chore(internal): add ecosystem test for qs reproduction

Author: RobertCraigie

ecosystem-tests/cli.ts

@@ -34,6 +34,14 @@ const projectRunners = {
     await installPackage();
     await run('node', ['test.js']);
   },
+  'nodenext-tsup': async () => {
+    await installPackage();
+    await run('npm', ['run', 'build']);
+
+    if (state.live) {
+      await run('npm', ['run', 'main']);
+    }
+  },
   'ts-browser-webpack': async () => {
     await installPackage();
 

ecosystem-tests/nodenext-tsup/index.ts

@@ -0,0 +1,41 @@
+import { OpenAI } from 'openai';
+
+const openai = new OpenAI();
+
+function assertEqual(actual: any, expected: any) {
+  if (actual === expected) {
+    return;
+  }
+
+  console.error('expected', expected);
+  console.error('actual  ', actual);
+  throw new Error('expected values to be equal');
+}
+
+async function main() {
+  const completion = await openai.chat.completions.create({
+    model: 'gpt-4o-mini',
+    messages: [
+      {
+        role: 'user',
+        content: 'What is the capital of the United States?',
+      },
+    ],
+  });
+  // smoke test for responses
+  if (!completion.choices[0]?.message.content) {
+    console.dir(completion, { depth: 4 });
+    throw new Error('no response content!');
+  }
+
+  assertEqual(
+    decodeURIComponent((openai as any).stringifyQuery({ foo: { nested: { a: true, b: 'foo' } } })),
+    'foo[nested][a]=true&foo[nested][b]=foo',
+  );
+  assertEqual(
+    decodeURIComponent((openai as any).stringifyQuery({ foo: { nested: { a: ['hello', 'world'] } } })),
+    'foo[nested][a][]=hello&foo[nested][a][]=world',
+  );
+}
+
+main();