<!doctype html>
<title>Support for the :user-valid pseudo-class</title>
<link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
<link rel="help" href="https://drafts.csswg.org/selectors/#user-pseudos">
<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>

<style>
input {
  border: 2px solid black;
}

input:user-valid {
  border-color: green;
}

input:user-invalid {
  border-color: red;
}
</style>

<input id="initially-valid" type="email">

<script>
promise_test(async () => {
  const input = document.querySelector("#initially-valid");
  assert_true(input.validity.valid);
  // The selector can't match because no interaction has happened.
  assert_false(input.matches(':user-valid'));

  assert_false(input.matches(":user-valid"), "Initially does not match :user-valid");
  assert_false(input.matches(":user-invalid"), "Initially does not match :user-invalid");

  await test_driver.click(input);
  input.blur();

  assert_false(input.matches(":user-valid"), "No change happened, still does not match :user-valid");
  assert_false(input.matches(":user-invalid"), "No change happened, still does not match :user-invalid");

  await test_driver.click(input);
  await test_driver.send_keys(input, "test@example.com");
  input.blur();

  assert_true(input.matches(":user-valid"), "Typed a valid email, :user-valid now matches");
  assert_false(input.matches(":user-invalid"), "Typed a valid email, :user-invalid does not match");

  input.required = true;
  input.value = "";

  assert_false(input.matches(":user-valid"), "Cleared required input, :user-valid no longer matches");
  assert_true(input.matches(":user-invalid"), "Cleared required input, :user-invalid now matches");
}, ":user-valid selector should respond to user action");
</script>
