fix: ensure compat with [email protected]

Closes #887

Author: Xunnamius

src/index.ts

@@ -8,8 +8,7 @@ import type { NextApiHandler } from 'next';
 import type { Server, IncomingMessage, ServerResponse } from 'http';
 import type { RequestInit, Response as FetchReturnValue } from 'node-fetch';
 
-// @ts-ignore: ignore this (conditional) import so bundlers don't choke and die
-import type { apiResolver as NextApiResolver } from 'next/dist/server/api-utils/node';
+import type { apiResolver as NextApiResolver } from 'next/dist/server/api-utils/node/api-resolver';
 
 /**
  * This function is responsible for adding the headers sent along with every
@@ -166,9 +165,10 @@ export async function testApiHandler<NextResponseJsonType = any>({
 
   try {
     if (!apiResolver) {
-      // ? The following is for next@>=12.1.0:
-      // @ts-ignore: conditional import for earlier next versions
-      ({ apiResolver } = await import('next/dist/server/api-utils/node.js')
+      // ? The following is for next@>=12.5.4:
+      ({ apiResolver } = await import('next/dist/server/api-utils/node/api-resolver.js')
+        // ? The following is for next@<12.5.4 >=12.1.0:
+        .catch(tryImport('next/dist/server/api-utils/node.js'))
         // ? The following is for next@<12.1.0 >=11.1.0:
         .catch(tryImport('next/dist/server/api-utils.js'))
         // ? The following is for next@<11.1.0 >=9.0.6:

test/integration-client-next.test.ts

@@ -28,8 +28,9 @@ const NEXT_VERSIONS_UNDER_TEST = satisfiesRange(process.versions.node, '<15') ?
   ['next@^10', 'react@^17'],
   ['[email protected]', 'react@^17'],
   ['next@^11', 'react@^17'],
-  ['[email protected]', 'react@^17'],
-  ['next@latest', 'react@^17']
+  ['[email protected]', 'react@^18'],
+  ['[email protected]', 'react@^18'],
+  ['next@latest', 'react@^18']
 ]
 :
 [
@@ -41,6 +42,7 @@ const NEXT_VERSIONS_UNDER_TEST = satisfiesRange(process.versions.node, '<15') ?
   ['[email protected]'],  // ? See issue #295
   ['next@^11'],     // ? Latest version 11 release
   ['next@^12.0.x'], // ? See issue #487
+  ['next@^13.5.3'], // ? See issue #887
   ['next@latest']   // ? Latest release
 ];