chromium/third_party/blink/web_tests/external/wpt/html/semantics/forms/the-input-element/show-picker-user-gesture.html

<!DOCTYPE html>
<title>Test showPicker() user gesture requirement</title>
<meta name="timeout" content="long">
<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>
<body></body>
<script type=module>
import inputTypes from "./input-types.js";

for (const inputType of inputTypes) {
  test(() => {
    const input = document.createElement("input");
    input.setAttribute("type", inputType);

    assert_throws_dom('NotAllowedError', () => { input.showPicker(); });
  }, `input[type=${inputType}] showPicker() requires a user gesture`);
}

for (const inputType of inputTypes) {
  promise_test(async t => {
    const input = document.createElement("input");
    input.setAttribute("type", inputType);

    await test_driver.bless('show picker');
    input.showPicker();
    input.blur();
  }, `input[type=${inputType}] showPicker() does not throw when user activation is active`);
}

for (const inputType of inputTypes) {
  promise_test(async () => {
    const input = document.createElement('input');
    input.setAttribute('type', inputType);

    await test_driver.bless('show picker');
    input.showPicker();
    input.blur();

    assert_false(navigator.userActivation.isActive);
  }, `input[type=${inputType}] showPicker() consumes user activation`);
}
</script>