.

wcfs/internal/xbtree_test.py

@@ -65,3 +65,15 @@ def test_topologyOf():
                                      (((), ()),  (6, 10)),
     """
 
+def test_iterStructPermutations():
+    def X(keys, maxdepth, maxsplit):
+        return list(xbtree.iterAllStructPermutations(keys, maxdepth, maxsplit))
+
+    assert X([],    0, 0) == [ T([], B()) ]
+    assert X([1],   0, 0) == [ T([], B(1)) ]
+    assert X([1,3], 0, 0) == [ T([], B(1,3)) ]
+
+    assert X([],    0, 1) == [ T([], B()), T([s], B()) ]    # XXX s is any
+    assert X([],    1, 0) == [ T([], B()), T([], T([], B())) ]
+
+    # XXX ...