generate py3k warnings on __getslice__, __delslice__, and __setslice__
Reviewer: Brett Cannon
diff --git a/Lib/test/test_py3kwarn.py b/Lib/test/test_py3kwarn.py
index 274e147..1b487fe 100644
--- a/Lib/test/test_py3kwarn.py
+++ b/Lib/test/test_py3kwarn.py
@@ -175,6 +175,28 @@
with catch_warning() as w:
self.assertWarning(set(), w, expected)
+ def test_slice_methods(self):
+ class Spam(object):
+ def __getslice__(self, i, j): pass
+ def __setslice__(self, i, j, what): pass
+ def __delslice__(self, i, j): pass
+ class Egg:
+ def __getslice__(self, i, h): pass
+ def __setslice__(self, i, j, what): pass
+ def __delslice__(self, i, j): pass
+
+ expected = "in 3.x, __{0}slice__ has been removed; use __{0}item__"
+
+ for obj in (Spam(), Egg()):
+ with catch_warning() as w:
+ self.assertWarning(obj[1:2], w, expected.format('get'))
+ w.reset()
+ del obj[3:4]
+ self.assertWarning(None, w, expected.format('del'))
+ w.reset()
+ obj[4:5] = "eggs"
+ self.assertWarning(None, w, expected.format('set'))
+
def test_tuple_parameter_unpacking(self):
expected = "tuple parameter unpacking has been removed in 3.x"
with catch_warning() as w: