browser_memory_allocationStackDisplay_02.js

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/* Any copyright is dedicated to the Public Domain.

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

// Sanity test that we can show allocation stack work when loading a new page

"use strict";

const {

  toggleRecordingAllocationStacks,

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

const {

  takeSnapshotAndCensus,

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

const censusDisplayActions = require("resource://devtools/client/memory/actions/census-display.js");

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

const {

  changeView,

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

const TEST_URL =

  "https://example.com/browser/devtools/client/memory/test/browser/doc_steady_allocation.html";

this.test = makeMemoryTest("about:blank", async function ({ panel }) {

  const heapWorker = panel.panelWin.gHeapAnalysesClient;

  const { getState, dispatch } = panel.panelWin.gStore;

  const doc = panel.panelWin.document;

  dispatch(changeView(viewState.CENSUS));

  dispatch(

    censusDisplayActions.setCensusDisplay(

      censusDisplays.invertedAllocationStack

);

  is(getState().censusDisplay.breakdown.by, "allocationStack");

  await dispatch(toggleRecordingAllocationStacks(panel._commands));

  ok(getState().allocations.recording);

  await navigateTo(TEST_URL);

  const front = getState().front;

  await dispatch(takeSnapshotAndCensus(front, heapWorker));

  const names = [...doc.querySelectorAll(".frame-link-function-display-name")];

  ok(names.length, "Should have rendered some allocation stack tree items");

ok(

    names.some(e => !!e.textContent.trim()),

    "And at least some of them should have functionDisplayNames"

);

});