From 1673f69f08223dbf0e448388a9a8d181caa14d0f Mon Sep 17 00:00:00 2001
From: Evan Huus <evan.huus@shopify.com>
Date: Thu, 29 Apr 2021 19:14:21 +0000
Subject: [PATCH] Fix introspection of default input objects

It seems that the intent was to allow default input object values to be
specified in snake_case, but we weren't camelCasing them on output which
was leading to issues.

Tweak an existing spec to cover this case (as well as the "enums
specifed as values not names" case), then add the missing call to
camelize.
---
 lib/graphql/schema/input_object.rb       |  4 ++--
 spec/graphql/schema/input_object_spec.rb | 12 ++++++------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/lib/graphql/schema/input_object.rb b/lib/graphql/schema/input_object.rb
index ca0e3ee56e..adfbe70822 100644
--- a/lib/graphql/schema/input_object.rb
+++ b/lib/graphql/schema/input_object.rb
@@ -226,8 +226,8 @@ def coerce_input(value, ctx)
         # It's funny to think of a _result_ of an input object.
         # This is used for rendering the default value in introspection responses.
         def coerce_result(value, ctx)
-          # Allow the application to provide values as :symbols, and convert them to the strings
-          value = value.reduce({}) { |memo, (k, v)| memo[k.to_s] = v; memo }
+          # Allow the application to provide values as :snake_symbols, and convert them to the camelStrings
+          value = value.reduce({}) { |memo, (k, v)| memo[Member::BuildType.camelize(k.to_s)] = v; memo }
 
           result = {}
 
diff --git a/spec/graphql/schema/input_object_spec.rb b/spec/graphql/schema/input_object_spec.rb
index 35eec220f1..cabb79d50e 100644
--- a/spec/graphql/schema/input_object_spec.rb
+++ b/spec/graphql/schema/input_object_spec.rb
@@ -493,18 +493,18 @@ def self.resolve_type(type, obj, ctx)
     it "introspects in GraphQL language with enums" do
       class InputDefaultSchema < GraphQL::Schema
         class Letter < GraphQL::Schema::Enum
-          value "A"
-          value "B"
+          value "A", value: 1
+          value "B", value: 2
         end
 
         class InputObj < GraphQL::Schema::InputObject
-          argument :a, Letter, required: false
-          argument :b, Letter, required: false
+          argument :arg_a, Letter, required: false
+          argument :arg_b, Letter, required: false
         end
 
         class Query < GraphQL::Schema::Object
           field :i, Int, null: true do
-            argument :arg, InputObj, required: false, default_value: { a: "A", b: "B" }
+            argument :arg, InputObj, required: false, default_value: { arg_a: 1, arg_b: 2 }
           end
         end
 
@@ -524,7 +524,7 @@ class Query < GraphQL::Schema::Object
         }
       }
       "
-      assert_equal "{a: A, b: B}", res["data"]["__type"]["fields"].first["args"].first["defaultValue"]
+      assert_equal "{argA: A, argB: B}", res["data"]["__type"]["fields"].first["args"].first["defaultValue"]
     end
   end