test: add test for async contexts in PerformanceObserver

This test proves that the PerformanceObserver callback gets called with
the async context of the callsite of performance.mark()/measure() and
therefore AsyncLocalStorage can be used inside a PerformanceObserver.

PR: #36343

PR-URL: #36343
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Rich Trott <[email protected]>

Author: ZauberNerd

test/parallel/test-performanceobserver-asynccontext.js

@@ -0,0 +1,37 @@
+'use strict';
+
+const common = require('../common');
+const assert = require('assert');
+const {
+  performance,
+  PerformanceObserver,
+} = require('perf_hooks');
+const {
+  executionAsyncId,
+  triggerAsyncId,
+  executionAsyncResource,
+} = require('async_hooks');
+
+// Test Non-Buffered PerformanceObserver retains async context
+{
+  const observer =
+    new PerformanceObserver(common.mustCall(callback));
+
+  const initialAsyncId = executionAsyncId();
+  let asyncIdInTimeout;
+  let asyncResourceInTimeout;
+
+  function callback(list) {
+    assert.strictEqual(triggerAsyncId(), initialAsyncId);
+    assert.strictEqual(executionAsyncId(), asyncIdInTimeout);
+    assert.strictEqual(executionAsyncResource(), asyncResourceInTimeout);
+    observer.disconnect();
+  }
+  observer.observe({ entryTypes: ['mark'] });
+
+  setTimeout(() => {
+    asyncIdInTimeout = executionAsyncId();
+    asyncResourceInTimeout = executionAsyncResource();
+    performance.mark('test1');
+  }, 0);
+}