perf_hooks: add HttpRequest statistics monitoring #28445

```js
const { PerformanceObserver, performance } = require('perf_hooks');
const http = require('http');

const obs = new PerformanceObserver((items) => {
  const entry = items.getEntries()[0];
  console.log(entry.name, entry.duration);
});
obs.observe({ entryTypes: ['http'] });

const server = http.Server(function(req, res) {
  server.close();
  res.writeHead(200);
  res.end('hello world\n');
});

server.listen(0, function() {
  const req = http.request({
    port: this.address().port,
    path: '/',
    method: 'POST'
  }).end();
});
```

PR-URL: https://github.com/nodejs/node/pull/28486
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

1 files changed, 58 insertions, 0 deletions

diff --git a/test/parallel/test-http-perf_hooks.js b/test/parallel/test-http-perf_hooks.js
new file mode 100644
index 0000000000..f28885e436
--- /dev/null
+++ b/test/parallel/test-http-perf_hooks.js
@@ -0,0 +1,58 @@
+'use strict';
+
+const common = require('../common');
+const assert = require('assert');
+const http = require('http');
+
+const { PerformanceObserver } = require('perf_hooks');
+
+const obs = new PerformanceObserver(common.mustCall((items) => {
+  const entry = items.getEntries()[0];
+  assert.strictEqual(entry.entryType, 'http');
+  assert.strictEqual(typeof entry.startTime, 'number');
+  assert.strictEqual(typeof entry.duration, 'number');
+}, 2));
+
+obs.observe({ entryTypes: ['http'] });
+
+const expected = 'Post Body For Test';
+const makeRequest = (options) => {
+  return new Promise((resolve, reject) => {
+    http.request(options, common.mustCall((res) => {
+      resolve();
+    })).on('error', reject).end(options.data);
+  });
+};
+
+const server = http.Server(common.mustCall((req, res) => {
+  let result = '';
+
+  req.setEncoding('utf8');
+  req.on('data', function(chunk) {
+    result += chunk;
+  });
+
+  req.on('end', common.mustCall(function() {
+    assert.strictEqual(result, expected);
+    res.writeHead(200);
+    res.end('hello world\n');
+  }));
+}, 2));
+
+server.listen(0, common.mustCall(async () => {
+  await Promise.all([
+    makeRequest({
+      port: server.address().port,
+      path: '/',
+      method: 'POST',
+      data: expected
+    }),
+    makeRequest({
+      port: server.address().port,
+      path: '/',
+      method: 'POST',
+      data: expected
+    })
+  ]);
+  server.close();
+}));