More old files deletion.

ui/gfx/font_render_params_linux_unittest.cc

-// 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 "ui/gfx/font_render_params.h"
-
-#include "base/files/file_path.h"
-#include "base/files/scoped_temp_dir.h"
-#include "base/logging.h"
-#include "base/macros.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/gfx/font.h"
-#include "ui/gfx/linux_font_delegate.h"
-#include "ui/gfx/pango_util.h"
-#include "ui/gfx/test/fontconfig_util_linux.h"
-
-namespace gfx {
-
-namespace {
-
-// Implementation of LinuxFontDelegate that returns a canned FontRenderParams
-// struct. This is used to isolate tests from the system's local configuration.
-class TestFontDelegate : public LinuxFontDelegate {
- public:
-  TestFontDelegate() {}
-  virtual ~TestFontDelegate() {}
-
-  void set_params(const FontRenderParams& params) { params_ = params; }
-
-  virtual FontRenderParams GetDefaultFontRenderParams() const override {
-    return params_;
-  }
-  virtual scoped_ptr<ScopedPangoFontDescription>
-      GetDefaultPangoFontDescription() const override {
-    NOTIMPLEMENTED();
-    return scoped_ptr<ScopedPangoFontDescription>();
-  }
-  virtual double GetFontDPI() const override {
-    NOTIMPLEMENTED();
-    return 96.0;
-  }
-
- private:
-  FontRenderParams params_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestFontDelegate);
-};
-
-// Loads the first system font defined by fontconfig_util_linux.h with a base
-// filename of |basename|. Case is ignored.
-bool LoadSystemFont(const std::string& basename) {
-  for (size_t i = 0; i < kNumSystemFontsForFontconfig; ++i) {
-    base::FilePath path(gfx::kSystemFontsForFontconfig[i]);
-    if (strcasecmp(path.BaseName().value().c_str(), basename.c_str()) == 0)
-      return LoadFontIntoFontconfig(path);
-  }
-  LOG(ERROR) << "Unable to find system font named " << basename;
-  return false;
-}
-
-}  // namespace
-
-class FontRenderParamsTest : public testing::Test {
- public:
-  FontRenderParamsTest() {
-    SetUpFontconfig();
-    CHECK(temp_dir_.CreateUniqueTempDir());
-    original_font_delegate_ = LinuxFontDelegate::instance();
-    LinuxFontDelegate::SetInstance(&test_font_delegate_);
-    ClearFontRenderParamsCacheForTest();
-  }
-
-  virtual ~FontRenderParamsTest() {
-    LinuxFontDelegate::SetInstance(
-        const_cast<LinuxFontDelegate*>(original_font_delegate_));
-    TearDownFontconfig();
-  }
-
- protected:
-  base::ScopedTempDir temp_dir_;
-  const LinuxFontDelegate* original_font_delegate_;
-  TestFontDelegate test_font_delegate_;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(FontRenderParamsTest);
-};
-
-TEST_F(FontRenderParamsTest, Default) {
-  // Fontconfig needs to know about at least one font to return a match.
-  ASSERT_TRUE(LoadSystemFont("arial.ttf"));
-  ASSERT_TRUE(LoadConfigDataIntoFontconfig(temp_dir_.path(),
-      std::string(kFontconfigFileHeader) +
-      kFontconfigMatchHeader +
-      CreateFontconfigEditStanza("antialias", "bool", "true") +
-      CreateFontconfigEditStanza("autohint", "bool", "false") +
-      CreateFontconfigEditStanza("hinting", "bool", "true") +
-      CreateFontconfigEditStanza("hintstyle", "const", "hintfull") +
-      CreateFontconfigEditStanza("rgba", "const", "rgb") +
-      kFontconfigMatchFooter +
-      kFontconfigFileFooter));
-
-  FontRenderParams params = GetFontRenderParams(
-      FontRenderParamsQuery(true), NULL);
-  EXPECT_TRUE(params.antialiasing);
-  EXPECT_FALSE(params.autohinter);
-  EXPECT_TRUE(params.use_bitmaps);
-  EXPECT_EQ(FontRenderParams::HINTING_FULL, params.hinting);
-  EXPECT_FALSE(params.subpixel_positioning);
-  EXPECT_EQ(FontRenderParams::SUBPIXEL_RENDERING_RGB,
-            params.subpixel_rendering);
-}
-
-TEST_F(FontRenderParamsTest, Size) {
-  ASSERT_TRUE(LoadSystemFont("arial.ttf"));
-  ASSERT_TRUE(LoadConfigDataIntoFontconfig(temp_dir_.path(),
-      std::string(kFontconfigFileHeader) +
-      kFontconfigMatchHeader +
-      CreateFontconfigEditStanza("antialias", "bool", "true") +
-      CreateFontconfigEditStanza("hinting", "bool", "true") +
-      CreateFontconfigEditStanza("hintstyle", "const", "hintfull") +
-      CreateFontconfigEditStanza("rgba", "const", "none") +
-      kFontconfigMatchFooter +
-      kFontconfigMatchHeader +
-      CreateFontconfigTestStanza("pixelsize", "less_eq", "double", "10") +
-      CreateFontconfigEditStanza("antialias", "bool", "false") +
-      kFontconfigMatchFooter +
-      kFontconfigMatchHeader +
-      CreateFontconfigTestStanza("size", "more_eq", "double", "20") +
-      CreateFontconfigEditStanza("hintstyle", "const", "hintslight") +
-      CreateFontconfigEditStanza("rgba", "const", "rgb") +
-      kFontconfigMatchFooter +
-      kFontconfigFileFooter));
-
-  // The defaults should be used when the supplied size isn't matched by the
-  // second or third blocks.
-  FontRenderParamsQuery query(false);
-  query.pixel_size = 12;
-  FontRenderParams params = GetFontRenderParams(query, NULL);
-  EXPECT_TRUE(params.antialiasing);
-  EXPECT_EQ(FontRenderParams::HINTING_FULL, params.hinting);
-  EXPECT_EQ(FontRenderParams::SUBPIXEL_RENDERING_NONE,
-            params.subpixel_rendering);
-
-  query.pixel_size = 10;
-  params = GetFontRenderParams(query, NULL);
-  EXPECT_FALSE(params.antialiasing);
-  EXPECT_EQ(FontRenderParams::HINTING_FULL, params.hinting);
-  EXPECT_EQ(FontRenderParams::SUBPIXEL_RENDERING_NONE,
-            params.subpixel_rendering);
-
-  query.pixel_size = 0;
-  query.point_size = 20;
-  params = GetFontRenderParams(query, NULL);
-  EXPECT_TRUE(params.antialiasing);
-  EXPECT_EQ(FontRenderParams::HINTING_SLIGHT, params.hinting);
-  EXPECT_EQ(FontRenderParams::SUBPIXEL_RENDERING_RGB,
-            params.subpixel_rendering);
-}
-
-TEST_F(FontRenderParamsTest, Style) {
-  ASSERT_TRUE(LoadSystemFont("arial.ttf"));
-  // Load a config that disables subpixel rendering for bold text and disables
-  // hinting for italic text.
-  ASSERT_TRUE(LoadConfigDataIntoFontconfig(temp_dir_.path(),
-      std::string(kFontconfigFileHeader) +
-      kFontconfigMatchHeader +
-      CreateFontconfigEditStanza("antialias", "bool", "true") +
-      CreateFontconfigEditStanza("hinting", "bool", "true") +
-      CreateFontconfigEditStanza("hintstyle", "const", "hintslight") +
-      CreateFontconfigEditStanza("rgba", "const", "rgb") +
-      kFontconfigMatchFooter +
-      kFontconfigMatchHeader +
-      CreateFontconfigTestStanza("weight", "eq", "const", "bold") +
-      CreateFontconfigEditStanza("rgba", "const", "none") +
-      kFontconfigMatchFooter +
-      kFontconfigMatchHeader +
-      CreateFontconfigTestStanza("slant", "eq", "const", "italic") +
-      CreateFontconfigEditStanza("hinting", "bool", "false") +
-      kFontconfigMatchFooter +
-      kFontconfigFileFooter));
-
-  FontRenderParamsQuery query(false);
-  query.style = Font::NORMAL;
-  FontRenderParams params = GetFontRenderParams(query, NULL);
-  EXPECT_EQ(FontRenderParams::HINTING_SLIGHT, params.hinting);
-  EXPECT_EQ(FontRenderParams::SUBPIXEL_RENDERING_RGB,
-            params.subpixel_rendering);
-
-  query.style = Font::BOLD;
-  params = GetFontRenderParams(query, NULL);
-  EXPECT_EQ(FontRenderParams::HINTING_SLIGHT, params.hinting);
-  EXPECT_EQ(FontRenderParams::SUBPIXEL_RENDERING_NONE,
-            params.subpixel_rendering);
-
-  query.style = Font::ITALIC;
-  params = GetFontRenderParams(query, NULL);
-  EXPECT_EQ(FontRenderParams::HINTING_NONE, params.hinting);
-  EXPECT_EQ(FontRenderParams::SUBPIXEL_RENDERING_RGB,
-            params.subpixel_rendering);
-
-  query.style = Font::BOLD | Font::ITALIC;
-  params = GetFontRenderParams(query, NULL);
-  EXPECT_EQ(FontRenderParams::HINTING_NONE, params.hinting);
-  EXPECT_EQ(FontRenderParams::SUBPIXEL_RENDERING_NONE,
-            params.subpixel_rendering);
-}
-
-TEST_F(FontRenderParamsTest, Scalable) {
-  ASSERT_TRUE(LoadSystemFont("arial.ttf"));
-  // Load a config that only enables antialiasing for scalable fonts.
-  ASSERT_TRUE(LoadConfigDataIntoFontconfig(temp_dir_.path(),
-      std::string(kFontconfigFileHeader) +
-      kFontconfigMatchHeader +
-      CreateFontconfigEditStanza("antialias", "bool", "false") +
-      kFontconfigMatchFooter +
-      kFontconfigMatchHeader +
-      CreateFontconfigTestStanza("scalable", "eq", "bool", "true") +
-      CreateFontconfigEditStanza("antialias", "bool", "true") +
-      kFontconfigMatchFooter +
-      kFontconfigFileFooter));
-
-  // Check that we specifically ask how scalable fonts should be rendered.
-  FontRenderParams params = GetFontRenderParams(
-      FontRenderParamsQuery(false), NULL);
-  EXPECT_TRUE(params.antialiasing);
-}
-
-TEST_F(FontRenderParamsTest, UseBitmaps) {
-  ASSERT_TRUE(LoadSystemFont("arial.ttf"));
-  // Load a config that enables embedded bitmaps for fonts <= 10 pixels.
-  ASSERT_TRUE(LoadConfigDataIntoFontconfig(temp_dir_.path(),
-      std::string(kFontconfigFileHeader) +
-      kFontconfigMatchHeader +
-      CreateFontconfigEditStanza("embeddedbitmap", "bool", "false") +
-      kFontconfigMatchFooter +
-      kFontconfigMatchHeader +
-      CreateFontconfigTestStanza("pixelsize", "less_eq", "double", "10") +
-      CreateFontconfigEditStanza("embeddedbitmap", "bool", "true") +
-      kFontconfigMatchFooter +
-      kFontconfigFileFooter));
-
-  FontRenderParamsQuery query(false);
-  FontRenderParams params = GetFontRenderParams(query, NULL);
-  EXPECT_FALSE(params.use_bitmaps);
-
-  query.pixel_size = 5;
-  params = GetFontRenderParams(query, NULL);
-  EXPECT_TRUE(params.use_bitmaps);
-}
-
-TEST_F(FontRenderParamsTest, ForceFullHintingWhenAntialiasingIsDisabled) {
-  // Load a config that disables antialiasing and hinting while requesting
-  // subpixel rendering.
-  ASSERT_TRUE(LoadSystemFont("arial.ttf"));
-  ASSERT_TRUE(LoadConfigDataIntoFontconfig(temp_dir_.path(),
-      std::string(kFontconfigFileHeader) +
-      kFontconfigMatchHeader +
-      CreateFontconfigEditStanza("antialias", "bool", "false") +
-      CreateFontconfigEditStanza("hinting", "bool", "false") +
-      CreateFontconfigEditStanza("hintstyle", "const", "hintnone") +
-      CreateFontconfigEditStanza("rgba", "const", "rgb") +
-      kFontconfigMatchFooter +
-      kFontconfigFileFooter));
-
-  // Full hinting should be forced. See the comment in GetFontRenderParams() for
-  // more information.
-  FontRenderParams params = GetFontRenderParams(
-      FontRenderParamsQuery(false), NULL);
-  EXPECT_FALSE(params.antialiasing);
-  EXPECT_EQ(FontRenderParams::HINTING_FULL, params.hinting);
-  EXPECT_EQ(FontRenderParams::SUBPIXEL_RENDERING_NONE,
-            params.subpixel_rendering);
-  EXPECT_FALSE(params.subpixel_positioning);
-}
-
-#if defined(OS_CHROMEOS)
-TEST_F(FontRenderParamsTest, ForceSubpixelPositioning) {
-  {
-    FontRenderParams params =
-        GetFontRenderParams(FontRenderParamsQuery(false), NULL);
-    EXPECT_TRUE(params.antialiasing);
-    EXPECT_FALSE(params.subpixel_positioning);
-    SetFontRenderParamsDeviceScaleFactor(1.0f);
-  }
-  ClearFontRenderParamsCacheForTest();
-  SetFontRenderParamsDeviceScaleFactor(1.25f);
-  // Subpixel positioning should be forced.
-  {
-    FontRenderParams params =
-        GetFontRenderParams(FontRenderParamsQuery(false), NULL);
-    EXPECT_TRUE(params.antialiasing);
-    EXPECT_TRUE(params.subpixel_positioning);
-    SetFontRenderParamsDeviceScaleFactor(1.0f);
-  }
-}
-#endif
-
-TEST_F(FontRenderParamsTest, OnlySetConfiguredValues) {
-  // Configure the LinuxFontDelegate (which queries GtkSettings on desktop
-  // Linux) to request subpixel rendering.
-  FontRenderParams system_params;
-  system_params.subpixel_rendering = FontRenderParams::SUBPIXEL_RENDERING_RGB;
-  test_font_delegate_.set_params(system_params);
-
-  // Load a Fontconfig config that enables antialiasing but doesn't say anything
-  // about subpixel rendering.
-  ASSERT_TRUE(LoadSystemFont("arial.ttf"));
-  ASSERT_TRUE(LoadConfigDataIntoFontconfig(temp_dir_.path(),
-      std::string(kFontconfigFileHeader) +
-      kFontconfigMatchHeader +
-      CreateFontconfigEditStanza("antialias", "bool", "true") +
-      kFontconfigMatchFooter +
-      kFontconfigFileFooter));
-
-  // The subpixel rendering setting from the delegate should make it through.
-  FontRenderParams params = GetFontRenderParams(
-      FontRenderParamsQuery(false), NULL);
-  EXPECT_EQ(system_params.subpixel_rendering, params.subpixel_rendering);
-}
-
-TEST_F(FontRenderParamsTest, NoFontconfigMatch) {
-  // Don't load a Fontconfig configuration.
-  FontRenderParams system_params;
-  system_params.antialiasing = true;
-  system_params.hinting = FontRenderParams::HINTING_MEDIUM;
-  system_params.subpixel_rendering = FontRenderParams::SUBPIXEL_RENDERING_RGB;
-  test_font_delegate_.set_params(system_params);
-
-  FontRenderParamsQuery query(false);
-  query.families.push_back("Arial");
-  query.families.push_back("Times New Roman");
-  query.pixel_size = 10;
-  std::string suggested_family;
-  FontRenderParams params = GetFontRenderParams(query, &suggested_family);
-
-  // The system params and the first requested family should be returned.
-  EXPECT_EQ(system_params.antialiasing, params.antialiasing);
-  EXPECT_EQ(system_params.hinting, params.hinting);
-  EXPECT_EQ(system_params.subpixel_rendering, params.subpixel_rendering);
-  EXPECT_EQ(query.families[0], suggested_family);
-}
-
-TEST_F(FontRenderParamsTest, MissingFamily) {
-  // With Arial and Verdana installed, request (in order) Helvetica, Arial, and
-  // Verdana and check that Arial is returned.
-  ASSERT_TRUE(LoadSystemFont("arial.ttf"));
-  ASSERT_TRUE(LoadSystemFont("verdana.ttf"));
-  FontRenderParamsQuery query(false);
-  query.families.push_back("Helvetica");
-  query.families.push_back("Arial");
-  query.families.push_back("Verdana");
-  std::string suggested_family;
-  GetFontRenderParams(query, &suggested_family);
-  EXPECT_EQ("Arial", suggested_family);
-}
-
-TEST_F(FontRenderParamsTest, SubstituteFamily) {
-  // Configure Fontconfig to use Verdana for both Helvetica and Arial.
-  ASSERT_TRUE(LoadSystemFont("arial.ttf"));
-  ASSERT_TRUE(LoadSystemFont("verdana.ttf"));
-  ASSERT_TRUE(LoadConfigDataIntoFontconfig(temp_dir_.path(),
-      std::string(kFontconfigFileHeader) +
-      CreateFontconfigAliasStanza("Helvetica", "Verdana") +
-      kFontconfigMatchHeader +
-      CreateFontconfigTestStanza("family", "eq", "string", "Arial") +
-      CreateFontconfigEditStanza("family", "string", "Verdana") +
-      kFontconfigMatchFooter +
-      kFontconfigFileFooter));
-
-  FontRenderParamsQuery query(false);
-  query.families.push_back("Helvetica");
-  std::string suggested_family;
-  GetFontRenderParams(query, &suggested_family);
-  EXPECT_EQ("Verdana", suggested_family);
-
-  query.families.clear();
-  query.families.push_back("Arial");
-  suggested_family.clear();
-  GetFontRenderParams(query, &suggested_family);
-  EXPECT_EQ("Verdana", suggested_family);
-}
-
-}  // namespace gfx