Changed LINGER to SNDBUF

Not sure why linger has changed, maybe its been removed?

Author: tonysimpson-sky

tests/test_general_socket_methods.py

@@ -8,14 +8,12 @@
 from nanomsg import (
     PAIR,
     Socket,
-    LINGER,
+    SNDBUF,
     SOL_SOCKET
 )
 
 SOCKET_ADDRESS = os.environ.get('NANOMSG_PY_TEST_ADDRESS', "inproc://a")
 
-LINGER_DEFAULT_VALUE = 1000
-
 
 class TestGeneralSocketMethods(unittest.TestCase):
     def setUp(self):
@@ -42,19 +40,14 @@ def test_is_open_is_false_when_closed(self):
 
         self.assertFalse(self.socket.is_open())
 
-    def test_set_int_option(self):
+    def test_set_and_get_int_option(self):
         expected = 500
 
-        self.socket.set_int_option(SOL_SOCKET, LINGER, expected)
+        self.socket.set_int_option(SOL_SOCKET, SNDBUF, expected)
 
-        actual = self.socket.get_int_option(SOL_SOCKET, LINGER)
+        actual = self.socket.get_int_option(SOL_SOCKET, SNDBUF)
         self.assertEqual(expected, actual)
 
-    def test_get_int_option(self):
-        actual = self.socket.get_int_option(SOL_SOCKET, LINGER)
-
-        self.assertEqual(LINGER_DEFAULT_VALUE, actual)
-
 
 if __name__ == '__main__':
     unittest.main()