test_DominatorTree_01.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Sanity test that we can compute dominator trees.

function run_test() {

  const path = ChromeUtils.saveHeapSnapshot({ runtime: true });

  const snapshot = ChromeUtils.readHeapSnapshot(path);

  const dominatorTree = snapshot.computeDominatorTree();

  ok(dominatorTree);

  ok(DominatorTree.isInstance(dominatorTree));

  let threw = false;

  try {

    new DominatorTree();

  } catch (e) {

    threw = true;

  ok(threw, "Constructor shouldn't be usable");

  do_test_finished();