select-validity.tentative.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/semantics/forms/the-select-element/select-validity.tentative.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html lang="en">

<title>HTMLselectElement Test: validity</title>

<link rel="author" title="Ionel Popescu" href="mailto:iopopesc@microsoft.com">

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

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

<select id="select1" required>

  <option>one</option>

  <option>two</option>

  <option>three</option>

  <option>four</option>

</select>

<form>

  <select id="select2" required>

  </select>

</form>

<style>

  select, ::picker(select) {

    appearance: base-select;

</style>

<script>

test(() => {

  let select = document.createElement('select');

  assert_true(select.willValidate, "A select element is a submittable element that is a candidate for constraint validation.");

  let option = document.createElement('option');

  select.appendChild(option);

  assert_true(select.checkValidity(), "Always valid when the select isn't a required value.");

  select.required = true;

  assert_equals(select.value, "");

  assert_false(select.checkValidity(), "A selected placeholder option should invalidate the select.");

  let emptyOption = document.createElement('option');

  select.appendChild(emptyOption);

  assert_false(select.checkValidity(), "A selected placeholder option should invalidate the select even if there are multiple options.");

  emptyOption.selected = true;

  assert_true(select.checkValidity(), "An empty non-placeholder option should be a valid choice.");

  let filledOption = document.createElement('option');

  filledOption.value = "test";

  select.appendChild(filledOption);

  filledOption.selected = true;

  assert_equals(select.value, "test", "The non-empty value should be set.");

  assert_true(select.checkValidity(), "A non-empty non-placeholder option should be a valid choice.");

  select.removeChild(option);

  select.appendChild(emptyOption);

  emptyOption.selected = true;

  assert_equals(select.value, "", "The empty value should be set.");

  assert_true(select.checkValidity(), "Only the first option can be seen as a placeholder.");

  select.removeChild(filledOption);

  assert_false(select.checkValidity(), "A selected placeholder option should invalidate the select.");

  emptyOption.value = "test2";

  assert_equals(select.value, "test2");

  assert_true(select.checkValidity(), "A non-empty option value should be a valid choice.");

  emptyOption.removeAttribute("value");

  assert_equals(select.value, "");

  assert_false(select.checkValidity());

  emptyOption.innerText = "test";

  assert_equals(select.value, "test");

  assert_true(select.checkValidity(), "A non-empty option should be a valid choice.");

  const select1 = document.getElementById('select1');

  assert_equals(select1.value, "one");

  assert_true(select1.checkValidity(), "A select with non-empty placeholder option should be valid.");

}, "Validation for placeholder option");

test(() => {

  const select2 = document.getElementById('select2');

  assert_equals(select2.value, "");

  assert_false(select2.checkValidity());

  let form = document.querySelector('form');

  let invalidControl = form.querySelector('select:invalid');

  assert_equals(select2, invalidControl);

  let didDispatchInvalid = false;

  invalidControl.addEventListener('invalid', e => { didDispatchInvalid = true; });

  let didDispatchSubmit = false;

  form.addEventListener('submit', event => { event.preventDefault(); didDispatchSubmit = true; });

  form.requestSubmit();

  assert_true(didDispatchInvalid);

  assert_false(didDispatchSubmit);

}, "Check form not submitted for invalid select");

</script>