Remove general preference memento handling in debug tests #2385
+20
−33
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The superclass of all debug tests manages a preference memento to restore initial preferences after a test case execution. This is, however, only used by two actual tests, such that providing it for every debug test is not necessary and leads to unnecessary complexity in the hierarchy of test classes.
This change moves the preference memento to exactly those two test classes in which it is required, as a prerequisite for simplifying the inheritance hierarchy and moving to JUnit 5.