Function _mustCallInner

test/common/index.js:482–529

(fn, criteria = 1, field)

}

function _mustCallInner(fn, criteria = 1, field) {
  if (process._exiting)
    throw new Error('Cannot use common.mustCall*() in process exit handler');
  if (typeof fn === 'number') {
    criteria = fn;
    fn = noop;
  } else if (fn === undefined) {
    fn = noop;
  }

  if (typeof criteria !== 'number')
    throw new TypeError(`Invalid ${field} value: ${criteria}`);

  const context = {
    [field]: criteria,
    actual: 0,
    stack: inspect(new Error()),
    name: fn.name || '<anonymous>',
  };

  // Add the exit listener only once to avoid listener leak warnings
  if (mustCallChecks.length === 0) process.on('exit', runCallChecks);

  mustCallChecks.push(context);

  const _return = function() { // eslint-disable-line func-style
    context.actual++;
    return fn.apply(this, arguments);
  };
  // Function instances have own properties that may be relevant.
  // Let's replicate those properties to the returned function.
  // Refs: https://tc39.es/ecma262/#sec-function-instances
  Object.defineProperties(_return, {
    name: {
      value: fn.name,
      writable: false,
      enumerable: false,
      configurable: true,
    },
    length: {
      value: fn.length,
      writable: false,
      enumerable: false,
      configurable: true,
    },
  });
  return _return;
}

function skipIfEslintMissing() {
  if (!fs.existsSync(