content/browser/web_contents/web_contents_user_data_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/public/browser/web_contents_user_data.h"
   6
   7 #include "base/memory/scoped_ptr.h"
   8 #include "content/public/browser/web_contents.h"
   9 #include "content/public/test/test_renderer_host.h"
  10 #include "content/public/test/web_contents_tester.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12
  13 namespace content {
  14
  15 class WebContentsAttachedClass1
  16     : public WebContentsUserData<WebContentsAttachedClass1> {
  17  public:
  18   virtual ~WebContentsAttachedClass1() {}
  19  private:
  20   explicit WebContentsAttachedClass1(WebContents* contents) {}
  21   friend class WebContentsUserData<WebContentsAttachedClass1>;
  22 };
  23
  24 class WebContentsAttachedClass2
  25     : public WebContentsUserData<WebContentsAttachedClass2> {
  26  public:
  27   virtual ~WebContentsAttachedClass2() {}
  28  private:
  29   explicit WebContentsAttachedClass2(WebContents* contents) {}
  30   friend class WebContentsUserData<WebContentsAttachedClass2>;
  31 };
  32
  33 DEFINE_WEB_CONTENTS_USER_DATA_KEY(WebContentsAttachedClass1);
  34 DEFINE_WEB_CONTENTS_USER_DATA_KEY(WebContentsAttachedClass2);
  35
  36 typedef RenderViewHostTestHarness WebContentsUserDataTest;
  37
  38 TEST_F(WebContentsUserDataTest, OneInstanceTwoAttachments) {
  39   WebContents* contents = web_contents();
  40   WebContentsAttachedClass1* class1 =
  41       WebContentsAttachedClass1::FromWebContents(contents);
  42   ASSERT_EQ(NULL, class1);
  43   WebContentsAttachedClass2* class2 =
  44       WebContentsAttachedClass2::FromWebContents(contents);
  45   ASSERT_EQ(NULL, class2);
  46
  47   WebContentsAttachedClass1::CreateForWebContents(contents);
  48   class1 = WebContentsAttachedClass1::FromWebContents(contents);
  49   ASSERT_TRUE(class1 != NULL);
  50   class2 = WebContentsAttachedClass2::FromWebContents(contents);
  51   ASSERT_EQ(NULL, class2);
  52
  53   WebContentsAttachedClass2::CreateForWebContents(contents);
  54   WebContentsAttachedClass1* class1again =
  55       WebContentsAttachedClass1::FromWebContents(contents);
  56   ASSERT_TRUE(class1again != NULL);
  57   class2 = WebContentsAttachedClass2::FromWebContents(contents);
  58   ASSERT_TRUE(class2 != NULL);
  59   ASSERT_EQ(class1, class1again);
  60   ASSERT_NE(static_cast<void*>(class1), static_cast<void*>(class2));
  61 }
  62
  63 TEST_F(WebContentsUserDataTest, TwoInstancesOneAttachment) {
  64   WebContents* contents1 = web_contents();
  65   scoped_ptr<WebContents> contents2(
  66       WebContentsTester::CreateTestWebContents(browser_context(), NULL));
  67
  68   WebContentsAttachedClass1* one_class =
  69       WebContentsAttachedClass1::FromWebContents(contents1);
  70   ASSERT_EQ(NULL, one_class);
  71   WebContentsAttachedClass1* two_class =
  72       WebContentsAttachedClass1::FromWebContents(contents2.get());
  73   ASSERT_EQ(NULL, two_class);
  74
  75   WebContentsAttachedClass1::CreateForWebContents(contents1);
  76   one_class = WebContentsAttachedClass1::FromWebContents(contents1);
  77   ASSERT_TRUE(one_class != NULL);
  78   two_class = WebContentsAttachedClass1::FromWebContents(contents2.get());
  79   ASSERT_EQ(NULL, two_class);
  80
  81   WebContentsAttachedClass1::CreateForWebContents(contents2.get());
  82   WebContentsAttachedClass1* one_class_again =
  83       WebContentsAttachedClass1::FromWebContents(contents1);
  84   ASSERT_TRUE(one_class_again != NULL);
  85   two_class = WebContentsAttachedClass1::FromWebContents(contents2.get());
  86   ASSERT_TRUE(two_class != NULL);
  87   ASSERT_EQ(one_class, one_class_again);
  88   ASSERT_NE(one_class, two_class);
  89 }
  90
  91 TEST_F(WebContentsUserDataTest, Idempotence) {
  92   WebContents* contents = web_contents();
  93   WebContentsAttachedClass1* clazz =
  94       WebContentsAttachedClass1::FromWebContents(contents);
  95   ASSERT_EQ(NULL, clazz);
  96
  97   WebContentsAttachedClass1::CreateForWebContents(contents);
  98   clazz = WebContentsAttachedClass1::FromWebContents(contents);
  99   ASSERT_TRUE(clazz != NULL);
 100
 101   WebContentsAttachedClass1::CreateForWebContents(contents);
 102   WebContentsAttachedClass1* class_again =
 103       WebContentsAttachedClass1::FromWebContents(contents);
 104   ASSERT_TRUE(class_again != NULL);
 105   ASSERT_EQ(clazz, class_again);
 106 }
 107
 108 }  // namespace content