blob: af82404c1766b2d6a744a119f8fc5b6d322a4d9c [file] [log] [blame]
dmazzoni83ba5c82015-04-14 07:11:511// Copyright 2015 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 "base/callback.h"
6#include "content/browser/web_contents/web_contents_impl.h"
7#include "content/public/test/content_browser_test.h"
8#include "content/public/test/content_browser_test_utils.h"
9#include "content/public/test/test_utils.h"
10#include "content/shell/browser/shell.h"
11#include "testing/gtest/include/gtest/gtest.h"
12#include "ui/accessibility/ax_node.h"
13#include "ui/accessibility/ax_tree.h"
14
15namespace content {
16
17namespace {
18
19class AXTreeSnapshotWaiter {
20 public:
21 AXTreeSnapshotWaiter() : loop_runner_(new MessageLoopRunner()) {}
22
23 void Wait() {
24 loop_runner_->Run();
25 }
26
27 const ui::AXTreeUpdate& snapshot() const { return snapshot_; }
28
29 void ReceiveSnapshot(const ui::AXTreeUpdate& snapshot) {
30 snapshot_ = snapshot;
31 loop_runner_->Quit();
32 }
33
34 private:
35 ui::AXTreeUpdate snapshot_;
36 scoped_refptr<MessageLoopRunner> loop_runner_;
37
38 DISALLOW_COPY_AND_ASSIGN(AXTreeSnapshotWaiter);
39};
40
41} // namespace
42
43class SnapshotAXTreeBrowserTest : public ContentBrowserTest {
44 public:
45 SnapshotAXTreeBrowserTest() {}
46 ~SnapshotAXTreeBrowserTest() override {}
47};
48
49IN_PROC_BROWSER_TEST_F(SnapshotAXTreeBrowserTest,
50 SnapshotAccessibilityTreeFromWebContents) {
51 GURL url("data:text/html,<button>Click</button>");
52 NavigateToURL(shell(), url);
53
54 WebContentsImpl* web_contents =
55 static_cast<WebContentsImpl*>(shell()->web_contents());
56
57 AXTreeSnapshotWaiter waiter;
58 web_contents->RequestAXTreeSnapshot(
59 base::Bind(&AXTreeSnapshotWaiter::ReceiveSnapshot,
60 base::Unretained(&waiter)));
61 waiter.Wait();
62
63 // Dump the whole tree if one of the assertions below fails
64 // to aid in debugging why it failed.
65 SCOPED_TRACE(waiter.snapshot().ToString());
66
67 ui::AXTree tree(waiter.snapshot());
68 ui::AXNode* root = tree.root();
69 ASSERT_NE(nullptr, root);
70 ASSERT_EQ(ui::AX_ROLE_ROOT_WEB_AREA, root->data().role);
71 ui::AXNode* group = root->ChildAtIndex(0);
72 ASSERT_EQ(ui::AX_ROLE_GROUP, group->data().role);
73 ui::AXNode* button = group->ChildAtIndex(0);
74 ASSERT_EQ(ui::AX_ROLE_BUTTON, button->data().role);
75}
76
77} // namespace content