.

wcfs/internal/xbtree.py

@@ -441,6 +441,11 @@ def Restructure(ztree, newStructure):
 
             print('ZSTATE:', zstate)
             node.Z.__setstate__(zstate)
+            zstate2 = node.Z.__getstate__()
+            if zstate2 != zstate:
+                panic("BUG: Restructure: node.__getstate__ returns not what "
+                      "we passed into node.__setstate__.\nnode: %r\n"
+                      "__setstate__ <- %r\n__getstate__ -> %r" % (node.Z, zstate, zstate2))
 
 
     assert tnew.Z is ztree

wcfs/internal/xbtree_test.py

@@ -370,6 +370,9 @@ def test_restructure():
     assert (kind, keys) == (BTREE_NORMAL, [])
     assert len(kids) == 1
     assert isinstance(kids[0], XLOTree)
+    print('\nAAA')
+    print(kids[0])
+    print(kids[0].__getstate__())
     kind, keys, kids = crack_btree(kids[0])
     assert (kind, keys) == (BTREE_NORMAL, [])
     assert len(kids) == 0