@Test
public void testSingleFailureFallbackFailure() throws IOException {

    List<HystrixInvokableInfo<?>> executions = new ArrayList<HystrixInvokableInfo<?>>();
    executions.add(new SimpleExecution(fooKey, 104, HystrixEventType.FAILURE, HystrixEventType.FALLBACK_FAILURE));
    HystrixRequestEvents request = new HystrixRequestEvents(executions);
    String actual = SerialHystrixRequestEvents.toJsonString(request);
    assertEquals("[{\"name\":\"Foo\",\"events\":[\"FAILURE\",\"FALLBACK_FAILURE\"],\"latencies\":[104]}]", actual);
}