dmazzoni | 83ba5c8 | 2015-04-14 07:11:51 | [diff] [blame] | 1 | // 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 | |
| 15 | namespace content { |
| 16 | |
| 17 | namespace { |
| 18 | |
| 19 | class 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 | |
| 43 | class SnapshotAXTreeBrowserTest : public ContentBrowserTest { |
| 44 | public: |
| 45 | SnapshotAXTreeBrowserTest() {} |
| 46 | ~SnapshotAXTreeBrowserTest() override {} |
| 47 | }; |
| 48 | |
| 49 | IN_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 |