lib/reporters/tap.js
function createProducer(tapVersion) {
  var producers = {
    '12': new TAP12Producer(),
    '13': new TAP13Producer()
  };
  var producer = producers[tapVersion];

  if (!producer) {
    throw new Error(
      'invalid or unsupported TAP version: ' + JSON.stringify(tapVersion)
    );
  }

  return producer;
}
function createProducer(tapVersion) {
  var producers = {
    '12': new TAP12Producer(),
    '13': new TAP13Producer()
  };
  var producer = producers[tapVersion];

  if (!producer) {
    throw new Error(
      'invalid or unsupported TAP version: ' + JSON.stringify(tapVersion)
    );
  }

  return producer;
}
function createProducer ( tapVersion ) { var producers = { '12' : new TAP12Producer ( ) , '13' : new TAP13Producer ( ) } ; var producer = producers [ tapVersion ] ; if ( ! producer ) { throw new Error ( 'invalid or unsupported TAP version: ' + JSON . stringify ( tapVersion ) ) ; } return producer ; }
Returns a `tapVersion`-appropriate TAP producer instance, if possible.

@private
@param {string} tapVersion - Version of TAP specification to produce.
@returns {TAPProducer} specification-appropriate instance
@throws {Error} if specification version has no associated producer.
Returns a tapVersion - appropriate TAP producer instance if possible .