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https://github.com/web-platform-tests/wpt
26 December 2018, 22:31:15 UTC
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Tip revision: 1d8cf99335f45dadb6d8e42d782d51a823045176 authored by Chris Rebert on 12 April 2016, 07:20:12 UTC
Increase thoroughness of :in-range & :out-of-range tests
Tip revision: 1d8cf99
selection-after-content-change.html 
<!doctype html>
<meta charset="utf-8">
<title>Selection indices after content change</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  test(function() {
    var input = document.createElement("input");
    input.focus();
    input.value = "something something something dark side";
    input.setSelectionRange(4,20);
    assert_equals(input.selectionStart, 4);
    assert_equals(input.selectionEnd, 20);
    input.value = "It's a trap!";
    assert_equals(input.selectionStart, input.value.length);
    assert_equals(input.selectionEnd, input.value.length);
}, "Selection indices after reseting content");
</script>
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