content/renderer/render_thread_impl_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 "content/renderer/render_thread_impl.h"
   6 #include "testing/gtest/include/gtest/gtest.h"
   7
   8 #include <string>
   9
  10 namespace content {
  11
  12 class RenderThreadImplUnittest : public testing::Test {
  13  public:
  14   RenderThreadImplUnittest()
  15       : kCustomizableHistogram_("Histogram1"),
  16         kNormalHistogram_("Histogram2") {}
  17   virtual ~RenderThreadImplUnittest() {}
  18  protected:
  19   virtual void SetUp() OVERRIDE {
  20     histogram_customizer_.custom_histograms_.clear();
  21     histogram_customizer_.custom_histograms_.insert(kCustomizableHistogram_);
  22   }
  23   RenderThreadImpl::HistogramCustomizer histogram_customizer_;
  24   const char* kCustomizableHistogram_;
  25   const char* kNormalHistogram_;
  26 };
  27
  28 TEST_F(RenderThreadImplUnittest, CustomHistogramsWithNoNavigations) {
  29   // First there is no page -> no custom histograms.
  30   EXPECT_EQ(kCustomizableHistogram_,
  31             histogram_customizer_.ConvertToCustomHistogramName(
  32                 kCustomizableHistogram_));
  33   EXPECT_EQ(kNormalHistogram_,
  34             histogram_customizer_.ConvertToCustomHistogramName(
  35                 kNormalHistogram_));
  36 }
  37
  38 TEST_F(RenderThreadImplUnittest, CustomHistogramsForOneRenderView) {
  39   histogram_customizer_.RenderViewNavigatedToHost("mail.google.com", 1);
  40   EXPECT_EQ(std::string(kCustomizableHistogram_) + ".gmail",
  41             histogram_customizer_.ConvertToCustomHistogramName(
  42                 kCustomizableHistogram_));
  43   EXPECT_EQ(kNormalHistogram_,
  44             histogram_customizer_.ConvertToCustomHistogramName(
  45                 kNormalHistogram_));
  46   histogram_customizer_.RenderViewNavigatedToHost("docs.google.com", 1);
  47   EXPECT_EQ(std::string(kCustomizableHistogram_) + ".docs",
  48             histogram_customizer_.ConvertToCustomHistogramName(
  49                 kCustomizableHistogram_));
  50   histogram_customizer_.RenderViewNavigatedToHost("nottracked.com", 1);
  51   EXPECT_EQ(kCustomizableHistogram_,
  52             histogram_customizer_.ConvertToCustomHistogramName(
  53                 kCustomizableHistogram_));
  54 }
  55
  56 TEST_F(RenderThreadImplUnittest, CustomHistogramsForTwoRenderViews) {
  57   // First there is only one view.
  58   histogram_customizer_.RenderViewNavigatedToHost("mail.google.com", 1);
  59   // Second view created and it navigates to the same host -> we can have a
  60   // custom diagram.
  61   histogram_customizer_.RenderViewNavigatedToHost("mail.google.com", 2);
  62   EXPECT_EQ(std::string(kCustomizableHistogram_) + ".gmail",
  63             histogram_customizer_.ConvertToCustomHistogramName(
  64                 kCustomizableHistogram_));
  65   EXPECT_EQ(kNormalHistogram_,
  66             histogram_customizer_.ConvertToCustomHistogramName(
  67                 kNormalHistogram_));
  68   // Now the views diverge (one of them navigates to a different host) -> no
  69   // custom diagram.
  70   histogram_customizer_.RenderViewNavigatedToHost("docs.google.com", 2);
  71   EXPECT_EQ(kCustomizableHistogram_,
  72             histogram_customizer_.ConvertToCustomHistogramName(
  73                 kCustomizableHistogram_));
  74   // After this point, there will never be a custom diagram again, even if the
  75   // view navigated back to the common host.
  76   histogram_customizer_.RenderViewNavigatedToHost("mail.google.com", 2);
  77   EXPECT_EQ(kCustomizableHistogram_,
  78             histogram_customizer_.ConvertToCustomHistogramName(
  79                 kCustomizableHistogram_));
  80 }
  81
  82 }  // namespace content