Override default Spring-Boot application.properties settings in Junit Test with dynamic value

Question

I want to override properties defined in application.properties in tests, but @TestPropertySource only allows to provide predefined values.

What I need is to start a

Answer 1

You could override the value of the port property in the @BeforeClass like this:

@BeforeClass
public static void beforeClass() {
    System.setProperty("zookeeper.port", getRandomPort());
}