diff --git a/run_tests.py b/run_tests.py
deleted file mode 100644
index 3fec742..0000000
--- a/run_tests.py
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/usr/bin/env python
-import sys
-
-import pytest
-
-if __name__ == "__main__":
-    # show output results from every test function
-    args = ["-v"]
-    # show the message output for skipped and expected failure tests
-    if len(sys.argv) > 1:
-        args.extend(sys.argv[1:])
-    print("pytest arguments: {}".format(args))
-    # call pytest and exit with the return code from pytest so that
-    # travis will fail correctly if tests fail
-    exit_res = pytest.main(args)
-    sys.exit(exit_res)
diff --git a/src/diffpy/nmf_mapping/tests/run.py b/src/diffpy/nmf_mapping/tests/run.py
deleted file mode 100644
index 389c772..0000000
--- a/src/diffpy/nmf_mapping/tests/run.py
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/usr/bin/env python
-##############################################################################
-#
-# (c) 2024 The Trustees of Columbia University in the City of New York.
-# All rights reserved.
-#
-# File coded by: Billinge Group members and community contributors.
-#
-# See GitHub contributions for a more detailed list of contributors.
-# https://github.com/diffpy/diffpy.nmf_mapping/graphs/contributors
-#
-# See LICENSE.rst for license information.
-#
-##############################################################################
-"""Convenience module for executing all unit tests with
-python -m \.tests.run
-"""
-
-import sys
-
-import pytest
-
-if __name__ == "__main__":
-    # show output results from every test function
-    args = ["-v"]
-    # show the message output for skipped and expected failure tests
-    if len(sys.argv) > 1:
-        args.extend(sys.argv[1:])
-    print("pytest arguments: {}".format(args))
-    # call pytest and exit with the return code from pytest
-    exit_res = pytest.main(args)
-    sys.exit(exit_res)
-
-# End of file