fix: resolve interface list types

miragejs · Jun 7, 2022 · d82f525 · d82f525
1 parent 64c7870
commit d82f525
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Showing 3 changed files with 31 additions and 3 deletions.
diff --git a/__tests__/unit/resolvers/mirage-field-resolver-test.js b/__tests__/unit/resolvers/mirage-field-resolver-test.js
@@ -106,6 +106,23 @@ describe("Unit | resolvers | mirage field resolver", function () {
         args,
         context,
         info,
+        false,
+        type
+      );
+    });
+
+    it("can resolve interface list types", function () {
+      const type = typeMap.TestInterface;
+      const info = { returnType: queryFields.testInterfaceMultiple.type };
+
+      mirageGraphQLFieldResolver(obj, args, context, info);
+
+      expect(resolveInterface).toHaveBeenCalledWith(
+        obj,
+        args,
+        context,
+        info,
+        true,
         type
       );
     });

diff --git a/lib/resolvers/interface.js b/lib/resolvers/interface.js
@@ -1,3 +1,4 @@
+import resolveList from "./list";
 import resolveObject from "./object";
 
 function getTypeFromInlineFragment(info) {
@@ -39,15 +40,25 @@ function resolveFromImplementations(obj, args, context, info, type) {
  * @param {Object} args
  * @param {Object} context
  * @param {Object} info
+ * @param {Boolean} isList
  * @param {Object} type An unwrapped type.
  * @see {@link https://graphql.org/learn/execution/#root-fields-resolvers}
  * @see resolveObject
  * @returns {Object} A record from Mirage's database.
  */
-export default function resolveInterface(obj, args, context, info, type) {
+export default function resolveInterface(
+  obj,
+  args,
+  context,
+  info,
+  isList,
+  type
+) {
   const implType = getTypeFromInlineFragment(info);
 
-  return implType
+  return isList
+    ? resolveList(obj, args, context, info, type)
+    : implType
     ? resolveObject(obj, args, context, info, implType)
     : resolveFromImplementations(obj, args, context, info, type);
 }
diff --git a/lib/resolvers/mirage.js b/lib/resolvers/mirage.js
@@ -30,7 +30,7 @@ export default function mirageGraphQLFieldResolver(obj, args, context, info) {
   let { isList, type } = unwrapType(info.returnType);
 
   return isInterfaceType(type)
-    ? resolveInterface(obj, args, context, info, type)
+    ? resolveInterface(obj, args, context, info, isList, type)
     : isUnionType(type)
     ? resolveUnion(obj, args, context, info, isList, type)
     : !isObjectType(type)