feat: window.onunload (#3023)

1 files changed, 15 insertions, 6 deletions

diff --git a/cli/tests/034_onload/main.ts b/cli/tests/034_onload/main.ts
index 68851950a..c3c6bdcc9 100644
--- a/cli/tests/034_onload/main.ts
+++ b/cli/tests/034_onload/main.ts
@@ -1,14 +1,23 @@
+import { assert } from "../../../js/deps/https/deno.land/std/testing/asserts.ts";
 import "./imported.ts";
 
-window.addEventListener(
-  "load",
-  (e: Event): void => {
-    console.log(`got ${e.type} event in event handler (main)`);
-  }
-);
+const eventHandler = (e: Event): void => {
+  assert(!e.cancelable);
+  console.log(`got ${e.type} event in event handler (main)`);
+};
+
+window.addEventListener("load", eventHandler);
+
+window.addEventListener("unload", eventHandler);
 
 window.onload = (e: Event): void => {
+  assert(!e.cancelable);
   console.log(`got ${e.type} event in onload function`);
 };
 
+window.onunload = (e: Event): void => {
+  assert(!e.cancelable);
+  console.log(`got ${e.type} event in onunload function`);
+};
+
 console.log("log from main");