get_all_cookies-default-samesite.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>TestDriver get_all_cookies method w/ default SameSite</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>
<script>
promise_test(async t => {
  await test_driver.delete_all_cookies();
  t.add_cleanup(test_driver.delete_all_cookies);
  document.cookie = "test0=0";
  const cookies = await test_driver.get_all_cookies();
  assert_equals(cookies.length, 1);
  const cookie = cookies[0];
  assert_equals(cookie["name"], "test0");
  assert_equals(cookie["value"], "0");
  assert_equals(cookie["sameSite"], "Lax");
}, "Get all cookies w/ default SameSite");
</script>

chromium/third_party/blink/web_tests/external/wpt/cookies/samesite/get_all_cookies-default-samesite.html