Supporting high dpi favicons in Instant Extended.

chrome/browser/ui/webui/favicon_source_unittest.cc

-// Copyright (c) 2013 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 "chrome/browser/ui/webui/favicon_source.h"
-
-#include "base/message_loop.h"
-#include "base/strings/string_number_conversions.h"
-#include "chrome/browser/search/instant_service.h"
-#include "chrome/browser/search/instant_service_factory.h"
-#include "chrome/test/base/testing_profile.h"
-#include "content/public/test/test_browser_thread.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/base/layout.h"
-
-class FaviconSourceTest : public testing::Test {
- public:
-  FaviconSourceTest()
-      : loop_(base::MessageLoop::TYPE_UI),
-        ui_thread_(content::BrowserThread::UI, base::MessageLoop::current()),
-        io_thread_(content::BrowserThread::IO, base::MessageLoop::current()),
-        profile_(new TestingProfile()),
-        favicon_source_(
-            new FaviconSource(profile_.get(), FaviconSource::ANY)) {
-
-    // Set the supported scale factors because the supported scale factors
-    // affect the result of ParsePathAndScale().
-    std::vector<ui::ScaleFactor> supported_scale_factors;
-    supported_scale_factors.push_back(ui::SCALE_FACTOR_100P);
-    supported_scale_factors.push_back(ui::SCALE_FACTOR_140P);
-    scoped_set_supported_scale_factors_.reset(
-        new ui::test::ScopedSetSupportedScaleFactors(supported_scale_factors));
-  }
-
-  virtual ~FaviconSourceTest() {
-  }
-
-  FaviconSource* favicon_source() const { return favicon_source_.get(); }
-
- private:
-  base::MessageLoop loop_;
-  content::TestBrowserThread ui_thread_;
-  content::TestBrowserThread io_thread_;
-  scoped_ptr<TestingProfile> profile_;
-
-  typedef scoped_ptr<ui::test::ScopedSetSupportedScaleFactors>
-      ScopedSetSupportedScaleFactors;
-  ScopedSetSupportedScaleFactors scoped_set_supported_scale_factors_;
-
-  scoped_ptr<FaviconSource> favicon_source_;
-
-  DISALLOW_COPY_AND_ASSIGN(FaviconSourceTest);
-};
-
-// Test parsing the chrome-search://favicon/ URLs
-TEST_F(FaviconSourceTest, InstantParsing) {
-  const std::string path("chrome-search://favicon/http://www.google.com");
-  bool is_icon_url;
-  GURL url;
-  int size_in_dip;
-  ui::ScaleFactor scale_factor;
-
-  EXPECT_TRUE(favicon_source()->ParsePath(path, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_FALSE(is_icon_url);
-  EXPECT_EQ(GURL(path), url);
-  EXPECT_EQ(16, size_in_dip);
-  EXPECT_EQ(ui::SCALE_FACTOR_100P, scale_factor);
-}
-
-// Test parsing the chrome://favicon URLs
-TEST_F(FaviconSourceTest, Parsing) {
-  const GURL kUrl("https://www.google.ca/imghp?hl=en&tab=wi");
-
-  bool is_icon_url;
-  GURL url;
-  int size_in_dip;
-  ui::ScaleFactor scale_factor;
-
-  // 1) Test parsing path with no extra parameters.
-  const std::string path1 = kUrl.spec();
-  EXPECT_TRUE(favicon_source()->ParsePath(path1, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_FALSE(is_icon_url);
-  EXPECT_EQ(kUrl, url);
-  EXPECT_EQ(16, size_in_dip);
-  EXPECT_EQ(ui::SCALE_FACTOR_100P, scale_factor);
-
-  // 2) Test parsing path with a 'size' parameter.
-  //
-  // Test that we can still parse the legacy 'size' parameter format.
-  const std::string path2 = "size/32/" + kUrl.spec();
-  EXPECT_TRUE(favicon_source()->ParsePath(path2, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_FALSE(is_icon_url);
-  EXPECT_EQ(kUrl, url);
-  EXPECT_EQ(32, size_in_dip);
-  EXPECT_EQ(ui::SCALE_FACTOR_100P, scale_factor);
-
-  // Test parsing current 'size' parameter format.
-  const std::string path3 = "size/32@1.4x/" + kUrl.spec();
-  EXPECT_TRUE(favicon_source()->ParsePath(path3, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_FALSE(is_icon_url);
-  EXPECT_EQ(kUrl, url);
-  EXPECT_EQ(32, size_in_dip);
-  EXPECT_EQ(ui::SCALE_FACTOR_140P, scale_factor);
-
-  // Test that we pick the ui::ScaleFactor which is closest to the passed in
-  // scale factor.
-  const std::string path4 = "size/16@1.41x/" + kUrl.spec();
-  EXPECT_TRUE(favicon_source()->ParsePath(path4, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_FALSE(is_icon_url);
-  EXPECT_EQ(kUrl, url);
-  EXPECT_EQ(16, size_in_dip);
-  EXPECT_EQ(ui::SCALE_FACTOR_140P, scale_factor);
-
-  // Invalid cases.
-  const std::string path5 = "size/" + kUrl.spec();
-  EXPECT_FALSE(favicon_source()->ParsePath(path5, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  const std::string path6 = "size/@1x/" + kUrl.spec();
-  EXPECT_FALSE(favicon_source()->ParsePath(path6, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  const std::string path7 = "size/abc@1x/" + kUrl.spec();
-  EXPECT_FALSE(favicon_source()->ParsePath(path7, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-
-  // Part of url looks like 'size' parameter.
-  const std::string path8 = "http://www.google.com/size/32@1.4x";
-  EXPECT_TRUE(favicon_source()->ParsePath(path8, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_FALSE(is_icon_url);
-  EXPECT_EQ(path8, url.spec());
-  EXPECT_EQ(16, size_in_dip);
-  EXPECT_EQ(ui::SCALE_FACTOR_100P, scale_factor);
-
-  // 3) Test parsing path with the 'largest' parameter.
-  const std::string path9 = "largest/" + kUrl.spec();
-  EXPECT_TRUE(favicon_source()->ParsePath(path9, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_FALSE(is_icon_url);
-  EXPECT_EQ(kUrl, url);
-  EXPECT_EQ(0, size_in_dip);
-  // The scale factor is meaningless when requesting the largest favicon.
-
-  // 4) Test parsing path with 'iconurl' parameter.
-  const std::string path10 = "iconurl/http://www.google.com/favicon.ico";
-  EXPECT_TRUE(favicon_source()->ParsePath(path10, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_TRUE(is_icon_url);
-  EXPECT_EQ("http://www.google.com/favicon.ico", url.spec());
-  EXPECT_EQ(16, size_in_dip);
-  EXPECT_EQ(ui::SCALE_FACTOR_100P, scale_factor);
-
-  // 5) Test parsing path with 'origin' parameter.
-  const std::string path11 = "origin/" + kUrl.spec();
-  EXPECT_TRUE(favicon_source()->ParsePath(path11, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_FALSE(is_icon_url);
-  EXPECT_EQ("https://www.google.ca/", url.spec());
-  EXPECT_EQ(16, size_in_dip);
-  EXPECT_EQ(ui::SCALE_FACTOR_100P, scale_factor);
-
-  const std::string path12 = "origin/google.com";
-  EXPECT_TRUE(favicon_source()->ParsePath(path12, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_FALSE(is_icon_url);
-  EXPECT_EQ("http://google.com/", url.spec());
-  EXPECT_EQ(16, size_in_dip);
-  EXPECT_EQ(ui::SCALE_FACTOR_100P, scale_factor);
-
-  // 6) Test parsing paths with both a 'size' parameter and a 'url modifier'
-  // parameter.
-  const std::string path13 = "size/32@1.4x/origin/" + kUrl.spec();
-  EXPECT_TRUE(favicon_source()->ParsePath(path13, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_FALSE(is_icon_url);
-  EXPECT_EQ("https://www.google.ca/", url.spec());
-  EXPECT_EQ(32, size_in_dip);
-  EXPECT_EQ(ui::SCALE_FACTOR_140P, scale_factor);
-
-  const std::string path14 =
-      "largest/iconurl/http://www.google.com/favicon.ico";
-  EXPECT_TRUE(favicon_source()->ParsePath(path14, &is_icon_url, &url,
-      &size_in_dip, &scale_factor));
-  EXPECT_TRUE(is_icon_url);
-  EXPECT_EQ("http://www.google.com/favicon.ico", url.spec());
-  EXPECT_EQ(0, size_in_dip);
-}