/*
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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 "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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TEST(FontCollectionTest, hasVariationSelectorTest) {
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auto fc = buildFontCollection(kVsTestFont);
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EXPECT_FALSE(fc->hasVariationSelector(0x82A6, 0));
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expectVSGlyphs(fc.get(), 0x82A6,
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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.get(), 0x845B,
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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.get(), 0x537F, std::set<uint32_t>({0xFE0E}));
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EXPECT_FALSE(fc->hasVariationSelector(0x717D, 0));
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expectVSGlyphs(fc.get(), 0x717D, std::set<uint32_t>({0xFE02, 0xE0102, 0xE0103}));
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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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} // namespace minikin
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