1// Copyright 2013 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/bind.h"
6#include "base/guid.h"
7#include "base/strings/utf_string_conversions.h"
8#include "base/win/message_window.h"
9#include "testing/gmock/include/gmock/gmock.h"
10#include "testing/gtest/include/gtest/gtest.h"
11
12namespace base {
13
14namespace {
15
16bool HandleMessage(
17    UINT message, WPARAM wparam, LPARAM lparam, LRESULT* result) {
18  // Return |wparam| as the result of WM_USER message.
19  if (message == WM_USER) {
20    *result = wparam;
21    return true;
22  }
23
24  return false;
25}
26
27}  // namespace
28
29// Checks that a window can be created.
30TEST(MessageWindowTest, Create) {
31  win::MessageWindow window;
32  EXPECT_TRUE(window.Create(base::Bind(&HandleMessage)));
33}
34
35// Checks that a named window can be created.
36TEST(MessageWindowTest, CreateNamed) {
37  win::MessageWindow window;
38  EXPECT_TRUE(window.CreateNamed(base::Bind(&HandleMessage),
39              UTF8ToUTF16("test_message_window")));
40}
41
42// Verifies that the created window can receive messages.
43TEST(MessageWindowTest, SendMessage) {
44  win::MessageWindow window;
45  EXPECT_TRUE(window.Create(base::Bind(&HandleMessage)));
46
47  EXPECT_EQ(SendMessage(window.hwnd(), WM_USER, 100, 0), 100);
48}
49
50// Verifies that a named window can be found by name.
51TEST(MessageWindowTest, FindWindow) {
52  string16 name = UTF8ToUTF16(base::GenerateGUID());
53  win::MessageWindow window;
54  EXPECT_TRUE(window.CreateNamed(base::Bind(&HandleMessage), name));
55
56  HWND hwnd = win::MessageWindow::FindWindow(name);
57  EXPECT_TRUE(hwnd != NULL);
58  EXPECT_EQ(SendMessage(hwnd, WM_USER, 200, 0), 200);
59}
60
61}  // namespace base
62