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 "ui/base/models/list_selection_model.h" 6 7 #include <algorithm> 8 #include <string> 9 10 #include "base/strings/string_number_conversions.h" 11 #include "testing/gtest/include/gtest/gtest.h" 12 13 namespace ui { 14 15 typedef testing::Test ListSelectionModelTest; 16 17 // Returns the state of the selection model as a string. The format is: 18 // 'active=X anchor=X selection=X X X...'. 19 static std::string StateAsString(const ListSelectionModel& model) { 20 std::string result = "active=" + base::IntToString(model.active()) + 21 " anchor=" + base::IntToString(model.anchor()) + 22 " selection="; 23 const ListSelectionModel::SelectedIndices& selection( 24 model.selected_indices()); 25 for (size_t i = 0; i < selection.size(); ++i) { 26 if (i != 0) 27 result += " "; 28 result += base::IntToString(selection[i]); 29 } 30 return result; 31 } 32 33 TEST_F(ListSelectionModelTest, InitialState) { 34 ListSelectionModel model; 35 EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); 36 EXPECT_TRUE(model.empty()); 37 } 38 39 TEST_F(ListSelectionModelTest, SetSelectedIndex) { 40 ListSelectionModel model; 41 model.SetSelectedIndex(2); 42 EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); 43 EXPECT_FALSE(model.empty()); 44 } 45 46 TEST_F(ListSelectionModelTest, SetSelectedIndexToEmpty) { 47 ListSelectionModel model; 48 model.SetSelectedIndex(-1); 49 EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); 50 EXPECT_TRUE(model.empty()); 51 } 52 53 TEST_F(ListSelectionModelTest, IncrementFrom) { 54 ListSelectionModel model; 55 model.SetSelectedIndex(1); 56 model.IncrementFrom(1); 57 EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); 58 59 // Increment from 4. This shouldn't effect the selection as its past the 60 // end of the selection. 61 model.IncrementFrom(4); 62 EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); 63 } 64 65 TEST_F(ListSelectionModelTest, DecrementFrom) { 66 ListSelectionModel model; 67 model.SetSelectedIndex(2); 68 model.DecrementFrom(0); 69 EXPECT_EQ("active=1 anchor=1 selection=1", StateAsString(model)); 70 71 // Shift down from 1. As the selection as the index being removed, this should 72 // clear the selection. 73 model.DecrementFrom(1); 74 EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); 75 76 // Reset the selection to 2, and shift down from 4. This shouldn't do 77 // anything. 78 model.SetSelectedIndex(2); 79 model.DecrementFrom(4); 80 EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); 81 } 82 83 TEST_F(ListSelectionModelTest, IsSelected) { 84 ListSelectionModel model; 85 model.SetSelectedIndex(2); 86 EXPECT_FALSE(model.IsSelected(0)); 87 EXPECT_TRUE(model.IsSelected(2)); 88 } 89 90 TEST_F(ListSelectionModelTest, AddIndexToSelected) { 91 ListSelectionModel model; 92 model.AddIndexToSelection(2); 93 EXPECT_EQ("active=-1 anchor=-1 selection=2", StateAsString(model)); 94 95 model.AddIndexToSelection(4); 96 EXPECT_EQ("active=-1 anchor=-1 selection=2 4", StateAsString(model)); 97 } 98 99 TEST_F(ListSelectionModelTest, RemoveIndexFromSelection) { 100 ListSelectionModel model; 101 model.SetSelectedIndex(2); 102 model.AddIndexToSelection(4); 103 EXPECT_EQ("active=2 anchor=2 selection=2 4", StateAsString(model)); 104 105 model.RemoveIndexFromSelection(4); 106 EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); 107 108 model.RemoveIndexFromSelection(2); 109 EXPECT_EQ("active=2 anchor=2 selection=", StateAsString(model)); 110 } 111 112 TEST_F(ListSelectionModelTest, SetSelectionFromAnchorTo) { 113 ListSelectionModel model; 114 model.SetSelectedIndex(2); 115 model.SetSelectionFromAnchorTo(7); 116 EXPECT_EQ("active=7 anchor=2 selection=2 3 4 5 6 7", StateAsString(model)); 117 118 model.Clear(); 119 model.SetSelectedIndex(7); 120 model.SetSelectionFromAnchorTo(2); 121 EXPECT_EQ("active=2 anchor=7 selection=2 3 4 5 6 7", StateAsString(model)); 122 123 model.Clear(); 124 model.SetSelectionFromAnchorTo(7); 125 EXPECT_EQ("active=7 anchor=7 selection=7", StateAsString(model)); 126 } 127 128 TEST_F(ListSelectionModelTest, Clear) { 129 ListSelectionModel model; 130 model.SetSelectedIndex(2); 131 132 model.Clear(); 133 EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); 134 } 135 136 TEST_F(ListSelectionModelTest, MoveToLeft) { 137 ListSelectionModel model; 138 model.SetSelectedIndex(0); 139 model.AddIndexToSelection(4); 140 model.AddIndexToSelection(10); 141 model.set_anchor(4); 142 model.set_active(4); 143 model.Move(4, 0); 144 EXPECT_EQ("active=0 anchor=0 selection=0 1 10", StateAsString(model)); 145 } 146 147 TEST_F(ListSelectionModelTest, MoveToRight) { 148 ListSelectionModel model; 149 model.SetSelectedIndex(0); 150 model.AddIndexToSelection(4); 151 model.AddIndexToSelection(10); 152 model.set_anchor(0); 153 model.set_active(0); 154 model.Move(0, 3); 155 EXPECT_EQ("active=3 anchor=3 selection=3 4 10", StateAsString(model)); 156 } 157 158 TEST_F(ListSelectionModelTest, Copy) { 159 ListSelectionModel model; 160 model.SetSelectedIndex(0); 161 model.AddIndexToSelection(4); 162 model.AddIndexToSelection(10); 163 EXPECT_EQ("active=0 anchor=0 selection=0 4 10", StateAsString(model)); 164 ListSelectionModel model2; 165 model2.Copy(model); 166 EXPECT_EQ("active=0 anchor=0 selection=0 4 10", StateAsString(model2)); 167 } 168 169 TEST_F(ListSelectionModelTest, AddSelectionFromAnchorTo) { 170 ListSelectionModel model; 171 model.SetSelectedIndex(2); 172 173 model.AddSelectionFromAnchorTo(4); 174 EXPECT_EQ("active=4 anchor=2 selection=2 3 4", StateAsString(model)); 175 176 model.AddSelectionFromAnchorTo(0); 177 EXPECT_EQ("active=0 anchor=2 selection=0 1 2 3 4", StateAsString(model)); 178 } 179 180 TEST_F(ListSelectionModelTest, Equals) { 181 ListSelectionModel model1; 182 model1.SetSelectedIndex(0); 183 model1.AddSelectionFromAnchorTo(4); 184 185 ListSelectionModel model2; 186 model2.SetSelectedIndex(0); 187 model2.AddSelectionFromAnchorTo(4); 188 189 EXPECT_TRUE(model1.Equals(model2)); 190 EXPECT_TRUE(model2.Equals(model1)); 191 192 model2.SetSelectedIndex(0); 193 EXPECT_FALSE(model1.Equals(model2)); 194 EXPECT_FALSE(model2.Equals(model1)); 195 } 196 197 } // namespace ui 198
