How to get the running server port in a SpringBoot test?

Question

I'm creating some unit tests for a spring boot application with an Apache Camel route, using Spock as testing framework, and I need to mock a response from another application. I made a mock controller for that, but i need to inject the port that the test is running in to a property. Is there a way to get the port that the test is running on?

I tried with

@LocalServerPort
private int port

and with

@Autowired Environment environment;
String port = environment.getProperty("local.server.port");

but both return a -1, I don´t know any other ways to get the port

My test is configured with the following annotations:

@RunWith(SpringRunner)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@ActiveProfiles('test')

Also, is there a way to inject that random port in the application-test.yml file? Ideally I would need to do something like this in my application-test.yml file:

app:
  service: localhost:${server.port}

Where the port is the random port that the test is running on.

https://stackoverflow.com/questions/30312058/spring-boot-how-to-get-the-running-port or https://stackoverflow.com/questions/51628943/spring-boot-how-to-get-running-port-and-ip-address — Sheetal Mohan Sharma, Nov 28 '18 at 16:35
https://stackoverflow.com/questions/52301056/how-to-get-server-port-in-spring-boot-test — G.G., Nov 28 '18 at 16:37
hi guys, those answers didn´t work for me, each return a null for the port — Juan Villalobos, Nov 28 '18 at 16:57

score 4 · Answer 1 · answered Nov 28 '18 at 16:41

4

Could you try this :

@SpringBootTest(classes = {Application.class}, webEnvironment = WebEnvironment.RANDOM_PORT)
    public class test{

    @LocalServerPort
    private int rdmServerPort;

    @LocalManagementPort
    private int rdmManagementPort;
        ...
}

answered Nov 28 '18 at 16:41

Abder KRIMA

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3

`WebEnvironment.RANDOM_PORT` is key here. If you use the default mock web environment, no embedded container is started. As a result, there's no port involved and `-1` will be injected. – Andy Wilkinson Nov 28 '18 at 16:47
@AndyWilkinson looks like op is already using that. If using `RANDOM_PORT` is there a way to reference it in the property file like OP says `app.service=localhost:${server.port}` (with server.port not beind explicitly defined) – Federico Piazza Nov 28 '18 at 18:04

How to get the running server port in a SpringBoot test?

1 Answers1