ui/app_list/cocoa/app_list_view_controller_unittest.mm

   1 // Copyright 2013 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/mac/scoped_nsobject.h"
   6 #import "testing/gtest_mac.h"
   7 #import "ui/app_list/cocoa/app_list_view_controller.h"
   8 #import "ui/app_list/cocoa/apps_grid_controller.h"
   9 #import "ui/app_list/cocoa/test/apps_grid_controller_test_helper.h"
  10 #include "ui/app_list/test/app_list_test_model.h"
  11 #include "ui/app_list/test/app_list_test_view_delegate.h"
  12
  13 namespace app_list {
  14 namespace test {
  15
  16 class AppListViewControllerTest : public AppsGridControllerTestHelper {
  17  public:
  18   AppListViewControllerTest() {}
  19
  20   virtual void SetUp() OVERRIDE {
  21     app_list_view_controller_.reset([[AppListViewController alloc] init]);
  22     scoped_ptr<AppListTestViewDelegate> delegate(new AppListTestViewDelegate);
  23     [app_list_view_controller_
  24         setDelegate:delegate.PassAs<app_list::AppListViewDelegate>()];
  25     SetUpWithGridController([app_list_view_controller_ appsGridController]);
  26     [[test_window() contentView] addSubview:[app_list_view_controller_ view]];
  27   }
  28
  29   virtual void TearDown() OVERRIDE {
  30     [app_list_view_controller_
  31         setDelegate:scoped_ptr<app_list::AppListViewDelegate>()];
  32     app_list_view_controller_.reset();
  33     AppsGridControllerTestHelper::TearDown();
  34   }
  35
  36   void ReplaceTestModel(int item_count) {
  37     [app_list_view_controller_
  38         setDelegate:scoped_ptr<app_list::AppListViewDelegate>()];
  39     scoped_ptr<AppListTestViewDelegate> delegate(new AppListTestViewDelegate);
  40     delegate->ReplaceTestModel(item_count);
  41     [app_list_view_controller_
  42         setDelegate:delegate.PassAs<app_list::AppListViewDelegate>()];
  43   }
  44
  45   AppListTestViewDelegate* delegate() {
  46     return static_cast<AppListTestViewDelegate*>(
  47         [app_list_view_controller_ delegate]);
  48   }
  49
  50   AppListTestModel* model() {
  51     return delegate()->GetTestModel();
  52   }
  53
  54  protected:
  55   base::scoped_nsobject<AppListViewController> app_list_view_controller_;
  56
  57  private:
  58   DISALLOW_COPY_AND_ASSIGN(AppListViewControllerTest);
  59 };
  60
  61 TEST_VIEW(AppListViewControllerTest, [app_list_view_controller_ view]);
  62
  63 // Test that adding and removing pages updates the pager.
  64 TEST_F(AppListViewControllerTest, PagerSegmentCounts) {
  65   NSSegmentedControl* pager = [app_list_view_controller_ pagerControl];
  66   EXPECT_EQ(1, [pager segmentCount]);
  67
  68   ReplaceTestModel(kItemsPerPage * 2);
  69   EXPECT_EQ(2, [pager segmentCount]);
  70   model()->PopulateApps(1);
  71   EXPECT_EQ(3, [pager segmentCount]);
  72
  73   ReplaceTestModel(1);
  74   EXPECT_EQ(1, [pager segmentCount]);
  75 }
  76
  77 // Test that clicking the pager changes pages.
  78 TEST_F(AppListViewControllerTest, PagerChangingPage) {
  79   NSSegmentedControl* pager = [app_list_view_controller_ pagerControl];
  80   ReplaceTestModel(kItemsPerPage * 3);
  81   EXPECT_EQ(3, [pager segmentCount]);
  82
  83   EXPECT_EQ(0, [pager selectedSegment]);
  84   EXPECT_EQ(0u, [apps_grid_controller_ visiblePage]);
  85   EXPECT_EQ(1.0, [apps_grid_controller_ visiblePortionOfPage:0]);
  86   EXPECT_EQ(0.0, [apps_grid_controller_ visiblePortionOfPage:1]);
  87
  88   // Emulate a click on the second segment to navigate to the second page.
  89   [pager setSelectedSegment:1];
  90   [[pager target] performSelector:[pager action]
  91                        withObject:pager];
  92
  93   EXPECT_EQ(1u, [apps_grid_controller_ visiblePage]);
  94   EXPECT_EQ(1, [pager selectedSegment]);
  95   EXPECT_EQ(0.0, [apps_grid_controller_ visiblePortionOfPage:0]);
  96   EXPECT_EQ(1.0, [apps_grid_controller_ visiblePortionOfPage:1]);
  97
  98   // Replace with a single page model, and ensure we go back to the first page.
  99   ReplaceTestModel(1);
 100   EXPECT_EQ(0u, [apps_grid_controller_ visiblePage]);
 101   EXPECT_EQ(0, [pager selectedSegment]);
 102   EXPECT_EQ(1, [pager segmentCount]);
 103   EXPECT_EQ(1.0, [apps_grid_controller_ visiblePortionOfPage:0]);
 104 }
 105
 106 }  // namespace test
 107 }  // namespace app_list