Add keys validation testcase in substitution_mapping class

Add keys validation in class of substitution_mapping according to
specification of
http://docs.oasis-open.org/tosca/TOSCA-Simple-Profile-YAML/v1.0/TOSCA-Simple-Profile-YAML-v1.0.html:
1) Substitution mapping only supports keys of node_type, capabilities
and requirements;
2) The key of node_type is required, the others are optional.

JIRA:PARSER-80

Change-Id: Icd3284349175429e5ba5e52814819a6790f0e831
Signed-off-by: shangxdy <shang.xiaodong@zte.com.cn>
(cherry picked from commit 44540b6c2b16637659099c65e31309fc7573ba7d)

1 files changed, 43 insertions, 0 deletions

diff --git a/tosca2heat/tosca-parser/toscaparser/tests/test_topology_template.py b/tosca2heat/tosca-parser/toscaparser/tests/test_topology_template.py
index 6e3eb62..edb834b 100644
--- a/tosca2heat/tosca-parser/toscaparser/tests/test_topology_template.py
+++ b/tosca2heat/tosca-parser/toscaparser/tests/test_topology_template.py
@@ -12,9 +12,12 @@
 
 import os
 
+from toscaparser.common import exception
+from toscaparser.substitution_mappings import SubstitutionMappings
 from toscaparser.tests.base import TestCase
 from toscaparser.topology_template import TopologyTemplate
 from toscaparser.tosca_template import ToscaTemplate
+from toscaparser.utils.gettextutils import _
 import toscaparser.utils.yamlparser
 
 YAML_LOADER = toscaparser.utils.yamlparser.load_yaml
@@ -162,3 +165,43 @@ class TopologyTemplateTest(TestCase):
         self.assertEqual(
             len(system_tosca_template.
                 nested_tosca_templates_with_topology), 4)
+
+    def test_invalid_keyname(self):
+        tpl_snippet = '''
+        substitution_mappings:
+          node_type: example.DatabaseSubsystem
+          capabilities:
+            database_endpoint: [ db_app, database_endpoint ]
+          requirements:
+            receiver1: [ tran_app, receiver1 ]
+          invalid_key: 123
+        '''
+        sub_mappings = (toscaparser.utils.yamlparser.
+                        simple_parse(tpl_snippet))['substitution_mappings']
+        expected_message = _(
+            'SubstitutionMappings contains unknown field '
+            '"invalid_key". Refer to the definition '
+            'to verify valid values.')
+        err = self.assertRaises(
+            exception.UnknownFieldError,
+            lambda: SubstitutionMappings(sub_mappings, None, None,
+                                         None, None, None))
+        self.assertEqual(expected_message, err.__str__())
+
+    def test_missing_required_keyname(self):
+        tpl_snippet = '''
+        substitution_mappings:
+          capabilities:
+            database_endpoint: [ db_app, database_endpoint ]
+          requirements:
+            receiver1: [ tran_app, receiver1 ]
+        '''
+        sub_mappings = (toscaparser.utils.yamlparser.
+                        simple_parse(tpl_snippet))['substitution_mappings']
+        expected_message = _('SubstitutionMappings used in topology_template '
+                             'is missing required field "node_type".')
+        err = self.assertRaises(
+            exception.MissingRequiredFieldError,
+            lambda: SubstitutionMappings(sub_mappings, None, None,
+                                         None, None, None))
+        self.assertEqual(expected_message, err.__str__())