| // Copyright (c) 2012 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 "ui/base/models/list_selection_model.h" |
| |
| #include <stddef.h> |
| |
| #include <algorithm> |
| #include <string> |
| |
| #include "base/strings/string_number_conversions.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace ui { |
| |
| typedef testing::Test ListSelectionModelTest; |
| |
| // Returns the state of the selection model as a string. The format is: |
| // 'active=X anchor=X selection=X X X...'. |
| static std::string StateAsString(const ListSelectionModel& model) { |
| std::string result = "active=" + base::IntToString(model.active()) + |
| " anchor=" + base::IntToString(model.anchor()) + |
| " selection="; |
| const ListSelectionModel::SelectedIndices& selection( |
| model.selected_indices()); |
| for (size_t i = 0; i < selection.size(); ++i) { |
| if (i != 0) |
| result += " "; |
| result += base::IntToString(selection[i]); |
| } |
| return result; |
| } |
| |
| TEST_F(ListSelectionModelTest, InitialState) { |
| ListSelectionModel model; |
| EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); |
| EXPECT_TRUE(model.empty()); |
| } |
| |
| TEST_F(ListSelectionModelTest, SetSelectedIndex) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(2); |
| EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); |
| EXPECT_FALSE(model.empty()); |
| } |
| |
| TEST_F(ListSelectionModelTest, SetSelectedIndexToEmpty) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(-1); |
| EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); |
| EXPECT_TRUE(model.empty()); |
| } |
| |
| TEST_F(ListSelectionModelTest, IncrementFrom) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(1); |
| model.IncrementFrom(1); |
| EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); |
| |
| // Increment from 4. This shouldn't effect the selection as its past the |
| // end of the selection. |
| model.IncrementFrom(4); |
| EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); |
| } |
| |
| TEST_F(ListSelectionModelTest, DecrementFrom) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(2); |
| model.DecrementFrom(0); |
| EXPECT_EQ("active=1 anchor=1 selection=1", StateAsString(model)); |
| |
| // Shift down from 1. As the selection as the index being removed, this should |
| // clear the selection. |
| model.DecrementFrom(1); |
| EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); |
| |
| // Reset the selection to 2, and shift down from 4. This shouldn't do |
| // anything. |
| model.SetSelectedIndex(2); |
| model.DecrementFrom(4); |
| EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); |
| } |
| |
| TEST_F(ListSelectionModelTest, IsSelected) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(2); |
| EXPECT_FALSE(model.IsSelected(0)); |
| EXPECT_TRUE(model.IsSelected(2)); |
| } |
| |
| TEST_F(ListSelectionModelTest, AddIndexToSelected) { |
| ListSelectionModel model; |
| model.AddIndexToSelection(2); |
| EXPECT_EQ("active=-1 anchor=-1 selection=2", StateAsString(model)); |
| |
| model.AddIndexToSelection(4); |
| EXPECT_EQ("active=-1 anchor=-1 selection=2 4", StateAsString(model)); |
| } |
| |
| TEST_F(ListSelectionModelTest, RemoveIndexFromSelection) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(2); |
| model.AddIndexToSelection(4); |
| EXPECT_EQ("active=2 anchor=2 selection=2 4", StateAsString(model)); |
| |
| model.RemoveIndexFromSelection(4); |
| EXPECT_EQ("active=2 anchor=2 selection=2", StateAsString(model)); |
| |
| model.RemoveIndexFromSelection(2); |
| EXPECT_EQ("active=2 anchor=2 selection=", StateAsString(model)); |
| } |
| |
| TEST_F(ListSelectionModelTest, SetSelectionFromAnchorTo) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(2); |
| model.SetSelectionFromAnchorTo(7); |
| EXPECT_EQ("active=7 anchor=2 selection=2 3 4 5 6 7", StateAsString(model)); |
| |
| model.Clear(); |
| model.SetSelectedIndex(7); |
| model.SetSelectionFromAnchorTo(2); |
| EXPECT_EQ("active=2 anchor=7 selection=2 3 4 5 6 7", StateAsString(model)); |
| |
| model.Clear(); |
| model.SetSelectionFromAnchorTo(7); |
| EXPECT_EQ("active=7 anchor=7 selection=7", StateAsString(model)); |
| } |
| |
| TEST_F(ListSelectionModelTest, Clear) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(2); |
| |
| model.Clear(); |
| EXPECT_EQ("active=-1 anchor=-1 selection=", StateAsString(model)); |
| } |
| |
| TEST_F(ListSelectionModelTest, MoveToLeft) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(0); |
| model.AddIndexToSelection(4); |
| model.AddIndexToSelection(10); |
| model.set_anchor(4); |
| model.set_active(4); |
| model.Move(4, 0); |
| EXPECT_EQ("active=0 anchor=0 selection=0 1 10", StateAsString(model)); |
| } |
| |
| TEST_F(ListSelectionModelTest, MoveToRight) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(0); |
| model.AddIndexToSelection(4); |
| model.AddIndexToSelection(10); |
| model.set_anchor(0); |
| model.set_active(0); |
| model.Move(0, 3); |
| EXPECT_EQ("active=3 anchor=3 selection=3 4 10", StateAsString(model)); |
| } |
| |
| TEST_F(ListSelectionModelTest, Copy) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(0); |
| model.AddIndexToSelection(4); |
| model.AddIndexToSelection(10); |
| EXPECT_EQ("active=0 anchor=0 selection=0 4 10", StateAsString(model)); |
| ListSelectionModel model2; |
| model2.Copy(model); |
| EXPECT_EQ("active=0 anchor=0 selection=0 4 10", StateAsString(model2)); |
| } |
| |
| TEST_F(ListSelectionModelTest, AddSelectionFromAnchorTo) { |
| ListSelectionModel model; |
| model.SetSelectedIndex(2); |
| |
| model.AddSelectionFromAnchorTo(4); |
| EXPECT_EQ("active=4 anchor=2 selection=2 3 4", StateAsString(model)); |
| |
| model.AddSelectionFromAnchorTo(0); |
| EXPECT_EQ("active=0 anchor=2 selection=0 1 2 3 4", StateAsString(model)); |
| } |
| |
| TEST_F(ListSelectionModelTest, Equals) { |
| ListSelectionModel model1; |
| model1.SetSelectedIndex(0); |
| model1.AddSelectionFromAnchorTo(4); |
| |
| ListSelectionModel model2; |
| model2.SetSelectedIndex(0); |
| model2.AddSelectionFromAnchorTo(4); |
| |
| EXPECT_TRUE(model1.Equals(model2)); |
| EXPECT_TRUE(model2.Equals(model1)); |
| |
| model2.SetSelectedIndex(0); |
| EXPECT_FALSE(model1.Equals(model2)); |
| EXPECT_FALSE(model2.Equals(model1)); |
| } |
| |
| } // namespace ui |