Function queryByQuery

src/queries/make-queries.ts:133–150

(instance: TestInstance, { printElementTree = true } = {})

  }

  function queryByQuery(instance: TestInstance, { printElementTree = true } = {}) {
    return function singleQueryFn(predicate: Predicate, options?: Options) {
      const results = queryAllByQuery(instance)(predicate, options);

      if (results.length > 1) {
        throw new ErrorWithStack(
          formatErrorMessage(getMultipleError(predicate, options), printElementTree),
          singleQueryFn,
        );
      }

      if (results.length === 0) {
        return null;
      }

      return results[0];
    };
  }

  function getByQuery(instance: TestInstance, { printElementTree = true } = {}) {
    return function getFn(predicate: Predicate, options?: Options) {