Function asyncFn

packages/expect/src/__tests__/toThrowMatchers.test.ts:575–585

(shouldThrow?: boolean, resolve?: boolean)

  describe('promise/async throws if Error-like object is returned', () => {
    const asyncFn = async (shouldThrow?: boolean, resolve?: boolean) => {
      let err;
      if (shouldThrow) {
        err = new Err('async apple');
      }
      if (resolve) {
        return err || 'apple';
      } else {
        throw err || 'apple';
      }
    };

    test('passes', async () => {
      expect.assertions(24);