Add DumpAccessibilityEvents test framework.

content/browser/accessibility/dump_accessibility_events_browsertest.cc

+// Copyright (c) 2014 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 <set>
+#include <string>
+#include <vector>
+
+#include "base/strings/string16.h"
+#include "base/strings/string_util.h"
+#include "base/strings/utf_string_conversions.h"
+#include "content/browser/accessibility/accessibility_event_recorder.h"
+#include "content/browser/accessibility/accessibility_tree_formatter.h"
+#include "content/browser/accessibility/browser_accessibility.h"
+#include "content/browser/accessibility/browser_accessibility_manager.h"
+#include "content/browser/accessibility/dump_accessibility_browsertest_base.h"
+#include "content/browser/web_contents/web_contents_impl.h"
+#include "content/shell/browser/shell.h"
+#include "content/test/accessibility_browser_test_utils.h"
+
+namespace content {
+
+typedef AccessibilityTreeFormatter::Filter Filter;
+
+//

[David Tseng, 2014/12/16 16:53:05]

?

[dmazzoni, 2014/12/16 23:26:32]

Done.

+class DumpAccessibilityEventsTest : public DumpAccessibilityTestBase {
+ public:
+  void AddDefaultFilters(std::vector<Filter>* filters) override {
+  }
+
+  std::vector<std::string> Dump() override;
+
+  void AdditionalErrorLogging() override;

[David Tseng, 2014/12/16 16:53:05]

nit: document these

[dmazzoni, 2014/12/16 23:26:32]

These are overrides; see the base class.

+
+ private:
+  base::string16 initial_tree_;
+  base::string16 final_tree_;
+};
+
+std::vector<std::string> DumpAccessibilityEventsTest::Dump() {
+  WebContentsImpl* web_contents = static_cast<WebContentsImpl*>(
+      shell()->web_contents());
+  scoped_ptr<AccessibilityEventRecorder> event_recorder(
+      AccessibilityEventRecorder::Create(
+          web_contents->GetRootBrowserAccessibilityManager()));
+
+  initial_tree_ = DumpUnfilteredAccessibilityTreeAsString();
+
+  scoped_ptr<AccessibilityNotificationWaiter> waiter;
+  waiter.reset(new AccessibilityNotificationWaiter(
+      shell(), AccessibilityModeComplete, ui::AX_EVENT_NONE));
+
+  // Execute the "go" command in the script.
+  web_contents->GetMainFrame()->ExecuteJavaScript(
+      base::ASCIIToUTF16("go()"));
+
+  // Wait for at least one accessibility event.
+  waiter->WaitForNotification();
+
+  // Now wait for a hover.
+  waiter.reset(new AccessibilityNotificationWaiter(
+      shell(), AccessibilityModeComplete, ui::AX_EVENT_HOVER));
+  BrowserAccessibilityManager* manager =
+      web_contents->GetRootBrowserAccessibilityManager();
+  manager->delegate()->AccessibilityHitTest(gfx::Point(0, 0));
+  waiter->WaitForNotification();
+
+  final_tree_ = DumpUnfilteredAccessibilityTreeAsString();
+
+  std::vector<std::string> event_logs = event_recorder->GetEventLogs();
+  std::vector<std::string> result;
+  for (size_t i = 0; i < event_logs.size(); ++i) {
+    if (AccessibilityTreeFormatter::MatchesFilters(
+            filters_, base::UTF8ToUTF16(event_logs[i]), true)) {
+      result.push_back(event_logs[i]);
+    }
+  }
+  return result;
+}
+
+void DumpAccessibilityEventsTest::AdditionalErrorLogging() {
+  printf("\n");
+  printf("Initial accessibility tree (after load complete):\n");
+  printf("%s\n", base::UTF16ToUTF8(initial_tree_).c_str());
+  printf("\n");
+  printf("Final accessibility tree after events fired:\n");
+  printf("%s\n", base::UTF16ToUTF8(final_tree_).c_str());
+  printf("\n");
+}
+
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityEventsTest,
+                       AccessibilityEventsCheckedStateChanged) {
+  RunTest(FILE_PATH_LITERAL("events-checked-state-changed.html"));
+}
+
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityEventsTest,
+                       AccessibilityEventsInputTypeTextValueChanged) {
+  RunTest(FILE_PATH_LITERAL("events-input-type-text-value-changed.html"));
+}
+
+}  // namespace content