Creates AXPosition to uniquely identify a position in the accessibility tree

ui/accessibility/ax_node_position_unittest.cc

+// Copyright 2016 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 <stdint.h>
+
+#include <memory>
+#include <vector>
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/accessibility/ax_enums.h"
+#include "ui/accessibility/ax_node.h"
+#include "ui/accessibility/ax_node_data.h"
+#include "ui/accessibility/ax_node_position.h"
+#include "ui/accessibility/ax_serializable_tree.h"
+#include "ui/accessibility/ax_tree_serializer.h"
+#include "ui/accessibility/ax_tree_update.h"
+
+namespace ui {
+
+namespace {
+
+class AXTreeTest : public testing::Test {
+ public:
+  const char* TEXT_VALUE = "Line 1\nLine 2";
+
+  AXTreeTest();
+  ~AXTreeTest() override;
+
+ private:
+  void SetUp() override;
+
+  AXTree tree_;
+  DISALLOW_COPY_AND_ASSIGN(AXTreeTest);
+};
+
+AXTreeTest::AXTreeTest() {}
+
+AXTreeTest::~AXTreeTest() {}
+
+void AXTreeTest::SetUp() {
+  AXNodeData root;
+  root.id = 1;
+  root.role = AX_ROLE_DIALOG;
+  root.state = 1 << AX_STATE_FOCUSABLE;
+  root.location = gfx::RectF(0, 0, 800, 600);
+  root.child_ids.push_back(2);
+  root.child_ids.push_back(3);
+  root.child_ids.push_back(4);
+  root.child_ids.push_back(5);
+  root.child_ids.push_back(6);
+  root.child_ids.push_back(7);
+  root.child_ids.push_back(8);
+  root.child_ids.push_back(9);
+
+  AXNodeData button;
+  button.id = 2;
+  button.role = AX_ROLE_BUTTON;
+  button.state = 0;
+  button.location = gfx::RectF(20, 20, 200, 30);
+
+  AXNodeData checkbox;
+  checkbox.id = 3;
+  checkbox.role = AX_ROLE_CHECK_BOX;
+  checkbox.state = 0;
+  checkbox.location = gfx::RectF(20, 50, 200, 30);
+
+  ui::AXNodeData text_field;
+  text_field.id = 4;
+  text_field.role = ui::AX_ROLE_TEXT_FIELD;
+  text_field.state = 1 << ui::AX_STATE_EDITABLE;
+  text_field.SetValue(TEXT_VALUE);
+  std::vector<int32_t> line_start_offsets;
+  line_start_offsets.push_back(15);
+  text_field.AddIntListAttribute(ui::AX_ATTR_LINE_BREAKS, line_start_offsets);
+  text_field.child_ids.push_back(5);
+  text_field.child_ids.push_back(7);
+  text_field.child_ids.push_back(8);
+
+  ui::AXNodeData static_text1;
+  static_text1.id = 5;
+  static_text1.role = ui::AX_ROLE_STATIC_TEXT;
+  static_text1.state = 1 << ui::AX_STATE_EDITABLE;
+  static_text1.SetName(Line 1);
+  static_text1.child_ids.push_back(6);
+
+  ui::AXNodeData inline_box1;
+  inline_box1.id = 6;
+  inline_box1.role = ui::AX_ROLE_INLINE_TEXT_BOX;
+  inline_box1.state = 1 << ui::AX_STATE_EDITABLE;
+  inline_box1.SetName(Line 1);
+  std::vector<int32_t> word_starts{0, 5};
+  inline_box1.AddIntListAttribute(ui::AX_ATTR_WORD_STARTS, word_starts);
+  std::vector<int32_t> word_ends1{3, 6};
+  inline_box1.AddIntListAttribute(ui::AX_ATTR_WORD_ENDS, word_ends);
+
+  ui::AXNodeData line_break;
+  line_break.id = 7;
+  line_break.role = ui::AX_ROLE_LINE_BREAK;
+  line_break.state = 1 << ui::AX_STATE_EDITABLE;
+  line_break.SetName("\n");
+
+  ui::AXNodeData static_text2;
+  static_text2.id = 8;
+  static_text2.role = ui::AX_ROLE_STATIC_TEXT;
+  static_text2.state = 1 << ui::AX_STATE_EDITABLE;
+  static_text2.SetName(Line 2);
+  static_text2.child_ids.push_back(9);
+
+  ui::AXNodeData inline_box2;
+  inline_box2.id = 9;
+  inline_box2.role = ui::AX_ROLE_INLINE_TEXT_BOX;
+  inline_box2.state = 1 << ui::AX_STATE_EDITABLE;
+  inline_box2.SetName(Line 2);
+  inline_box2.AddIntListAttribute(ui::AX_ATTR_WORD_STARTS, word_starts);
+  inline_box2.AddIntListAttribute(ui::AX_ATTR_WORD_STARTS, word_ends);
+
+  AXTreeUpdate initial_state;
+  initial_state.root_id = 1;
+  initial_state.nodes.push_back(root);
+  initial_state.nodes.push_back(button);
+  initial_state.nodes.push_back(checkbox);
+  initial_state.nodes.push_back(text_field);
+  initial_state.nodes.push_back(static_text1);
+  initial_state.nodes.push_back(inline_box1);
+  initial_state.nodes.push_back(line_break);
+  initial_state.nodes.push_back(static_text2);
+  initial_state.nodes.push_back(inline_box2);
+  initial_state.has_tree_data = true;
+  initial_state.tree_data.title = "Dialog title";
+  AXSerializableTree src_tree(initial_state);
+
+  std::unique_ptr<AXTreeSource<const TestAXNode*, AXNodeData, AXTreeData>>
+      tree_source(src_tree.CreateTreeSource());
+  AXTreeSerializer<const TestAXNode*, AXNodeData, AXTreeData> serializer(
+      tree_source.get());
+  AXTreeUpdate update;
+  serializer.SerializeChanges(src_tree.root(), &update);
+  ASSERT_TRUE(tree_.Unserialize(update));
+}
+
+TEST(AXTreeTest, ) {}
+
+}  // namespace ui