Function testUVProcessChainExternal

Tests/CMakeLib/testUVProcessChain.cxx:380–444

}

bool testUVProcessChainExternal(char const* helperCommand)
{
  cmUVProcessChainBuilder builder;
  std::unique_ptr<cmUVProcessChain> chain;
  int outputPipe[2], errorPipe[2];
  cm::uv_pipe_ptr outputInPipe, outputOutPipe, errorInPipe, errorOutPipe;

  if (cmGetPipes(outputPipe) < 0) {
    std::cout << "Error creating pipes" << std::endl;
    return false;
  }
  if (cmGetPipes(errorPipe) < 0) {
    std::cout << "Error creating pipes" << std::endl;
    return false;
  }

  builder.AddCommand({ helperCommand, "echo" })
    .AddCommand({ helperCommand, "capitalize" })
    .AddCommand({ helperCommand, "dedup" })
    .SetExternalStream(cmUVProcessChainBuilder::Stream_OUTPUT, outputPipe[1])
    .SetExternalStream(cmUVProcessChainBuilder::Stream_ERROR, errorPipe[1]);
  if (builder.GetLoop()) {
    std::cout << "GetLoop() should return null" << std::endl;
    return false;
  }

  if (!checkExecution(builder, chain)) {
    return false;
  }

  if (chain->OutputStream()) {
    std::cout << "OutputStream() was valid, expecting invalid" << std::endl;
    return false;
  }
  if (chain->ErrorStream()) {
    std::cout << "ErrorStream() was valid, expecting invalid" << std::endl;
    return false;
  }

  outputOutPipe.init(chain->GetLoop(), 0);
  uv_pipe_open(outputOutPipe, outputPipe[1]);
  outputOutPipe.reset();

  errorOutPipe.init(chain->GetLoop(), 0);
  uv_pipe_open(errorOutPipe, errorPipe[1]);
  errorOutPipe.reset();

  outputInPipe.init(chain->GetLoop(), 0);
  uv_pipe_open(outputInPipe, outputPipe[0]);
  cmUVStreambuf outputBuf;
  outputBuf.open(outputInPipe);
  std::istream outputStream(&outputBuf);

  errorInPipe.init(chain->GetLoop(), 0);
  uv_pipe_open(errorInPipe, errorPipe[0]);
  cmUVStreambuf errorBuf;
  errorBuf.open(errorInPipe);
  std::istream errorStream(&errorBuf);