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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/fonts/font_cache.h"
#include "build/build_config.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/renderer/platform/fonts/font_description.h"
#include "third_party/blink/renderer/platform/fonts/simple_font_data.h"
#include "third_party/blink/renderer/platform/testing/testing_platform_support.h"
namespace blink {
TEST(FontCache, getLastResortFallbackFont) {
FontCache* font_cache = FontCache::GetFontCache();
ASSERT_TRUE(font_cache);
FontDescription font_description;
font_description.SetGenericFamily(FontDescription::kStandardFamily);
scoped_refptr<SimpleFontData> font_data =
font_cache->GetLastResortFallbackFont(font_description, kRetain);
EXPECT_TRUE(font_data);
font_description.SetGenericFamily(FontDescription::kSansSerifFamily);
font_data = font_cache->GetLastResortFallbackFont(font_description, kRetain);
EXPECT_TRUE(font_data);
}
TEST(FontCache, NoFallbackForPrivateUseArea) {
FontCache* font_cache = FontCache::GetFontCache();
ASSERT_TRUE(font_cache);
FontDescription font_description;
font_description.SetGenericFamily(FontDescription::kStandardFamily);
for (UChar32 character : {0xE000, 0xE401, 0xE402, 0xE403, 0xF8FF, 0xF0000,
0xFAAAA, 0x100000, 0x10AAAA}) {
scoped_refptr<SimpleFontData> font_data =
font_cache->FallbackFontForCharacter(font_description, character,
nullptr);
EXPECT_EQ(font_data.get(), nullptr);
}
}
TEST(FontCache, firstAvailableOrFirst) {
EXPECT_TRUE(FontCache::FirstAvailableOrFirst("").IsEmpty());
EXPECT_TRUE(FontCache::FirstAvailableOrFirst(String()).IsEmpty());
EXPECT_EQ("Arial", FontCache::FirstAvailableOrFirst("Arial"));
EXPECT_EQ("not exist", FontCache::FirstAvailableOrFirst("not exist"));
EXPECT_EQ("Arial", FontCache::FirstAvailableOrFirst("Arial, not exist"));
EXPECT_EQ("Arial", FontCache::FirstAvailableOrFirst("not exist, Arial"));
EXPECT_EQ("Arial",
FontCache::FirstAvailableOrFirst("not exist, Arial, not exist"));
EXPECT_EQ("not exist",
FontCache::FirstAvailableOrFirst("not exist, not exist 2"));
EXPECT_EQ("Arial", FontCache::FirstAvailableOrFirst(", not exist, Arial"));
EXPECT_EQ("not exist",
FontCache::FirstAvailableOrFirst(", not exist, not exist"));
}
// https://crbug.com/969402
TEST(FontCache, getLargerThanMaxUnsignedFont) {
FontCache* font_cache = FontCache::GetFontCache();
ASSERT_TRUE(font_cache);
FontDescription font_description;
font_description.SetGenericFamily(FontDescription::kStandardFamily);
font_description.SetComputedSize(std::numeric_limits<unsigned>::max() + 1.f);
FontFaceCreationParams creation_params;
scoped_refptr<blink::SimpleFontData> font_data =
font_cache->GetFontData(font_description, AtomicString());
#if !defined(OS_ANDROID) && !defined(OS_MACOSX) && !defined(OS_WIN)
// Unfortunately, we can't ensure a font here since on Android and Mac the
// unittests can't access the font configuration. However, this test passes
// when it's not crashing in FontCache.
EXPECT_TRUE(font_data);
#endif
}
#if !defined(OS_MACOSX)
TEST(FontCache, systemFont) {
FontCache::SystemFontFamily();
// Test the function does not crash. Return value varies by system and config.
}
#endif
class EnumerationConsumer {
public:
explicit EnumerationConsumer(
const std::vector<FontEnumerationEntry>& expectations) {
for (const auto& f : expectations) {
ps_name_set_.insert(f.postscript_name.Utf8());
full_name_set_.insert(f.full_name.Utf8());
family_set_.insert(f.family.Utf8());
}
}
void Consume(const std::vector<FontEnumerationEntry>& entries) {
for (auto f : entries) {
ps_name_set_.erase(f.postscript_name.Utf8());
full_name_set_.erase(f.full_name.Utf8());
family_set_.erase(f.family.Utf8());
}
}
bool AllExpectationsMet() {
return ps_name_set_.empty() && full_name_set_.empty() &&
family_set_.empty();
}
private:
std::set<std::string> ps_name_set_;
std::set<std::string> full_name_set_;
std::set<std::string> family_set_;
};
TEST(FontCache, EnumerateAvailableFonts) {
FontCache* font_cache = FontCache::GetFontCache();
ASSERT_TRUE(font_cache);
std::vector<FontEnumerationEntry> expectations;
#if defined(OS_MACOSX)
expectations.push_back(FontEnumerationEntry{"Monaco", "Monaco", "Monaco"});
expectations.push_back(
FontEnumerationEntry{"Menlo-Regular", "Menlo Regular", "Menlo"});
expectations.push_back(
FontEnumerationEntry{"Menlo-Bold", "Menlo Bold", "Menlo"});
expectations.push_back(
FontEnumerationEntry{"Menlo-BoldItalic", "Menlo Bold Italic", "Menlo"});
#endif
auto entries = font_cache->EnumerateAvailableFonts();
auto consumer = EnumerationConsumer(expectations);
consumer.Consume(entries);
ASSERT_TRUE(consumer.AllExpectationsMet());
}
TEST(FontCache, EnumerateAvailableFontsInvalidation) {
FontCache* font_cache = FontCache::GetFontCache();
ASSERT_TRUE(font_cache);
// Make sure we start at zero.
font_cache->Invalidate();
size_t zero = 0;
ASSERT_EQ(zero, font_cache->EnumerationCacheSizeForTesting());
// The cache gets populated.
size_t enum_size_1 = font_cache->EnumerateAvailableFonts().size();
ASSERT_EQ(enum_size_1, font_cache->EnumerationCacheSizeForTesting());
// Invalidation clears the cache.
font_cache->Invalidate();
ASSERT_EQ(zero, font_cache->EnumerationCacheSizeForTesting());
// The cache gets re-populated.
size_t enum_size_2 = font_cache->EnumerateAvailableFonts().size();
ASSERT_EQ(enum_size_1, enum_size_2);
}
} // namespace blink
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