Fix introspection and schema definition

Author: tyranron

juniper/src/executor_tests/introspection/mod.rs

@@ -477,7 +477,7 @@ async fn scalar_introspection() {
             name
             kind
             description
-            specifiedByUrl
+            specifiedByURL
             fields { name }
             interfaces { name }
             possibleTypes { name }
@@ -513,7 +513,7 @@ async fn scalar_introspection() {
             "name": "SampleScalar",
             "kind": "SCALAR",
             "description": null,
-            "specifiedByUrl": null,
+            "specifiedByURL": null,
             "fields": null,
             "interfaces": null,
             "possibleTypes": null,

juniper/src/schema/schema.rs

@@ -1,6 +1,6 @@
 //! GraphQL [Type System Definitions][0].
 //!
-//! [0]: https://spec.graphql.org/September2025#sec-Appendix-Type-System-Definitions
+//! [0]:https://spec.graphql.org/September2025/#sec-Schema-Introspection.Schema-Introspection-Schema
 
 use arcstr::ArcStr;
 
@@ -387,21 +387,21 @@ impl<'a, S: ScalarValue + 'a> TypeType<'a, S> {
         }
     }
 
-    fn is_one_of(&self) -> bool {
+    fn is_one_of(&self) -> Option<bool> {
         match self {
             Self::Concrete(t) => match t {
                 // TODO: Implement once `@oneOf` is implemented for input objects.
-                MetaType::InputObject(InputObjectMeta { .. }) => todo!(),
+                MetaType::InputObject(InputObjectMeta { .. }) => Some(false),
                 MetaType::Enum(..)
                 | MetaType::Interface(..)
                 | MetaType::List(..)
                 | MetaType::Nullable(..)
                 | MetaType::Object(..)
                 | MetaType::Placeholder(..)
                 | MetaType::Scalar(..)
-                | MetaType::Union(..) => false,
+                | MetaType::Union(..) => None,
             },
-            Self::List(..) | Self::NonNull(..) => false,
+            Self::List(..) | Self::NonNull(..) => None,
         }
     }
 }

juniper/src/tests/introspection_tests.rs

@@ -289,7 +289,10 @@ async fn test_builtin_introspection_query() {
     let result = crate::introspect(&schema, &database, IntrospectionFormat::default()).unwrap();
     let expected = schema_introspection_result();
 
-    assert_eq!(result, (expected, vec![]));
+    assert_eq!(
+        serde_json::to_string_pretty(&result.0).unwrap(),
+        serde_json::to_string_pretty(&expected).unwrap(),
+    );
 }
 
 #[tokio::test]
@@ -305,5 +308,8 @@ async fn test_builtin_introspection_query_without_descriptions() {
         crate::introspect(&schema, &database, IntrospectionFormat::WithoutDescriptions).unwrap();
     let expected = schema_introspection_result_without_descriptions();
 
-    assert_eq!(result, (expected, vec![]));
+    assert_eq!(
+        serde_json::to_string_pretty(&result.0).unwrap(),
+        serde_json::to_string_pretty(&expected).unwrap(),
+    );
 }