chromium/third_party/blink/renderer/platform/fonts/font_cache_test.cc

// Copyright 2014 The Chromium Authors
// 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 <unicode/unistr.h>
#include <string>
#include <tuple>

#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/font_test_base.h"
#include "third_party/blink/renderer/platform/testing/testing_platform_support.h"

namespace blink {

class FontCacheTest : public FontTestBase { … };

TEST_F(FontCacheTest, getLastResortFallbackFont) { … }

TEST_F(FontCacheTest, NoFallbackForPrivateUseArea) { … }

#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
TEST_F(FontCacheTest, FallbackForEmojis) { … }
#endif  // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)

TEST_F(FontCacheTest, firstAvailableOrFirst) { … }

// 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.
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_WIN)
#define MAYBE_GetLargerThanMaxUnsignedFont …
#else
#define MAYBE_GetLargerThanMaxUnsignedFont …
#endif
// https://crbug.com/969402
TEST_F(FontCacheTest, MAYBE_GetLargerThanMaxUnsignedFont) { … }

#if !BUILDFLAG(IS_MAC)
TEST_F(FontCacheTest, systemFont) { … }
#endif

#if BUILDFLAG(IS_ANDROID)
TEST_F(FontCacheTest, Locale) {
  FontCacheKey key1(FontFaceCreationParams(), /* font_size */ 16,
                    /* options */ 0, /* device_scale_factor */ 1.0f,
                    /* size_adjust */ FontSizeAdjust(),
                    /* variation_settings */ nullptr,
                    /* palette */ nullptr,
                    /* variant_alternates */ nullptr,
                    /* is_unique_match */ false);
  FontCacheKey key2 = key1;
  EXPECT_EQ(key1.GetHash(), key2.GetHash());
  EXPECT_EQ(key1, key2);

  key2.SetLocale(AtomicString("ja"));
  EXPECT_NE(key1.GetHash(), key2.GetHash());
  EXPECT_NE(key1, key2);
}
#endif  // BUILDFLAG(IS_ANDROID)

}  // namespace blink