tests/unittest/FontCollectionTest.cpp - platform/frameworks/minikin - Git at Google

 /*
  * 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 <minikin/FontCollection.h>
 #include "FontTestUtils.h"
 #include "MinikinFontForTest.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[] = kTestFontDir "/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) {
   std::shared_ptr<MinikinFont> font(new MinikinFontForTest(kVsTestFont));
   std::shared_ptr<FontFamily> family(new FontFamily(
           std::vector<Font>({ Font(font, FontStyle()) })));
   std::vector<std::shared_ptr<FontFamily>> families({ family });
   std::shared_ptr<FontCollection> fc(new FontCollection(families));

   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[] = kTestFontDir "emoji.xml";

 TEST(FontCollectionTest, hasVariationSelectorTest_emoji) {
     std::shared_ptr<FontCollection> collection(getFontCollection(kTestFontDir, 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) {
     std::shared_ptr<FontCollection> collection(getFontCollection(kTestFontDir, 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[] = kTestFontDir "/MultiAxis.ttf";
     const char kNoAxisFont[] = kTestFontDir "/Regular.ttf";

     std::shared_ptr<MinikinFont> multiAxisFont(new MinikinFontForTest(kMultiAxisFont));
     std::shared_ptr<FontFamily> multiAxisFamily(new FontFamily(
             std::vector<Font>({ Font(multiAxisFont, FontStyle()) })));
     std::vector<std::shared_ptr<FontFamily>> multiAxisFamilies({multiAxisFamily});
     std::shared_ptr<FontCollection> multiAxisFc(new FontCollection(multiAxisFamilies));

     std::shared_ptr<MinikinFont> noAxisFont(new MinikinFontForTest(kNoAxisFont));
     std::shared_ptr<FontFamily> noAxisFamily(new FontFamily(
             std::vector<Font>({ Font(noAxisFont, FontStyle()) })));
     std::vector<std::shared_ptr<FontFamily>> noAxisFamilies({noAxisFamily});
     std::shared_ptr<FontCollection> noAxisFc(new FontCollection(noAxisFamilies));

     {
         // 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
	/*
	* 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 <minikin/FontCollection.h>
	#include "FontTestUtils.h"
	#include "MinikinFontForTest.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[] = kTestFontDir "/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) {
	std::shared_ptr<MinikinFont> font(new MinikinFontForTest(kVsTestFont));
	std::shared_ptr<FontFamily> family(new FontFamily(
	std::vector<Font>({ Font(font, FontStyle()) })));
	std::vector<std::shared_ptr<FontFamily>> families({ family });
	std::shared_ptr<FontCollection> fc(new FontCollection(families));

	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[] = kTestFontDir "emoji.xml";

	TEST(FontCollectionTest, hasVariationSelectorTest_emoji) {
	std::shared_ptr<FontCollection> collection(getFontCollection(kTestFontDir, 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) {
	std::shared_ptr<FontCollection> collection(getFontCollection(kTestFontDir, 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[] = kTestFontDir "/MultiAxis.ttf";
	const char kNoAxisFont[] = kTestFontDir "/Regular.ttf";

	std::shared_ptr<MinikinFont> multiAxisFont(new MinikinFontForTest(kMultiAxisFont));
	std::shared_ptr<FontFamily> multiAxisFamily(new FontFamily(
	std::vector<Font>({ Font(multiAxisFont, FontStyle()) })));
	std::vector<std::shared_ptr<FontFamily>> multiAxisFamilies({multiAxisFamily});
	std::shared_ptr<FontCollection> multiAxisFc(new FontCollection(multiAxisFamilies));

	std::shared_ptr<MinikinFont> noAxisFont(new MinikinFontForTest(kNoAxisFont));
	std::shared_ptr<FontFamily> noAxisFamily(new FontFamily(
	std::vector<Font>({ Font(noAxisFont, FontStyle()) })));
	std::vector<std::shared_ptr<FontFamily>> noAxisFamilies({noAxisFamily});
	std::shared_ptr<FontCollection> noAxisFc(new FontCollection(noAxisFamilies));

	{
	// 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