@Test
public void testSingleResponseFromCache() throws IOException {

    List<HystrixInvokableInfo<?>> executions = new ArrayList<HystrixInvokableInfo<?>>();
    HystrixInvokableInfo<Integer> foo1 = new SimpleExecution(fooKey, 23, "cacheKeyA", HystrixEventType.SUCCESS);
    HystrixInvokableInfo<Integer> cachedFoo1 = new SimpleExecution(fooKey, "cacheKeyA");
    executions.add(foo1);
    executions.add(cachedFoo1);
    HystrixRequestEvents request = new HystrixRequestEvents(executions);
    String actual = SerialHystrixRequestEvents.toJsonString(request);
    assertEquals("[{\"name\":\"Foo\",\"events\":[\"SUCCESS\"],\"latencies\":[23],\"cached\":1}]", actual);
}