Function expectsNoError

lib/assert.js:695–719

(stackStartFn, actual, error, message)

}

function expectsNoError(stackStartFn, actual, error, message) {
  if (actual === NO_EXCEPTION_SENTINEL)
    return;

  if (typeof error === 'string') {
    message = error;
    error = undefined;
  }

  if (!error || hasMatchingError(actual, error)) {
    const details = message ? `: ${message}` : '.';
    const fnType = stackStartFn === Assert.prototype.doesNotReject ?
      'rejection' : 'exception';
    innerFail({
      actual,
      expected: error,
      operator: stackStartFn.name,
      message: [`Got unwanted ${fnType}${details}\n` +
               `Actual message: "${actual?.message}"`],
      stackStartFn,
      diff: this?.[kOptions]?.diff,
    });
  }
  throw actual;
}

/**
 * Expects the function `promiseFn` to throw an error.