web-bundle/subresource-loading/script-resource-timing-attributes-consistent.https.tentative.sub.html

<!DOCTYPE html>
<meta charset="utf-8" />
<title>
  Resource timing attributes are consistent for the same-origin subresources.
</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../resources/test-helpers.js"></script>
<body>
  <script>
    setup(() => {
      assert_true(HTMLScriptElement.supports("webbundle"));
    });

    promise_test(async (t) => {
      const bundle_url =
        "https://{{domains[]}}:{{ports[https][0]}}/web-bundle/resources/wbn/dynamic1.wbn?pipe=trickle(d0.5)";
      const script_url =
        "https://{{domains[]}}:{{ports[https][0]}}/web-bundle/resources/wbn/dynamic/resource1.js";
      const element = createWebBundleElement(
        "../resources/wbn/dynamic1.wbn?pipe=trickle(d0.5)",
        /*resources=*/ [script_url]
      );
      document.body.appendChild(element);
      var script_entries = 0;
      var web_bundle_entries = 0;
      var web_bundle_entry, script_entry;
      const promise = new Promise((resolve) => {
        new PerformanceObserver(
          t.step_func((entryList) => {
            var entries = entryList.getEntriesByType("resource");
            for (var i = 0; i < entries.length; ++i) {
              if (entries[i].name === script_url) {
                script_entry = entries[i];
                script_entries++;
              }

              if (entries[i].name === bundle_url) {
                web_bundle_entry = entries[i];
                web_bundle_entries++;
              }
            }

            if (web_bundle_entries > 0 && script_entries > 0) {
              // Check timestamps.
              assert_greater_than_equal(
                script_entry.responseStart,
                script_entry.requestStart + 500
              );
              assert_greater_than_equal(
                script_entry.responseStart,
                web_bundle_entry.responseStart
              );
              assert_greater_than_equal(
                script_entry.responseEnd,
                script_entry.responseStart
              );
              assert_greater_than_equal(
                script_entry.requestStart,
                script_entry.connectEnd
              );
              assert_greater_than_equal(
                script_entry.responseEnd,
                script_entry.responseStart
              );
              // Check sizes.
              assert_greater_than(script_entry.encodedBodySize, 0);
              assert_equals(
                script_entry.transferSize,
                script_entry.encodedBodySize + 300
              );
              assert_equals(
                script_entry.encodedBodySize,
                script_entry.decodedBodySize
              );
              resolve();
            }
          })
        ).observe({ entryTypes: ["resource"] });
      });
      const script = document.createElement("script");
      script.type = "module";
      script.src = script_url;
      document.body.appendChild(script);
      return promise;
    }, "Timestamp attributes filled in resource timing entries should be consistent.");
  </script>
</body>