Testing customer logic

When it is necessary to add additional unit test to test customer logic which is related with Social25 it is required to add a basic configuration.

This can be done by adding the following line in the @TestSetup function of the unit test

When coming from on older version where the Social25__Social25_Config__c object was still in use to store the configuration, it is required to change the parts where a test Social25__Social25_Config__c record was inserted with the function call described above.