Added nosetests.

pdbfixer/tests/test_cli.py

+#!/usr/bin/python
+
+#=============================================================================================
+# MODULE DOCSTRING
+#=============================================================================================
+
+"""
+Test command-line interface.
+
+"""
+
+#=============================================================================================
+# GLOBAL IMPORTS
+#=============================================================================================
+
+import tempfile
+import commands
+
+from nose.plugins.skip import Skip, SkipTest
+
+#=============================================================================================
+# UNIT TESTS
+#=============================================================================================
+
+def run_cli(arguments, expected_output=None):
+    [status, output] = commands.getstatusoutput('pdbfixer ' + arguments)
+
+    if status:
+        message  = "An error return value (%s) was obtained:\n" % str(status)
+        message += "\n"
+        message += output
+        message += "\n"
+        raise Exception(message)
+
+    if expected_output:
+        if output != expected_output:
+            message  = "Output differs from expected output.\n"
+            message += "\n"
+            message += "Expected output:\n"
+            message += expected_output
+            message += "\n"
+            message += "Actual output:\n"
+            message += output
+            message += "\n"
+            raise Exception(message)
+
+def test_help():
+    run_cli('--help')
+
+def test_pdbid():
+    run_cli('--pdbid 1LE1')
+
+def test_url():
+    run_cli('--url "http://www.rcsb.org/pdb/download/downloadFile.do?fileFormat=pdb&compression=NO&structureId=1LE1"')