rfc2217: improve tests and fix bugs

1 files changed, 10 insertions, 0 deletions

diff --git a/test/test_rfc2217.py b/test/test_rfc2217.py
index 05bee83..7fd9a6e 100644
--- a/test/test_rfc2217.py
+++ b/test/test_rfc2217.py
@@ -20,6 +20,16 @@ class Test_RFC2217(unittest.TestCase):
         s = serial.serial_for_url('rfc2217://127.99.99.99:2217', do_not_open=True)
         self.failUnlessRaises(serial.SerialException, s.open)
         self.assertFalse(s.is_open)
+        s.close() # no errors expected
+        # invalid address
+        s = serial.serial_for_url('rfc2217://127goingtofail', do_not_open=True)
+        self.failUnlessRaises(serial.SerialException, s.open)
+        self.assertFalse(s.is_open)
+        s.close() # no errors expected
+        # close w/o open is also OK
+        s = serial.serial_for_url('rfc2217://irrelevant', do_not_open=True)
+        self.assertFalse(s.is_open)
+        s.close() # no errors expected
 
 
 if __name__ == '__main__':