.

wcfs/testprog/treegen.py

@@ -267,6 +267,8 @@ def AllStructs(kv1txt, kv2txt, maxdepth, maxsplit, n, seed=None):
 
     # all tree1 and tree2 topologies jumps in between we are going to emit:
     # native + n random ones.
+    if t1struct0 in t1AllStructs: t1AllStructs.remove(t1struct0) # avoid dups
+    if t2struct0 in t2AllStructs: t2AllStructs.remove(t2struct0)
     t1structv = [t1struct0] + random.sample(t1AllStructs, min(n, len(t1AllStructs)))
     t2structv = [t2struct0] + random.sample(t2AllStructs, min(n, len(t2AllStructs)))