public void rethrowFailureDoesNothingWhenTaskDidNotFail() {
        state.setOutcome(TaskExecutionOutcome.EXECUTED)
        state.rethrowFailure()
    }

    @Test
    public void rethrowsFailureWhenFailureIsRuntimeException() {
        RuntimeException failure = new RuntimeException()
        state.setOutcome(failure)
        try {
            state.rethrowFailure()
            fail()