/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

const ALL_CHANNELS = Ci.nsITelemetry.DATASET_ALL_CHANNELS;

/**
 * Test the throttle_change telemetry event.
 */
add_task(async function () {
  const { monitor, toolbox } = await initNetMonitor(SIMPLE_URL, {
    requestCount: 1,
  });
  info("Starting test... ");

  const { document, store, windowRequire } = monitor.panelWin;
  const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
  store.dispatch(Actions.batchEnable(false));

  // Remove all telemetry events.
  Services.telemetry.clearEvents();

  // Ensure no events have been logged
  const snapshot = Services.telemetry.snapshotEvents(ALL_CHANNELS, true);
  ok(!snapshot.parent, "No events have been logged for the main process");

  document.getElementById("network-throttling-menu").click();
  // Throttling menu items cannot be retrieved by id so we can't use getContextMenuItem
  // here. Instead use querySelector on the toolbox top document, where the context menu
  // will be rendered.
  const item = toolbox.topWindow.document.querySelector(
    "menuitem[label='GPRS']"
  );
  await BrowserTestUtils.waitForPopupEvent(item.parentNode, "shown");
  item.parentNode.activateItem(item);
  await monitor.panelWin.api.once(TEST_EVENTS.THROTTLING_CHANGED);

  // Verify existence of the telemetry event.
  checkTelemetryEvent(
    {
      mode: "GPRS",
    },
    {
      method: "throttle_changed",
    }
  );

  return teardown(monitor);
});
