findById retorna pedido existente quando logado como cliente e o pedido pertence ao usuário
@TestpublicvoidfindByIdShouldReturnOrderWhenLoggedAsClientAndOrderBelongsToClient() { existingId =1L;given().header("Content-type","application/json").header("Authorization","Bearer "+ clientToken).accept(ContentType.JSON).when().get("/orders/{id}", existingId).then().statusCode(200).assertThat().body("client.name",equalTo("Maria Brown")).assertThat().body("id",equalTo(1)).assertThat().body("moment",equalTo("2022-07-25T13:00:00Z")).assertThat().body("status",equalTo("PAID")).assertThat().body("items.name",hasItems("The Lord of the Rings","Macbook Pro"));}