Nicer stringification of GraphQLFields

Author: Cito

README.md

@@ -13,7 +13,7 @@ a query language for APIs created by Facebook.
 [![Code Style](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/ambv/black)
 
 The current version 1.0.2 of GraphQL-core-next is up-to-date with GraphQL.js version
-14.2.1. All parts of the API are covered by an extensive test suite of currently 1742
+14.2.1. All parts of the API are covered by an extensive test suite of currently 1746
 unit tests.
 
 

graphql/type/definition.py

@@ -446,6 +446,12 @@ def __init__(
         self.description = description
         self.ast_node = ast_node
 
+    def __repr__(self):
+        return f"<{self.__class__.__name__} {self.type!r}>"
+
+    def __str__(self):
+        return f"Field: {self.type}"
+
     def __eq__(self, other):
         return self is other or (
             isinstance(other, GraphQLField)

tests/type/test_definition.py

@@ -10,11 +10,13 @@
     GraphQLField,
     GraphQLInputField,
     GraphQLInputObjectType,
+    GraphQLInt,
     GraphQLInterfaceType,
     GraphQLList,
     GraphQLNonNull,
     GraphQLObjectType,
     GraphQLScalarType,
+    GraphQLString,
     GraphQLUnionType,
 )
 
@@ -628,3 +630,17 @@ def simple_types_have_repr():
             repr(GraphQLList(ListOfScalarsType))
             == "<GraphQLList <GraphQLList <GraphQLScalarType 'Scalar'>>>"
         )
+
+    def stringifies_fields():
+        assert str(GraphQLField(GraphQLNonNull(GraphQLString))) == "Field: String!"
+        assert str(GraphQLField(GraphQLList(GraphQLInt))) == "Field: [Int]"
+
+    def fields_have_repr():
+        assert (
+            repr(GraphQLField(GraphQLNonNull(GraphQLString)))
+            == "<GraphQLField <GraphQLNonNull <GraphQLScalarType 'String'>>>"
+        )
+        assert (
+            repr(GraphQLField(GraphQLList(GraphQLInt)))
+            == "<GraphQLField <GraphQLList <GraphQLScalarType 'Int'>>>"
+        )