show-picker-being-rendered.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/forms/the-select-element/show-picker-being-rendered.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Test showPicker() being rendered requirement</title>

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

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

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

<script src="/resources/testdriver-vendor.js"></script>

<select id="select" style="display: none;">

    <option>Item 1</option>

</select>

<script>

promise_test(async t => {

    await test_driver.bless('show picker');

    assert_throws_dom('NotSupportedError', () => { select.showPicker(); });

    // Test that dynamically changing to actually being rendered works.

    await test_driver.bless('show picker');

    select.style.display = 'inline-block';

    select.showPicker();

    select.blur();

}, 'select showPicker() throws when not being rendered');

</script>