diff --git a/pdal_ign_macro/mark_points_to_use_for_digital_models_with_new_dimension.py b/pdal_ign_macro/mark_points_to_use_for_digital_models_with_new_dimension.py
index 11a1a1b..0fe1e19 100755
--- a/pdal_ign_macro/mark_points_to_use_for_digital_models_with_new_dimension.py
+++ b/pdal_ign_macro/mark_points_to_use_for_digital_models_with_new_dimension.py
@@ -14,7 +14,7 @@
 """
 
 
-def parse_args():
+def parse_args(argv=None):
     parser = argparse.ArgumentParser(
         "Tool to apply pdal pipelines to select points for DSM and DTM calculation"
         + "(add dimensions with positive values for the selected points)"
@@ -51,7 +51,6 @@ def parse_args():
     )
     parser.add_argument(
         "--skip_buffer",
-        "-s",
         action="store_true",
         help="If set, skip adding a buffer from the neighbor tiles based on their name",
     )
@@ -71,18 +70,16 @@ def parse_args():
         "--tile_width",
         type=int,
         default=1000,
-        action="store_true",
         help="width of tiles in meters (required when running with a buffer)",
     )
     parser.add_argument(
         "--tile_coord_scale",
         type=int,
         default=1000,
-        action="store_true",
         help="scale used in the filename to describe coordinates in meters (required when running with a buffer)",
     )
 
-    return parser.parse_args()
+    return parser.parse_args(argv)
 
 
 def define_marking_pipeline(input_las, output_las, dsm_dimension, dtm_dimension):
@@ -352,7 +349,7 @@ def main(
     dtm_dimension,
     output_dsm,
     output_dtm,
-    keep_temporary_dimensions=False,
+    keep_temporary_dims=False,
     skip_buffer=False,
     buffer_width=25,
     spatial_ref="EPSG:2154",
@@ -367,7 +364,7 @@ def main(
             dtm_dimension,
             output_dsm,
             output_dtm,
-            keep_temporary_dimensions,
+            keep_temporary_dims,
         )
     else:
         mark_with_buffer = run_on_buffered_las(
@@ -381,7 +378,7 @@ def main(
             dtm_dimension,
             output_dsm,
             output_dtm,
-            keep_temporary_dimensions,
+            keep_temporary_dims,
         )
 
 
diff --git a/test/pdal_ign_macro/test_mark_points_to_use_for_digital_models_with_new_dimension.py b/test/pdal_ign_macro/test_mark_points_to_use_for_digital_models_with_new_dimension.py
index f551d01..07ff379 100644
--- a/test/pdal_ign_macro/test_mark_points_to_use_for_digital_models_with_new_dimension.py
+++ b/test/pdal_ign_macro/test_mark_points_to_use_for_digital_models_with_new_dimension.py
@@ -1,3 +1,4 @@
+import inspect
 import tempfile
 
 import numpy as np
@@ -6,6 +7,7 @@
 from pdal_ign_macro.mark_points_to_use_for_digital_models_with_new_dimension import (
     main,
     mark_points_to_use_for_digital_models_with_new_dimension,
+    parse_args,
 )
 
 
@@ -76,7 +78,7 @@ def test_main_no_buffer():
             dtm_dimension,
             "",
             "",
-            keep_temporary_dimensions=False,
+            keep_temporary_dims=False,
             skip_buffer=True,
         )
         pipeline = pdal.Pipeline()
@@ -103,7 +105,7 @@ def test_main_with_buffer():
             dtm_dimension,
             "",
             "",
-            keep_temporary_dimensions=False,
+            keep_temporary_dims=False,
             skip_buffer=False,
             buffer_width=10,
             tile_width=50,
@@ -119,3 +121,13 @@ def test_main_with_buffer():
         arr = pipeline.arrays[0]
         assert np.any(arr[dsm_dimension] == 1)
         assert np.any(arr[dtm_dimension] == 1)
+
+
+def test_parse_args():
+    # sanity check for arguments parsing
+    args = parse_args(
+        ["--input_las", "test/data/4_6.las", "--output_las", "tmp/parse_args_out.las"]
+    )
+    parsed_args_keys = args.__dict__.keys()
+    main_parameters = inspect.signature(main).parameters.keys()
+    assert parsed_args_keys == main_parameters