add collections fixture

Author: blacktwin

tests/conftest.py

@@ -187,6 +187,11 @@ def movie(movies):
     return movies.get('Elephants Dream')
 
 
+@pytest.fixture()
+def collection(plex):
+    return plex.library.section('Movies').collection()[0]
+
+
 @pytest.fixture()
 def artist(music):
     return music.get('Infinite State')