test_stack.js - mozsearch

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Test stack.js.

function run_test() {

  const loader = new DevToolsLoader();

  const require = loader.require;

  const {

    StackFrameCache,

  } = require("resource://devtools/server/actors/utils/stack.js");

  const cache = new StackFrameCache();

  cache.initFrames();

  const baseFrame = {

    line: 23,

    column: 77,

    source: "nowhere",

    functionDisplayName: "nobody",

    parent: null,

    asyncParent: null,

    asyncCause: null,

};

  cache.addFrame(baseFrame);

  let event = cache.makeEvent();

  Assert.equal(event[0], null);

  Assert.equal(event[1].functionDisplayName, "nobody");

  Assert.equal(event.length, 2);

  cache.addFrame({

    line: 24,

    column: 78,

    source: "nowhere",

    functionDisplayName: "still nobody",

    parent: null,

    asyncParent: baseFrame,

    asyncCause: "async",

});

  event = cache.makeEvent();

  Assert.equal(event[0].functionDisplayName, "still nobody");

  Assert.equal(event[0].parent, 0);

  Assert.equal(event[0].asyncParent, 1);

  Assert.equal(event.length, 1);