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      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/message_loop/message_loop.h"
      6 #include "base/prefs/pref_service.h"
      7 #include "chrome/browser/ui/browser.h"
      8 #include "chrome/browser/ui/browser_finder.h"
      9 #include "chrome/browser/ui/zoom/zoom_controller.h"
     10 #include "chrome/browser/ui/zoom/zoom_observer.h"
     11 #include "chrome/common/pref_names.h"
     12 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
     13 #include "chrome/test/base/testing_profile.h"
     14 #include "content/public/browser/browser_thread.h"
     15 #include "content/public/browser/host_zoom_map.h"
     16 #include "content/public/browser/navigation_details.h"
     17 #include "content/public/common/frame_navigate_params.h"
     18 #include "content/public/test/test_utils.h"
     19 #include "testing/gmock/include/gmock/gmock.h"
     20 #include "testing/gtest/include/gtest/gtest.h"
     21 
     22 class TestZoomObserver : public ZoomObserver {
     23  public:
     24   MOCK_METHOD2(OnZoomChanged, void(content::WebContents*, bool));
     25 };
     26 
     27 class ZoomControllerTest : public ChromeRenderViewHostTestHarness {
     28  public:
     29   virtual void SetUp() OVERRIDE {
     30     ChromeRenderViewHostTestHarness::SetUp();
     31     zoom_controller_.reset(new ZoomController(web_contents()));
     32     zoom_controller_->set_observer(&zoom_observer_);
     33   }
     34 
     35   virtual void TearDown() OVERRIDE {
     36     zoom_controller_.reset();
     37     ChromeRenderViewHostTestHarness::TearDown();
     38   }
     39 
     40  protected:
     41   scoped_ptr<ZoomController> zoom_controller_;
     42   TestZoomObserver zoom_observer_;
     43 };
     44 
     45 TEST_F(ZoomControllerTest, DidNavigateMainFrame) {
     46   EXPECT_CALL(zoom_observer_, OnZoomChanged(web_contents(), false)).Times(1);
     47   zoom_controller_->DidNavigateMainFrame(content::LoadCommittedDetails(),
     48                                          content::FrameNavigateParams());
     49 }
     50 
     51 TEST_F(ZoomControllerTest, OnPreferenceChanged) {
     52   EXPECT_CALL(zoom_observer_, OnZoomChanged(web_contents(), false)).Times(1);
     53   profile()->GetPrefs()->SetDouble(prefs::kDefaultZoomLevel, 110.0f);
     54 }
     55 
     56 TEST_F(ZoomControllerTest, Observe) {
     57   EXPECT_CALL(zoom_observer_, OnZoomChanged(web_contents(), false)).Times(1);
     58 
     59   content::HostZoomMap* host_zoom_map =
     60       content::HostZoomMap::GetForBrowserContext(
     61           web_contents()->GetBrowserContext());
     62 
     63   host_zoom_map->SetZoomLevelForHost(std::string(), 110.0f);
     64 }
     65