oops, nasty off-by-one in set_copy

1 files changed, 26 insertions, 25 deletions

diff --git a/tests/basics/tests/set_binop.py b/tests/basics/tests/set_binop.py
index 46ecbcb63..d0d0b8027 100644
--- a/tests/basics/tests/set_binop.py
+++ b/tests/basics/tests/set_binop.py
@@ -1,29 +1,30 @@
 def r(s):
     l = list(s)
     l.sort()
-    print(l)
-s = {1, 2}
-t = {2, 3}
-r(s | t)
-r(s ^ t)
-r(s & t)
-r(s - t)
-u = s.copy()
-u |= t
-r(u)
-u = s.copy()
-u ^= t
-r(u)
-u = s.copy()
-u &= t
-r(u)
-u = s.copy()
-u -= t
-r(u)
+    return l
+sets = [set(), {1}, {1, 2}, {1, 2, 3}, {2, 3}, {2, 3, 5}, {5}, {7}]
+for s in sets:
+    for t in sets:
+        print(s, '|', t, '=', r(s | t))
+        print(s, '^', t, '=', r(s ^ t))
+        print(s, '&', t, '=', r(s & t))
+        print(s, '-', t, '=', r(s - t))
+        u = s.copy()
+        u |= t
+        print(s, "|=", t, '-->', r(u))
+        u = s.copy()
+        u ^= t
+        print(s, "^=", t, '-->', r(u))
+        u = s.copy()
+        u &= t
+        print(s, "&=", t, "-->", r(u))
+        u = s.copy()
+        u -= t
+        print(s, "-=", t, "-->", r(u))
 
-print(s == t)
-print(s != t)
-print(s > t)
-print(s >= t)
-print(s < t)
-print(s <= t)
+        print(s, '==', t, '=', s == t)
+        print(s, '!=', t, '=', s != t)
+        print(s, '>', t, '=', s > t)
+        print(s, '>=', t, '=', s >= t)
+        print(s, '<', t, '=', s < t)
+        print(s, '<=', t, '=', s <= t)