Tidy up logging and rework tests from scratch

tests/legacy/label_combinator.py

@@ -0,0 +1,37 @@
+import os, sys, importlib, glob, inspect, itertools
+
+class LabelCombinator():
+
+    IDENTIFIER = 'label'
+    PREFIX = 'label_combinator_'
+
+    LABEL = 'ffx'
+
+    def __init__(self, context = None):
+        self._context = context
+        self._logger = context['logger']
+        self._reportLogger = context['report_logger']
+
+    def getIdentifier(self):
+        return LabelCombinator.IDENTIFIER
+
+    @staticmethod    
+    def list():
+        basePath = os.path.dirname(__file__)
+        return [os.path.basename(p)[len(LabelCombinator.PREFIX):-3]
+                for p
+                in glob.glob(f"{ basePath }/{LabelCombinator.PREFIX}*.py", recursive = True)
+                if p != __file__]
+
+    @staticmethod
+    def getClassReference(identifier):
+        module_name = f"tests.legacy.{LabelCombinator.PREFIX}{ identifier }"
+        importlib.import_module(module_name)
+        for name, obj in inspect.getmembers(sys.modules[module_name]):
+            #HINT: Excluding MediaCombinator as it seems to be included by import (?)
+            if inspect.isclass(obj) and name != 'LabelCombinator' and name.startswith('LabelCombinator'):
+                return obj
+
+    @staticmethod
+    def getAllClassReferences():
+        return [LabelCombinator.getClassReference(i) for i in LabelCombinator.list()]