onselectionchange-on-distinct-text-controls.html

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This test has a WPT meta file that expects 2 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /selection/onselectionchange-on-distinct-text-controls.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<link rel="help" href="https://w3c.github.io/selection-api/#selectionchange-event">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<body>

<input id="input1" value="hello">

<input id="input2" value="world">

<textarea id="textarea1">hello</textarea>

<textarea id="textarea2">world</textarea>

<script>

promise_test(() => {

  return (async function() {

    let selectionChangeCount1 = 0;

    let selectionChangeCount2 = 0;

    input1.addEventListener("selectionchange", () => ++selectionChangeCount1);

    input2.addEventListener("selectionchange", () => ++selectionChangeCount2);

    input1.setSelectionRange(1, 2);

    input1.setSelectionRange(2, 3);

    input2.setSelectionRange(1, 3);

    assert_equals(selectionChangeCount1, 0);

    assert_equals(selectionChangeCount2, 0);

    await new Promise(setTimeout);

    assert_equals(selectionChangeCount1, 1);

    assert_equals(selectionChangeCount2, 1);

  })();

}, "selectionchange event on each input element fires independently");

promise_test(() => {

  return (async function() {

    let selectionChangeCount1 = 0;

    let selectionChangeCount2 = 0;

    textarea1.addEventListener("selectionchange", () => ++selectionChangeCount1);

    textarea2.addEventListener("selectionchange", () => ++selectionChangeCount2);

    textarea1.setSelectionRange(1, 2);

    textarea1.setSelectionRange(2, 3);

    textarea2.setSelectionRange(1, 3);

    assert_equals(selectionChangeCount1, 0);

    assert_equals(selectionChangeCount2, 0);

    await new Promise(setTimeout);

    assert_equals(selectionChangeCount1, 1);

    assert_equals(selectionChangeCount2, 1);

  })();

}, "selectionchange event on each textarea element fires independently");

</script>