Redis – Spring Boot Microservice JUnit Test – How can I get jwt token from one service and use it another service

I have a problem about getting jwt token from one service and use it in the test method of one service.

I tried to write JUnit Controller test in payment, product and order service in my spring boot microservice example. After I defined auth service to handle with creating user and login with jwt token and defined api gateway to use JWTFilter, it is required to define bearer token for each request of each test request method.

Normally, it works but I have to get jwt token and use it but I have no idea how to get it?

Here is an one test method of PaymentControllerTest shown below. As you can see, there is no defination of Authorization Bearer. How can I define it?

@Test
    @DisplayName("Place Order -- Success Scenario")
    void test_When_placeOrder_DoPayment_Success() throws Exception {

        OrderRequest orderRequest = getMockOrderRequest();
        String jwt = getJWTTokenForRoleUser();

        MvcResult mvcResult
                = mockMvc.perform(MockMvcRequestBuilders.post("/order/placeorder")
                        .contentType(MediaType.APPLICATION_JSON_VALUE)
                        .header("Authorization", "Bearer " + jwt)
                        .content(objectMapper.writeValueAsString(orderRequest)))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andReturn();

        String orderId = mvcResult.getResponse().getContentAsString();

        Optional<Order> order = orderRepository.findById(Long.valueOf(orderId));
        assertTrue(order.isPresent());

        Order o = order.get();
        assertEquals(Long.parseLong(orderId), o.getId());
        assertEquals("PLACED", o.getOrderStatus());
        assertEquals(orderRequest.getTotalAmount(), o.getAmount());
        assertEquals(orderRequest.getQuantity(), o.getQuantity());
    }

Here are methods regarding the jwt token process

private String getJWTTokenForRoleUser(){

    var loginRequest = new LoginRequest("User1","user1");

    String jwt = jwtUtils.generateJwtToken(loginRequest.getUsername());

    return jwt;
    }

@Data
@AllArgsConstructor
@NoArgsConstructor
public class LoginRequest {

  private String username;
  private String password;

}

Here is the jwtutil class shown below

@Component
public class JwtUtils {

    private static final Logger LOGGER = LoggerFactory.getLogger(JwtUtils.class);

    @Value("${jwt.secret}")
    private String jwtSecret;

    @Value("${jwt.expireMs}")
    private int jwtExpirationMs;

    public String generateJwtToken(String username) {
        return generateTokenFromUsername(username);
    }

    public String generateTokenFromUsername(String username) {
        return Jwts.builder().setSubject(username).setIssuedAt(new Date())
                .setExpiration(new Date((new Date()).getTime() + jwtExpirationMs))
                .signWith(SignatureAlgorithm.HS512, jwtSecret).compact();
    }
}

To run the app,
1 ) Run Service Registery (Eureka Server)

2 ) Run config server

3 ) Run zipkin and redis through these commands shown below on docker

docker run -d -p 9411:9411 openzipkin/zipkin 
docker run -d --name redis -p 6379:6379 redis

4 ) Run api gateway

5 ) Run auth service,product service,order service and payment service

Edited (I defined all properites in application-test.yaml but they couldn’t be fetched from OrderControllerTest)

Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'jwt.secret' in value "${jwt.secret}"

Here is the repo : Link