Made the provider list mandatory

Change-Id: I418acae29e7a4ed9ad21098a914f91a8396906eb

poppy/transport/validators/schemas/flavor.py

@@ -33,6 +33,7 @@ class FlavorSchema(schema_base.SchemaBase):
                     },
                     "providers": {
                         "type": "array",
+                        "required": True,
                         "items": {
                             "type": "object",
                             "properties": {
@@ -61,7 +62,7 @@ class FlavorSchema(schema_base.SchemaBase):
                                 }
                             }
                         },
-                        "minItems": 0
+                        "minItems": 1
                     }
                 }
             }

tests/functional/transport/pecan/controllers/data_create_flavor.json

@@ -49,9 +49,5 @@
                 ]
             }
         ]
-    },
-    "no_providers": {
-        "id" : "asia",
-        "providers" : []
     }
 }

tests/functional/transport/pecan/controllers/data_create_flavor_bad.json

@@ -31,5 +31,9 @@
                 ]
             }
         ]
+    },
+    "empty_provider_list": {
+        "id" : "empty_providers",
+        "providers" : []
     }
 }