diff --git a/diffpy/pdfmorph/tests/run.py b/diffpy/pdfmorph/tests/run.py
new file mode 100644
index 00000000..c4a1fd4c
--- /dev/null
+++ b/diffpy/pdfmorph/tests/run.py
@@ -0,0 +1,32 @@
+
+#!/usr/bin/env python
+##############################################################################
+#
+# diffpy.structure  by DANSE Diffraction group
+#                   Simon J. L. Billinge
+#                   (c) 2010 Trustees of the Columbia University
+#                   in the City of New York.  All rights reserved.
+#
+# File coded by:    Pavol Juhas
+#
+# See AUTHORS.txt for a list of people who contributed.
+# See LICENSE_DANSE.txt for license information.
+#
+##############################################################################
+
+"""Convenience module for executing all unit tests with
+python -m diffpy.structure.tests.run
+"""
+
+
+if __name__ == '__main__':
+    import sys
+    # show warnings by default
+    if not sys.warnoptions:
+        import os, warnings
+        warnings.simplefilter("default")
+        # also affect subprocesses
+        os.environ["PYTHONWARNINGS"] = "default"
+    from diffpy.pdfmorph.tests import test
+    # produce zero exit code for a successful test
+    sys.exit(not test().wasSuccessful())