Function toJSONDeep

src/__testUtils__/expectJSON.ts:10–24

* Deeply transforms an arbitrary value to a JSON-safe value by calling toJSON * on any nested value which defines it.

(value: unknown)

 * on any nested value which defines it.
 */
function toJSONDeep(value: unknown): unknown {
  if (!isObjectLike(value)) {
    return value;
  }

  if (typeof value.toJSON === 'function') {
    return value.toJSON();
  }

  if (Array.isArray(value)) {
    return value.map(toJSONDeep);
  }

  return mapValue(value, toJSONDeep);
}

export function expectJSON(actual: unknown): {
  toDeepEqual: (expected: unknown) => ReturnType<typeof expect>;