test_action-clear-snapshots_06.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Test that clearSnapshots disables diffing when deleting snapshots

const {

  takeSnapshotAndCensus,

  clearSnapshots,

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

const {

  actions,

  treeMapState,

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

const {

  toggleDiffing,

  selectSnapshotForDiffingAndRefresh,

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

add_task(async function () {

  const front = new StubbedMemoryFront();

  const heapWorker = new HeapAnalysesClient();

  await front.attach();

  const store = Store();

  const { getState, dispatch } = store;

  ok(true, "create 2 snapshots with a saved census");

  dispatch(takeSnapshotAndCensus(front, heapWorker));

  dispatch(takeSnapshotAndCensus(front, heapWorker));

  await waitUntilCensusState(store, snapshot => snapshot.treeMap, [

    treeMapState.SAVED,

    treeMapState.SAVED,

]);

  ok(true, "snapshots created with a saved census");

  dispatch(toggleDiffing());

  dispatch(

    selectSnapshotForDiffingAndRefresh(heapWorker, getState().snapshots[0])

);

  dispatch(

    selectSnapshotForDiffingAndRefresh(heapWorker, getState().snapshots[1])

);

  ok(getState().diffing, "We should be in diffing view");

  await waitForDispatch(store, actions.TAKE_CENSUS_DIFF_END);

  ok(true, "Received TAKE_CENSUS_DIFF_END action");

  ok(true, "Dispatch clearSnapshots action");

  const deleteEvents = Promise.all([

    waitForDispatch(store, actions.DELETE_SNAPSHOTS_START),

    waitForDispatch(store, actions.DELETE_SNAPSHOTS_END),

]);

  dispatch(clearSnapshots(heapWorker));

  await deleteEvents;

  ok(true, "received delete snapshots events");

  Assert.strictEqual(

    getState().snapshots.length,

0,

    "Snapshots array should be empty"

);

  ok(!getState().diffing, "We should no longer be diffing");

  heapWorker.destroy();

  await front.detach();

});