From ed2977d3c0e9ab3295a3bb47b844b2953d608197 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=BF=B7=E6=B8=A1?= <justjavac@gmail.com>
Date: Tue, 26 Mar 2019 19:42:26 +0800
Subject: Check `Event` constructor params (#1997)

---
 js/event_test.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'js/event_test.ts')

diff --git a/js/event_test.ts b/js/event_test.ts
index d0af40ea9..eb5521406 100644
--- a/js/event_test.ts
+++ b/js/event_test.ts
@@ -68,3 +68,15 @@ test(function eventPreventDefaultSuccess() {
   cancelableEvent.preventDefault();
   assertEquals(cancelableEvent.defaultPrevented, true);
 });
+
+test(function eventInitializedWithNonStringType() {
+  const type = undefined;
+  const event = new Event(type);
+
+  assertEquals(event.isTrusted, false);
+  assertEquals(event.target, null);
+  assertEquals(event.currentTarget, null);
+  assertEquals(event.type, "undefined");
+  assertEquals(event.bubbles, false);
+  assertEquals(event.cancelable, false);
+});
-- 
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