add additional benchmark

see graphql#3754 (comment)

benchmark/list-async-nested-benchmark.js

@@ -0,0 +1,34 @@
+import { execute } from 'graphql/execution/execute.js';
+import { parse } from 'graphql/language/parser.js';
+import { buildSchema } from 'graphql/utilities/buildASTSchema.js';
+
+const schema = buildSchema(`
+ type Query {
+ listField: [Object]
+ }
+
+ type Object {
+ field: String
+ }
+`);
+const document = parse('{ listField { field } }');
+
+function listField() {
+ const results = [];
+ for (let index = 0; index < 1; index++) {
+ results.push(Promise.resolve({ field: Promise.resolve(index) }));
+ }
+ return results;
+}
+
+export const benchmark = {
+ name: 'Execute Asynchronous List Field with Nested Asynchronous Fields',
+ count: 10,
+ async measure() {
+ await execute({
+ schema,
+ document,
+ rootValue: { listField },
+ });
+ },
+};