Issue #9410: Various optimizations to the pickle module, leading to
speedups up to 4x (depending on the benchmark). Mostly ported from
Unladen Swallow; initial patch by Alexandre Vassalotti.
diff --git a/Lib/test/pickletester.py b/Lib/test/pickletester.py
index 70e5ad0..33c85dc 100644
--- a/Lib/test/pickletester.py
+++ b/Lib/test/pickletester.py
@@ -1068,6 +1068,15 @@
dumped = self.dumps(set([3]), 2)
self.assertEqual(dumped, DATA6)
+ def test_large_pickles(self):
+ # Test the correctness of internal buffering routines when handling
+ # large data.
+ for proto in protocols:
+ data = (1, b'x' * (256 * 1024))
+ dumped = self.dumps(data, proto)
+ loaded = self.loads(dumped)
+ self.assertEqual(loaded, data)
+
# Test classes for reduce_ex