chrome/browser/ui/webui/theme_source_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/bind.h"
   6 #include "base/memory/ref_counted_memory.h"
   7 #include "base/message_loop/message_loop.h"
   8 #include "chrome/browser/profiles/profile.h"
   9 #include "chrome/browser/ui/webui/theme_source.h"
  10 #include "chrome/common/url_constants.h"
  11 #include "chrome/test/base/testing_profile.h"
  12 #include "content/public/test/test_browser_thread.h"
  13 #include "grit/theme_resources.h"
  14 #include "testing/gtest/include/gtest/gtest.h"
  15
  16 using content::BrowserThread;
  17
  18 class WebUISourcesTest : public testing::Test {
  19  public:
  20   WebUISourcesTest()
  21       : result_data_size_(0),
  22         ui_thread_(BrowserThread::UI, base::MessageLoop::current()) {}
  23
  24   TestingProfile* profile() const { return profile_.get(); }
  25   ThemeSource* theme_source() const { return theme_source_.get(); }
  26   size_t result_data_size() const { return result_data_size_; }
  27
  28   void StartDataRequest(const std::string& source) {
  29     theme_source()->StartDataRequest(source, -1, -1, callback_);
  30   }
  31
  32   size_t result_data_size_;
  33
  34  private:
  35   void SetUp() override {
  36     profile_.reset(new TestingProfile());
  37     theme_source_.reset(new ThemeSource(profile_.get()));
  38     callback_ = base::Bind(&WebUISourcesTest::SendResponse,
  39                            base::Unretained(this));
  40   }
  41
  42   void TearDown() override {
  43     theme_source_.reset();
  44     profile_.reset();
  45   }
  46
  47   void SendResponse(base::RefCountedMemory* data) {
  48     result_data_size_ = data ? data->size() : 0;
  49   }
  50
  51   content::URLDataSource::GotDataCallback callback_;
  52
  53   base::MessageLoop loop_;
  54   content::TestBrowserThread ui_thread_;
  55
  56   scoped_ptr<TestingProfile> profile_;
  57   scoped_ptr<ThemeSource> theme_source_;
  58 };
  59
  60 TEST_F(WebUISourcesTest, ThemeSourceMimeTypes) {
  61   EXPECT_EQ(theme_source()->GetMimeType("css/new_tab_theme.css"), "text/css");
  62   EXPECT_EQ(theme_source()->GetMimeType("css/new_tab_theme.css?foo"),
  63                                         "text/css");
  64   EXPECT_EQ(theme_source()->GetMimeType("WRONGURL"), "image/png");
  65 }
  66
  67 TEST_F(WebUISourcesTest, ThemeSourceImages) {
  68   // We used to PNGEncode the images ourselves, but encoder differences
  69   // invalidated that. We now just check that the image exists.
  70   StartDataRequest("IDR_THEME_FRAME_INCOGNITO");
  71   size_t min = 0;
  72   EXPECT_GT(result_data_size_, min);
  73
  74   StartDataRequest("IDR_THEME_TOOLBAR");
  75   EXPECT_GT(result_data_size_, min);
  76 }
  77
  78 TEST_F(WebUISourcesTest, ThemeSourceCSS) {
  79   content::TestBrowserThread io_thread(BrowserThread::IO,
  80                                        base::MessageLoop::current());
  81   // Generating the test data for the NTP CSS would just involve copying the
  82   // method, or being super brittle and hard-coding the result (requiring
  83   // an update to the unittest every time the CSS template changes), so we
  84   // just check for a successful request and data that is non-null.
  85   size_t empty_size = 0;
  86
  87   StartDataRequest("css/new_tab_theme.css");
  88   EXPECT_NE(result_data_size_, empty_size);
  89
  90   StartDataRequest("css/new_tab_theme.css?pie");
  91   EXPECT_NE(result_data_size_, empty_size);
  92
  93 #if !DCHECK_IS_ON()
  94   // Check that we send NULL back when we can't find what we're looking for.
  95   StartDataRequest("css/WRONGURL");
  96   EXPECT_EQ(result_data_size_, empty_size);
  97 #endif
  98 }