1 files changed, 44 insertions, 0 deletions
diff --git a/testing/web-platform/tests/dom/events/Event-defaultPrevented-after-dispatch.html b/testing/web-platform/tests/dom/events/Event-defaultPrevented-after-dispatch.html
new file mode 100644
index 0000000000..8fef005eb5
--- /dev/null
+++ b/testing/web-platform/tests/dom/events/Event-defaultPrevented-after-dispatch.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>Event.defaultPrevented is not reset after dispatchEvent()</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<div id=log></div>
+<input id="target" type="hidden" value=""/>
+<script>
+test(function() {
+    var EVENT = "foo";
+    var TARGET = document.getElementById("target");
+    var evt = document.createEvent("Event");
+    evt.initEvent(EVENT, true, true);
+
+    TARGET.addEventListener(EVENT, this.step_func(function(e) {
+        e.preventDefault();
+        assert_true(e.defaultPrevented, "during dispatch");
+    }), true);
+    TARGET.dispatchEvent(evt);
+
+    assert_true(evt.defaultPrevented, "after dispatch");
+    assert_equals(evt.target, TARGET);
+    assert_equals(evt.srcElement, TARGET);
+}, "Default prevention via preventDefault");
+
+test(function() {
+    var EVENT = "foo";
+    var TARGET = document.getElementById("target");
+    var evt = document.createEvent("Event");
+    evt.initEvent(EVENT, true, true);
+
+    TARGET.addEventListener(EVENT, this.step_func(function(e) {
+        e.returnValue = false;
+        assert_true(e.defaultPrevented, "during dispatch");
+    }), true);
+    TARGET.dispatchEvent(evt);
+
+    assert_true(evt.defaultPrevented, "after dispatch");
+    assert_equals(evt.target, TARGET);
+    assert_equals(evt.srcElement, TARGET);
+}, "Default prevention via returnValue");
+</script>