1 files changed, 7 insertions, 0 deletions
diff --git a/test/ec/utils.py b/test/ec/utils.py
index bedfed2..e1812b3 100644
--- a/test/ec/utils.py
+++ b/test/ec/utils.py
@@ -1,3 +1,10 @@
+from itertools import product
+from functools import reduce
+
 def slow(func):
     func.slow = 1
     return func
+
+def cartesian(*items):
+    for cart in product(*items):
+        yield reduce(lambda x, y: x + y, cart)
+\ No newline at end of file