Tidy up logging and rework tests from scratch

tests/legacy/disposition_combinator_2_3 .py

@@ -0,0 +1,43 @@
+import os, sys, importlib, glob, inspect
+
+from ffx.track_disposition import TrackDisposition
+from .disposition_combinator_2 import DispositionCombinator2
+
+
+class DispositionCombinator23(DispositionCombinator2):
+
+    VARIANT = 'D11'
+
+
+    def __init__(self, context = None,
+                    createPresets: bool = False):
+        super().__init__(context)
+
+        self.__createPresets = createPresets
+
+    def getVariant(self):
+        return DispositionCombinator23.VARIANT
+
+
+    def getPayload(self):
+
+        subtrack0 = set([TrackDisposition.DEFAULT])
+        subtrack1 = set([TrackDisposition.DEFAULT])
+
+        #NOTE: Current ffmpeg version will not set most of the dispositions on arbitrary tracks
+        # so some checks for preserved dispositions are omitted for now
+        if self.__createPresets:
+            # subtrack0.add(TrackDisposition.COMMENT) # COMMENT
+            subtrack1.add(TrackDisposition.FORCED) # DESCRIPTIONS
+
+        return (subtrack0,
+                subtrack1)
+
+    #TODO: tmdb cases
+    def createAssertFunc(self):
+        def f(assertObj: dict = {}):
+            pass
+        return f
+
+    def shouldFail(self):
+        return True