.

wcfs/internal/xbtree_test.py

@@ -537,6 +537,9 @@ def test_restructure():
     assert b1._p_oid is None
     assert b3._p_oid is None
     R(z, 'T/B1,3')
+    # buckets were not yet assigned oid -> collapsed back into T
+    assert crack_btree(z) == (BTREE_ONE, ((1, X[1], 3, X[3]),), None)
+
     kind, keys, kids = crack_btree(z)
     # XXX here -> btree_one