ceph/src/boost/libs/asio/test/streambuf.cpp

   1 //
   2 // streambuf.cpp
   3 // ~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9 //
  10
  11 // Disable autolinking for unit tests.
  12 #if !defined(BOOST_ALL_NO_LIB)
  13 #define BOOST_ALL_NO_LIB 1
  14 #endif // !defined(BOOST_ALL_NO_LIB)
  15
  16 // Test that header file is self-contained.
  17 #include <boost/asio/streambuf.hpp>
  18
  19 #include <boost/asio/buffer.hpp>
  20 #include "unit_test.hpp"
  21
  22 void streambuf_test()
  23 {
  24   boost::asio::streambuf sb;
  25
  26   sb.sputn("abcd", 4);
  27
  28   BOOST_ASIO_CHECK(sb.size() == 4);
  29
  30   for (int i = 0; i < 100; ++i)
  31   {
  32     sb.consume(3);
  33
  34     BOOST_ASIO_CHECK(sb.size() == 1);
  35
  36     char buf[1];
  37     sb.sgetn(buf, 1);
  38
  39     BOOST_ASIO_CHECK(sb.size() == 0);
  40
  41     sb.sputn("ab", 2);
  42
  43     BOOST_ASIO_CHECK(sb.size() == 2);
  44
  45     boost::asio::buffer_copy(sb.prepare(10), boost::asio::buffer("cd", 2));
  46     sb.commit(2);
  47
  48     BOOST_ASIO_CHECK(sb.size() == 4);
  49   }
  50
  51   BOOST_ASIO_CHECK(sb.size() == 4);
  52
  53   sb.consume(4);
  54
  55   BOOST_ASIO_CHECK(sb.size() == 0);
  56 }
  57
  58 BOOST_ASIO_TEST_SUITE
  59 (
  60   "streambuf",
  61   BOOST_ASIO_TEST_CASE(streambuf_test)
  62 )