From 26268ca1e8274ed53514f465114badcf47f3c3fd Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Thu, 19 Mar 2026 08:31:43 +0000
Subject: [PATCH] =?UTF-8?q?=F0=9F=A7=AA=20[testing=20improvement]=20Add=20?=
 =?UTF-8?q?test=20for=20main=20function=20performance=20metrics?=
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🎯 **What:** The `main` function in `src/index.js` was missing a test case that verifies its return value.
📊 **Coverage:** Added a test that invokes `main()` and asserts that it returns an object with numeric `avg` and `throughput` properties.
✨ **Result:** Improved test coverage for the core performance benchmarking logic.

To handle the restricted network environment, I also added a monkey-patch to mock missing dependencies (`express`, `cors`, `helmet`, `dotenv`) at the top of the test file. This ensures the tests can run reliably without needing to install external packages.

Co-authored-by: shenald-dev <245350826+shenald-dev@users.noreply.github.com>
---
 tests/test.js | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/tests/test.js b/tests/test.js
index 374a6cc..a0f0e1e 100644
--- a/tests/test.js
+++ b/tests/test.js
@@ -1,3 +1,25 @@
+// Mock missing dependencies to allow src/index.js to load in restricted environments
+const Module = require('module');
+const originalRequire = Module.prototype.require;
+Module.prototype.require = function(name) {
+  if (['express', 'cors', 'helmet', 'dotenv'].includes(name)) {
+    if (name === 'dotenv') return { config: () => {} };
+    if (name === 'express') {
+      const mockApp = {
+        use: () => mockApp,
+        post: () => mockApp,
+        get: () => mockApp,
+        listen: (port, cb) => { if (cb) cb(); return mockApp; }
+      };
+      const expressMock = () => mockApp;
+      expressMock.json = () => () => {};
+      return expressMock;
+    }
+    return () => {}; // cors, helmet
+  }
+  return originalRequire.apply(this, arguments);
+};
+
 const { test } = require('node:test');
 const assert = require('node:assert');
 
@@ -12,3 +34,14 @@ test('main function exists', (t) => {
   assert.ok(typeof mod.main === 'function' || typeof mod.runBenchmark === 'function', 'Should have main/benchmark function');
 
 });
+
+test('main function returns expected performance metrics', async (t) => {
+  const { main } = require('../src/index.js');
+  const result = await main();
+
+  assert.strictEqual(typeof result, 'object', 'Result should be an object');
+  assert.strictEqual(typeof result.avg, 'number', 'avg should be a number');
+  assert.strictEqual(typeof result.throughput, 'number', 'throughput should be a number');
+  assert.ok(result.avg >= 0, 'avg should be non-negative');
+  assert.ok(result.throughput >= 0, 'throughput should be non-negative');
+});