Reimplement web content accessibility by caching in browser process

chrome/common/render_messages_unittest.cc

+// Copyright (c) 2010 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/scoped_ptr.h"
+#include "base/string16.h"
+#include "base/values.h"
+#include "chrome/common/render_messages.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(RenderMessagesUnittest, WebAccessibility) {
+  // Test a simple case.
+  webkit_glue::WebAccessibility input;
+  input.id = 123;
+  input.name = ASCIIToUTF16("name");
+  input.value = ASCIIToUTF16("value");
+  input.action = ASCIIToUTF16("action");
+  input.description = ASCIIToUTF16("description");
+  input.help = ASCIIToUTF16("help");
+  input.shortcut = ASCIIToUTF16("shortcut");
+  input.role = webkit_glue::WebAccessibility::ROLE_CHECKBUTTON;
+  input.state =
+      (1 << webkit_glue::WebAccessibility::STATE_CHECKED) |
+      (1 << webkit_glue::WebAccessibility::STATE_FOCUSED);
+  input.location = WebKit::WebRect(11, 22, 333, 444);
+
+  IPC::Message msg(1, 2, IPC::Message::PRIORITY_NORMAL);
+  IPC::WriteParam(&msg, input);
+
+  webkit_glue::WebAccessibility output;
+  void* iter = NULL;
+  EXPECT_TRUE(IPC::ReadParam(&msg, &iter, &output));
+  EXPECT_EQ(input.id, output.id);
+  EXPECT_EQ(input.name, output.name);
+  EXPECT_EQ(input.value, output.value);
+  EXPECT_EQ(input.action, output.action);
+  EXPECT_EQ(input.description, output.description);
+  EXPECT_EQ(input.help, output.help);
+  EXPECT_EQ(input.shortcut, output.shortcut);
+  EXPECT_EQ(input.role, output.role);
+  EXPECT_EQ(input.state, output.state);
+  EXPECT_EQ(input.location, output.location);
+  EXPECT_EQ(input.children.size(), output.children.size());
+
+  // Test a corrupt case.
+  IPC::Message bad_msg(1, 2, IPC::Message::PRIORITY_NORMAL);
+  bad_msg.WriteInt(99);
+  iter = NULL;
+  EXPECT_FALSE(IPC::ReadParam(&bad_msg, &iter, &output));
+
+  // Test a recursive case.
+  webkit_glue::WebAccessibility outer;
+  outer.id = 1000;
+  outer.name = ASCIIToUTF16("outer_name");
+  outer.role = webkit_glue::WebAccessibility::ROLE_GROUPING;
+  outer.state = 0;
+  outer.location = WebKit::WebRect(0, 0, 1000, 1000);
+  webkit_glue::WebAccessibility inner1;
+  inner1.id = 1001;
+  inner1.name = ASCIIToUTF16("inner1_name");
+  inner1.role = webkit_glue::WebAccessibility::ROLE_RADIOBUTTON;
+  inner1.state =
+      (1 << webkit_glue::WebAccessibility::STATE_CHECKED) |
+      (1 << webkit_glue::WebAccessibility::STATE_FOCUSED);
+  inner1.location = WebKit::WebRect(10, 10, 900, 400);
+  outer.children.push_back(inner1);
+  webkit_glue::WebAccessibility inner2;
+  inner2.id = 1002;
+  inner2.name = ASCIIToUTF16("inner2_name");
+  inner2.role = webkit_glue::WebAccessibility::ROLE_RADIOBUTTON;
+  inner2.state = (1 << webkit_glue::WebAccessibility::STATE_CHECKED);
+  inner2.location = WebKit::WebRect(10, 500, 900, 400);
+  outer.children.push_back(inner2);
+
+  IPC::Message msg2(1, 2, IPC::Message::PRIORITY_NORMAL);
+  IPC::WriteParam(&msg2, outer);
+
+  void* iter2 = NULL;
+  EXPECT_TRUE(IPC::ReadParam(&msg2, &iter2, &output));
+  EXPECT_EQ(outer.id, output.id);
+  EXPECT_EQ(outer.name, output.name);
+  EXPECT_EQ(outer.role, output.role);
+  EXPECT_EQ(outer.state, output.state);
+  EXPECT_EQ(outer.location, output.location);
+  EXPECT_EQ(outer.children.size(), output.children.size());
+  EXPECT_EQ(inner1.id, output.children[0].id);
+  EXPECT_EQ(inner1.name, output.children[0].name);
+  EXPECT_EQ(inner1.role, output.children[0].role);
+  EXPECT_EQ(inner1.state, output.children[0].state);
+  EXPECT_EQ(inner1.location, output.children[0].location);
+  EXPECT_EQ(inner2.id, output.children[1].id);
+  EXPECT_EQ(inner2.name, output.children[1].name);
+  EXPECT_EQ(inner2.role, output.children[1].role);
+  EXPECT_EQ(inner2.state, output.children[1].state);
+  EXPECT_EQ(inner2.location, output.children[1].location);
+}