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fl_view_accessible_test.cc
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1// Copyright 2013 The Flutter 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// Included first as it collides with the X11 headers.
6#include "gtest/gtest.h"
7
8#include "flutter/shell/platform/linux/fl_view_accessible.h"
9#include "flutter/shell/platform/linux/public/flutter_linux/fl_engine.h"
10#include "flutter/shell/platform/linux/testing/fl_test.h"
11#include "flutter/shell/platform/linux/testing/mock_signal_handler.h"
12
13TEST(FlViewAccessibleTest, BuildTree) {
14 g_autoptr(FlEngine) engine = make_mock_engine();
15 g_autoptr(FlViewAccessible) accessible = FL_VIEW_ACCESSIBLE(
16 g_object_new(fl_view_accessible_get_type(), "engine", engine, nullptr));
17
18 int32_t children[] = {111, 222};
19 FlutterSemanticsNode2 root_node = {
20 .id = 0,
21 .label = "root",
22 .child_count = 2,
23 .children_in_traversal_order = children,
24 };
25 FlutterSemanticsNode2 child1_node = {.id = 111, .label = "child 1"};
26 FlutterSemanticsNode2 child2_node = {.id = 222, .label = "child 2"};
27 FlutterSemanticsNode2* nodes[3] = {&root_node, &child1_node, &child2_node};
28 FlutterSemanticsUpdate2 update = {.node_count = 3, .nodes = nodes};
29 fl_view_accessible_handle_update_semantics(accessible, &update);
30
31 AtkObject* root_object =
32 atk_object_ref_accessible_child(ATK_OBJECT(accessible), 0);
33 EXPECT_STREQ(atk_object_get_name(root_object), "root");
34 EXPECT_EQ(atk_object_get_index_in_parent(root_object), 0);
35 EXPECT_EQ(atk_object_get_n_accessible_children(root_object), 2);
36
37 AtkObject* child1_object = atk_object_ref_accessible_child(root_object, 0);
38 EXPECT_STREQ(atk_object_get_name(child1_object), "child 1");
39 EXPECT_EQ(atk_object_get_parent(child1_object), root_object);
40 EXPECT_EQ(atk_object_get_index_in_parent(child1_object), 0);
41 EXPECT_EQ(atk_object_get_n_accessible_children(child1_object), 0);
42
43 AtkObject* child2_object = atk_object_ref_accessible_child(root_object, 1);
44 EXPECT_STREQ(atk_object_get_name(child2_object), "child 2");
45 EXPECT_EQ(atk_object_get_parent(child2_object), root_object);
46 EXPECT_EQ(atk_object_get_index_in_parent(child2_object), 1);
47 EXPECT_EQ(atk_object_get_n_accessible_children(child2_object), 0);
48}
49
50TEST(FlViewAccessibleTest, AddRemoveChildren) {
51 g_autoptr(FlEngine) engine = make_mock_engine();
52 g_autoptr(FlViewAccessible) accessible = FL_VIEW_ACCESSIBLE(
53 g_object_new(fl_view_accessible_get_type(), "engine", engine, nullptr));
54
55 FlutterSemanticsNode2 root_node = {
56 .id = 0,
57 .label = "root",
58 .child_count = 0,
59 };
60 FlutterSemanticsNode2* nodes[1] = {&root_node};
61 FlutterSemanticsUpdate2 update = {.node_count = 1, .nodes = nodes};
62 fl_view_accessible_handle_update_semantics(accessible, &update);
63
64 AtkObject* root_object =
65 atk_object_ref_accessible_child(ATK_OBJECT(accessible), 0);
66 EXPECT_EQ(atk_object_get_n_accessible_children(root_object), 0);
67
68 // add child1
69 AtkObject* child1_object = nullptr;
70 FlutterSemanticsNode2 child1_node = {.id = 111, .label = "child 1"};
71 {
72 flutter::testing::MockSignalHandler2<gint, AtkObject*> child1_added(
73 root_object, "children-changed::add");
74 EXPECT_SIGNAL2(child1_added, ::testing::Eq(0), ::testing::A<AtkObject*>())
75 .WillOnce(::testing::SaveArg<1>(&child1_object));
76
77 int32_t children[] = {111};
78 root_node.child_count = 1;
79 root_node.children_in_traversal_order = children;
80 FlutterSemanticsNode2* nodes[2] = {&root_node, &child1_node};
81 FlutterSemanticsUpdate2 update = {.node_count = 2, .nodes = nodes};
82 fl_view_accessible_handle_update_semantics(accessible, &update);
83 }
84
85 EXPECT_EQ(atk_object_get_n_accessible_children(root_object), 1);
86 EXPECT_EQ(atk_object_ref_accessible_child(root_object, 0), child1_object);
87
88 EXPECT_STREQ(atk_object_get_name(child1_object), "child 1");
89 EXPECT_EQ(atk_object_get_parent(child1_object), root_object);
90 EXPECT_EQ(atk_object_get_index_in_parent(child1_object), 0);
91 EXPECT_EQ(atk_object_get_n_accessible_children(child1_object), 0);
92
93 // add child2
94 AtkObject* child2_object = nullptr;
95 FlutterSemanticsNode2 child2_node = {.id = 222, .label = "child 2"};
96 {
97 flutter::testing::MockSignalHandler2<gint, AtkObject*> child2_added(
98 root_object, "children-changed::add");
99 EXPECT_SIGNAL2(child2_added, ::testing::Eq(1), ::testing::A<AtkObject*>())
100 .WillOnce(::testing::SaveArg<1>(&child2_object));
101
102 int32_t children[] = {111, 222};
103 root_node.child_count = 2;
104 root_node.children_in_traversal_order = children;
105 FlutterSemanticsNode2* nodes[3] = {&root_node, &child1_node, &child2_node};
106 FlutterSemanticsUpdate2 update = {.node_count = 3, .nodes = nodes};
107 fl_view_accessible_handle_update_semantics(accessible, &update);
108 }
109
110 EXPECT_EQ(atk_object_get_n_accessible_children(root_object), 2);
111 EXPECT_EQ(atk_object_ref_accessible_child(root_object, 0), child1_object);
112 EXPECT_EQ(atk_object_ref_accessible_child(root_object, 1), child2_object);
113
114 EXPECT_STREQ(atk_object_get_name(child1_object), "child 1");
115 EXPECT_EQ(atk_object_get_parent(child1_object), root_object);
116 EXPECT_EQ(atk_object_get_index_in_parent(child1_object), 0);
117 EXPECT_EQ(atk_object_get_n_accessible_children(child1_object), 0);
118
119 EXPECT_STREQ(atk_object_get_name(child2_object), "child 2");
120 EXPECT_EQ(atk_object_get_parent(child2_object), root_object);
121 EXPECT_EQ(atk_object_get_index_in_parent(child2_object), 1);
122 EXPECT_EQ(atk_object_get_n_accessible_children(child2_object), 0);
123
124 // remove child1
125 {
126 flutter::testing::MockSignalHandler2<gint, AtkObject*> child1_removed(
127 root_object, "children-changed::remove");
128 EXPECT_SIGNAL2(child1_removed, ::testing::Eq(0),
129 ::testing::Eq(child1_object));
130
131 const int32_t children[] = {222};
132 root_node.child_count = 1;
133 root_node.children_in_traversal_order = children;
134 FlutterSemanticsNode2* nodes[3] = {&root_node, &child2_node};
135 FlutterSemanticsUpdate2 update = {.node_count = 2, .nodes = nodes};
136 fl_view_accessible_handle_update_semantics(accessible, &update);
137 }
138
139 EXPECT_EQ(atk_object_get_n_accessible_children(root_object), 1);
140 EXPECT_EQ(atk_object_ref_accessible_child(root_object, 0), child2_object);
141
142 EXPECT_STREQ(atk_object_get_name(child2_object), "child 2");
143 EXPECT_EQ(atk_object_get_parent(child2_object), root_object);
144 EXPECT_EQ(atk_object_get_index_in_parent(child2_object), 0);
145 EXPECT_EQ(atk_object_get_n_accessible_children(child2_object), 0);
146
147 // remove child2
148 {
149 flutter::testing::MockSignalHandler2<gint, AtkObject*> child2_removed(
150 root_object, "children-changed::remove");
151 EXPECT_SIGNAL2(child2_removed, ::testing::Eq(0),
152 ::testing::Eq(child2_object));
153
154 root_node.child_count = 0;
155 FlutterSemanticsNode2* nodes[1] = {&root_node};
156 FlutterSemanticsUpdate2 update = {.node_count = 1, .nodes = nodes};
157 fl_view_accessible_handle_update_semantics(accessible, &update);
158 }
159
160 EXPECT_EQ(atk_object_get_n_accessible_children(root_object), 0);
161}
TEST
#define TEST(S, s, D, expected)
Definition FitsInTest.cpp:15
engine
FlutterEngine engine
Definition main.cc:68
make_mock_engine
static FlEngine * make_mock_engine()
Definition fl_event_channel_test.cc:24
fl_view_accessible_handle_update_semantics
void fl_view_accessible_handle_update_semantics(FlViewAccessible *self, const FlutterSemanticsUpdate2 *update)
Definition fl_view_accessible.cc:158
EXPECT_SIGNAL2
#define EXPECT_SIGNAL2(mock, a1, a2)
Definition mock_signal_handler.h:32
FlutterSemanticsNode2::children_in_traversal_order
const int32_t * children_in_traversal_order
Array of child node IDs in traversal order. Has length child_count.
Definition embedder.h:1383
FlutterSemanticsNode2::id
int32_t id
The unique identifier for this node.
Definition embedder.h:1335
FlutterSemanticsNode2::child_count
size_t child_count
The number of children this node has.
Definition embedder.h:1381
FlutterSemanticsUpdate2
A batch of updates to semantics nodes and custom actions.
Definition embedder.h:1502
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