Fixed #657 -- handle OverflowErrors on large allocation requests (#659)

* Fixed #657 -- handle OverflowErrors on large allocation requests

* always be overflowing

1 files changed, 4 insertions, 4 deletions

diff --git a/tests/test_rand.py b/tests/test_rand.py
index bdd3af0..41a4f27 100644
--- a/tests/test_rand.py
+++ b/tests/test_rand.py
@@ -32,11 +32,11 @@ class TestRand(object):
 
     def test_insufficient_memory(self):
         """
-        `OpenSSL.rand.bytes` raises `MemoryError` if more bytes are requested
-        than will fit in memory.
+        `OpenSSL.rand.bytes` raises `MemoryError` or `OverflowError` if more
+        bytes are requested than will fit in memory.
         """
-        with pytest.raises(MemoryError):
-            rand.bytes(sys.maxsize)
+        with pytest.raises((MemoryError, OverflowError)):
+            rand.bytes(sys.maxsize + 1)
 
     def test_bytes(self):
         """