mozilla-central/testing/web-platform/tests/selection/selection-range-after-textcontrol-removed.html

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Test Info:

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="variant" content="?textControl=text">
<meta name="variant" content="?textControl=password">
<meta name="variant" content="?textControl=number">
<meta name="variant" content="?textControl=textarea">
<title>Selection range after text control is removed</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script>
"use strict";
/**
* Browsers may use internal Selection and/or Range to implement the selection
* in text controls. They should not be appear outside the host text control
* after the host is removed.
*/
addEventListener("load", () => {
const textControlType = (new URLSearchParams(document.location.search)).get("mode");
function createTextControlElement() {
const textControl =
document.createElement(textControlType == "textarea" ? "textarea" : "input");
if (textControlType != "textarea") {
textControl.type = textControlType;
}
return textControl;
}
test(() => {
const textControl = createTextControlElement();
document.body.appendChild(textControl);
textControl.select();
getSelection().removeAllRanges();
textControl.remove();
assert_equals(getSelection().rangeCount, 0);
}, "Removing the text control should not add selection range");
test(() => {
const wrapper = document.createElement("div");
wrapper.id = "wrapper";
const textControl = createTextControlElement();
wrapper.appendChild(textControl);
document.body.appendChild(wrapper);
textControl.select();
getSelection().removeAllRanges();
wrapper.remove();
assert_equals(getSelection().rangeCount, 0);
}, "Removing the text control parent should not add selection range");
}, {once: true});
</script>
</head>
<body></body>
</html>