hira", "Jpan", NOT_SUPPORTED},
262 {"ja-Kana", "Jpan", NOT_SUPPORTED},
263 {"ja-Hrkt", "Jpan", NOT_SUPPORTED},
264 {"ja-Hani", "Jpan", NOT_SUPPORTED},
265 {"ja-Hira", "Hrkt", NOT_SUPPORTED},
266 {"ja-Kana", "Hrkt", NOT_SUPPORTED},
267 {"ja-Hani", "Hrkt", NOT_SUPPORTED},
268 {"ja-Hani", "Hira", NOT_SUPPORTED},
269 {"ja-Hani", "Kana", NOT_SUPPORTED},
270
271 // Kanji doesn't support Chinese, etc.
272 {"zh-Hani", "Hant", NOT_SUPPORTED},
273 {"zh-Hani", "Hans", NOT_SUPPORTED},
274 {"zh-Hani", "Hanb", NOT_SUPPORTED},
275
276 // Hangul doesn't support Korean, etc.
277 {"ko-Hang", "Kore", NOT_SUPPORTED},
278 {"ko-Hani", "Kore", NOT_SUPPORTED},
279 {"ko-Hani", "Hang", NOT_SUPPORTED},
280 {"ko-Hang", "Hani", NOT_SUPPORTED},
281
282 // Han with botomofo doesn't support simplified Chinese, etc.
283 {"zh-Hanb", "Hant", NOT_SUPPORTED},
284 {"zh-Hanb", "Hans", NOT_SUPPORTED},
285 {"zh-Hanb", "Jpan", NOT_SUPPORTED},
286 {"zh-Hanb", "Kore", NOT_SUPPORTED},
287 };
288
289 for (const auto& testCase : testCases) {
290 hb_script_t script = hb_script_from_iso15924_tag(
291 HB_TAG(testCase.requestedScript[0], testCase.requestedScript[1],
292 testCase.requestedScript[2], testCase.requestedScript[3]));
293 if (testCase.isSupported) {
294 EXPECT_TRUE(createLocale(testCase.baseScript).supportsHbScript(script))
295 << testCase.baseScript << " should support " << testCase.requestedScript;
296 } else {
297 EXPECT_FALSE(createLocale(testCase.baseScript).supportsHbScript(script))
298 << testCase.baseScript << " shouldn't support " << testCase.requestedScript;
299 }
300 }
301 }
302
TEST(LocaleListTest,basicTests)303 TEST(LocaleListTest, basicTests) {
304 LocaleList emptyLocales;
305 EXPECT_EQ(0u, emptyLocales.size());
306
307 Locale english = createLocale("en");
308 const LocaleList& singletonLocales = createLocaleList("en");
309 EXPECT_EQ(1u, singletonLocales.size());
310 EXPECT_EQ(english, singletonLocales[0]);
311
312 Locale french = createLocale("fr");
313 const LocaleList& twoLocales = createLocaleList("en,fr");
314 EXPECT_EQ(2u, twoLocales.size());
315 EXPECT_EQ(english, twoLocales[0]);
316 EXPECT_EQ(french, twoLocales[1]);
317 }
318
TEST(LocaleListTest,unsupportedLocaleuageTests)319 TEST(LocaleListTest, unsupportedLocaleuageTests) {
320 const LocaleList& oneUnsupported = createLocaleList("abcd-example");
321 EXPECT_TRUE(oneUnsupported.empty());
322
323 const LocaleList& twoUnsupporteds = createLocaleList("abcd-example,abcd-example");
324 EXPECT_TRUE(twoUnsupporteds.empty());
325
326 Locale english = createLocale("en");
327 const LocaleList& firstUnsupported = createLocaleList("abcd-example,en");
328 EXPECT_EQ(1u, firstUnsupported.size());
329 EXPECT_EQ(english, firstUnsupported[0]);
330
331 const LocaleList& lastUnsupported = createLocaleList("en,abcd-example");
332 EXPECT_EQ(1u, lastUnsupported.size());
333 EXPECT_EQ(english, lastUnsupported[0]);
334 }
335
TEST(LocaleListTest,repeatedLocaleuageTests)336 TEST(LocaleListTest, repeatedLocaleuageTests) {
337 Locale english = createLocale("en");
338 Locale french = createLocale("fr");
339 Locale canadianFrench = createLocale("fr-CA");
340 Locale englishInLatn = createLocale("en-Latn");
341 ASSERT_TRUE(english == englishInLatn);
342
343 const LocaleList& locales = createLocaleList("en,en-Latn");
344 EXPECT_EQ(1u, locales.size());
345 EXPECT_EQ(english, locales[0]);
346
347 const LocaleList& fr = createLocaleList("fr,fr-FR,fr-Latn-FR");
348 EXPECT_EQ(1u, fr.size());
349 EXPECT_EQ(french, fr[0]);
350
351 // ICU appends FR to fr. The third language is dropped which is same as the first language.
352 const LocaleList& fr2 = createLocaleList("fr,fr-CA,fr-FR");
353 EXPECT_EQ(2u, fr2.size());
354 EXPECT_EQ(french, fr2[0]);
355 EXPECT_EQ(canadianFrench, fr2[1]);
356
357 // The order should be kept.
358 const LocaleList& locales2 = createLocaleList("en,fr,en-Latn");
359 EXPECT_EQ(2u, locales2.size());
360 EXPECT_EQ(english, locales2[0]);
361 EXPECT_EQ(french, locales2[1]);
362 }
363
TEST(LocaleListTest,identifierTest)364 TEST(LocaleListTest, identifierTest) {
365 EXPECT_EQ(createLocale("en-Latn-US"), createLocale("en-Latn-US"));
366 EXPECT_EQ(createLocale("zh-Hans-CN"), createLocale("zh-Hans-CN"));
367 EXPECT_EQ(createLocale("en-Zsye-US"), createLocale("en-Zsye-US"));
368
369 EXPECT_NE(createLocale("en-Latn-US"), createLocale("en-Latn-GB"));
370 EXPECT_NE(createLocale("en-Latn-US"), createLocale("en-Zsye-US"));
371 EXPECT_NE(createLocale("es-Latn-US"), createLocale("en-Latn-US"));
372 EXPECT_NE(createLocale("zh-Hant-HK"), createLocale("zh-Hant-TW"));
373 }
374
TEST(LocaleListTest,undEmojiTests)375 TEST(LocaleListTest, undEmojiTests) {
376 Locale emoji = createLocale("und-Zsye");
377 EXPECT_EQ(EmojiStyle::EMOJI, emoji.getEmojiStyle());
378
379 Locale und = createLocale("und");
380 EXPECT_EQ(EmojiStyle::EMPTY, und.getEmojiStyle());
381 EXPECT_FALSE(emoji == und);
382
383 Locale undExample = createLocale("und-example");
384 EXPECT_EQ(EmojiStyle::EMPTY, undExample.getEmojiStyle());
385 EXPECT_FALSE(emoji == undExample);
386 }
387
TEST(LocaleListTest,subtagEmojiTest)388 TEST(LocaleListTest, subtagEmojiTest) {
389 std::string subtagEmojiStrings[] = {
390 // Duplicate subtag case.
391 "und-Latn-u-em-emoji-u-em-text",
392
393 // Strings that contain language.
394 "und-u-em-emoji", "en-u-em-emoji",
395
396 // Strings that contain the script.
397 "und-Jpan-u-em-emoji", "en-Latn-u-em-emoji", "und-Zsym-u-em-emoji",
398 "und-Zsye-u-em-emoji", "en-Zsym-u-em-emoji", "en-Zsye-u-em-emoji",
399
400 // Strings that contain the country.
401 "und-US-u-em-emoji", "en-US-u-em-emoji", "es-419-u-em-emoji", "und-Latn-US-u-em-emoji",
402 "en-Zsym-US-u-em-emoji", "en-Zsye-US-u-em-emoji", "es-Zsye-419-u-em-emoji",
403
404 // Strings that contain the variant.
405 "de-Latn-DE-1901-u-em-emoji",
406 };
407
408 for (const auto& subtagEmojiString : subtagEmojiStrings) {
409 SCOPED_TRACE("Test for \"" + subtagEmojiString + "\"");
410 Locale subtagEmoji = createLocale(subtagEmojiString);
411 EXPECT_EQ(EmojiStyle::EMOJI, subtagEmoji.getEmojiStyle());
412 }
413 }
414
TEST(LocaleListTest,subtagTextTest)415 TEST(LocaleListTest, subtagTextTest) {
416 std::string subtagTextStrings[] = {
417 // Duplicate subtag case.
418 "und-Latn-u-em-text-u-em-emoji",
419
420 // Strings that contain language.
421 "und-u-em-text", "en-u-em-text",
422
423 // Strings that contain the script.
424 "und-Latn-u-em-text", "en-Jpan-u-em-text", "und-Zsym-u-em-text", "und-Zsye-u-em-text",
425 "en-Zsym-u-em-text", "en-Zsye-u-em-text",
426
427 // Strings that contain the country.
428 "und-US-u-em-text", "en-US-u-em-text", "es-419-u-em-text", "und-Latn-US-u-em-text",
429 "en-Zsym-US-u-em-text", "en-Zsye-US-u-em-text", "es-Zsye-419-u-em-text",
430
431 // Strings that contain the variant.
432 "de-Latn-DE-1901-u-em-text",
433 };
434
435 for (const auto& subtagTextString : subtagTextStrings) {
436 SCOPED_TRACE("Test for \"" + subtagTextString + "\"");
437 Locale subtagText = createLocale(subtagTextString);
438 EXPECT_EQ(EmojiStyle::TEXT, subtagText.getEmojiStyle());
439 }
440 }
441
442 // TODO: add more "und" language cases whose language and script are
443 // unexpectedly translated to en-Latn by ICU.
TEST(LocaleListTest,subtagDefaultTest)444 TEST(LocaleListTest, subtagDefaultTest) {
445 std::string subtagDefaultStrings[] = {
446 // Duplicate subtag case.
447 "en-Latn-u-em-default-u-em-emoji", "en-Latn-u-em-default-u-em-text",
448
449 // Strings that contain language.
450 "und-u-em-default", "en-u-em-default",
451
452 // Strings that contain the script.
453 "en-Latn-u-em-default", "en-Zsym-u-em-default", "en-Zsye-u-em-default",
454
455 // Strings that contain the country.
456 "en-US-u-em-default", "en-Latn-US-u-em-default", "es-Latn-419-u-em-default",
457 "en-Zsym-US-u-em-default", "en-Zsye-US-u-em-default", "es-Zsye-419-u-em-default",
458
459 // Strings that contain the variant.
460 "de-Latn-DE-1901-u-em-default",
461 };
462
463 for (const auto& subtagDefaultString : subtagDefaultStrings) {
464 SCOPED_TRACE("Test for \"" + subtagDefaultString + "\"");
465 Locale subtagDefault = createLocale(subtagDefaultString);
466 EXPECT_EQ(EmojiStyle::DEFAULT, subtagDefault.getEmojiStyle());
467 }
468 }
469
TEST(LocaleListTest,subtagEmptyTest)470 TEST(LocaleListTest, subtagEmptyTest) {
471 std::string subtagEmptyStrings[] = {
472 "und",
473 "jp",
474 "en-US",
475 "en-Latn",
476 "en-Latn-US",
477 "en-Latn-US-u-em",
478 "en-Latn-US-u-em-defaultemoji",
479 "de-Latn-DE-1901",
480 };
481
482 for (const auto& subtagEmptyString : subtagEmptyStrings) {
483 SCOPED_TRACE("Test for \"" + subtagEmptyString + "\"");
484 Locale subtagEmpty = createLocale(subtagEmptyString);
485 EXPECT_EQ(EmojiStyle::EMPTY, subtagEmpty.getEmojiStyle());
486 }
487 }
488
TEST(LocaleListTest,registerLocaleListTest)489 TEST(LocaleListTest, registerLocaleListTest) {
490 EXPECT_EQ(0UL, registerLocaleList(""));
491 EXPECT_NE(0UL, registerLocaleList("en"));
492 EXPECT_NE(0UL, registerLocaleList("jp"));
493 EXPECT_NE(0UL, registerLocaleList("en,zh-Hans"));
494
495 EXPECT_EQ(registerLocaleList("en"), registerLocaleList("en"));
496 EXPECT_NE(registerLocaleList("en"), registerLocaleList("jp"));
497 EXPECT_NE(registerLocaleList("de"), registerLocaleList("de-1901"));
498
499 EXPECT_EQ(registerLocaleList("en,zh-Hans"), registerLocaleList("en,zh-Hans"));
500 EXPECT_NE(registerLocaleList("en,zh-Hans"), registerLocaleList("zh-Hans,en"));
501 EXPECT_NE(registerLocaleList("en,zh-Hans"), registerLocaleList("jp"));
502 EXPECT_NE(registerLocaleList("en,zh-Hans"), registerLocaleList("en"));
503 EXPECT_NE(registerLocaleList("en,zh-Hans"), registerLocaleList("en,zh-Hant"));
504 EXPECT_NE(registerLocaleList("de,de-1901"), registerLocaleList("de-1901,de"));
505 }
506
507 // The test font has following glyphs.
508 // U+82A6
509 // U+82A6 U+FE00 (VS1)
510 // U+82A6 U+E0100 (VS17)
511 // U+82A6 U+E0101 (VS18)
512 // U+82A6 U+E0102 (VS19)
513 // U+845B
514 // U+845B U+FE00 (VS2)
515 // U+845B U+E0101 (VS18)
516 // U+845B U+E0102 (VS19)
517 // U+845B U+E0103 (VS20)
518 // U+537F
519 // U+717D U+FE02 (VS3)
520 // U+717D U+E0102 (VS19)
521 // U+717D U+E0103 (VS20)
522 const char kVsTestFont[] = "VariationSelectorTest-Regular.ttf";
523
524 class FontFamilyTest : public testing::Test {
525 public:
SetUp()526 virtual void SetUp() override {
527 if (access(getTestFontPath(kVsTestFont).c_str(), R_OK) != 0) {
528 FAIL() << "Unable to read " << kVsTestFont << ". "
529 << "Please prepare the test data directory. "
530 << "For more details, please see how_to_run.txt.";
531 }
532 }
533 };
534
535 // Asserts that the font family has glyphs for and only for specified codepoint
536 // and variationSelector pairs.
expectVSGlyphs(FontFamily * family,uint32_t codepoint,const std::set<uint32_t> & vs)537 void expectVSGlyphs(FontFamily* family, uint32_t codepoint, const std::set<uint32_t>& vs) {
538 for (uint32_t i = 0xFE00; i <= 0xE01EF; ++i) {
539 // Move to variation selectors supplements after variation selectors.
540 if (i == 0xFF00) {
541 i = 0xE0100;
542 }
543 if (vs.find(i) == vs.end()) {
544 EXPECT_FALSE(family->hasGlyph(codepoint, i))
545 << "Glyph for U+" << std::hex << codepoint << " U+" << i;
546 } else {
547 EXPECT_TRUE(family->hasGlyph(codepoint, i))
548 << "Glyph for U+" << std::hex << codepoint << " U+" << i;
549 }
550 }
551 }
552
expectVSGlyphsForVsTestFont(FontFamily * family)553 void expectVSGlyphsForVsTestFont(FontFamily* family) {
554 const uint32_t kVS1 = 0xFE00;
555 const uint32_t kVS2 = 0xFE01;
556 const uint32_t kVS3 = 0xFE02;
557 const uint32_t kVS17 = 0xE0100;
558 const uint32_t kVS18 = 0xE0101;
559 const uint32_t kVS19 = 0xE0102;
560 const uint32_t kVS20 = 0xE0103;
561
562 const uint32_t kSupportedChar1 = 0x82A6;
563 EXPECT_TRUE(family->getCoverage().get(kSupportedChar1));
564 expectVSGlyphs(family, kSupportedChar1, std::set<uint32_t>({kVS1, kVS17, kVS18, kVS19}));
565
566 const uint32_t kSupportedChar2 = 0x845B;
567 EXPECT_TRUE(family->getCoverage().get(kSupportedChar2));
568 expectVSGlyphs(family, kSupportedChar2, std::set<uint32_t>({kVS2, kVS18, kVS19, kVS20}));
569
570 const uint32_t kNoVsSupportedChar = 0x537F;
571 EXPECT_TRUE(family->getCoverage().get(kNoVsSupportedChar));
572 expectVSGlyphs(family, kNoVsSupportedChar, std::set<uint32_t>());
573
574 const uint32_t kVsOnlySupportedChar = 0x717D;
575 EXPECT_FALSE(family->getCoverage().get(kVsOnlySupportedChar));
576 expectVSGlyphs(family, kVsOnlySupportedChar, std::set<uint32_t>({kVS3, kVS19, kVS20}));
577
578 const uint32_t kNotSupportedChar = 0x845C;
579 EXPECT_FALSE(family->getCoverage().get(kNotSupportedChar));
580 expectVSGlyphs(family, kNotSupportedChar, std::set<uint32_t>());
581 }
582
TEST_F(FontFamilyTest,hasVariationSelectorTest)583 TEST_F(FontFamilyTest, hasVariationSelectorTest) {
584 std::shared_ptr<FontFamily> family = buildFontFamily(kVsTestFont);
585 expectVSGlyphsForVsTestFont(family.get());
586 }
587
TEST_F(FontFamilyTest,hasVSTableTest)588 TEST_F(FontFamilyTest, hasVSTableTest) {
589 struct TestCase {
590 const std::string fontPath;
591 bool hasVSTable;
592 } testCases[] = {
593 {"Ja.ttf", true}, {"ZhHant.ttf", true}, {"ZhHans.ttf", true},
594 {"Italic.ttf", false}, {"Bold.ttf", false}, {"BoldItalic.ttf", false},
595 };
596
597 for (const auto& testCase : testCases) {
598 SCOPED_TRACE(testCase.hasVSTable ? "Font " + testCase.fontPath +
599 " should have a variation sequence table."
600 : "Font " + testCase.fontPath +
601 " shouldn't have a variation sequence table.");
602
603 std::shared_ptr<FontFamily> family = buildFontFamily(testCase.fontPath);
604 EXPECT_EQ(testCase.hasVSTable, family->hasVSTable());
605 }
606 }
607
TEST_F(FontFamilyTest,createFamilyWithVariationTest)608 TEST_F(FontFamilyTest, createFamilyWithVariationTest) {
609 // This font has 'wdth' and 'wght' axes.
610 const char kMultiAxisFont[] = "MultiAxis.ttf";
611 const char kNoAxisFont[] = "Regular.ttf";
612
613 std::shared_ptr<FontFamily> multiAxisFamily = buildFontFamily(kMultiAxisFont);
614 std::shared_ptr<FontFamily> noAxisFamily = buildFontFamily(kNoAxisFont);
615
616 {
617 // Do not ceate new instance if none of variations are specified.
618 EXPECT_EQ(nullptr,
619 multiAxisFamily->createFamilyWithVariation(std::vector<FontVariation>()));
620 EXPECT_EQ(nullptr, noAxisFamily->createFamilyWithVariation(std::vector<FontVariation>()));
621 }
622 {
623 // New instance should be used for supported variation.
624 std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f}};
625 std::shared_ptr<FontFamily> newFamily(
626 multiAxisFamily->createFamilyWithVariation(variations));
627 EXPECT_NE(nullptr, newFamily.get());
628 EXPECT_NE(multiAxisFamily.get(), newFamily.get());
629 EXPECT_EQ(nullptr, noAxisFamily->createFamilyWithVariation(variations));
630 }
631 {
632 // New instance should be used for supported variation. (multiple variations case)
633 std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f},
634 {MinikinFont::MakeTag('w', 'g', 'h', 't'), 1.0f}};
635 std::shared_ptr<FontFamily> newFamily(
636 multiAxisFamily->createFamilyWithVariation(variations));
637 EXPECT_NE(nullptr, newFamily.get());
638 EXPECT_NE(multiAxisFamily.get(), newFamily.get());
639 EXPECT_EQ(nullptr, noAxisFamily->createFamilyWithVariation(variations));
640 }
641 {
642 // Do not ceate new instance if none of variations are supported.
643 std::vector<FontVariation> variations = {{MinikinFont::MakeTag('Z', 'Z', 'Z', 'Z'), 1.0f}};
644 EXPECT_EQ(nullptr, multiAxisFamily->createFamilyWithVariation(variations));
645 EXPECT_EQ(nullptr, noAxisFamily->createFamilyWithVariation(variations));
646 }
647 {
648 // At least one axis is supported, should create new instance.
649 std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f},
650 {MinikinFont::MakeTag('Z', 'Z', 'Z', 'Z'), 1.0f}};
651 std::shared_ptr<FontFamily> newFamily(
652 multiAxisFamily->createFamilyWithVariation(variations));
653 EXPECT_NE(nullptr, newFamily.get());
654 EXPECT_NE(multiAxisFamily.get(), newFamily.get());
655 EXPECT_EQ(nullptr, noAxisFamily->createFamilyWithVariation(variations));
656 }
657 }
658
TEST_F(FontFamilyTest,coverageTableSelectionTest)659 TEST_F(FontFamilyTest, coverageTableSelectionTest) {
660 // This font supports U+0061. The cmap subtable is format 4 and its platform ID is 0 and
661 // encoding ID is 1.
662 const char kUnicodeEncoding1Font[] = "UnicodeBMPOnly.ttf";
663
664 // This font supports U+0061. The cmap subtable is format 4 and its platform ID is 0 and
665 // encoding ID is 3.
666 const char kUnicodeEncoding3Font[] = "UnicodeBMPOnly2.ttf";
667
668 // This font has both cmap format 4 subtable which platform ID is 0 and encoding ID is 1
669 // and cmap format 14 subtable which platform ID is 0 and encoding ID is 10.
670 // U+0061 is listed in both subtable but U+1F926 is only listed in latter.
671 const char kUnicodeEncoding4Font[] = "UnicodeUCS4.ttf";
672
673 std::shared_ptr<FontFamily> unicodeEnc1Font = buildFontFamily(kUnicodeEncoding1Font);
674 std::shared_ptr<FontFamily> unicodeEnc3Font = buildFontFamily(kUnicodeEncoding3Font);
675 std::shared_ptr<FontFamily> unicodeEnc4Font = buildFontFamily(kUnicodeEncoding4Font);
676
677 EXPECT_TRUE(unicodeEnc1Font->hasGlyph(0x0061, 0));
678 EXPECT_TRUE(unicodeEnc3Font->hasGlyph(0x0061, 0));
679 EXPECT_TRUE(unicodeEnc4Font->hasGlyph(0x0061, 0));
680
681 EXPECT_TRUE(unicodeEnc4Font->hasGlyph(0x1F926, 0));
682 }
683
slantToString(FontStyle::Slant slant)684 const char* slantToString(FontStyle::Slant slant) {
685 if (slant == FontStyle::Slant::ITALIC) {
686 return "ITALIC";
687 } else {
688 return "UPRIGHT";
689 }
690 }
691
fontStyleToString(const FontStyle & style)692 std::string fontStyleToString(const FontStyle& style) {
693 char buf[64] = {};
694 snprintf(buf, sizeof(buf), "FontStyle(weight=%d, slant=%s)", style.weight(),
695 slantToString(style.slant()));
696 return buf;
697 }
698
TEST_F(FontFamilyTest,closestMatch)699 TEST_F(FontFamilyTest, closestMatch) {
700 constexpr char kTestFont[] = "Ascii.ttf";
701
702 constexpr FontStyle::Weight THIN = FontStyle::Weight::THIN;
703 constexpr FontStyle::Weight LIGHT = FontStyle::Weight::LIGHT;
704 constexpr FontStyle::Weight NORMAL = FontStyle::Weight::NORMAL;
705 constexpr FontStyle::Weight MEDIUM = FontStyle::Weight::MEDIUM;
706 constexpr FontStyle::Weight BOLD = FontStyle::Weight::BOLD;
707 constexpr FontStyle::Weight BLACK = FontStyle::Weight::BLACK;
708
709 constexpr FontStyle::Slant UPRIGHT = FontStyle::Slant::UPRIGHT;
710 constexpr FontStyle::Slant ITALIC = FontStyle::Slant::ITALIC;
711
712 const std::vector<FontStyle> STANDARD_SET = {
713 FontStyle(NORMAL, UPRIGHT), // 0
714 FontStyle(BOLD, UPRIGHT), // 1
715 FontStyle(NORMAL, ITALIC), // 2
716 FontStyle(BOLD, ITALIC), // 3
717 };
718
719 const std::vector<FontStyle> FULL_SET = {
720 FontStyle(THIN, UPRIGHT), // 0
721 FontStyle(LIGHT, UPRIGHT), // 1
722 FontStyle(NORMAL, UPRIGHT), // 2
723 FontStyle(MEDIUM, UPRIGHT), // 3
724 FontStyle(BOLD, UPRIGHT), // 4
725 FontStyle(BLACK, UPRIGHT), // 5
726 FontStyle(THIN, ITALIC), // 6
727 FontStyle(LIGHT, ITALIC), // 7
728 FontStyle(NORMAL, ITALIC), // 8
729 FontStyle(MEDIUM, ITALIC), // 9
730 FontStyle(BOLD, ITALIC), // 10
731 FontStyle(BLACK, ITALIC), // 11
732 };
733 struct TestCase {
734 FontStyle wantedStyle;
735 std::vector<FontStyle> familyStyles;
736 size_t expectedIndex;
737 } testCases[] = {
738 {FontStyle(), {FontStyle()}, 0},
739
740 // Exact matches
741 {FontStyle(BOLD), {FontStyle(NORMAL), FontStyle(BOLD)}, 1},
742 {FontStyle(BOLD), {FontStyle(LIGHT), FontStyle(BOLD)}, 1},
743 {FontStyle(LIGHT), {FontStyle(NORMAL), FontStyle(LIGHT)}, 1},
744 {FontStyle(LIGHT), {FontStyle(BOLD), FontStyle(LIGHT)}, 1},
745 {FontStyle(NORMAL), {FontStyle(NORMAL), FontStyle(LIGHT)}, 0},
746 {FontStyle(NORMAL), {FontStyle(NORMAL), FontStyle(BOLD)}, 0},
747 {FontStyle(LIGHT), {FontStyle(LIGHT), FontStyle(NORMAL), FontStyle(BOLD)}, 0},
748 {FontStyle(NORMAL), {FontStyle(LIGHT), FontStyle(NORMAL), FontStyle(BOLD)}, 1},
749 {FontStyle(BOLD), {FontStyle(LIGHT), FontStyle(NORMAL), FontStyle(BOLD)}, 2},
750
751 {FontStyle(UPRIGHT), {FontStyle(UPRIGHT), FontStyle(ITALIC)}, 0},
752 {FontStyle(ITALIC), {FontStyle(UPRIGHT), FontStyle(ITALIC)}, 1},
753
754 {FontStyle(NORMAL, UPRIGHT), STANDARD_SET, 0},
755 {FontStyle(BOLD, UPRIGHT), STANDARD_SET, 1},
756 {FontStyle(NORMAL, ITALIC), STANDARD_SET, 2},
757 {FontStyle(BOLD, ITALIC), STANDARD_SET, 3},
758
759 {FontStyle(NORMAL, UPRIGHT), FULL_SET, 2},
760 {FontStyle(BOLD, UPRIGHT), FULL_SET, 4},
761 {FontStyle(NORMAL, ITALIC), FULL_SET, 8},
762 {FontStyle(BOLD, ITALIC), FULL_SET, 10},
763
764 // TODO: Add fallback expectations. (b/68814338)
765 };
766
767 for (const TestCase& testCase : testCases) {
768 std::vector<std::shared_ptr<MinikinFont>> dummyFonts;
769 std::vector<std::shared_ptr<Font>> fonts;
770 for (auto familyStyle : testCase.familyStyles) {
771 std::shared_ptr<MinikinFont> dummyFont(
772 new FreeTypeMinikinFontForTest(getTestFontPath(kTestFont)));
773 dummyFonts.push_back(dummyFont);
774 fonts.push_back(Font::Builder(dummyFont).setStyle(familyStyle).build());
775 }
776
777 FontFamily family(std::move(fonts));
778 FakedFont closest = family.getClosestMatch(testCase.wantedStyle);
779
780 size_t idx = dummyFonts.size();
781 for (size_t i = 0; i < dummyFonts.size(); i++) {
782 if (dummyFonts[i].get() == closest.font->typeface().get()) {
783 idx = i;
784 break;
785 }
786 }
787 ASSERT_NE(idx, dummyFonts.size()) << "The selected font is unknown.";
788 EXPECT_EQ(testCase.expectedIndex, idx)
789 << "Input Style: " << fontStyleToString(testCase.wantedStyle) << std::endl
790 << "Actual Families' Style: " << fontStyleToString(testCase.familyStyles[idx])
791 << std::endl
792 << "Expected Families' Style: "
793 << fontStyleToString(testCase.familyStyles[testCase.expectedIndex]) << std::endl;
794 }
795 }
796
TEST_F(FontFamilyTest,bufferTest)797 TEST_F(FontFamilyTest, bufferTest) {
798 {
799 // Font with variation selectors
800 std::shared_ptr<FontFamily> original = buildFontFamily(kVsTestFont);
801 std::vector<uint8_t> buffer =
802 writeToBuffer<FontFamily, writeFreeTypeMinikinFontForTest>(*original);
803 BufferReader reader(buffer.data());
804 std::shared_ptr<FontFamily> copied =
805 FontFamily::readFrom<readFreeTypeMinikinFontForTest>(&reader);
806 ASSERT_EQ(original->localeListId(), copied->localeListId());
807 ASSERT_EQ(original->variant(), copied->variant());
808 ASSERT_EQ(original->getNumFonts(), copied->getNumFonts());
809 ASSERT_EQ(original->supportedAxes(), copied->supportedAxes());
810 ASSERT_EQ(original->isColorEmojiFamily(), copied->isColorEmojiFamily());
811 ASSERT_EQ(original->isCustomFallback(), copied->isCustomFallback());
812 ASSERT_EQ(original->hasVSTable(), copied->hasVSTable());
813 expectVSGlyphsForVsTestFont(copied.get());
814 std::vector<uint8_t> newBuffer =
815 writeToBuffer<FontFamily, writeFreeTypeMinikinFontForTest>(*copied);
816 ASSERT_EQ(buffer, newBuffer);
817 }
818 {
819 // Font with axes
820 constexpr char kMultiAxisFont[] = "MultiAxis.ttf";
821 std::shared_ptr<FontFamily> original = buildFontFamily(kMultiAxisFont);
822 std::vector<uint8_t> buffer =
823 writeToBuffer<FontFamily, writeFreeTypeMinikinFontForTest>(*original);
824 BufferReader reader(buffer.data());
825 std::shared_ptr<FontFamily> copied =
826 FontFamily::readFrom<readFreeTypeMinikinFontForTest>(&reader);
827 ASSERT_EQ(original->supportedAxes(), copied->supportedAxes());
828 std::vector<uint8_t> newBuffer =
829 writeToBuffer<FontFamily, writeFreeTypeMinikinFontForTest>(*copied);
830 ASSERT_EQ(buffer, newBuffer);
831 }
832 }
833
834 } // namespace minikin
835