test_action_diffing_02.js

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/* Any copyright is dedicated to the Public Domain.

   http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Test that toggling diffing unselects all snapshots.

const {

  censusState,

  viewState,

} = require("resource://devtools/client/memory/constants.js");

const {

  toggleDiffing,

} = require("resource://devtools/client/memory/actions/diffing.js");

const {

  takeSnapshotAndCensus,

} = require("resource://devtools/client/memory/actions/snapshot.js");

const {

  changeView,

} = require("resource://devtools/client/memory/actions/view.js");

add_task(async function () {

  const front = new StubbedMemoryFront();

  const heapWorker = new HeapAnalysesClient();

  await front.attach();

  const store = Store();

  const { getState, dispatch } = store;

  dispatch(changeView(viewState.CENSUS));

  equal(getState().diffing, null, "not diffing by default");

  dispatch(takeSnapshotAndCensus(front, heapWorker));

  dispatch(takeSnapshotAndCensus(front, heapWorker));

  dispatch(takeSnapshotAndCensus(front, heapWorker));

  await waitUntilCensusState(store, s => s.census, [

    censusState.SAVED,

    censusState.SAVED,

    censusState.SAVED,

]);

ok(

    getState().snapshots.some(s => s.selected),

    "One of the new snapshots is selected"

);

  dispatch(toggleDiffing());

  ok(getState().diffing, "now diffing after toggling");

  for (const s of getState().snapshots) {

ok(

      !s.selected,

      "No snapshot should be selected after entering diffing mode"

);

  heapWorker.destroy();

  await front.detach();

});