Merge "Add ability validate yaml files before run tests"

sahara/tests/scenario/README.rst

@@ -61,6 +61,13 @@ section `How to write scenario files`_.
 
 ``tox -e scenario etc/scenario/sahara-ci`` will run tests from the test directory.
 
+Also, you can validate your yaml-files using flag ``--validate`` via command:
+
+.. sourcecode:: console
+
+    $ tox -e scenario -- --validate -V templatevars.ini etc/scenario/sahara-ci/credantials.yaml.mako etc/scenario/sahara-ci/vanilla-2.7.1.yaml.mako
+
+..
 
 Template variables
 ------------------

sahara/tests/scenario/runner.py

@@ -157,6 +157,8 @@ def main():
                         help='Path to the file with template variables')
     parser.add_argument('--verbose', default=False, action='store_true',
                         help='Increase output verbosity')
+    parser.add_argument('--validate', default=False, action='store_true',
+                        help='Validate yaml-files, tests will not be runned')
 
     args = parser.parse_args()
     scenario_arguments = args.scenario_arguments
@@ -200,6 +202,9 @@ def main():
     # validate config
     validation.validate(config)
 
+    if args.validate:
+        return
+
     set_defaults(config)
     credentials = config['credentials']
     network = config['network']

sahara/tests/scenario_unit/test_runner.py

@@ -269,3 +269,12 @@ class RunnerUnitTest(testtools.TestCase):
                     'sahara/tests/scenario_unit/templatevars_complete.ini',
                     'sahara/tests/scenario_unit/vanilla2_7_1.yaml.mako']
         runner.main()
+
+    @mock.patch('sys.exit', return_value=None)
+    def test_runner_validate(self, mock_sys):
+        sys.argv = ['sahara/tests/scenario/runner.py',
+                    '--validate',
+                    '-V',
+                    'sahara/tests/scenario_unit/templatevars_complete.ini',
+                    'sahara/tests/scenario_unit/vanilla2_7_1.yaml.mako']
+        runner.main()