const MAX_DECIMAL_PLACES = 3;

// test() is part of Jest's serializer API

export function test(maybeNumber) {

  return (

    typeof maybeNumber === 'number' &&

    Number.isFinite(maybeNumber) &&

    !Number.isInteger(maybeNumber) &&

    !Number.isNaN(maybeNumber)

  );

}

// print() is part of Jest's serializer API

export function print(number, serialize, indent) {

  const string = number.toString();

  const pieces = string.split('.');

  if (pieces.length === 2) {

    if (pieces[1].length > MAX_DECIMAL_PLACES) {

      return number.toFixed(MAX_DECIMAL_PLACES);

    }

  }

  return string;

}