Improved tests. Improved schema.type getter. Remove duplicated Scalar code

graphene/core/classtypes/base.py

@@ -1,7 +1,7 @@
 import copy
 import inspect
-from functools import partial
 from collections import OrderedDict
+from functools import partial
 
 import six
 

graphene/core/schema.py

@@ -38,22 +38,20 @@ class Schema(object):
     def __repr__(self):
         return '<Schema: %s (%s)>' % (str(self.name), hash(self))
 
-    def T(self, object_type):
-        if not object_type:
+    def T(self, _type):
+        if not _type:
             return
-        if inspect.isclass(object_type) and issubclass(
-                object_type, (BaseType, ClassType)) or isinstance(
-                object_type, BaseType):
-            if object_type not in self._types:
-                internal_type = object_type.internal_type(self)
-                self._types[object_type] = internal_type
-                is_objecttype = inspect.isclass(
-                    object_type) and issubclass(object_type, ClassType)
-                if is_objecttype:
-                    self.register(object_type)
-            return self._types[object_type]
+        is_classtype = inspect.isclass(_type) and issubclass(_type, ClassType)
+        is_instancetype = isinstance(_type, BaseType)
+        if is_classtype or is_instancetype:
+            if _type not in self._types:
+                internal_type = _type.internal_type(self)
+                self._types[_type] = internal_type
+                if is_classtype:
+                    self.register(_type)
+            return self._types[_type]
         else:
-            return object_type
+            return _type
 
     @property
     def executor(self):

graphene/core/types/__init__.py

@@ -4,7 +4,7 @@ from .definitions import List, NonNull
 # Compatibility import
 from .objecttype import Interface, ObjectType, Mutation, InputObjectType
 
-from .scalars import String, ID, Boolean, Int, Float, Scalar
+from .scalars import String, ID, Boolean, Int, Float
 from .field import Field, InputField
 
 __all__ = [
@@ -26,5 +26,4 @@ __all__ = [
     'ID',
     'Boolean',
     'Int',
-    'Float',
-    'Scalar']
+    'Float']

graphene/core/types/scalars.py

@@ -1,5 +1,5 @@
 from graphql.core.type import (GraphQLBoolean, GraphQLFloat, GraphQLID,
-                               GraphQLInt, GraphQLScalarType, GraphQLString)
+                               GraphQLInt, GraphQLString)
 
 from .base import MountedType
 
@@ -22,20 +22,3 @@ class ID(MountedType):
 
 class Float(MountedType):
     T = GraphQLFloat
-
-
-class Scalar(MountedType):
-
-    @classmethod
-    def internal_type(cls, schema):
-        serialize = getattr(cls, 'serialize')
-        parse_literal = getattr(cls, 'parse_literal')
-        parse_value = getattr(cls, 'parse_value')
-
-        return GraphQLScalarType(
-            name=cls.__name__,
-            description=cls.__doc__,
-            serialize=serialize,
-            parse_value=parse_value,
-            parse_literal=parse_literal
-        )

graphene/core/types/tests/test_field.py

@@ -13,7 +13,7 @@ from ..scalars import String
 def test_field_internal_type():
     resolver = lambda *args: 'RESOLVED'
 
-    field = Field(String, description='My argument', resolver=resolver)
+    field = Field(String(), description='My argument', resolver=resolver)
 
     class Query(ObjectType):
         my_field = field

graphene/core/types/tests/test_scalars.py

@@ -1,9 +1,9 @@
 from graphql.core.type import (GraphQLBoolean, GraphQLFloat, GraphQLID,
-                               GraphQLInt, GraphQLScalarType, GraphQLString)
+                               GraphQLInt, GraphQLString)
 
 from graphene.core.schema import Schema
 
-from ..scalars import ID, Boolean, Float, Int, Scalar, String
+from ..scalars import ID, Boolean, Float, Int, String
 
 schema = Schema()
 
@@ -26,29 +26,3 @@ def test_id_scalar():
 
 def test_float_scalar():
     assert schema.T(Float()) == GraphQLFloat
-
-
-def test_custom_scalar():
-    import datetime
-    from graphql.core.language import ast
-
-    class DateTimeScalar(Scalar):
-        '''DateTimeScalar Documentation'''
-        @staticmethod
-        def serialize(dt):
-            return dt.isoformat()
-
-        @staticmethod
-        def parse_literal(node):
-            if isinstance(node, ast.StringValue):
-                return datetime.datetime.strptime(
-                    node.value, "%Y-%m-%dT%H:%M:%S.%f")
-
-        @staticmethod
-        def parse_value(value):
-            return datetime.datetime.strptime(value, "%Y-%m-%dT%H:%M:%S.%f")
-
-    scalar_type = schema.T(DateTimeScalar)
-    assert isinstance(scalar_type, GraphQLScalarType)
-    assert scalar_type.name == 'DateTimeScalar'
-    assert scalar_type.description == 'DateTimeScalar Documentation'