Fix black and cover errors

Change-Id: Ic6b5d4babf5d7da3f1e78b0ed1abd5110bc9a904
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/osm_pla/test/test_nsPlacementDataFactory.py b/osm_pla/test/test_nsPlacementDataFactory.py
index dbb8572..b7075c3 100644
--- a/osm_pla/test/test_nsPlacementDataFactory.py
+++ b/osm_pla/test/test_nsPlacementDataFactory.py
@@ -319,7 +319,8 @@
 
     def _adjust_path(self, file):
         """In case we are not running from test directory,
-        then assume we are in top level directory (e.g. running from tox) and adjust file path accordingly"""
+        then assume we are in top level directory (e.g. running from tox) and adjust file path accordingly
+        """
         path_component = "/osm_pla/test/"
         real_path = os.path.realpath(file)
         if path_component not in real_path:
@@ -747,7 +748,6 @@
         )
 
     def test__produce_vld_desc_w_instantiate_override(self):
-
         vld_desc_expected = [
             {"cp_refs": ["one", "two"], "latency": 150, "jitter": 30},
             {"cp_refs": ["two", "three"], "latency": 90, "jitter": 30},