Upstream dom/ tests from jsdom
diff --git a/dom/window-extends-event-target.html b/dom/window-extends-event-target.html new file mode 100644 index 0000000..3b69032 --- /dev/null +++ b/dom/window-extends-event-target.html
@@ -0,0 +1,55 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>Window extends EventTarget</title> +<link rel="help" href="https://github.com/jsdom/jsdom/issues/2830"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> + +<body> +<script> +"use strict"; + +test(() => { + + assert_equals(window.addEventListener, EventTarget.prototype.addEventListener); + assert_equals(window.removeEventListener, EventTarget.prototype.removeEventListener); + assert_equals(window.dispatchEvent, EventTarget.prototype.dispatchEvent); + +}, "EventTarget methods on Window instances are inherited from the EventTarget prototype"); + +test(() => { + + const kCustom = "custom-event"; + const customEvent = new CustomEvent(kCustom, { + bubbles: true + }); + + let target; + window.addEventListener.call(document.body, kCustom, function () { + target = this; + }); + + document.body.dispatchEvent(customEvent); + + assert_equals(target, document.body); + +}, "window.addEventListener respects custom `this`"); + +test(() => { + + const kCustom = "custom-event"; + const customEvent = new CustomEvent(kCustom, { + bubbles: true + }); + + let target; + window.addEventListener.call(null, kCustom, function () { + target = this; + }); + + document.body.dispatchEvent(customEvent); + + assert_equals(target, window); + +}, "window.addEventListener treats nullish `this` as `window`"); +</script> 