enums: move Feature to EasyEnum

- schemas: add validator for guild_features type

litecord/enums.py

@@ -18,12 +18,16 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 """
 
 import inspect
+from typing import List, Any
 from enum import Enum, IntEnum
 
 
 class EasyEnum(Enum):
+    """Wrapper around the enum class for convenience."""
+
     @classmethod
-    def values(cls):
+    def values(cls) -> List[Any]:
+        """Return list of values for the given enum."""
         return [v.value for v in cls.__members__.values()]
 
 
@@ -210,7 +214,7 @@ class PremiumType:
     NONE = None
 
 
-class Feature(Enum):
+class Feature(EasyEnum):
     """Guild features."""
     invite_splash = 'INVITE_SPLASH'
     vip = 'VIP_REGIONS'

litecord/schemas.py

@@ -28,7 +28,7 @@ from .permissions import Permissions
 from .types import Color
 from .enums import (
     ActivityType, StatusType, ExplicitFilter, RelationshipType,
-    MessageNotifications, ChannelType, VerificationLevel
+    MessageNotifications, ChannelType, VerificationLevel, Features
 )
 
 from litecord.embed.schemas import EMBED_OBJECT
@@ -145,6 +145,9 @@ class LitecordValidator(Validator):
     def _validate_type_nickname(self, value: str) -> bool:
         return isinstance(value, str) and (len(value) < 32)
 
+    def _validate_type_guild_feature(self, value: str) -> bool:
+        return value in Features.values()
+
 
 def validate(reqjson: Union[Dict, List], schema: Dict,
              raise_err: bool = True) -> Dict: