chrome/renderer/media/chrome_webrtc_log_message_delegate_unittest.cc

   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 <string>
   6
   7 #include "base/process/process_handle.h"
   8 #include "chrome/common/partial_circular_buffer.h"
   9 #include "chrome/renderer/media/chrome_webrtc_log_message_delegate.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11
  12 TEST(ChromeWebRtcLogMessageDelegateTest, Basic) {
  13   const uint32 kTestLogSize = 1024;  // 1 KB
  14   const char kTestString[] = "abcdefghijklmnopqrstuvwxyz";
  15
  16   base::MessageLoop message_loop(base::MessageLoop::TYPE_IO);
  17
  18   scoped_ptr<ChromeWebRtcLogMessageDelegate> log_message_delegate(
  19       new ChromeWebRtcLogMessageDelegate(message_loop.message_loop_proxy(),
  20                                          NULL));
  21
  22   base::SharedMemory shared_memory;
  23   ASSERT_TRUE(shared_memory.CreateAndMapAnonymous(kTestLogSize));
  24   base::SharedMemoryHandle new_handle;
  25   ASSERT_TRUE(shared_memory.ShareToProcess(base::GetCurrentProcessHandle(),
  26                                            &new_handle));
  27   log_message_delegate->OnLogOpened(new_handle, kTestLogSize);
  28
  29   log_message_delegate->LogMessage(kTestString);
  30   log_message_delegate->LogMessage(kTestString);
  31
  32   PartialCircularBuffer read_pcb(
  33       reinterpret_cast<uint8*>(shared_memory.memory()), kTestLogSize);
  34
  35   // Size is calculated as (sizeof(kTestString) - 1 for terminating null
  36   // + 1 for eol added for each log message in LogMessage) * 2 + 1 for
  37   // terminating null.
  38   char read_buffer[sizeof(kTestString) * 2 + 1] = {0};
  39
  40   uint32 read = read_pcb.Read(read_buffer, sizeof(read_buffer));
  41   EXPECT_EQ(sizeof(read_buffer) - 1, read);
  42   std::string ref_output = kTestString;
  43   ref_output.append("\n");
  44   ref_output.append(kTestString);
  45   ref_output.append("\n");
  46   EXPECT_STREQ(ref_output.c_str(), read_buffer);
  47 }