Provide an iOS message pump for IO implementation.

base/message_pump_io_ios_unittest.cc

+// Copyright 2012 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/message_pump_io_ios.h"
+
+#include <unistd.h>
+
+#include "base/message_loop.h"
+#include "base/threading/thread.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+class MessagePumpIOSForIOTest : public testing::Test {
+ public:
+  MessagePumpIOSForIOTest()
+      : ui_loop_(MessageLoop::TYPE_UI),
+        io_thread_("MessagePumpIOSForIOTestIOThread") {}
+  virtual ~MessagePumpIOSForIOTest() {}
+
+  virtual void SetUp() {
+    base::Thread::Options options(MessageLoop::TYPE_IO, 0);
+    ASSERT_TRUE(io_thread_.StartWithOptions(options));
+    ASSERT_EQ(MessageLoop::TYPE_IO, io_thread_.message_loop()->type());
+  }
+
+  MessageLoop* ui_loop() { return &ui_loop_; }
+  MessageLoopForIO* io_loop() const {
+    return static_cast<MessageLoopForIO*>(io_thread_.message_loop());
+  }
+
+ private:
+  MessageLoop ui_loop_;
+  base::Thread io_thread_;
+  DISALLOW_COPY_AND_ASSIGN(MessagePumpIOSForIOTest);
+};
+
+// Concrete implementation of base::MessagePumpIOSForIO::Watcher that does
+// nothing useful.
+class StupidWatcher : public base::MessagePumpIOSForIO::Watcher {
+ public:
+  virtual ~StupidWatcher() {}
+
+  // base:MessagePumpIOSForIO::Watcher interface
+  virtual void OnFileCanReadWithoutBlocking(int fd) {}
+  virtual void OnFileCanWriteWithoutBlocking(int fd) {}
+};
+
+}  // namespace
+
+#if GTEST_HAS_DEATH_TEST
+
+// Test to make sure that we catch calling WatchFileDescriptor off of the
+//  wrong thread.
+TEST_F(MessagePumpIOSForIOTest, TestWatchingFromBadThread) {
+  base::MessagePumpIOSForIO::FileDescriptorWatcher watcher;
+  StupidWatcher delegate;
+
+  ASSERT_DEBUG_DEATH(io_loop()->WatchFileDescriptor(
+      STDOUT_FILENO, false, MessageLoopForIO::WATCH_READ, &watcher, &delegate),
+      "Check failed: "
+      "watch_file_descriptor_caller_checker_.CalledOnValidThread()");
+}
+
+#endif  // GTEST_HAS_DEATH_TEST