@Test
public void testGroupsThreadCounts() throws Exception {

    Builder builder = new Builder("some-service")
        .setBossGroupThreads(3)
        .setChildGroupThreads(5);

    builder.build();

    assertEquals(3, ((MultithreadEventExecutorGroup) builder.getBossGroup()).executorCount());
    assertEquals(5, ((MultithreadEventExecutorGroup) builder.getChildGroup()).executorCount());
}