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Test Info:

<!DOCTYPE html>
<title> ErrorEvent and Worker.dispatchEvent() </title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
async_test(function(t) {
var event = "error";
var filename = './support/ErrorEvent.js';
var message = 'Hello Worker';
var lineno = 5;
var colno = 6;
var error = new Error("test");
var worker = new Worker(filename);
worker.addEventListener(event, t.step_func_done(function(e) {
assert_equals(e.type, event, 'type');
assert_equals(e.message, message, 'message');
assert_equals(e.filename, filename, 'filename');
assert_equals(e.lineno, lineno, 'lineno');
assert_equals(e.colno, colno, 'colno');
assert_equals(e.error, error, 'error');
}), true);
var e = new ErrorEvent(event, {bubbles:true, cancelable:true, message:message, filename:filename, lineno:lineno, colno:colno, error:error});
test(function() {
var e = new ErrorEvent("error");
assert_false("initErrorEvent" in e, "should not be supported");
}, "initErrorEvent");
test(function() {
() => ErrorEvent(''),
"Calling ErrorEvent constructor without 'new' must throw"
}, "ErrorEvent constructor called as normal function");