SlingModel JUnit test exception error

Hi,

I am trying to write a very basic unit test for my Sling Model. The purpose of my model is very elementary: read some simple structure from repository and build a Map of key/values out of it. I am using JUnit and Sling Mock for unit testing. I am using Resource Resolver mock default implementation to build the test content in memory.

My code is below: I only have one test method.

Code:

Unfortunately I am having the following exception:

Could you please maybe help me to understand where is the mistake?

Thanks!