Assert deleted variables are really deleted

sanxiyn · sanxiyn · commit 2aeb0ad59b2f · 2019-04-22T00:26:30.000+09:00
diff --git a/tests/snippets/delete.py b/tests/snippets/delete.py
@@ -1,3 +1,4 @@
+from testutils import assert_raises
 
 a = 1
 del a
@@ -13,3 +14,5 @@ class MyObject: pass
 x = 1
 y = 2
 del (x, y)
+assert_raises(NameError, lambda: x)
+assert_raises(NameError, lambda: y)
