py: Check that sequence has 2 elements for dict iterable constructor.
diff --git a/tests/basics/dict-from-iter.py b/tests/basics/dict-from-iter.py
index 8215969..dc76801 100644
--- a/tests/basics/dict-from-iter.py
+++ b/tests/basics/dict-from-iter.py
@@ -2,3 +2,13 @@
 d = dict([("foo", "foo2"), ("bar", "baz")])
 print(sorted(d.keys()))
 print(sorted(d.values()))
+
+try:
+    dict(((1,),))
+except ValueError:
+    print("ValueError")
+
+try:
+    dict(((1, 2, 3),))
+except ValueError:
+    print("ValueError")