chore: fix Jest polyfills

.changeset/tough-starfishes-tickle.md

@@ -0,0 +1,5 @@
+---
+"@apollo/graphql-testing-library": patch
+---
+
+Use 50ms as the delay value in Node processes, since 20ms was still resulting in occasional batched renders.

.storybook/public/mockServiceWorker.js

@@ -8,7 +8,7 @@
  * - Please do NOT serve this file on production.
  */
 
-const PACKAGE_VERSION = '2.3.5'
+const PACKAGE_VERSION = '2.4.9'
 const INTEGRITY_CHECKSUM = '26357c79639bfa20d64c0efca2a87423'
 const IS_MOCKED_RESPONSE = Symbol('isMockedResponse')
 const activeClientIds = new Set()

jest.polyfills.js

@@ -27,8 +27,8 @@ Object.defineProperties(globalThis, {
   File: { value: File },
   Headers: { value: Headers },
   FormData: { value: FormData },
-  Request: { value: Request },
-  Response: { value: Response },
+  Request: { value: Request, configurable: true },
+  Response: { value: Response, configurable: true },
 });
 
 // Symbol.dispose is not defined

src/__tests__/handlers.test.tsx

@@ -342,6 +342,6 @@ describe("unit tests", () => {
 
     // @ts-expect-error intentionally accessing a property that has been
     // excluded from the type
-    expect(ecommerceHandler.replaceDelay["currentDelay"]).toBe(20);
+    expect(ecommerceHandler.replaceDelay["currentDelay"]).toBe(50);
   });
 });

src/handlers.ts

@@ -105,7 +105,7 @@ function createHandlerFromSchema<TResolvers>(
   // This sometimes caused multipart responses to be batched into a single
   // render by React, so we'll use a longer delay of 20ms.
   if (_delay === "real" && isNodeProcess()) {
-    _delay = 20;
+    _delay = 50;
   }
 
   let testSchema: GraphQLSchema = schema;

src/utilities.ts

@@ -72,7 +72,11 @@ function createDefaultResolvers(typesMap: Map<string, Set<string>>) {
   for (const key of typesMap.keys()) {
     defaultResolvers[key] = {
       __resolveType(data) {
-        return data.__typename || typesMap.get(key)?.values().next().value;
+        return (
+          // fallback to an empty string here to satisfy TS, since
+          // all keys in typesMap should have '
+          data.__typename || typesMap.get(key)?.values().next().value || ""
+        );
       },
     };
   }