Function compareObjects

packages/utils/src/diff/index.ts:176–209

(
  a: Record<string, any>,
  b: Record<string, any>,
  options?: DiffOptions,
  memorize: Memorize = DEFAULT_MEMORIZE,
)

}

function compareObjects(
  a: Record<string, any>,
  b: Record<string, any>,
  options?: DiffOptions,
  memorize: Memorize = DEFAULT_MEMORIZE,
) {
  let difference
  let hasThrown = false

  try {
    const formatOptions = getFormatOptions(FORMAT_OPTIONS, options)
    difference = getObjectsDifference(a, b, formatOptions, options, memorize)
  }
  catch {
    hasThrown = true
  }

  const noDiffMessage = getCommonMessage(NO_DIFF_MESSAGE, options)
  // If the comparison yields no results, compare again but this time
  // without calling `toJSON`. It's also possible that toJSON might throw.
  if (difference === undefined || difference === noDiffMessage) {
    const formatOptions = getFormatOptions(FALLBACK_FORMAT_OPTIONS, options)
    difference = getObjectsDifference(a, b, formatOptions, options, memorize)

    if (difference !== noDiffMessage && !hasThrown) {
      difference = `${getCommonMessage(
        SIMILAR_MESSAGE,
        options,
      )}\n\n${difference}`
    }
  }

  return difference
}

export function getDefaultFormatOptions(options?: DiffOptions): PrettyFormatOptions {
  return getFormatOptions(FORMAT_OPTIONS, options)