clear-site-data-cross-site-window.html

<!doctype html>
<head>
<title>Test Clear-Site-Data and partitioned storage</title>
<script src="/resources/testharness.js"></script>
<script src="/storage/resources/testharness-helpers.js"></script>
</head>
<body>
<script>

promise_test(async () => {
  assert_equals(window.location.hostname, TEST_HOST);
  assert_equals(localStorage.length, 0);

  localStorage.setItem("cross-site-window", "test");
  assert_equals(localStorage.length, 1);
  
  // Test that Clear-Site-Data deletes the local storage in this partition.
  const resp = await fetch(
      "/storage/resources/clear-site-data.php", {method: "GET"});
  assert_equals(resp.status, 200);

  var totalTime = 0;
  // 2 second timeout.
  while ((localStorage.length != 0) && (totalTime < 2000)) {
      await timePasses(50);
      totalTime += 50;
  }
  assert_equals(localStorage.length, 0);

  const url = new URL(
      "/storage/partitioned-storage/resources/" +
          "clear-site-data-same-site-window.html",
      `https://${ORIGINAL_HOST}:${window.location.port}`);
  const popup = window.open(String(url));
  fetch_tests_from_window(popup);
}, "Clearing partitioned storage in another partition");

</script>
</body>

chromium/third_party/blink/web_tests/http/tests/storage/partitioned-storage/resources/clear-site-data-cross-site-window.html