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

/**
 * Tests if the profiler correctly handles multiple recordings and can
 * successfully switch between them, even when one of them is in progress.
 */

const { SIMPLE_URL } = require("devtools/client/performance/test/helpers/urls");
const { initPerformanceInNewTab, teardownToolboxAndRemoveTab } = require("devtools/client/performance/test/helpers/panel-utils");
const { startRecording, stopRecording } = require("devtools/client/performance/test/helpers/actions");
const { once } = require("devtools/client/performance/test/helpers/event-utils");
const { getSelectedRecordingIndex, setSelectedRecording, getRecordingsCount } = require("devtools/client/performance/test/helpers/recording-utils");

add_task(function* () {
  // This test seems to take a very long time to finish on Linux VMs.
  requestLongerTimeout(4);

  let { panel } = yield initPerformanceInNewTab({
    url: SIMPLE_URL,
    win: window
  });

  let { EVENTS, PerformanceController } = panel.panelWin;

  yield startRecording(panel);
  yield stopRecording(panel);

  yield startRecording(panel);

  is(getRecordingsCount(panel), 2,
    "There should be two recordings visible.");
  is(getSelectedRecordingIndex(panel), 1,
    "The new recording item should be selected.");

  let selected = once(PerformanceController, EVENTS.RECORDING_SELECTED);
  setSelectedRecording(panel, 0);
  yield selected;

  is(getRecordingsCount(panel), 2,
    "There should still be two recordings visible.");
  is(getSelectedRecordingIndex(panel), 0,
    "The first recording item should be selected now.");

  selected = once(PerformanceController, EVENTS.RECORDING_SELECTED);
  setSelectedRecording(panel, 1);
  yield selected;

  is(getRecordingsCount(panel), 2,
    "There should still be two recordings visible.");
  is(getSelectedRecordingIndex(panel), 1,
    "The second recording item should be selected again.");

  yield stopRecording(panel);

  yield teardownToolboxAndRemoveTab(panel);
});