Add multi-process notification class.

chrome/common/multi_process_notification_unittest.cc

Index: chrome/common/multi_process_notification_unittest.cc
diff --git a/chrome/common/multi_process_notification_unittest.cc b/chrome/common/multi_process_notification_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..debee923e50f194f4ddf24e7d93a65e249cd2e38
--- /dev/null
+++ b/chrome/common/multi_process_notification_unittest.cc
@@ -0,0 +1,221 @@
+// Copyright (c) 2011 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 "chrome/common/multi_process_notification.h"
+
+#include "base/basictypes.h"
+#include "base/environment.h"
+#include "base/logging.h"
+#include "base/message_loop.h"
+#include "base/test/multiprocess_test.h"
+#include "base/test/test_timeouts.h"
+#include "base/time.h"
+#include "testing/multiprocess_func_list.h"
+
+#if defined(OS_MACOSX)
+// TODO(dmaclach): Remove defined(OS_MACOSX) once
+//                 MultiProcessNotification is implemented on Win/Linux.
+
+namespace {
+
+const char kStartedNotificationName[] = "MultiProcessTestStartedNotification";
+const char kQuitNotificationName[] = "MultiProcessTestQuitNotification";
+
+void SpinRunLoop(int milliseconds) {
+  MessageLoopForIO *loop = MessageLoopForIO::current();
+    // Post a quit task so that this loop eventually ends and we don't hang

[Mark Mentovai, 2011/01/06 17:59:09]

What’s with this indentation? Bring it back to be flush where it belongs, but
put a blank line before this comment to break it up from the preceding line.

[dmac, 2011/01/06 18:22:37]

Stupid Xcode.

+    // in the case of a bad test. Usually, the run loop will quit sooner than
+    // that because all tests use a MultiProcessNotificationTestQuit which quits
+    // the current run loop when it gets a notification.
+  loop->PostDelayedTask(FROM_HERE, new MessageLoop::QuitTask(), milliseconds);
+  loop->Run();
+}
+
+int MultiProcessNotificationMain(multi_process_notification::Domain domain) {
+  MessageLoop io_loop(MessageLoop::TYPE_IO);
+  multi_process_notification::PerformTaskOnNotification quitter(
+      new MessageLoop::QuitTask());
+  multi_process_notification::Listener listener(
+      kQuitNotificationName, domain, &quitter);
+  EXPECT_TRUE(listener.Start());
+  EXPECT_TRUE(multi_process_notification::Post(kStartedNotificationName,
+                                               domain));
+  SpinRunLoop(TestTimeouts::action_max_timeout_ms());
+  EXPECT_TRUE(quitter.WasNotificationCalled());
+  return 0;
+}
+
+}  // namespace
+
+class MultiProcessNotificationTest : public base::MultiProcessTest {
+ public:
+  MultiProcessNotificationTest();
+
+  void PostNotificationTest(multi_process_notification::Domain domain);
+  void CrossPostNotificationTest(multi_process_notification::Domain domain);
+
+ private:
+  MessageLoop io_loop_;
+};
+
+MultiProcessNotificationTest::MultiProcessNotificationTest()
+    : io_loop_(MessageLoop::TYPE_IO) {
+}
+
+void MultiProcessNotificationTest::PostNotificationTest(
+    multi_process_notification::Domain domain) {
+  multi_process_notification::PerformTaskOnNotification process_started(
+      new MessageLoop::QuitTask());
+  multi_process_notification::Listener listener(kStartedNotificationName,
+                                                domain,
+                                                &process_started);
+  ASSERT_TRUE(listener.Start());
+  std::string process_name;
+  switch (domain) {
+    case multi_process_notification::ProfileDomain:
+      process_name = "MultiProcessProfileNotificationMain";
+      break;
+
+    case multi_process_notification::UserDomain:
+      process_name = "MultiProcessUserNotificationMain";
+      break;
+
+    case multi_process_notification::SystemDomain:
+      process_name = "MultiProcessSystemNotificationMain";
+      break;
+  }
+  base::ProcessHandle handle = SpawnChild(process_name, false);
+  ASSERT_TRUE(handle);
+  SpinRunLoop(TestTimeouts::action_max_timeout_ms());
+  ASSERT_TRUE(process_started.WasNotificationCalled());
+  ASSERT_TRUE(multi_process_notification::Post(kQuitNotificationName, domain));
+  int exit_code = 0;
+  EXPECT_TRUE(base::WaitForExitCodeWithTimeout(
+      handle, &exit_code, TestTimeouts::action_max_timeout_ms()));
+}
+
+void MultiProcessNotificationTest::CrossPostNotificationTest(
+    multi_process_notification::Domain domain) {
+  // Check to make sure notifications sent to user domain aren't picked up
+  // by system domain listeners and vice versa.
+  std::string local_notification("QuitLocalNotification");
+  std::string final_notification("FinalQuitLocalNotification");
+  multi_process_notification::PerformTaskOnNotification profile_quitter(
+      new MessageLoop::QuitTask());
+  multi_process_notification::PerformTaskOnNotification user_quitter(
+      new MessageLoop::QuitTask());
+  multi_process_notification::PerformTaskOnNotification system_quitter(
+      new MessageLoop::QuitTask());
+  multi_process_notification::PerformTaskOnNotification final_quitter(
+      new MessageLoop::QuitTask());
+  multi_process_notification::Listener profile_listener(
+      local_notification, multi_process_notification::ProfileDomain,
+      &profile_quitter);
+  multi_process_notification::Listener user_listener(
+      local_notification, multi_process_notification::UserDomain,
+      &user_quitter);
+  multi_process_notification::Listener system_listener(
+      local_notification, multi_process_notification::SystemDomain,
+      &system_quitter);
+  multi_process_notification::Listener final_listener(
+      final_notification, multi_process_notification::UserDomain,
+      &final_quitter);
+
+  ASSERT_TRUE(profile_listener.Start());
+  ASSERT_TRUE(user_listener.Start());
+  ASSERT_TRUE(system_listener.Start());
+  ASSERT_TRUE(multi_process_notification::Post(local_notification, domain));
+  SpinRunLoop(TestTimeouts::action_timeout_ms());
+
+  // Now send out a final_notification to queue up a notification
+  // after the local_notification and make sure that all listeners have had a
+  // chance to process local_notification before we check to see if they
+  // were called.
+  ASSERT_TRUE(final_listener.Start());
+  ASSERT_TRUE(multi_process_notification::Post(
+      final_notification, multi_process_notification::UserDomain));
+  SpinRunLoop(TestTimeouts::action_timeout_ms());
+  ASSERT_TRUE(final_quitter.WasNotificationCalled());
+  switch (domain) {
+    case multi_process_notification::ProfileDomain:
+      ASSERT_TRUE(profile_quitter.WasNotificationCalled());
+      ASSERT_FALSE(user_quitter.WasNotificationCalled());
+      ASSERT_FALSE(system_quitter.WasNotificationCalled());
+      break;
+
+    case multi_process_notification::UserDomain:
+      ASSERT_FALSE(profile_quitter.WasNotificationCalled());
+      ASSERT_TRUE(user_quitter.WasNotificationCalled());
+      ASSERT_FALSE(system_quitter.WasNotificationCalled());
+      break;
+
+    case multi_process_notification::SystemDomain:
+      ASSERT_FALSE(profile_quitter.WasNotificationCalled());
+      ASSERT_FALSE(user_quitter.WasNotificationCalled());
+      ASSERT_TRUE(system_quitter.WasNotificationCalled());
+      break;
+  }
+}
+
+TEST_F(MultiProcessNotificationTest, BasicCreationTest) {
+  multi_process_notification::Listener local_listener(
+      "BasicCreationTest", multi_process_notification::UserDomain, NULL);
+  ASSERT_TRUE(local_listener.Start());
+  multi_process_notification::Listener system_listener(
+      "BasicCreationTest", multi_process_notification::SystemDomain, NULL);
+  ASSERT_TRUE(system_listener.Start());
+}
+
+TEST_F(MultiProcessNotificationTest, PostInProcessNotification) {
+  std::string local_notification("QuitLocalNotification");
+  multi_process_notification::PerformTaskOnNotification quitter(
+      new MessageLoop::QuitTask());
+  multi_process_notification::Listener listener(
+      local_notification, multi_process_notification::UserDomain, &quitter);
+
+  ASSERT_TRUE(listener.Start());
+  ASSERT_TRUE(multi_process_notification::Post(
+      local_notification, multi_process_notification::UserDomain));
+  SpinRunLoop(TestTimeouts::action_max_timeout_ms());
+  ASSERT_TRUE(quitter.WasNotificationCalled());
+}
+
+TEST_F(MultiProcessNotificationTest, PostProfileNotification) {
+  PostNotificationTest(multi_process_notification::ProfileDomain);
+}
+
+TEST_F(MultiProcessNotificationTest, PostUserNotification) {
+  PostNotificationTest(multi_process_notification::UserDomain);
+}
+
+TEST_F(MultiProcessNotificationTest, PostSystemNotification) {
+  PostNotificationTest(multi_process_notification::SystemDomain);
+}
+
+TEST_F(MultiProcessNotificationTest, ProfileCrossDomainPosting) {
+  CrossPostNotificationTest(multi_process_notification::ProfileDomain);
+}
+
+TEST_F(MultiProcessNotificationTest, UserCrossDomainPosting) {
+  CrossPostNotificationTest(multi_process_notification::UserDomain);
+}
+
+TEST_F(MultiProcessNotificationTest, SystemCrossDomainPosting) {
+  CrossPostNotificationTest(multi_process_notification::SystemDomain);
+}
+
+MULTIPROCESS_TEST_MAIN(MultiProcessProfileNotificationMain) {
+  return MultiProcessNotificationMain(
+      multi_process_notification::ProfileDomain);
+}
+
+MULTIPROCESS_TEST_MAIN(MultiProcessUserNotificationMain) {
+  return MultiProcessNotificationMain(multi_process_notification::UserDomain);
+}
+
+MULTIPROCESS_TEST_MAIN(MultiProcessSystemNotificationMain) {
+  return MultiProcessNotificationMain(multi_process_notification::SystemDomain);
+}
+
+#endif  // defined(OS_MACOSX)