Issue #16257: make test_create_connection() handle ENETUNREACH.
diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
index 13d0eb4..7d8b33a 100644
--- a/Lib/test/test_socket.py
+++ b/Lib/test/test_socket.py
@@ -1197,7 +1197,26 @@
port = test_support.find_unused_port()
with self.assertRaises(socket.error) as cm:
socket.create_connection((HOST, port))
- self.assertEqual(cm.exception.errno, errno.ECONNREFUSED)
+
+ # Issue #16257: create_connection() calls getaddrinfo() against
+ # 'localhost'. This may result in an IPV6 addr being returned
+ # as well as an IPV4 one:
+ # >>> socket.getaddrinfo('localhost', port, 0, SOCK_STREAM)
+ # >>> [(2, 2, 0, '', ('127.0.0.1', 41230)),
+ # (26, 2, 0, '', ('::1', 41230, 0, 0))]
+ #
+ # create_connection() enumerates through all the addresses returned
+ # and if it doesn't successfully bind to any of them, it propagates
+ # the last exception it encountered.
+ #
+ # On Solaris, ENETUNREACH is returned in this circumstance instead
+ # of ECONNREFUSED. So, if that errno exists, add it to our list of
+ # expected errnos.
+ expected_errnos = [ errno.ECONNREFUSED, ]
+ if hasattr(errno, 'ENETUNREACH'):
+ expected_errnos.append(errno.ENETUNREACH)
+
+ self.assertIn(cm.exception.errno, expected_errnos)
def test_create_connection_timeout(self):
# Issue #9792: create_connection() should not recast timeout errors