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321 lines
13 KiB
321 lines
13 KiB
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "minikin/FontCollection.h"
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#include <gtest/gtest.h>
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#include "FontTestUtils.h"
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#include "FreeTypeMinikinFontForTest.h"
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#include "MinikinInternal.h"
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namespace minikin {
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// The test font has following glyphs.
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// U+82A6
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// U+82A6 U+FE00 (VS1)
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// U+82A6 U+E0100 (VS17)
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// U+82A6 U+E0101 (VS18)
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// U+82A6 U+E0102 (VS19)
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// U+845B
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// U+845B U+FE01 (VS2)
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// U+845B U+E0101 (VS18)
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// U+845B U+E0102 (VS19)
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// U+845B U+E0103 (VS20)
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// U+537F
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// U+717D U+FE02 (VS3)
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// U+717D U+E0102 (VS19)
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// U+717D U+E0103 (VS20)
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const char kVsTestFont[] = "VariationSelectorTest-Regular.ttf";
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void expectVSGlyphs(const FontCollection* fc, uint32_t codepoint, const std::set<uint32_t>& vsSet) {
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for (uint32_t vs = 0xFE00; vs <= 0xE01EF; ++vs) {
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// Move to variation selectors supplements after variation selectors.
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if (vs == 0xFF00) {
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vs = 0xE0100;
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}
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if (vsSet.find(vs) == vsSet.end()) {
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EXPECT_FALSE(fc->hasVariationSelector(codepoint, vs))
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<< "Glyph for U+" << std::hex << codepoint << " U+" << vs;
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} else {
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EXPECT_TRUE(fc->hasVariationSelector(codepoint, vs))
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<< "Glyph for U+" << std::hex << codepoint << " U+" << vs;
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}
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}
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}
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void expectVSGlyphsForVsTestFont(const FontCollection* fc) {
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EXPECT_FALSE(fc->hasVariationSelector(0x82A6, 0));
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expectVSGlyphs(fc, 0x82A6, std::set<uint32_t>({0xFE00, 0xFE0E, 0xE0100, 0xE0101, 0xE0102}));
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EXPECT_FALSE(fc->hasVariationSelector(0x845B, 0));
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expectVSGlyphs(fc, 0x845B, std::set<uint32_t>({0xFE01, 0xFE0E, 0xE0101, 0xE0102, 0xE0103}));
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EXPECT_FALSE(fc->hasVariationSelector(0x537F, 0));
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expectVSGlyphs(fc, 0x537F, std::set<uint32_t>({0xFE0E}));
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EXPECT_FALSE(fc->hasVariationSelector(0x717D, 0));
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expectVSGlyphs(fc, 0x717D, std::set<uint32_t>({0xFE02, 0xE0102, 0xE0103}));
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}
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TEST(FontCollectionTest, hasVariationSelectorTest) {
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auto fc = buildFontCollection(kVsTestFont);
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expectVSGlyphsForVsTestFont(fc.get());
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}
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const char kEmojiXmlFile[] = "emoji.xml";
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TEST(FontCollectionTest, hasVariationSelectorTest_emoji) {
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auto collection = buildFontCollectionFromXml(kEmojiXmlFile);
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// Both text/color font have cmap format 14 subtable entry for VS15/VS16 respectively.
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EXPECT_TRUE(collection->hasVariationSelector(0x2623, 0xFE0E));
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EXPECT_TRUE(collection->hasVariationSelector(0x2623, 0xFE0F));
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// The text font has cmap format 14 subtable entry for VS15 but the color font doesn't have for
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// VS16
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EXPECT_TRUE(collection->hasVariationSelector(0x2626, 0xFE0E));
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EXPECT_FALSE(collection->hasVariationSelector(0x2626, 0xFE0F));
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// The color font has cmap format 14 subtable entry for VS16 but the text font doesn't have for
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// VS15.
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EXPECT_TRUE(collection->hasVariationSelector(0x262A, 0xFE0E));
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EXPECT_TRUE(collection->hasVariationSelector(0x262A, 0xFE0F));
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// Neither text/color font have cmap format 14 subtable entry for VS15/VS16.
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EXPECT_TRUE(collection->hasVariationSelector(0x262E, 0xFE0E));
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EXPECT_FALSE(collection->hasVariationSelector(0x262E, 0xFE0F));
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// Text font doesn't support U+1F3FD. Only the color emoji fonts has. So VS15 is not supported.
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EXPECT_FALSE(collection->hasVariationSelector(0x1F3FD, 0xFE0E));
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// Text font doesn't have U+262F U+FE0E or even its base code point U+262F.
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EXPECT_FALSE(collection->hasVariationSelector(0x262F, 0xFE0E));
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// None of the fonts support U+2229.
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EXPECT_FALSE(collection->hasVariationSelector(0x2229, 0xFE0E));
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EXPECT_FALSE(collection->hasVariationSelector(0x2229, 0xFE0F));
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}
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TEST(FontCollectionTest, newEmojiTest) {
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auto collection = buildFontCollectionFromXml(kEmojiXmlFile);
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// U+2695, U+2640, U+2642 are not in emoji catrgory in Unicode 9 but they are now in emoji
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// category. Should return true even if U+FE0E was appended.
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// These three emojis are only avalilable in TextEmoji.ttf but U+2695 is excluded here since it
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// is used in other tests.
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EXPECT_TRUE(collection->hasVariationSelector(0x2640, 0xFE0E));
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EXPECT_FALSE(collection->hasVariationSelector(0x2640, 0xFE0F));
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EXPECT_TRUE(collection->hasVariationSelector(0x2642, 0xFE0E));
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EXPECT_FALSE(collection->hasVariationSelector(0x2642, 0xFE0F));
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}
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TEST(FontCollectionTest, createWithVariations) {
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// This font has 'wdth' and 'wght' axes.
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const char kMultiAxisFont[] = "MultiAxis.ttf";
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const char kNoAxisFont[] = "Regular.ttf";
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std::shared_ptr<FontCollection> multiAxisFc = buildFontCollection(kMultiAxisFont);
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std::shared_ptr<FontCollection> noAxisFc = buildFontCollection(kNoAxisFont);
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{
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// Do not ceate new instance if none of variations are specified.
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EXPECT_EQ(nullptr,
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multiAxisFc->createCollectionWithVariation(std::vector<FontVariation>()));
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EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(std::vector<FontVariation>()));
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}
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{
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// New instance should be used for supported variation.
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std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f}};
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std::shared_ptr<FontCollection> newFc(
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multiAxisFc->createCollectionWithVariation(variations));
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EXPECT_NE(nullptr, newFc.get());
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EXPECT_NE(multiAxisFc.get(), newFc.get());
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EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations));
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}
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{
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// New instance should be used for supported variation (multiple variations case).
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std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f},
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{MinikinFont::MakeTag('w', 'g', 'h', 't'), 1.0f}};
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std::shared_ptr<FontCollection> newFc(
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multiAxisFc->createCollectionWithVariation(variations));
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EXPECT_NE(nullptr, newFc.get());
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EXPECT_NE(multiAxisFc.get(), newFc.get());
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EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations));
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}
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{
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// Do not ceate new instance if none of variations are supported.
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std::vector<FontVariation> variations = {{MinikinFont::MakeTag('Z', 'Z', 'Z', 'Z'), 1.0f}};
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EXPECT_EQ(nullptr, multiAxisFc->createCollectionWithVariation(variations));
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EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations));
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}
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{
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// At least one axis is supported, should create new instance.
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std::vector<FontVariation> variations = {{MinikinFont::MakeTag('w', 'd', 't', 'h'), 1.0f},
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{MinikinFont::MakeTag('Z', 'Z', 'Z', 'Z'), 1.0f}};
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std::shared_ptr<FontCollection> newFc(
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multiAxisFc->createCollectionWithVariation(variations));
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EXPECT_NE(nullptr, newFc.get());
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EXPECT_NE(multiAxisFc.get(), newFc.get());
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EXPECT_EQ(nullptr, noAxisFc->createCollectionWithVariation(variations));
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}
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}
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std::vector<uint8_t> writeToBuffer(
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const std::vector<std::shared_ptr<FontCollection>>& collections) {
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BufferWriter fakeWriter(nullptr);
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FontCollection::writeVector<writeFreeTypeMinikinFontForTest>(&fakeWriter, collections);
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std::vector<uint8_t> buffer(fakeWriter.size());
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BufferWriter writer(buffer.data());
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FontCollection::writeVector<writeFreeTypeMinikinFontForTest>(&writer, collections);
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return buffer;
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}
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TEST(FontCollectionTest, bufferTest) {
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{
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std::vector<std::shared_ptr<FontCollection>> original({buildFontCollection(kVsTestFont)});
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std::vector<uint8_t> buffer = writeToBuffer(original);
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BufferReader reader(buffer.data());
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auto copied = FontCollection::readVector<readFreeTypeMinikinFontForTest>(&reader);
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EXPECT_EQ(1u, copied.size());
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expectVSGlyphsForVsTestFont(copied[0].get());
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EXPECT_EQ(original[0]->getSupportedTags(), copied[0]->getSupportedTags());
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// Id will be different.
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EXPECT_NE(original[0]->getId(), copied[0]->getId());
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std::vector<uint8_t> newBuffer = writeToBuffer(copied);
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EXPECT_EQ(buffer, newBuffer);
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}
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{
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// Test that FontFamily instances are shared.
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std::vector<std::shared_ptr<FontFamily>> families = {buildFontFamily(kVsTestFont)};
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auto fc1 = std::make_shared<FontCollection>(families);
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auto fc2 = std::make_shared<FontCollection>(families);
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std::vector<std::shared_ptr<FontCollection>> original({fc1, fc2});
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std::vector<uint8_t> buffer = writeToBuffer(original);
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BufferReader reader(buffer.data());
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auto copied = FontCollection::readVector<readFreeTypeMinikinFontForTest>(&reader);
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EXPECT_EQ(2u, copied.size());
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EXPECT_EQ(copied[0]->mFamilies[0], copied[1]->mFamilies[0]);
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std::vector<uint8_t> newBuffer = writeToBuffer(copied);
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EXPECT_EQ(buffer, newBuffer);
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}
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{
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// Test axes.
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// This font has 'wdth' and 'wght' axes.
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const char kMultiAxisFont[] = "MultiAxis.ttf";
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std::vector<std::shared_ptr<FontCollection>> original(
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{buildFontCollection(kMultiAxisFont)});
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std::vector<uint8_t> buffer = writeToBuffer(original);
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BufferReader reader(buffer.data());
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auto copied = FontCollection::readVector<readFreeTypeMinikinFontForTest>(&reader);
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EXPECT_EQ(1u, copied.size());
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EXPECT_EQ(1u,
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copied[0]->getSupportedTags().count(MinikinFont::MakeTag('w', 'd', 't', 'h')));
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EXPECT_EQ(1u,
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copied[0]->getSupportedTags().count(MinikinFont::MakeTag('w', 'g', 'h', 't')));
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std::vector<uint8_t> newBuffer = writeToBuffer(copied);
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EXPECT_EQ(buffer, newBuffer);
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}
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}
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TEST(FontCollectionTest, FamilyMatchResultBuilderTest) {
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using Builder = FontCollection::FamilyMatchResult::Builder;
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EXPECT_TRUE(Builder().empty());
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EXPECT_EQ(0u, Builder().size());
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EXPECT_EQ(1u, Builder().add(5).size());
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EXPECT_EQ(2u, Builder().add(5).add(4).size());
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// Reset
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EXPECT_TRUE(Builder().add(5).reset().empty());
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EXPECT_EQ(0u, Builder().add(5).reset().size());
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}
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TEST(FontCollectionTest, FamilyMatchResultTest) {
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using Builder = FontCollection::FamilyMatchResult::Builder;
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auto r = Builder().build();
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EXPECT_EQ(0u, r.size());
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EXPECT_TRUE(r.empty());
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r = Builder().add(1).build();
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EXPECT_EQ(1u, r.size());
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EXPECT_FALSE(r.empty());
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EXPECT_EQ(1u, r[0]);
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r = Builder().add(1).add(2).build();
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EXPECT_EQ(2u, r.size());
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EXPECT_FALSE(r.empty());
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EXPECT_EQ(1u, r[0]);
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EXPECT_EQ(2u, r[1]);
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}
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TEST(FontCollectionTest, FamilyMatchResultTest_BuilderHoldeFirst7) {
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auto b = FontCollection::FamilyMatchResult::Builder();
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for (uint8_t i = 0; i < 128; ++i) {
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b.add(i);
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}
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auto r = b.build();
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EXPECT_EQ(7u, r.size());
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EXPECT_FALSE(r.empty());
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EXPECT_EQ(0u, r[0]);
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EXPECT_EQ(1u, r[1]);
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EXPECT_EQ(2u, r[2]);
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EXPECT_EQ(3u, r[3]);
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EXPECT_EQ(4u, r[4]);
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EXPECT_EQ(5u, r[5]);
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EXPECT_EQ(6u, r[6]);
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}
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TEST(FontCollectionTest, FamilyMatchResultTest_iterator) {
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auto b = FontCollection::FamilyMatchResult::Builder();
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for (uint8_t i = 0; i < 7; ++i) {
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b.add(i);
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}
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auto r = b.build();
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EXPECT_EQ(7u, r.size());
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EXPECT_FALSE(r.empty());
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int i = 0;
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for (auto v : r) {
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EXPECT_EQ(i, v);
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i++;
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}
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}
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TEST(FontCollectionTest, FamilyMatchResultTest_intersect) {
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using Builder = FontCollection::FamilyMatchResult::Builder;
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EXPECT_EQ(Builder().add(1).add(2).add(3).build(),
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FontCollection::FamilyMatchResult::intersect(Builder().add(1).add(2).add(3).build(),
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Builder().add(1).add(2).add(3).build()));
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EXPECT_EQ(Builder().build(),
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FontCollection::FamilyMatchResult::intersect(Builder().add(1).add(2).add(3).build(),
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Builder().build()));
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EXPECT_EQ(Builder().build(),
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FontCollection::FamilyMatchResult::intersect(Builder().add(2).add(4).add(6).build(),
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Builder().add(1).add(3).add(5).build()));
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EXPECT_EQ(Builder().add(1).add(3).build(),
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FontCollection::FamilyMatchResult::intersect(Builder().add(1).add(2).add(3).build(),
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Builder().add(1).add(3).add(5).build()));
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}
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} // namespace minikin
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