diff --git a/clustering/feature-subsetting-plugin/src/polus/plugins/clustering/feature_subsetting/feature_subset.py b/clustering/feature-subsetting-plugin/src/polus/plugins/clustering/feature_subsetting/feature_subset.py
index a84455e8e..06578672d 100644
--- a/clustering/feature-subsetting-plugin/src/polus/plugins/clustering/feature_subsetting/feature_subset.py
+++ b/clustering/feature-subsetting-plugin/src/polus/plugins/clustering/feature_subsetting/feature_subset.py
@@ -277,8 +277,6 @@ def feature_subset(  # noqa : C901
                     {k: file[0][k] for k in section_variables},
                 ),
             )
-
-        # for k,v in rename_map.items():
         fm = file[1][0][0]
         fname = file[1][0][1][0].name
 
diff --git a/clustering/feature-subsetting-plugin/tests/test_feature_subsetting.py b/clustering/feature-subsetting-plugin/tests/test_feature_subsetting.py
index 7c9828cc4..b3691f10f 100644
--- a/clustering/feature-subsetting-plugin/tests/test_feature_subsetting.py
+++ b/clustering/feature-subsetting-plugin/tests/test_feature_subsetting.py
@@ -39,3 +39,33 @@ def test_feature_subset(
     shutil.rmtree(inp_dir)
     shutil.rmtree(out_dir)
     shutil.rmtree(tabular_dir)
+
+
+def test_filter_planes() -> None:
+    """Test filter planes."""
+    feature_dict = {
+        1: 1236.597914951989,
+        2: 1153.754875685871,
+        3: 1537.3429175240055,
+        4: 1626.0415809327849,
+    }
+
+    percentile = 0.1
+    remove_direction = "Below"
+    fn = fs.filter_planes(
+        feature_dict=feature_dict,
+        remove_direction=remove_direction,
+        percentile=percentile,
+    )
+
+    assert type(fn) == set
+
+
+def test_make_uniform() -> None:
+    """Test each section contain same number of images."""
+    planes_dict = {1: [3, 4]}
+    uniques = [1, 2, 3, 4]
+    padding = 0
+    fn = fs.make_uniform(planes_dict=planes_dict, uniques=uniques, padding=padding)
+
+    assert len(fn) != 0