I am writing Unit Test Cases for Sling Models, I have a function that gets Configurations from ConfigurationAdmin.listConfiguration() method. I'm using Junit 5 and Aem Mock for testing. How can I mock "listConfiguration()" method since currently an exception is thrown "java.lang.UnsupportedOperationException";
I tried by using spy and return mocked object whenever this function is called but still I get the same error.
Fyi: when an OSGi Mock Service is somehow not doing exactly what is needed / reflects a real world scenario, you can override it by specifying another implementation with a higher service.ranking, so you could have very well created your own implementation and hooked it in there.
In case of the MockConfigurationAdmin before the PR I just linked, it is not possible to override exception cases for the listConfigurations-method with Mockito, as it defines no exceptions to be thrown. You can however make a new interface implementation that delegates the method calls to the MockConfigurationAdmin, where you do specify that it throws all the exceptions.