process connections: make sure results are unique

2 files changed, 2 insertions, 1 deletions

diff --git a/psutil/__init__.py b/psutil/__init__.py
index ecc936d4..322cc214 100644
--- a/psutil/__init__.py
+++ b/psutil/__init__.py
@@ -13,7 +13,7 @@ in Python.
 from __future__ import division
 
 __author__ = "Giampaolo Rodola'"
-__version__ = "2.2.0"
+__version__ = "2.2.1"
 version_info = tuple([int(num) for num in __version__.split('.')])
 
 __all__ = [
diff --git a/test/test_psutil.py b/test/test_psutil.py
index c8e14e87..d5821974 100644
--- a/test/test_psutil.py
+++ b/test/test_psutil.py
@@ -2341,6 +2341,7 @@ class TestFetchAllProcesses(unittest.TestCase):
         self.assertTrue(ret >= 0)
 
     def connections(self, ret):
+        self.assertEqual(len(ret), len(set(ret)))
         for conn in ret:
             check_connection(conn)