Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/external/wpt/html/webappapis/scripting/events/event-handler-sourcetext.html 

<!DOCTYPE html>
<meta charset="utf-8">
<title>Test the sourceText of event handlers</title>
<link rel="help" href="https://github.com/whatwg/html/issues/5500">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<body>
<script>
"use strict";

test(() => {
  const el = document.createElement("div");
  el.setAttribute("onclick", "foo");
  assert_equals(el.onclick.toString(), "function onclick(event) {\nfoo\n}");
}, "non-error event handler");

test(() => {
  const el = document.createElement("div");
  el.setAttribute("onerror", "foo");
  assert_equals(el.onerror.toString(), "function onerror(event) {\nfoo\n}");
}, "error event handler not on body");

test(() => {
  const el = document.createElement("body");
  el.setAttribute("onerror", "foo");
  assert_equals(el.onerror.toString(), "function onerror(event, source, lineno, colno, error) {\nfoo\n}");
}, "error event handler on disconnected body");

test(() => {
  const el = document.createElement("frameset");
  el.setAttribute("onerror", "foo");
  assert_equals(el.onerror.toString(), "function onerror(event, source, lineno, colno, error) {\nfoo\n}");
}, "error event handler on disconnected frameset");

test(() => {
  document.body.setAttribute("onerror", "foo");
  assert_equals(window.onerror.toString(), "function onerror(event, source, lineno, colno, error) {\nfoo\n}");
}, "error event handler on connected body, reflected to Window");
</script>