1 files changed, 134 insertions, 0 deletions
diff --git a/netwerk/test/perf/perftest_http3_lucasquicfetch.js b/netwerk/test/perf/perftest_http3_lucasquicfetch.js
new file mode 100644
index 0000000000..b20042bf45
--- /dev/null
+++ b/netwerk/test/perf/perftest_http3_lucasquicfetch.js
@@ -0,0 +1,134 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+/* eslint-env node */
+
+/*
+Ensure the `--firefox.preference=network.http.http3.enabled:true` is
+set for this test.
+*/
+
+async function getNumLoaded(commands) {
+  return commands.js.run(`
+    let sum = 0;
+    document.querySelectorAll("#imgContainer img").forEach(e => {
+      sum += e.complete & e.naturalHeight != 0;
+    });
+    return sum;
+  `);
+}
+
+async function waitForImgLoadEnd(
+  prevCount,
+  maxStableCount,
+  timeout,
+  commands,
+  context
+) {
+  let starttime = await commands.js.run(`return performance.now();`);
+  let endtime = await commands.js.run(`return performance.now();`);
+  let changing = true;
+  let newCount = -1;
+  let stableCount = 0;
+
+  while (
+    ((await commands.js.run(`return performance.now();`)) - starttime <
+      timeout) &
+    changing
+  ) {
+    // Wait a bit before making another round
+    await commands.wait.byTime(100);
+    newCount = await getNumLoaded(commands);
+    context.log.debug(`${newCount}, ${prevCount}, ${stableCount}`);
+
+    // Check if we are approaching stability
+    if (newCount == prevCount) {
+      // Gather the end time now
+      if (stableCount == 0) {
+        endtime = await commands.js.run(`return performance.now();`);
+      }
+      stableCount++;
+    } else {
+      prevCount = newCount;
+      stableCount = 0;
+    }
+
+    if (stableCount >= maxStableCount) {
+      // Stability achieved
+      changing = false;
+    }
+  }
+
+  return {
+    start: starttime,
+    end: endtime,
+    numResources: newCount,
+  };
+}
+
+async function test(context, commands) {
+  let rootUrl = "https://lucaspardue.com/quictilesfetch.html";
+  let cycles = 5;
+
+  if (
+    (typeof context.options.browsertime !== "undefined") &
+    (typeof context.options.browsertime.cycles !== "undefined")
+  ) {
+    cycles = context.options.browsertime.cycles;
+  }
+
+  // Make firefox learn of HTTP/3 server
+  // XXX: Need to build an HTTP/3-specific conditioned profile
+  // to handle these pre-navigations.
+  await commands.navigate(rootUrl);
+
+  let combos = [
+    [100, 1],
+    [100, 100],
+    [300, 300],
+  ];
+  for (let cycle = 0; cycle < cycles; cycle++) {
+    for (let combo = 0; combo < combos.length; combo++) {
+      await commands.measure.start("pageload");
+      await commands.navigate(rootUrl);
+      await commands.measure.stop();
+      let last = commands.measure.result.length - 1;
+      commands.measure.result[
+        last
+      ].browserScripts.pageinfo.url = `LucasQUIC (r=${combos[combo][0]}, p=${combos[combo][1]})`;
+
+      // Set the input fields
+      await commands.js.runAndWait(`
+        document.querySelector("#maxReq").setAttribute(
+          "value",
+          ${combos[combo][0]}
+        )
+      `);
+      await commands.js.runAndWait(`
+        document.querySelector("#reqGroup").setAttribute(
+          "value",
+          ${combos[combo][1]}
+        )
+      `);
+
+      // Start the test and wait for the images to finish loading
+      commands.click.byJs(`document.querySelector("button")`);
+      let results = await waitForImgLoadEnd(0, 40, 120000, commands, context);
+
+      commands.measure.result[last].browserScripts.pageinfo.resourceLoadTime =
+        results.end - results.start;
+      commands.measure.result[last].browserScripts.pageinfo.imagesLoaded =
+        results.numResources;
+      commands.measure.result[last].browserScripts.pageinfo.imagesMissed =
+        combos[combo][0] - results.numResources;
+    }
+  }
+}
+
+module.exports = {
+  test,
+  owner: "Network Team",
+  name: "lq-fetch",
+  component: "netwerk",
+  description: "Measures the amount of time it takes to load a set of images.",
+};