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<!doctype html>
<meta charset="utf-8">
<title></title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<textarea>
</textarea>
<script>
test(function() {
let textarea = document.querySelector('textarea');
assert_equals(textarea.selectionStart, 0);
assert_equals(textarea.selectionEnd, 0);
textarea.setSelectionRange(0, 1);
assert_equals(textarea.selectionStart, 0);
assert_equals(textarea.selectionEnd, 1);
}, "setSelectionRange on line boundaries");
</script>
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