diff --git a/testing/python/setup_plan.py b/testing/python/setup_plan.py
index <HASH>..<HASH> 100644
--- a/testing/python/setup_plan.py
+++ b/testing/python/setup_plan.py
@@ -1,4 +1,5 @@
 def test_show_fixtures_and_test(testdir):
+    """ Verifies that fixtures are not executed. """
     p = testdir.makepyfile('''
         import pytest
         @pytest.fixture
Improve commenting for setupplan unittest.