Add comparison tests for tuple

Author: HomerMcMillan

tests/snippets/tuple.py

@@ -12,3 +12,6 @@
 # assert 3 * x == (1, 2, 1, 2, 1, 2)
 assert x * 0 == ()
 assert x * -1 == ()  # integers less than zero treated as 0
+
+assert y < x, "tuple __lt__ failed"
+assert x > y, "tuple __gt__ failed"