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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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51
testing/web-platform/tests/dom/events/Event-dispatch-throwing.html Normal file
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<!DOCTYPE html>
<meta charset="UTF-8">
<title>Throwing in event listeners</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<script>
setup({allow_uncaught_exception:true})
test(function() {
var errorEvents = 0;
window.onerror = this.step_func(function(e) {
assert_equals(typeof e, 'string');
++errorEvents;
});
var element = document.createElement('div');
element.addEventListener('click', function() {
throw new Error('Error from only listener');
});
element.dispatchEvent(new Event('click'));
assert_equals(errorEvents, 1);
}, "Throwing in event listener with a single listeners");
test(function() {
var errorEvents = 0;
window.onerror = this.step_func(function(e) {
assert_equals(typeof e, 'string');
++errorEvents;
});
var element = document.createElement('div');
var secondCalled = false;
element.addEventListener('click', function() {
throw new Error('Error from first listener');
});
element.addEventListener('click', this.step_func(function() {
secondCalled = true;
}), false);
element.dispatchEvent(new Event('click'));
assert_equals(errorEvents, 1);
assert_true(secondCalled);
}, "Throwing in event listener with multiple listeners");
</script>