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3rdparty/boost_1_81_0/libs/process/test/spawn.cpp 2.64 KB
73ef4ff3   Hu Chunming   提交三方库
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  // Copyright (c) 2006, 2007 Julio M. Merino Vidal
  // Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
  // Copyright (c) 2009 Boris Schaeling
  // Copyright (c) 2010 Felipe Tanus, Boris Schaeling
  // Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
  //
  // Distributed under the Boost Software License, Version 1.0. (See accompanying
  // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  
  #define BOOST_TEST_MAIN
  #define BOOST_TEST_IGNORE_SIGCHLD
  #include <boost/test/included/unit_test.hpp>
  
  #include <boost/system/error_code.hpp>
  
  #include <boost/asio.hpp>
  #include <boost/algorithm/string/predicate.hpp>
  
  #include <boost/process/error.hpp>
  #include <boost/process/io.hpp>
  #include <boost/process/args.hpp>
  #include <boost/process/spawn.hpp>
  #include <boost/process/async_pipe.hpp>
  #include <boost/process/async.hpp>
  #include <system_error>
  
  #include <boost/process/filesystem.hpp>
  
  #include <string>
  #include <istream>
  #include <cstdlib>
  #if defined(BOOST_WINDOWS_API)
  #   include <windows.h>
  typedef boost::asio::windows::stream_handle pipe_end;
  #elif defined(BOOST_POSIX_API)
  #   include <sys/wait.h>
  #   include <unistd.h>
  typedef boost::asio::posix::stream_descriptor pipe_end;
  #endif
  
  namespace fs = boost::process::filesystem;
  namespace bp = boost::process;
  
  BOOST_AUTO_TEST_CASE(sync_spawn, *boost::unit_test::timeout(5))
  {
      using boost::unit_test::framework::master_test_suite;
  
      bp::ipstream is;
      std::error_code ec;
  
      bp::spawn(
          master_test_suite().argv[1],
          bp::args+={"test", "--echo-stdout", "hello"},
          bp::std_out > is,
          ec
      ); 
  
      BOOST_CHECK(!ec);
  
  
      std::string s;
  
      BOOST_TEST_CHECKPOINT("Starting read");
      is >> s;
      BOOST_TEST_CHECKPOINT("Finished read");
  
      BOOST_CHECK_EQUAL(s, "hello");
  }
  
  
  struct read_handler
  {
      boost::asio::streambuf &buffer_;
  
      read_handler(boost::asio::streambuf &buffer) : buffer_(buffer) {}
  
      void operator()(const boost::system::error_code &ec, std::size_t size)
      {
          std::istream is(&buffer_);
          std::string line;
          std::getline(is, line);
          BOOST_CHECK(boost::algorithm::starts_with(line, "abc"));
      }
  };
  
  BOOST_AUTO_TEST_CASE(async_spawn, *boost::unit_test::timeout(2))
  {
      using boost::unit_test::framework::master_test_suite;
  
      boost::asio::io_context io_context;
      bp::async_pipe p(io_context);
  
      std::error_code ec;
      bp::spawn(
          master_test_suite().argv[1],
          "test", "--echo-stdout", "abc",
          bp::std_out > p,
          ec
      );
      BOOST_REQUIRE(!ec);
  
      boost::asio::streambuf buffer;
      boost::asio::async_read_until(p, buffer, '\n',
          read_handler(buffer));
  
      io_context.run();
  }