How to test constructor of a class that has a @PostConstruct method using Spring?

Question

If I have a class with a @PostConstruct method, how can I test its constructor and thus its @PostConstruct method using JUnit and Spring? I can\'t simply use new ClassName(param

Answer 1

@PostConstruct must be changing the state of the object. So, in JUnit test case, after getting the bean check the state of the object. If it is same as the state set by @PostConstruct, then the test is success.