diff --git a/romancal/associations/tests/helpers.py b/romancal/associations/tests/helpers.py
index 00d2418f9..2dec99c78 100644
--- a/romancal/associations/tests/helpers.py
+++ b/romancal/associations/tests/helpers.py
@@ -65,10 +65,8 @@ def test_run_generate(self):
         for ppars in self.pools:
             pool = combine_pools(ppars.path, **ppars.kwargs)
             asns = generate(pool, rules)
-            assert (
-                len(asns) == ppars.n_asns
-            ), ppars.path + ": n_asns not expected {} {}".format(
-                len(asns), ppars.n_asns
+            assert len(asns) == ppars.n_asns, (
+                ppars.path + f": n_asns not expected {len(asns)} {ppars.n_asns}"
             )
             for asn, candidates in zip(asns, ppars.candidates):
                 assert set(asn.candidates) == set(candidates)
diff --git a/romancal/lib/suffix.py b/romancal/lib/suffix.py
index 3a0001f88..0627ccf48 100644
--- a/romancal/lib/suffix.py
+++ b/romancal/lib/suffix.py
@@ -85,7 +85,6 @@
     "pipeline",
     "dq_init",
     "linearitystep",
-    "dark_current",
     "jump",
     "sourcedetection",
     "sourcedetectionstep",