Add validation of RRSet Type

Change-Id: I91861dbbd9f74edd76cb2d2c8cf3ac9507278aba
Closes-Bug: #1443348

designate/objects/recordset.py

@@ -129,9 +129,24 @@ class RecordSet(base.DictObjectMixin, base.PersistentObjectMixin,
 
     def validate(self):
 
+        errors = ValidationErrorList()
+
         # Get the right classes (e.g. A for Recordsets with type: 'A')
-        record_list_cls = self.obj_cls_from_name('%sList' % self.type)
+        try:
-        record_cls = self.obj_cls_from_name(self.type)
+            record_list_cls = self.obj_cls_from_name('%sList' % self.type)
+            record_cls = self.obj_cls_from_name(self.type)
+        except KeyError as e:
+            e = ValidationError()
+            e.path = ['recordset', 'type']
+            e.validator = 'value'
+            e.validator_value = [self.type]
+            e.message = ("'%(type)s' is not a supported Record type"
+                         % {'type': self.type})
+            # Add it to the list for later
+            errors.append(e)
+            raise exceptions.InvalidObject(
+                "Provided object does not match "
+                "schema", errors=errors, object=self)
 
         # Get any rules that the record type imposes on the record
         changes = record_cls.get_recordset_schema_changes()
@@ -142,7 +157,6 @@ class RecordSet(base.DictObjectMixin, base.PersistentObjectMixin,
             old_fields = deepcopy(self.FIELDS)
             self.FIELDS = utils.deep_dict_merge(self.FIELDS, changes)
 
-        errors = ValidationErrorList()
         error_indexes = []
         # Copy these for safekeeping
         old_records = deepcopy(self.records)

designate/tests/test_api/test_v2/test_recordsets.py

@@ -107,6 +107,29 @@ class ApiV2RecordSetsTest(ApiV2TestCase):
         self._assert_exception(
             'invalid_object', 400, self.client.post_json, url, body)
 
+    def test_create_recordset_with_invalid_type(self):
+        # Prepare a RecordSet fixture
+        body = self.get_recordset_fixture(
+            self.domain['name'],
+            'A',
+            fixture=0,
+            values={
+                'name': 'name.%s' % self.domain['name'],
+                'records': [
+                    '192.0.2.1',
+                    '192.0.2.2',
+                ]
+            }
+        )
+
+        del body['type']
+
+        url = '/zones/%s/recordsets' % self.domain['id']
+
+        # Ensure it fails with a 400
+        self._assert_exception(
+            'invalid_object', 400, self.client.post_json, url, body)
+
     def test_create_recordset_invalid_id(self):
         self._assert_invalid_uuid(self.client.post, '/zones/%s/recordsets')