1 files changed, 60 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/test/browser_net_throttle.js b/devtools/client/netmonitor/test/browser_net_throttle.js
new file mode 100644
index 0000000000..dcdfde3ec7
--- /dev/null
+++ b/devtools/client/netmonitor/test/browser_net_throttle.js
@@ -0,0 +1,60 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Network throttling integration test.
+
+"use strict";
+
+requestLongerTimeout(2);
+
+add_task(async function () {
+  await throttleTest({ throttle: true, addLatency: true });
+  await throttleTest({ throttle: true, addLatency: false });
+  await throttleTest({ throttle: false, addLatency: false });
+});
+
+async function throttleTest(options) {
+  const { throttle, addLatency } = options;
+  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { store, windowRequire, connector } = monitor.panelWin;
+  const { ACTIVITY_TYPE } = windowRequire(
+    "devtools/client/netmonitor/src/constants"
+  );
+  const { updateNetworkThrottling, triggerActivity } = connector;
+  const { getSortedRequests } = windowRequire(
+    "devtools/client/netmonitor/src/selectors/index"
+  );
+
+  info(`Starting test... (throttle = ${throttle}, addLatency = ${addLatency})`);
+
+  // When throttling, must be smaller than the length of the content
+  // of SIMPLE_URL in bytes.
+  const size = throttle ? 200 : 0;
+  const latency = addLatency ? 100 : 0;
+
+  const throttleProfile = {
+    latency,
+    download: size,
+    upload: 10000,
+  };
+
+  info("sending throttle request");
+
+  await updateNetworkThrottling(true, throttleProfile);
+
+  const wait = waitForNetworkEvents(monitor, 1);
+  await triggerActivity(ACTIVITY_TYPE.RELOAD.WITH_CACHE_DISABLED);
+  await wait;
+
+  await waitForRequestData(store, ["eventTimings"]);
+
+  const requestItem = getSortedRequests(store.getState())[0];
+  const reportedOneSecond = requestItem.eventTimings.timings.receive > 1000;
+  if (throttle) {
+    ok(reportedOneSecond, "download reported as taking more than one second");
+  } else {
+    ok(!reportedOneSecond, "download reported as taking less than one second");
+  }
+
+  await teardown(monitor);
+}