flutter_flutter/tests/FontCollectionItemizeTest.cpp
Seigo Nonaka 369d2d44cb Select emoji font based on variation selectors.
If U+FE0E is appended to the emoji code point, the glyph should have a
text presentation.
On the other hand, if U+FE0F is appended to the emoji code point, the
glyph should have an emoji presentation.

Bug: 11256006
Change-Id: I5187d44500b13a138e7ffbcf2c72e2da06374c8c
2015-12-07 16:49:16 -08:00

905 lines
38 KiB
C++

/*
* Copyright (C) 2015 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.
*/
#include <gtest/gtest.h>
#include "FontTestUtils.h"
#include "MinikinFontForTest.h"
#include "UnicodeUtils.h"
using android::FontCollection;
using android::FontFamily;
using android::FontLanguage;
using android::FontStyle;
#define kTestFontDir "/data/minikin/test/data/"
const char kItemizeFontXml[] = kTestFontDir "itemize.xml";
const char kEmojiFont[] = kTestFontDir "Emoji.ttf";
const char kJAFont[] = kTestFontDir "Ja.ttf";
const char kKOFont[] = kTestFontDir "Ko.ttf";
const char kLatinBoldFont[] = kTestFontDir "Bold.ttf";
const char kLatinBoldItalicFont[] = kTestFontDir "BoldItalic.ttf";
const char kLatinFont[] = kTestFontDir "Regular.ttf";
const char kLatinItalicFont[] = kTestFontDir "Italic.ttf";
const char kZH_HansFont[] = kTestFontDir "ZhHans.ttf";
const char kZH_HantFont[] = kTestFontDir "ZhHant.ttf";
const char kEmojiXmlFile[] = kTestFontDir "emoji.xml";
const char kNoGlyphFont[] = kTestFontDir "NoGlyphFont.ttf";
const char kColorEmojiFont[] = kTestFontDir "ColorEmojiFont.ttf";
const char kTextEmojiFont[] = kTestFontDir "TextEmojiFont.ttf";
const char kMixedEmojiFont[] = kTestFontDir "ColorTextMixedEmojiFont.ttf";
// Utility function for calling itemize function.
void itemize(FontCollection* collection, const char* str, FontStyle style,
std::vector<FontCollection::Run>* result) {
const size_t BUF_SIZE = 256;
uint16_t buf[BUF_SIZE];
size_t len;
result->clear();
ParseUnicode(buf, BUF_SIZE, str, &len, NULL);
collection->itemize(buf, len, style, result);
}
// Utility function to obtain font path associated with run.
const std::string& getFontPath(const FontCollection::Run& run) {
EXPECT_NE(nullptr, run.fakedFont.font);
return ((MinikinFontForTest*)run.fakedFont.font)->fontPath();
}
TEST(FontCollectionItemizeTest, itemize_latin) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kItemizeFontXml);
std::vector<FontCollection::Run> runs;
const FontStyle kRegularStyle = FontStyle();
const FontStyle kItalicStyle = FontStyle(4, true);
const FontStyle kBoldStyle = FontStyle(7, false);
const FontStyle kBoldItalicStyle = FontStyle(7, true);
itemize(collection.get(), "'a' 'b' 'c' 'd' 'e'", kRegularStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kLatinFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
itemize(collection.get(), "'a' 'b' 'c' 'd' 'e'", kItalicStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kLatinItalicFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
itemize(collection.get(), "'a' 'b' 'c' 'd' 'e'", kBoldStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kLatinBoldFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
itemize(collection.get(), "'a' 'b' 'c' 'd' 'e'", kBoldItalicStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kLatinBoldItalicFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
// Continue if the specific characters (e.g. hyphen, comma, etc.) is
// followed.
itemize(collection.get(), "'a' ',' '-' 'd' '!'", kRegularStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kLatinFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
itemize(collection.get(), "'a' ',' '-' 'd' '!'", kRegularStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kLatinFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
// U+0301(COMBINING ACUTE ACCENT) must be in the same run with preceding
// chars if the font supports it.
itemize(collection.get(), "'a' U+0301", kRegularStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kLatinFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
}
TEST(FontCollectionItemizeTest, itemize_emoji) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kItemizeFontXml);
std::vector<FontCollection::Run> runs;
itemize(collection.get(), "U+1F469 U+1F467", FontStyle(), &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(4, runs[0].end);
EXPECT_EQ(kEmojiFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
// U+20E3(COMBINING ENCLOSING KEYCAP) must be in the same run with preceding
// character if the font supports.
itemize(collection.get(), "'0' U+20E3", FontStyle(), &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kEmojiFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
itemize(collection.get(), "U+1F470 U+20E3", FontStyle(), &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(3, runs[0].end);
EXPECT_EQ(kEmojiFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
itemize(collection.get(), "U+242EE U+1F470 U+20E3", FontStyle(), &runs);
ASSERT_EQ(2U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
EXPECT_EQ(2, runs[1].start);
EXPECT_EQ(5, runs[1].end);
EXPECT_EQ(kEmojiFont, getFontPath(runs[1]));
EXPECT_FALSE(runs[1].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[1].fakedFont.fakery.isFakeItalic());
// Currently there is no fonts which has a glyph for 'a' + U+20E3, so they
// are splitted into two.
itemize(collection.get(), "'a' U+20E3", FontStyle(), &runs);
ASSERT_EQ(2U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kLatinFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
EXPECT_EQ(1, runs[1].start);
EXPECT_EQ(2, runs[1].end);
EXPECT_EQ(kEmojiFont, getFontPath(runs[1]));
EXPECT_FALSE(runs[1].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[1].fakedFont.fakery.isFakeItalic());
}
TEST(FontCollectionItemizeTest, itemize_non_latin) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kItemizeFontXml);
std::vector<FontCollection::Run> runs;
FontStyle kJAStyle = FontStyle(FontLanguage("ja_JP", 5));
FontStyle kUSStyle = FontStyle(FontLanguage("en_US", 5));
FontStyle kZH_HansStyle = FontStyle(FontLanguage("zh_Hans", 7));
// All Japanese Hiragana characters.
itemize(collection.get(), "U+3042 U+3044 U+3046 U+3048 U+304A", kUSStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
// All Korean Hangul characters.
itemize(collection.get(), "U+B300 U+D55C U+BBFC U+AD6D", kUSStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(4, runs[0].end);
EXPECT_EQ(kKOFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
// All Han characters ja, zh-Hans font having.
// Japanese font should be selected if the specified language is Japanese.
itemize(collection.get(), "U+81ED U+82B1 U+5FCD", kJAStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(3, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
// Simplified Chinese font should be selected if the specified language is Simplified
// Chinese.
itemize(collection.get(), "U+81ED U+82B1 U+5FCD", kZH_HansStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(3, runs[0].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
// Fallbacks to other fonts if there is no glyph in the specified language's
// font. There is no character U+4F60 in Japanese.
itemize(collection.get(), "U+81ED U+4F60 U+5FCD", kJAStyle, &runs);
ASSERT_EQ(3U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
EXPECT_EQ(1, runs[1].start);
EXPECT_EQ(2, runs[1].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[1]));
EXPECT_FALSE(runs[1].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[1].fakedFont.fakery.isFakeItalic());
EXPECT_EQ(2, runs[2].start);
EXPECT_EQ(3, runs[2].end);
EXPECT_EQ(kJAFont, getFontPath(runs[2]));
EXPECT_FALSE(runs[2].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[2].fakedFont.fakery.isFakeItalic());
// Tone mark.
itemize(collection.get(), "U+4444 U+302D", FontStyle(), &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
}
TEST(FontCollectionItemizeTest, itemize_mixed) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kItemizeFontXml);
std::vector<FontCollection::Run> runs;
FontStyle kUSStyle = FontStyle(FontLanguage("en_US", 5));
itemize(collection.get(), "'a' U+4F60 'b' U+4F60 'c'", kUSStyle, &runs);
ASSERT_EQ(5U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kLatinFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
EXPECT_EQ(1, runs[1].start);
EXPECT_EQ(2, runs[1].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[1]));
EXPECT_FALSE(runs[1].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[1].fakedFont.fakery.isFakeItalic());
EXPECT_EQ(2, runs[2].start);
EXPECT_EQ(3, runs[2].end);
EXPECT_EQ(kLatinFont, getFontPath(runs[2]));
EXPECT_FALSE(runs[2].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[2].fakedFont.fakery.isFakeItalic());
EXPECT_EQ(3, runs[3].start);
EXPECT_EQ(4, runs[3].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[3]));
EXPECT_FALSE(runs[3].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[3].fakedFont.fakery.isFakeItalic());
EXPECT_EQ(4, runs[4].start);
EXPECT_EQ(5, runs[4].end);
EXPECT_EQ(kLatinFont, getFontPath(runs[4]));
EXPECT_FALSE(runs[4].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[4].fakedFont.fakery.isFakeItalic());
}
TEST(FontCollectionItemizeTest, itemize_variationSelector) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kItemizeFontXml);
std::vector<FontCollection::Run> runs;
// A glyph for U+4FAE is provided by both Japanese font and Simplified
// Chinese font. Also a glyph for U+242EE is provided by both Japanese and
// Traditional Chinese font. To avoid effects of device default locale,
// explicitly specify the locale.
FontStyle kZH_HansStyle = FontStyle(FontLanguage("zh_Hans", 7));
FontStyle kZH_HantStyle = FontStyle(FontLanguage("zh_Hant", 7));
// U+4FAE is available in both zh_Hans and ja font, but U+4FAE,U+FE00 is
// only available in ja font.
itemize(collection.get(), "U+4FAE", kZH_HansStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[0]));
itemize(collection.get(), "U+4FAE U+FE00", kZH_HansStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
itemize(collection.get(), "U+4FAE U+4FAE U+FE00", kZH_HansStyle, &runs);
ASSERT_EQ(2U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[0]));
EXPECT_EQ(1, runs[1].start);
EXPECT_EQ(3, runs[1].end);
EXPECT_EQ(kJAFont, getFontPath(runs[1]));
itemize(collection.get(), "U+4FAE U+4FAE U+FE00 U+4FAE", kZH_HansStyle, &runs);
ASSERT_EQ(3U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[0]));
EXPECT_EQ(1, runs[1].start);
EXPECT_EQ(3, runs[1].end);
EXPECT_EQ(kJAFont, getFontPath(runs[1]));
EXPECT_EQ(3, runs[2].start);
EXPECT_EQ(4, runs[2].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[2]));
// Validation selector after validation selector.
itemize(collection.get(), "U+4FAE U+FE00 U+FE00", kZH_HansStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(3, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[1]));
// No font supports U+242EE U+FE0E.
itemize(collection.get(), "U+4FAE U+FE0E", kZH_HansStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[0]));
// Surrogate pairs handling.
// U+242EE is available in ja font and zh_Hant font.
// U+242EE U+FE00 is available only in ja font.
itemize(collection.get(), "U+242EE", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[0]));
itemize(collection.get(), "U+242EE U+FE00", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(3, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
itemize(collection.get(), "U+242EE U+242EE U+FE00", kZH_HantStyle, &runs);
ASSERT_EQ(2U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[0]));
EXPECT_EQ(2, runs[1].start);
EXPECT_EQ(5, runs[1].end);
EXPECT_EQ(kJAFont, getFontPath(runs[1]));
itemize(collection.get(), "U+242EE U+242EE U+FE00 U+242EE", kZH_HantStyle, &runs);
ASSERT_EQ(3U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[0]));
EXPECT_EQ(2, runs[1].start);
EXPECT_EQ(5, runs[1].end);
EXPECT_EQ(kJAFont, getFontPath(runs[1]));
EXPECT_EQ(5, runs[2].start);
EXPECT_EQ(7, runs[2].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[2]));
// Validation selector after validation selector.
itemize(collection.get(), "U+242EE U+FE00 U+FE00", kZH_HansStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(4, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
// No font supports U+242EE U+FE0E
itemize(collection.get(), "U+242EE U+FE0E", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(3, runs[0].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[0]));
// Isolated variation selector supplement.
itemize(collection.get(), "U+FE00", FontStyle(), &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_TRUE(runs[0].fakedFont.font == nullptr || kLatinFont == getFontPath(runs[0]));
itemize(collection.get(), "U+FE00", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_TRUE(runs[0].fakedFont.font == nullptr || kLatinFont == getFontPath(runs[0]));
// First font family (Regular.ttf) supports U+203C but doesn't support U+203C U+FE0F.
// Emoji.ttf font supports supports U+203C U+FE0F. Emoji.ttf should be selected.
itemize(collection.get(), "U+203C U+FE0F", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kEmojiFont, getFontPath(runs[0]));
// First font family (Regular.ttf) supports U+203C U+FE0E.
itemize(collection.get(), "U+203C U+FE0E", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kLatinFont, getFontPath(runs[0]));
}
TEST(FontCollectionItemizeTest, itemize_variationSelectorSupplement) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kItemizeFontXml);
std::vector<FontCollection::Run> runs;
// A glyph for U+845B is provided by both Japanese font and Simplified
// Chinese font. Also a glyph for U+242EE is provided by both Japanese and
// Traditional Chinese font. To avoid effects of device default locale,
// explicitly specify the locale.
FontStyle kZH_HansStyle = FontStyle(FontLanguage("zh_Hans", 7));
FontStyle kZH_HantStyle = FontStyle(FontLanguage("zh_Hant", 7));
// U+845B is available in both zh_Hans and ja font, but U+845B,U+E0100 is
// only available in ja font.
itemize(collection.get(), "U+845B", kZH_HansStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[0]));
itemize(collection.get(), "U+845B U+E0100", kZH_HansStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(3, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
itemize(collection.get(), "U+845B U+845B U+E0100", kZH_HansStyle, &runs);
ASSERT_EQ(2U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[0]));
EXPECT_EQ(1, runs[1].start);
EXPECT_EQ(4, runs[1].end);
EXPECT_EQ(kJAFont, getFontPath(runs[1]));
itemize(collection.get(), "U+845B U+845B U+E0100 U+845B", kZH_HansStyle, &runs);
ASSERT_EQ(3U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[0]));
EXPECT_EQ(1, runs[1].start);
EXPECT_EQ(4, runs[1].end);
EXPECT_EQ(kJAFont, getFontPath(runs[1]));
EXPECT_EQ(4, runs[2].start);
EXPECT_EQ(5, runs[2].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[2]));
// Validation selector after validation selector.
itemize(collection.get(), "U+845B U+E0100 U+E0100", kZH_HansStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
// No font supports U+845B U+E01E0.
itemize(collection.get(), "U+845B U+E01E0", kZH_HansStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(3, runs[0].end);
EXPECT_EQ(kZH_HansFont, getFontPath(runs[0]));
// Isolated variation selector supplement
// Surrogate pairs handling.
// U+242EE is available in ja font and zh_Hant font.
// U+242EE U+E0100 is available only in ja font.
itemize(collection.get(), "U+242EE", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[0]));
itemize(collection.get(), "U+242EE U+E0101", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(4, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
itemize(collection.get(), "U+242EE U+242EE U+E0101", kZH_HantStyle, &runs);
ASSERT_EQ(2U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[0]));
EXPECT_EQ(2, runs[1].start);
EXPECT_EQ(6, runs[1].end);
EXPECT_EQ(kJAFont, getFontPath(runs[1]));
itemize(collection.get(), "U+242EE U+242EE U+E0101 U+242EE", kZH_HantStyle, &runs);
ASSERT_EQ(3U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[0]));
EXPECT_EQ(2, runs[1].start);
EXPECT_EQ(6, runs[1].end);
EXPECT_EQ(kJAFont, getFontPath(runs[1]));
EXPECT_EQ(6, runs[2].start);
EXPECT_EQ(8, runs[2].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[2]));
// Validation selector after validation selector.
itemize(collection.get(), "U+242EE U+E0100 U+E0100", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(6, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
// No font supports U+242EE U+E01E0.
itemize(collection.get(), "U+242EE U+E01E0", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(4, runs[0].end);
EXPECT_EQ(kZH_HantFont, getFontPath(runs[0]));
// Isolated variation selector supplement.
itemize(collection.get(), "U+E0100", FontStyle(), &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_TRUE(runs[0].fakedFont.font == nullptr || kLatinFont == getFontPath(runs[0]));
itemize(collection.get(), "U+E0100", kZH_HantStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_TRUE(runs[0].fakedFont.font == nullptr || kLatinFont == getFontPath(runs[0]));
}
TEST(FontCollectionItemizeTest, itemize_no_crash) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kItemizeFontXml);
std::vector<FontCollection::Run> runs;
// Broken Surrogate pairs. Check only not crashing.
itemize(collection.get(), "'a' U+D83D 'a'", FontStyle(), &runs);
itemize(collection.get(), "'a' U+DC69 'a'", FontStyle(), &runs);
itemize(collection.get(), "'a' U+D83D U+D83D 'a'", FontStyle(), &runs);
itemize(collection.get(), "'a' U+DC69 U+DC69 'a'", FontStyle(), &runs);
// Isolated variation selector. Check only not crashing.
itemize(collection.get(), "U+FE00 U+FE00", FontStyle(), &runs);
itemize(collection.get(), "U+E0100 U+E0100", FontStyle(), &runs);
itemize(collection.get(), "U+FE00 U+E0100", FontStyle(), &runs);
itemize(collection.get(), "U+E0100 U+FE00", FontStyle(), &runs);
// Tone mark only. Check only not crashing.
itemize(collection.get(), "U+302D", FontStyle(), &runs);
itemize(collection.get(), "U+302D U+302D", FontStyle(), &runs);
// Tone mark and variation selector mixed. Check only not crashing.
itemize(collection.get(), "U+FE00 U+302D U+E0100", FontStyle(), &runs);
}
TEST(FontCollectionItemizeTest, itemize_fakery) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kItemizeFontXml);
std::vector<FontCollection::Run> runs;
FontStyle kJABoldStyle = FontStyle(FontLanguage("ja_JP", 5), 0, 7, false);
FontStyle kJAItalicStyle = FontStyle(FontLanguage("ja_JP", 5), 0, 5, true);
FontStyle kJABoldItalicStyle = FontStyle(FontLanguage("ja_JP", 5), 0, 7, true);
// Currently there is no italic or bold font for Japanese. FontFakery has
// the differences between desired and actual font style.
// All Japanese Hiragana characters.
itemize(collection.get(), "U+3042 U+3044 U+3046 U+3048 U+304A", kJABoldStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
EXPECT_TRUE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeItalic());
// All Japanese Hiragana characters.
itemize(collection.get(), "U+3042 U+3044 U+3046 U+3048 U+304A", kJAItalicStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
EXPECT_FALSE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_TRUE(runs[0].fakedFont.fakery.isFakeItalic());
// All Japanese Hiragana characters.
itemize(collection.get(), "U+3042 U+3044 U+3046 U+3048 U+304A", kJABoldItalicStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(5, runs[0].end);
EXPECT_EQ(kJAFont, getFontPath(runs[0]));
EXPECT_TRUE(runs[0].fakedFont.fakery.isFakeBold());
EXPECT_TRUE(runs[0].fakedFont.fakery.isFakeItalic());
}
TEST(FontCollectionItemizeTest, itemize_vs_sequence_but_no_base_char) {
// kVSTestFont supports U+717D U+FE02 but doesn't support U+717D.
// kVSTestFont should be selected for U+717D U+FE02 even if it does not support the base code
// point.
const std::string kVSTestFont = kTestFontDir "VarioationSelectorTest-Regular.ttf";
std::vector<android::FontFamily*> families;
FontFamily* family1 = new FontFamily(FontLanguage(), android::VARIANT_DEFAULT);
family1->addFont(new MinikinFontForTest(kLatinFont));
families.push_back(family1);
FontFamily* family2 = new FontFamily(FontLanguage(), android::VARIANT_DEFAULT);
family2->addFont(new MinikinFontForTest(kVSTestFont));
families.push_back(family2);
FontCollection collection(families);
std::vector<FontCollection::Run> runs;
itemize(&collection, "U+717D U+FE02", FontStyle(), &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kVSTestFont, getFontPath(runs[0]));
family1->Unref();
family2->Unref();
}
TEST(FontCollectionItemizeTest, itemize_emojiSelection) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kEmojiXmlFile);
std::vector<FontCollection::Run> runs;
const FontStyle kDefaultFontStyle;
// U+00A9 is a text default emoji which is only available in TextEmojiFont.ttf.
// TextEmojiFont.ttf should be selected.
itemize(collection.get(), "U+00A9", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
// U+00AE is a text default emoji which is only available in ColorEmojiFont.ttf.
// ColorEmojiFont.ttf should be selected.
itemize(collection.get(), "U+00AE", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
// U+203C is a text default emoji which is available in both TextEmojiFont.ttf and
// ColorEmojiFont.ttf. TextEmojiFont.ttf should be selected.
itemize(collection.get(), "U+203C", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
// TODO: use text font for text default emoji.
// EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
// U+2049 is a text default emoji which is not available in either TextEmojiFont.ttf or
// ColorEmojiFont.ttf. No font should be selected.
itemize(collection.get(), "U+2049", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
// U+231A is a emoji default emoji which is available only in TextEmojiFont.ttf.
// TextEmojiFont.ttf should be selected.
itemize(collection.get(), "U+231A", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
// U+231B is a emoji default emoji which is available only in ColorEmojiFont.ttf.
// ColorEmojiFont.ttf should be selected.
itemize(collection.get(), "U+231B", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
// U+23E9 is a emoji default emoji which is available in both TextEmojiFont.ttf and
// ColorEmojiFont.ttf. ColorEmojiFont should be selected.
itemize(collection.get(), "U+23E9", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
// U+23EA is a emoji default emoji which is not avaialble in either TextEmojiFont.ttf and
// ColorEmojiFont.ttf. No font should b e selected.
itemize(collection.get(), "U+23EA", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(1, runs[0].end);
EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
}
TEST(FontCollectionItemizeTest, itemize_emojiSelection_withFE0E) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kEmojiXmlFile);
std::vector<FontCollection::Run> runs;
const FontStyle kDefaultFontStyle;
// U+00A9 is a text default emoji which is only available in TextEmojiFont.ttf.
// TextEmojiFont.ttf should be selected.
itemize(collection.get(), "U+00A9 U+FE0E", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
// U+00A9 is a text default emoji which is only available in ColorEmojiFont.ttf.
// ColorEmojiFont.ttf should be selected.
itemize(collection.get(), "U+00AE U+FE0E", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
// Text emoji is specified but it is not available. Use color emoji instead.
EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
// U+203C is a text default emoji which is available in both TextEmojiFont.ttf and
// ColorEmojiFont.ttf. TextEmojiFont.ttf should be selected.
itemize(collection.get(), "U+203C U+FE0E", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
// U+2049 is a text default emoji which is not available either TextEmojiFont.ttf or
// ColorEmojiFont.ttf. No font should be selected.
itemize(collection.get(), "U+2049 U+FE0E", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
// U+231A is a emoji default emoji which is available only in TextEmojifFont.
// TextEmojiFont.ttf sohuld be selected.
itemize(collection.get(), "U+231A U+FE0E", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
// U+231B is a emoji default emoji which is available only in ColorEmojiFont.ttf.
// ColorEmojiFont.ttf should be selected.
itemize(collection.get(), "U+231B U+FE0E", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
// Text emoji is specified but it is not available. Use color emoji instead.
EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
// U+23E9 is a emoji default emoji which is available in both TextEmojiFont.ttf and
// ColorEmojiFont.ttf. TextEmojiFont.ttf should be selected even if U+23E9 is emoji default
// emoji since U+FE0E is appended.
itemize(collection.get(), "U+23E9 U+FE0E", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
// U+23EA is a emoji default emoji but which is not available in either TextEmojiFont.ttf or
// ColorEmojiFont.ttf. No font should be selected.
itemize(collection.get(), "U+23EA U+FE0E", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
// U+26FA U+FE0E is specified but ColorTextMixedEmojiFont has a variation sequence U+26F9 U+FE0F
// in its cmap, so ColorTextMixedEmojiFont should be selected instaed of ColorEmojiFont.
itemize(collection.get(), "U+26FA U+FE0E", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kMixedEmojiFont, getFontPath(runs[0]));
}
TEST(FontCollectionItemizeTest, itemize_emojiSelection_withFE0F) {
std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kEmojiXmlFile);
std::vector<FontCollection::Run> runs;
const FontStyle kDefaultFontStyle;
// U+00A9 is a text default emoji which is available only in TextEmojiFont.ttf.
// TextEmojiFont.ttf shoudl be selected.
itemize(collection.get(), "U+00A9 U+FE0F", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
// Color emoji is specified but it is not available. Use text representaion instead.
EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
// U+00AE is a text default emoji which is available only in ColorEmojiFont.ttf.
// ColorEmojiFont.ttf should be selected.
itemize(collection.get(), "U+00AE U+FE0F", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
// U+203C is a text default emoji which is available in both TextEmojiFont.ttf and
// ColorEmojiFont.ttf. ColorEmojiFont.ttf should be selected even if U+203C is a text default
// emoji since U+FF0F is appended.
itemize(collection.get(), "U+203C U+FE0F", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
// U+2049 is a text default emoji which is not available in either TextEmojiFont.ttf or
// ColorEmojiFont.ttf. No font should be selected.
itemize(collection.get(), "U+2049 U+FE0F", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
// U+231A is a emoji default emoji which is available only in TextEmojiFont.ttf.
// TextEmojiFont.ttf should be selected.
itemize(collection.get(), "U+231A U+FE0F", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
// Color emoji is specified but it is not available. Use text representation instead.
EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
// U+231B is a emoji default emoji which is available only in ColorEmojiFont.ttf.
// ColorEmojiFont.ttf should be selected.
itemize(collection.get(), "U+231B U+FE0F", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
// U+23E9 is a emoji default emoji which is available in both TextEmojiFont.ttf and
// ColorEmojiFont.ttf. ColorEmojiFont.ttf should be selected.
itemize(collection.get(), "U+23E9 U+FE0F", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
// U+23EA is a emoji default emoji which is not available in either TextEmojiFont.ttf or
// ColorEmojiFont.ttf. No font should be selected.
itemize(collection.get(), "U+23EA U+FE0F", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
// U+26F9 U+FE0F is specified but ColorTextMixedEmojiFont has a variation sequence U+26F9 U+FE0F
// in its cmap, so ColorTextMixedEmojiFont should be selected instaed of ColorEmojiFont.
itemize(collection.get(), "U+26F9 U+FE0F", kDefaultFontStyle, &runs);
ASSERT_EQ(1U, runs.size());
EXPECT_EQ(0, runs[0].start);
EXPECT_EQ(2, runs[0].end);
EXPECT_EQ(kMixedEmojiFont, getFontPath(runs[0]));
}