/*
* 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 "minikin/FontCollection.h"
#include <gtest/gtest.h>
#include "FontTestUtils.h"
#include "MinikinInternal.h"
namespace minikin {
// The test font has following glyphs.
// U+82A6
// U+82A6 U+FE00 (VS1)
// U+82A6 U+E0100 (VS17)
// U+82A6 U+E0101 (VS18)
// U+82A6 U+E0102 (VS19)
// U+845B
// U+845B U+FE01 (VS2)
// U+845B U+E0101 (VS18)
// U+845B U+E0102 (VS19)
// U+845B U+E0103 (VS20)
// U+537F
// U+717D U+FE02 (VS3)
// U+717D U+E0102 (VS19)
// U+717D U+E0103 (VS20)
const char kVsTestFont[] = "VariationSelectorTest-Regular.ttf";
void expectVSGlyphs(const FontCollection* fc, uint32_t codepoint, const std::set<uint32_t>& vsSet) {
for (uint32_t vs = 0xFE00; vs <= 0xE01EF; ++vs) {
// Move to variation selectors supplements after variation selectors.
if (vs == 0xFF00) {
vs = 0xE0100;
}
if (vsSet.find(vs) == vsSet.end()) {
EXPECT_FALSE(fc->hasVariationSelector(codepoint, vs))
<< "Glyph for U+" << std::hex << codepoint << " U+" << vs;
} else {
EXPECT_TRUE(fc->hasVariationSelector(codepoint, vs))
<< "Glyph for U+" << std::hex << codepoint << " U+" << vs;
}
}
}
TEST(FontCollectionTest, hasVariationSelectorTest) {
auto fc = buildFontCollection(kVsTestFont);
EXPECT_FALSE(fc->hasVariationSelector(0x82A6, 0));
expectVSGlyphs(fc.get(), 0x82A6,
std::set<uint32_t>({0xFE00, 0xFE0E, 0xE0100, 0xE0101, 0xE0102}));
EXPECT_FALSE(fc->hasVariationSelector(0x845B, 0));
expectVSGlyphs(fc.get(), 0x845B,
std::set<uint32_t>({0xFE01, 0xFE0E, 0xE0101, 0xE0102, 0xE0103}));
EXPECT_FALSE(fc->hasVariationSelector(0x537F, 0));
expectVSGlyphs(fc.get(), 0x537F, std::set<uint32_t>({0xFE0E}));
EXPECT_FALSE(fc->hasVariationSelector(0x717D, 0));
expectVSGlyphs(fc.get(), 0x717D, std::set<uint32_t>({0xFE02, 0xE0102, 0xE0103}));
}
const char kEmojiXmlFile[] = "emoji.xml";
TEST(FontCollectionTest, hasVariationSelectorTest_emoji) {
auto collection = buildFontCollectionFromXml(kEmojiXmlFile);
// Both text/color font have cmap format 14 subtable entry for VS15/VS16 respectively.
EXPECT_TRUE(collection->hasVariationSelector(0x2623, 0xFE0E));
EXPECT_TRUE(collection->hasVariationSelector(0x2623, 0xFE0F));
// The text font has cmap format 14 subtable entry for VS15 but the color font doesn't have for
// VS16
EXPECT_TRUE(collection->hasVariationSelector(0x2626, 0xFE0E));
EXPECT_FALSE(collection->hasVariationSelector(0x2626, 0xFE0F));
// The color font has cmap format 14 subtable entry for VS16 but the text font doesn't have for
// VS15.
EXPECT_TRUE(collection->hasVariationSelector(0x262A, 0xFE0E));
EXPECT_TRUE(collection->hasVariationSelector(0x262A, 0xFE0F));
// Neither text/color font have cmap format 14 subtable entry for VS15/VS16.
EXPECT_TRUE(collection->hasVariationSelector(0x262E, 0xFE0E));
EXPECT_FALSE(collection->hasVariationSelector(0x262E, 0xFE0F));
// Text font doesn't support U+1F3FD. Only the color emoji fonts has. So VS15 is not supported.
EXPECT_FALSE(collection->hasVariationSelector(0x1F3FD, 0xFE0E));
// Text font doesn't have U+262F U+FE0E or even its base code point U+262F.
EXPECT_FALSE(collection->hasVariationSelector(0x262F, 0xFE0E));
// None of the fonts support U+2229.
EXPECT_FALSE(collection->hasVariationSelector(0x2229, 0xFE0E));
EXPECT_FALSE(collection->hasVariationSelector(0x2229, 0xFE0F));
}
TEST(FontCollectionTest, newEmojiTest) {
auto collection = buildFontCollectionFromXml(kEmojiXmlFile);
// U+2695, U+2640, U+2642 are not in emoji catrgory in Unicode 9 but they are now in emoji
// category. Should return true even if U+FE0E was appended.
// These three emojis are only avalilable in TextEmoji.ttf but U+2695 is excluded here since it
// is used in other tests.
EXPECT_TRUE(collection->hasVariationSelector(0x2640, 0xFE0E));
EXPECT_FALSE(collection->hasVariationSelector(0x2640, 0xFE0F));
EXPECT_TRUE(collection->hasVariationSelector(0x2642, 0xFE0E));
EXPECT_FALSE(collection->hasVariationSelector(0x2642, 0xFE0F));
}
TEST(FontCollectionTest, createWithVariations) {
// This font has 'wdth' and 'wght' axes.
const char kMultiAxisFont[] = "MultiAxis.ttf";
const char kNoAxisFont[] = "Regular.ttf";
std::shared_ptr<FontCollection> multiAxisFc = buildFontCollection(kMultiAxisFont);
std::shared_ptr<FontCollection> noAxisFc = buildFontCollection(kNoAxisFont);
{
// Do not ceate new instance if none of variations are specified.
EXPECT_EQ(nullptr,
multiAxisFc->createCollectionWithVariation(std::vector<FontVariation>()));
EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(std::vector<FontVariation>()));
}
{
// New instance should be used for supported variation.
std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f}};
std::shared_ptr<FontCollection> newFc(
multiAxisFc->createCollectionWithVariation(variations));
EXPECT_NE(nullptr, newFc.get());
EXPECT_NE(multiAxisFc.get(), newFc.get());
EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations));
}
{
// New instance should be used for supported variation (multiple variations case).
std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f},
{MinikinFont::MakeTag('w', 'g', 'h', 't'), 1.0f}};
std::shared_ptr<FontCollection> newFc(
multiAxisFc->createCollectionWithVariation(variations));
EXPECT_NE(nullptr, newFc.get());
EXPECT_NE(multiAxisFc.get(), newFc.get());
EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations));
}
{
// Do not ceate new instance if none of variations are supported.
std::vector<FontVariation> variations = {{MinikinFont::MakeTag('Z', 'Z', 'Z', 'Z'), 1.0f}};
EXPECT_EQ(nullptr, multiAxisFc->createCollectionWithVariation(variations));
EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations));
}
{
// At least one axis is supported, should create new instance.
std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f},
{MinikinFont::MakeTag('Z', 'Z', 'Z', 'Z'), 1.0f}};
std::shared_ptr<FontCollection> newFc(
multiAxisFc->createCollectionWithVariation(variations));
EXPECT_NE(nullptr, newFc.get());
EXPECT_NE(multiAxisFc.get(), newFc.get());
EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations));
}
}
} // namespace minikin