test_action-clear-snapshots_05.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Test clearSnapshots deletes several snapshots

const {

  takeSnapshotAndCensus,

  clearSnapshots,

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

const {

  actions,

  treeMapState,

} = 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 2 snapshots with a saved census");

  dispatch(takeSnapshotAndCensus(front, heapWorker));

  dispatch(takeSnapshotAndCensus(front, heapWorker));

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

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

    treeMapState.SAVED,

    treeMapState.SAVED,

]);

  const errorHeapWorker = {

    deleteHeapSnapshot() {

      return Promise.reject("_");

},

};

  ok(true, "dispatch clearSnapshots action");

  const deleteEvents = Promise.all([

    waitForDispatch(store, actions.DELETE_SNAPSHOTS_START),

    waitForDispatch(store, actions.DELETE_SNAPSHOTS_END),

    waitForDispatch(store, actions.SNAPSHOT_ERROR),

    waitForDispatch(store, actions.SNAPSHOT_ERROR),

]);

  dispatch(clearSnapshots(errorHeapWorker));

  await deleteEvents;

  ok(true, "received delete snapshots and snapshot error events");

  equal(getState().snapshots.length, 0, "no snapshot remaining");

  heapWorker.destroy();

  await front.detach();

});