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test(() => {
const input = document.body.appendChild(document.createElement('input'));
input.focus();
let blurCalled = false;
input.onblur = e => blurCalled = true;
input.remove();
assert_false(blurCalled, "Blur event was not fired");
}, "<input> element does not fire blur event upon DOM removal");
test(() => {
const button = document.body.appendChild(document.createElement('button'));
button.focus();
let blur_called = false;
let focus_out_called = false;
let focus_called = false;
button.onblur = () => { blur_called = true; }
button.onfocusout = () => { focus_out_called = true; }
document.body.addEventListener("focus",
() => { focus_called = true; }, {capture: true});
button.remove();
assert_false(blur_called, "Blur event was not fired");
assert_false(focus_out_called, "FocusOut event was not fired");
assert_false(focus_called, "Focus was not fired");
}, "<button> element does not fire blur/focusout events upon DOM removal");
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