Add per-tab "JavaScript enabled" preference.

chrome/browser/ui/tab_contents/per_tab_prefs_tab_helper_unittest.cc

+// Copyright (c) 2011 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/common/pref_names.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/ui/tab_contents/per_tab_prefs_tab_helper.h"
+#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
+#include "chrome/browser/ui/tab_contents/test_tab_contents_wrapper.h"
+#include "content/browser/tab_contents/test_tab_contents.h"
+#include "content/test/test_browser_thread.h"
+
+using content::BrowserThread;
+
+class PerTabPrefsTabHelperTest : public TabContentsWrapperTestHarness {
+ public:
+  PerTabPrefsTabHelperTest()
+      : TabContentsWrapperTestHarness(),
+        ui_thread_(BrowserThread::UI, &message_loop_) {}
+
+  virtual ~PerTabPrefsTabHelperTest() {}
+
+  TabContentsWrapper* contents_wrapper2() {
+    return contents_wrapper2_.get();
+  }
+
+  void SetContents2(TestTabContents* contents) {
+    contents_wrapper2_.reset(
+        contents ? new TabContentsWrapper(contents) : NULL);
+  }
+
+ protected:
+  virtual void SetUp() OVERRIDE {
+    TabContentsWrapperTestHarness::SetUp();
+    SetContents2(CreateTestTabContents());
+  }
+
+  virtual void TearDown() OVERRIDE {
+    contents_wrapper2_.reset();
+    TabContentsWrapperTestHarness::TearDown();
+  }
+
+ private:
+  content::TestBrowserThread ui_thread_;
+  scoped_ptr<TabContentsWrapper> contents_wrapper2_;
+
+  DISALLOW_COPY_AND_ASSIGN(PerTabPrefsTabHelperTest);
+};
+
+TEST_F(PerTabPrefsTabHelperTest, PerTabJavaScriptEnabled) {
+  const char* key = prefs::kWebKitJavascriptEnabled;
+  PrefService* prefs1 = contents_wrapper()->per_tab_prefs_tab_helper()->prefs();
+  PrefService* prefs2 =
+      contents_wrapper2()->per_tab_prefs_tab_helper()->prefs();
+  const bool initial_value = prefs1->GetBoolean(key);
+  EXPECT_EQ(initial_value, prefs2->GetBoolean(key));
+
+  prefs1->SetBoolean(key, !initial_value);
+  EXPECT_EQ(!initial_value, prefs1->GetBoolean(key));
+  EXPECT_EQ(initial_value, prefs2->GetBoolean(key));
+
+  prefs1->SetBoolean(key, initial_value);
+  EXPECT_EQ(initial_value, prefs1->GetBoolean(key));
+  EXPECT_EQ(initial_value, prefs2->GetBoolean(key));
+
+  prefs2->SetBoolean(key, !initial_value);
+  EXPECT_EQ(initial_value, prefs1->GetBoolean(key));
+  EXPECT_EQ(!initial_value, prefs2->GetBoolean(key));
+}