.

wcfs/internal/xbtree_test.py

@@ -88,7 +88,14 @@ def test_topoEncoding():
     assert X(T([], B(1,3)))         == 'T/B1,3'
     assert X(T([], T([], B())))     == 'T/T/B'
 
-    #assert X(T(
+    # XXX more
+
+    assert X(T([3],
+               T([], B(1)),
+               T([],
+                 T([5], B(), B(7,8,9)))))   == "T3/T-T/B1-T5/B-B7,8,9"
+
+    # XXX degenerate btree from ^^^
 
 
 def test_allStructs():