webdriver/interface/interface.html

<!DOCTYPE html>
<body>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src=/resources/WebIDLParser.js></script>
<script src=/resources/idlharness.js></script>
<script type=text/plain class=untested>
[Exposed=Window]
interface Navigator {
  // objects implementing this interface also implement the interfaces given below
};
</script>
<script type=text/plain>
Navigator implements NavigatorAutomationInformation;

[NoInterfaceObject,
 Exposed=(Window)]
interface NavigatorAutomationInformation {
    readonly attribute boolean webdriver;
    // always returns true
};
</script>
<script>
"use strict";

if ("webdriver" in navigator) {
  test(() => assert_true(navigator.webdriver), "navigator.webdriver is always true");
  var idlArray = new IdlArray();
  [].forEach.call(document.querySelectorAll("script[type=text\\/plain]"), function(node) {
    if (node.className == "untested") {
      idlArray.add_untested_idls(node.textContent);
    } else {
      idlArray.add_idls(node.textContent);
    }
  });
  idlArray.test();
} else {
  done();
}
</script>