### Question:
CurrencyExchangeController { @GetMapping("/") public String imHealthy() { return "{healthy:true}"; }  @GetMapping("/") String imHealthy(); @GetMapping("/currency-exchange/from/{from}/to/{to}") ExchangeValue retrieveExchangeValue(@PathVariable String from, @PathVariable String to,
			@RequestHeader Map<String, String> headers);  }### Answer:
@Test public void imHealthy() throws Exception { mvc.perform(get("/")).andExpect(status().isOk()); }