add unit testing and fix typo

unit_tests/utilities/test_zaza_utilities_bundle.py

@@ -106,3 +106,16 @@ class TestUtilitiesBundle(ut_utils.BaseTestCase):
         expected = yaml.safe_load(TEST_BUNDLE_WITHOUT_PLACEMENT)
 
         self.assertEqual(expected, flattened)
+
+    def test_parser(self):
+        args = bundle.parse_args([
+            '-i', 'bundle.yaml'])
+        self.assertEqual(args.input, 'bundle.yaml')
+        self.assertEqual(args.output, '/dev/stdout')
+
+    def test_parser_output(self):
+        args = bundle.parse_args([
+            '-i', 'bundle.yaml',
+            '-o', 'bundle_out.yaml'])
+        self.assertEqual(args.input, 'bundle.yaml')
+        self.assertEqual(args.output, 'bundle_out.yaml')

zaza/utilities/bundle.py

@@ -21,7 +21,7 @@ import sys
 
 def remove_machine_specification(input_yaml):
     """
-    Will remove the machien specifications from a supplied bundle.
+    Will remove the machine specifications from a supplied bundle.
 
     :param input_yaml: Juju bundle to strip machinens from
     :type input_yaml: dict