partitioned-webkitTemporaryStorage-usage-details.tentative.sub.html

<!DOCTYPE html>
<meta name=help href="https://privacycg.github.io/storage-partitioning/">
<title>Partitioned webkitTemporaryStorage usage details test</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<body>
  <script>
    const usageDetails = () => {
      return new Promise((resolve, reject) => {
        navigator.webkitTemporaryStorage.queryUsageAndQuota(
          (usage, quota) => resolve({ usage: usage, quota: quota }), reject)
      }).then(details => details).catch(error => { throw error; });
    }

    const requestFileSystemAndWriteDummyFile = () => {
      return new Promise((resolve, reject) =>
        webkitRequestFileSystem(TEMPORARY, 512, resolve, reject)
      ).then(filesystem =>
        new Promise((resolve, reject) => filesystem.root.getFile("dummy-file",
          { create: true }, resolve, reject))
      ).then(entry =>
        new Promise((resolve, reject) => entry.createWriter(resolve, reject))
      ).then(writer => {
        return new Promise((resolve, reject) => {
          writer.onwriteend = resolve;
          writer.error = reject;
          writer.write(new Blob(['Dummy text for some file weight...']));
        });
      });
    }

    const testPath = () => location.pathname.split("/").slice(0, -1).join("/");

    let alt_origin = "http://{{hosts[alt][]}}:{{ports[http][0]}}";
    let details = {};

    const iframe = document.createElement("iframe");
    iframe.src = `http://{{host}}:{{ports[http][0]}}${testPath()}/resources/` +
      `partitioned-webkitTemporaryStorage-query-usage-helper-frame.html`
    document.body.appendChild(iframe);

    async_test(test => {
      if (location.origin === alt_origin)
        return;

      test.step(async () => {
        details.init = await usageDetails();
        await requestFileSystemAndWriteDummyFile();
        details.after = await usageDetails();
        assert_greater_than(details.after.usage, details.init.usage);

        iframe.contentWindow.postMessage("get-details", iframe.origin);
      });

      window.addEventListener("message", test.step_func(event => {
        if (event.data.source === "same-site") {
          details.same_site = event.data;

          const cross_site_window = window
            .open(`${alt_origin}${location.pathname}`, "", "noopener=false");
          test.add_cleanup(() => cross_site_window.close());
        }
        if (event.data.source === "cross-site") {
          details.cross_site = event.data;
          test.step(() => {
            assert_true(details.cross_site.init.usage == 0,
              "Usage should be 0");
            assert_equals(details.same_site.init.usage, details.after.usage);
          });

          test.done();
        }
      }));
    }, "Partitioned webkitTemporaryStorage usage details test.");
  </script>
</body>
chromium/third_party/blink/web_tests/wpt_internal/storage/quota/partitioned-webkitTemporaryStorage-usage-details.tentative.sub.html
