test_nsIEditor_isSelectionEditable.html

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<!doctype html>

<title>Test for nsIEditor.isSelectionEditable</title>

<script src="/tests/SimpleTest/SimpleTest.js"></script>

<link rel="stylesheet" href="/tests/SimpleTest/test.css">

<input>

<textarea></textarea>

<script>

for (let tag of ["input", "textarea"]) {

  let node = document.querySelector(tag);

  ok(SpecialPowers.wrap(node).editor.isSelectionEditable, "Empty editor selection should be editable");

  node.value = "abcd";

  ok(SpecialPowers.wrap(node).editor.isSelectionEditable, "Non-empty editor selection should be editable");

  node.value = "";

  ok(SpecialPowers.wrap(node).editor.isSelectionEditable, "Empty editor selection should be editable after setting value");

</script>