1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
// Copyright 2013 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 "base/memory/scoped_ptr.h"
#include "base/strings/string_number_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/accessibility/ax_node.h"
#include "ui/accessibility/ax_serializable_tree.h"
#include "ui/accessibility/ax_tree.h"
#include "ui/accessibility/ax_tree_serializer.h"
namespace ui {
TEST(AXTreeTest, SerializeSimpleAXTree) {
AXNodeData root;
root.id = 1;
root.role = AX_ROLE_ROOT_WEB_AREA;
root.child_ids.push_back(2);
root.child_ids.push_back(3);
AXNodeData button;
button.id = 2;
button.role = AX_ROLE_BUTTON;
button.state = 0;
AXNodeData checkbox;
checkbox.id = 3;
checkbox.role = AX_ROLE_CHECK_BOX;
AXTreeUpdate initial_state;
initial_state.nodes.push_back(root);
initial_state.nodes.push_back(button);
initial_state.nodes.push_back(checkbox);
AXSerializableTree src_tree(initial_state);
scoped_ptr<AXTreeSource<AXNode> > tree_source(
src_tree.CreateTreeSource());
AXTreeSerializer<AXNode> serializer(tree_source.get());
AXTreeUpdate update;
serializer.SerializeChanges(src_tree.GetRoot(), &update);
AXTree dst_tree;
ASSERT_TRUE(dst_tree.Unserialize(update));
AXNode* root_node = dst_tree.GetRoot();
ASSERT_TRUE(root_node != NULL);
EXPECT_EQ(root.id, root_node->id());
EXPECT_EQ(root.role, root_node->data().role);
ASSERT_EQ(2, root_node->child_count());
AXNode* button_node = root_node->ChildAtIndex(0);
EXPECT_EQ(button.id, button_node->id());
EXPECT_EQ(button.role, button_node->data().role);
AXNode* checkbox_node = root_node->ChildAtIndex(1);
EXPECT_EQ(checkbox.id, checkbox_node->id());
EXPECT_EQ(checkbox.role, checkbox_node->data().role);
}
TEST(AXTreeTest, DeleteUnknownSubtreeFails) {
AXNodeData root;
root.id = 1;
root.role = AX_ROLE_ROOT_WEB_AREA;
AXTreeUpdate initial_state;
initial_state.nodes.push_back(root);
AXTree tree(initial_state);
// This should fail because we're asking it to delete
// a subtree rooted at id=2, which doesn't exist.
AXTreeUpdate update;
update.node_id_to_clear = 2;
update.nodes.resize(1);
update.nodes[0].id = 1;
update.nodes[0].id = AX_ROLE_ROOT_WEB_AREA;
EXPECT_FALSE(tree.Unserialize(update));
ASSERT_EQ("Bad node_id_to_clear: 2", tree.error());
}
TEST(AXTreeTest, LeaveOrphanedDeletedSubtreeFails) {
AXTreeUpdate initial_state;
initial_state.nodes.resize(3);
initial_state.nodes[0].id = 1;
initial_state.nodes[0].role = AX_ROLE_ROOT_WEB_AREA;
initial_state.nodes[0].child_ids.push_back(2);
initial_state.nodes[0].child_ids.push_back(3);
initial_state.nodes[1].id = 2;
initial_state.nodes[2].id = 3;
AXTree tree(initial_state);
// This should fail because we delete a subtree rooted at id=2
// but never update it.
AXTreeUpdate update;
update.node_id_to_clear = 2;
update.nodes.resize(1);
update.nodes[0].id = 3;
EXPECT_FALSE(tree.Unserialize(update));
ASSERT_EQ("Nodes left pending by the update: 2", tree.error());
}
TEST(AXTreeTest, LeaveOrphanedNewChildFails) {
AXTreeUpdate initial_state;
initial_state.nodes.resize(1);
initial_state.nodes[0].id = 1;
initial_state.nodes[0].role = AX_ROLE_ROOT_WEB_AREA;
AXTree tree(initial_state);
// This should fail because we add a new child to the root node
// but never update it.
AXTreeUpdate update;
update.nodes.resize(1);
update.nodes[0].id = 1;
update.nodes[0].role = AX_ROLE_ROOT_WEB_AREA;
update.nodes[0].child_ids.push_back(2);
EXPECT_FALSE(tree.Unserialize(update));
ASSERT_EQ("Nodes left pending by the update: 2", tree.error());
}
TEST(AXTreeTest, DuplicateChildIdFails) {
AXTreeUpdate initial_state;
initial_state.nodes.resize(1);
initial_state.nodes[0].id = 1;
initial_state.nodes[0].role = AX_ROLE_ROOT_WEB_AREA;
AXTree tree(initial_state);
// This should fail because a child id appears twice.
AXTreeUpdate update;
update.nodes.resize(2);
update.nodes[0].id = 1;
update.nodes[0].role = AX_ROLE_ROOT_WEB_AREA;
update.nodes[0].child_ids.push_back(2);
update.nodes[0].child_ids.push_back(2);
update.nodes[1].id = 2;
EXPECT_FALSE(tree.Unserialize(update));
ASSERT_EQ("Node 1 has duplicate child id 2", tree.error());
}
TEST(AXTreeTest, InvalidReparentingFails) {
AXTreeUpdate initial_state;
initial_state.nodes.resize(3);
initial_state.nodes[0].id = 1;
initial_state.nodes[0].role = AX_ROLE_ROOT_WEB_AREA;
initial_state.nodes[0].child_ids.push_back(2);
initial_state.nodes[1].id = 2;
initial_state.nodes[1].child_ids.push_back(3);
initial_state.nodes[2].id = 3;
AXTree tree(initial_state);
// This should fail because node 3 is reparented from node 2 to node 1
// without deleting node 1's subtree first.
AXTreeUpdate update;
update.nodes.resize(3);
update.nodes[0].id = 1;
update.nodes[0].role = AX_ROLE_ROOT_WEB_AREA;
update.nodes[0].child_ids.push_back(3);
update.nodes[0].child_ids.push_back(2);
update.nodes[1].id = 2;
update.nodes[2].id = 3;
EXPECT_FALSE(tree.Unserialize(update));
ASSERT_EQ("Node 3 reparented from 2 to 1", tree.error());
}
} // namespace ui
|
