fix: make Performance global an EventTarget

This commit updates the Performance global to extend
EventTarget.

1 files changed, 13 insertions, 0 deletions

diff --git a/cli/tests/unit/performance_test.ts b/cli/tests/unit/performance_test.ts
index 917546e2c..687bb024d 100644
--- a/cli/tests/unit/performance_test.ts
+++ b/cli/tests/unit/performance_test.ts
@@ -140,3 +140,16 @@ Deno.test(function performanceMeasureIllegalConstructor() {
     "Illegal constructor",
   );
 });
+
+Deno.test(function performanceIsEventTarget() {
+  assert(performance instanceof EventTarget);
+
+  return new Promise((resolve) => {
+    const handler = () => {
+      resolve();
+    };
+
+    performance.addEventListener("test", handler, { once: true });
+    performance.dispatchEvent(new Event("test"));
+  });
+});