Issue #22585: On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(),
instead of reading /dev/urandom, to get pseudo-random bytes.
diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index ce6bd91..152ba93 100644
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -27,6 +27,7 @@
import decimal
import fractions
import pickle
+import sysconfig
try:
import threading
except ImportError:
@@ -1053,6 +1054,12 @@
data2 = self.get_urandom_subprocess(16)
self.assertNotEqual(data1, data2)
+
+HAVE_GETENTROPY = (sysconfig.get_config_var('HAVE_GETENTROPY') == 1)
+
+@unittest.skipIf(HAVE_GETENTROPY,
+ "getentropy() does not use a file descriptor")
+class URandomFDTests(unittest.TestCase):
@unittest.skipUnless(resource, "test requires the resource module")
def test_urandom_failure(self):
# Check urandom() failing when it is not able to open /dev/random.