@Test
void runSpider() throws Exception {

  final SpiderBruteForce spider = new SpiderBruteForce();
  spider.execute(configuration);
  verify(resultReceiver, atLeastOnce()).receiveResult(ind.capture());
  assertThat(ind.getAllValues())
      .hasSize(1)
      .first()
      .isEqualTo(expectedInd());
}