runFile.js

exports.runFile = function(modulepath, options) {
  options = options || {};
  if (options.testName && !Array.isArray(options.testName)) {
    options.testName = [options.testName];
  }

  var child = spawn(process.execPath, [ __dirname+'/child.js'
                                      , modulepath
                                      , JSON.stringify(options.parallel || false)
                                      , JSON.stringify(options.testName || null)
                                      ]);

  var buffer = '';
  child.stdout.on('data', function(data) {
    data = data.toString();

    var lines = data.split('\n');

    lines[0] = buffer + lines[0];
    buffer = lines.pop();

    lines = exports.messageDecode(lines);

    for (var i = 0; i < lines.length; i++) {
      if (typeof lines[i] === 'string') {
        if (options.stdout) {
          options.stdout(lines[i] + '\n');
        }
        else {
          console.log(lines[i]);
        }
      }
      else if (options[lines[i][0]]) {
        options[lines[i][0]].apply(null, lines[i].slice(1));
      }
    }
  });

  var errorBuffer = '';
  child.stderr.on('data', function(data) {
    errorBuffer += data.toString();
  });

  child.stderr.on('close', function() {
    if (errorBuffer && options.onSuiteDone) {
      options.onSuiteDone('loadError', {stderr: errorBuffer.trim()});
    }
  });

  return child;
}