捕获应用程序上下文错误spring junit

Question

I am writing junits for my spring boot based application, and my beans depends on some configuration parameters specified in application-.properties. In my configuration class where I am generating beans,

@Configuration
public class AppConfig{

@Value("${MyProperty}")
private String myProperty;

@Bean
public myBean bean1() throws MyException{
  if(myProperty.contentEquals("abc"){
     throw MyException("Value abc not allowed for bean1");
  }
}

In my junit I want to detect this scenario , if in my junit I set the profile and run it errors out saying 'Application startup failed' and not reach my before method or test method.

How do I handle this so that the junit does not fail and I am able to detect the myexception as well. Basically what I need is the application context creation to fail, but my unit tests to pass.

Thanks !

Answer 1

beans depends on some configuration parameters specified in application-.properties

This can be controlled by the @ConditionalOnProperty annotation directly on your bean definition. Therefore instead of throwing an exception in your test bean, you won't have it registered at all provided your config is not there:

I am writing junits for my spring boot based application, and my beans depends on some configuration parameters specified in application-.properties. In my configuration class where I am generating beans,

@ConditionalOnProperty(name = "myProperty", havingValue = "'hiThere'")
@Bean
public myBean bean1() {
   //..
}

If you want to invoke some SpEL operation on the property you can use @ConditionalOnExpression :

@ConditionalOnExpression("${myProperty}.contains('ere')")
@Bean
public myBean bean1() {
   //..
}