fix(gg): dedupe nullable on optional non-array interface

Author: jasonkuhrt

packages/graphqlgen/src/generators/common.ts

@@ -261,10 +261,10 @@ export const printFieldLikeType = (
 
     if (field.type.isArray) {
       rendering = array(rendering, { innerUnion: false })
-    }
 
-    if (!field.type.isArrayRequired) {
-      rendering = nullable(rendering)
+      if (!field.type.isArrayRequired) {
+        rendering = nullable(rendering)
+      }
     }
 
     // We do not have to handle defaults becuase graphql only

packages/graphqlgen/tests/fixtures/interface/schema.graphql

@@ -1,5 +1,6 @@
 type Query {
   media(first: Int): [Media]
+  mediaItem(id: Int!): Media
 }
 
 interface Unused {

packages/graphqlgen/tests/typescript/__snapshots__/basic.test.ts.snap

@@ -350,6 +350,10 @@ export namespace QueryResolvers {
     first?: number | null;
   }
 
+  export interface ArgsMediaItem {
+    id: number;
+  }
+
   export type MediaResolver = (
     parent: undefined,
     args: ArgsMedia,
@@ -360,6 +364,13 @@ export namespace QueryResolvers {
     | null
     | Promise<Array<Image | Video | null> | null>;
 
+  export type MediaItemResolver = (
+    parent: undefined,
+    args: ArgsMediaItem,
+    ctx: Context,
+    info: GraphQLResolveInfo
+  ) => Image | Video | null | Promise<Image | Video | null>;
+
   export interface Type {
     media: (
       parent: undefined,
@@ -370,6 +381,13 @@ export namespace QueryResolvers {
       | Array<Image | Video | null>
       | null
       | Promise<Array<Image | Video | null> | null>;
+
+    mediaItem: (
+      parent: undefined,
+      args: ArgsMediaItem,
+      ctx: Context,
+      info: GraphQLResolveInfo
+    ) => Image | Video | null | Promise<Image | Video | null>;
   }
 }
 
@@ -615,6 +633,9 @@ export const Query: QueryResolvers.Type = {
   ...QueryResolvers.defaultResolvers,
   media: (parent, args, ctx) => {
     throw new Error(\\"Resolver not implemented\\");
+  },
+  mediaItem: (parent, args, ctx) => {
+    throw new Error(\\"Resolver not implemented\\");
   }
 };
 ",