1 // Copyright (c) 2011 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 <algorithm> 6 #include <string> 7 8 #include "base/string_number_conversions.h" 9 #include "chrome/browser/tabs/tab_strip_selection_model.h" 10 #include "testing/gtest/include/gtest/gtest.h" 11 12 typedef testing::Test TabStripSelectionModelTest; 13 14 // Returns the state of the selection model as a string. The format is: 15 // 'active=X anchor=X selection=X X X...'. 16 static std::string StateAsString(const TabStripSelectionModel& model) { 17 std::string result = "active=" + base::IntToString(model.active()) + 18 " anchor=" + base::IntToString(model.anchor()) + 19 " selection="; 20 const TabStripSelectionModel::SelectedIndices& selection( 21 model.selected_indices()); 22 for (size_t i = 0; i < selection.size(); ++i) { 23 if (i != 0) 24 result += " "; 25 result += base::IntToString(selection[i]); 26 } 27 return result; 28 } 29 30 TEST_F(TabStripSelectionModelTest, InitialState) { 31 TabStripSelectionModel model; 32 EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); 33 EXPECT_TRUE(model.empty()); 34 } 35 36 TEST_F(TabStripSelectionModelTest, SetSelectedIndex) { 37 TabStripSelectionModel model; 38 model.SetSelectedIndex(2); 39 EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); 40 EXPECT_FALSE(model.empty()); 41 } 42 43 TEST_F(TabStripSelectionModelTest, IncrementFrom) { 44 TabStripSelectionModel model; 45 model.SetSelectedIndex(1); 46 model.IncrementFrom(1); 47 EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); 48 49 // Increment from 4. This shouldn't effect the selection as its past the 50 // end of the selection. 51 model.IncrementFrom(4); 52 EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); 53 } 54 55 TEST_F(TabStripSelectionModelTest, DecrementFrom) { 56 TabStripSelectionModel model; 57 model.SetSelectedIndex(2); 58 model.DecrementFrom(0); 59 EXPECT_EQ("active=1 anchor=1 selection=1", StateAsString(model)); 60 61 // Shift down from 1. As the selection as the index being removed, this should 62 // clear the selection. 63 model.DecrementFrom(1); 64 EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); 65 66 // Reset the selection to 2, and shift down from 4. This shouldn't do 67 // anything. 68 model.SetSelectedIndex(2); 69 model.DecrementFrom(4); 70 EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); 71 } 72 73 TEST_F(TabStripSelectionModelTest, IsSelected) { 74 TabStripSelectionModel model; 75 model.SetSelectedIndex(2); 76 EXPECT_FALSE(model.IsSelected(0)); 77 EXPECT_TRUE(model.IsSelected(2)); 78 } 79 80 TEST_F(TabStripSelectionModelTest, AddIndexToSelected) { 81 TabStripSelectionModel model; 82 model.AddIndexToSelection(2); 83 EXPECT_EQ("active=-1 anchor=-1 selection=2", StateAsString(model)); 84 85 model.AddIndexToSelection(4); 86 EXPECT_EQ("active=-1 anchor=-1 selection=2 4", StateAsString(model)); 87 } 88 89 TEST_F(TabStripSelectionModelTest, RemoveIndexFromSelection) { 90 TabStripSelectionModel model; 91 model.SetSelectedIndex(2); 92 model.AddIndexToSelection(4); 93 EXPECT_EQ("active=2 anchor=2 selection=2 4", StateAsString(model)); 94 95 model.RemoveIndexFromSelection(4); 96 EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); 97 98 model.RemoveIndexFromSelection(2); 99 EXPECT_EQ("active=2 anchor=2 selection=", StateAsString(model)); 100 } 101 102 TEST_F(TabStripSelectionModelTest, Clear) { 103 TabStripSelectionModel model; 104 model.SetSelectedIndex(2); 105 106 model.Clear(); 107 EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); 108 } 109 110 TEST_F(TabStripSelectionModelTest, MoveToLeft) { 111 TabStripSelectionModel model; 112 model.SetSelectedIndex(0); 113 model.AddIndexToSelection(4); 114 model.AddIndexToSelection(10); 115 model.set_anchor(4); 116 model.set_active(4); 117 model.Move(4, 0); 118 EXPECT_EQ("active=0 anchor=0 selection=0 1 10", StateAsString(model)); 119 } 120 121 TEST_F(TabStripSelectionModelTest, MoveToRight) { 122 TabStripSelectionModel model; 123 model.SetSelectedIndex(0); 124 model.AddIndexToSelection(4); 125 model.AddIndexToSelection(10); 126 model.set_anchor(0); 127 model.set_active(0); 128 model.Move(0, 3); 129 EXPECT_EQ("active=3 anchor=3 selection=3 4 10", StateAsString(model)); 130 } 131 132 TEST_F(TabStripSelectionModelTest, Copy) { 133 TabStripSelectionModel model; 134 model.SetSelectedIndex(0); 135 model.AddIndexToSelection(4); 136 model.AddIndexToSelection(10); 137 EXPECT_EQ("active=0 anchor=0 selection=0 4 10", StateAsString(model)); 138 TabStripSelectionModel model2; 139 model2.Copy(model); 140 EXPECT_EQ("active=0 anchor=0 selection=0 4 10", StateAsString(model2)); 141 } 142 143 TEST_F(TabStripSelectionModelTest, AddSelectionFromAnchorTo) { 144 TabStripSelectionModel model; 145 model.SetSelectedIndex(2); 146 147 model.AddSelectionFromAnchorTo(4); 148 EXPECT_EQ("active=4 anchor=2 selection=2 3 4", StateAsString(model)); 149 150 model.AddSelectionFromAnchorTo(0); 151 EXPECT_EQ("active=0 anchor=2 selection=0 1 2 3 4", StateAsString(model)); 152 } 153