test_action-clear-snapshots_02.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Test clearSnapshots preserves snapshots with state != READ or ERROR

const {

  takeSnapshotAndCensus,

  clearSnapshots,

  takeSnapshot,

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

const {

  snapshotState: states,

  treeMapState,

  actions,

} = require("resource://devtools/client/memory/constants.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 a snapshot with a census in SAVED state");

  dispatch(takeSnapshotAndCensus(front, heapWorker));

  ok(true, "create a snapshot in SAVED state");

  dispatch(takeSnapshot(front));

  await waitUntilSnapshotState(store, [states.SAVED, states.SAVED]);

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

    treeMapState.SAVED,

    null,

]);

  ok(true, "snapshots created with expected states");

  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");

  equal(getState().snapshots.length, 1, "one snapshot remaining");

  const remainingSnapshot = getState().snapshots[0];

  equal(

    remainingSnapshot.treeMap,

    undefined,

    "remaining snapshot doesn't have a treeMap property"

);

  equal(

    remainingSnapshot.census,

    undefined,

    "remaining snapshot doesn't have a census property"

);

  heapWorker.destroy();

  await front.detach();

});