Function randomClusterItems

packages/core/src/tests/utils.ts:438–457

(nestingLvl = 2, maxItems = 5)

}

export function randomClusterItems(nestingLvl = 2, maxItems = 5): ClusterItems {
  --nestingLvl;
  const itemsKeys = randomKeys(maxItems, 1);
  const itemsCtors = itemsKeys.map(() => selectRandom(ALL_CTORS));

  return itemsKeys.reduce((reduced, key, index) => {
    if (itemsCtors[index] === Cluster) {
      if (nestingLvl >= 0) {
        const nestedClusterItems = randomClusterItems(nestingLvl, maxItems);
        reduced[key] = new itemsCtors[index](
          // cluster needs at least one item, otherwise it throws error
          Object.keys(nestedClusterItems).length ? nestedClusterItems : {unit: randomUnit()}
        );
      }
    } else {
      reduced[key] = new itemsCtors[index]();
    }
    return reduced;
  }, {});
}

export function randomMutation<T>(o: T): void {
  if (o == null || typeof o !== 'object') {