chromium/third_party/blink/web_tests/editing/selection/longpress-selection-in-iframe-removed-crash.html

<!DOCTYPE html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script type="text/javascript">
  "use strict";

  async_test(function(t) {
    if (!window.eventSender)
      assert_unreached("This test requires window.eventSender to exist");

    document.addEventListener("DOMContentLoaded", t.step_func(function() {
      var iframe1 = document.createElementNS("http://www.w3.org/1999/xhtml", "iframe");
      iframe1.setAttribute("srcdoc", "ABC");
      document.documentElement.appendChild(iframe1);
      var document1 = document.implementation.createDocument("", null);
      iframe1.addEventListener("DOMFocusOut", function() {
        document1.adoptNode(iframe1);
      });
      iframe1.focus();

      iframe1.addEventListener("load", t.step_func(function() {
        document.designMode = "on";

        var clientRect = iframe1.getBoundingClientRect();
        var x = clientRect.left + 10;
        var y = clientRect.top + 10;
        eventSender.gestureLongPress(x, y);

        // Test passes if it does not crash and reaches this point
        setTimeout(t.done.bind(t), 0);
      }));
    }));
  }, "Test longpress selection does not crash");
</script>