tests: filtering some wrong warnings

tests/gems/arch/test_pacman.py

@@ -1,4 +1,5 @@
 import os
+import warnings
 from unittest import TestCase
 
 from bauh.gems.arch import pacman
@@ -8,6 +9,10 @@ FILE_DIR = os.path.dirname(os.path.abspath(__file__))
 
 class PacmanTest(TestCase):
 
+    @classmethod
+    def setUpClass(cls):
+        warnings.filterwarnings('ignore')
+
     def test_list_ignored_packages(self):
         ignored = pacman.list_ignored_packages(FILE_DIR + '/resources/pacman_ign_pkgs.conf')