gecko-dev/browser/devtools/performance/test/browser_profiler_tree-view-06.js

/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

/**
 * Tests if the profiler's tree view implementation works properly and
 * correctly emits events when certain DOM nodes are clicked.
 */

function* spawnTest() {
  let { ThreadNode } = devtools.require("devtools/performance/tree-model");
  let { CallView } = devtools.require("devtools/performance/tree-view");

  let threadNode = new ThreadNode(gThread);
  // Don't display the synthesized (root) and the real (root) node twice.
  threadNode.calls = threadNode.calls[0].calls;
  let treeRoot = new CallView({ frame: threadNode });

  let container = document.createElement("vbox");
  treeRoot.attachTo(container);

  let A = treeRoot.getChild();
  let B = A.getChild();
  let D = B.getChild();

  let receivedLinkEvent = treeRoot.once("link");
  EventUtils.sendMouseEvent({ type: "mousedown" }, D.target.querySelector(".call-tree-url"));

  let eventItem = yield receivedLinkEvent;
  is(eventItem, D, "The 'link' event target is correct.");

  finish();
}

let gThread = synthesizeProfileForTest([{
  time: 5,
  frames: [
    { category: 8,  location: "(root)" },
    { category: 8,  location: "A (http://foo/bar/baz:12)" },
    { category: 16, location: "B (http://foo/bar/baz:34)" },
    { category: 32, location: "C (http://foo/bar/baz:56)" }
  ]
}, {
  time: 5 + 1,
  frames: [
    { category: 8,  location: "(root)" },
    { category: 8,  location: "A (http://foo/bar/baz:12)" },
    { category: 16, location: "B (http://foo/bar/baz:34)" },
    { category: 64, location: "D (http://foo/bar/baz:78)" }
  ]
}, {
  time: 5 + 1 + 2,
  frames: [
    { category: 8,  location: "(root)" },
    { category: 8,  location: "A (http://foo/bar/baz:12)" },
    { category: 16, location: "B (http://foo/bar/baz:34)" },
    { category: 64, location: "D (http://foo/bar/baz:78)" }
  ]
}, {
  time: 5 + 1 + 2 + 7,
  frames: [
    { category: 8,   location: "(root)" },
    { category: 8,   location: "A (http://foo/bar/baz:12)" },
    { category: 128, location: "E (http://foo/bar/baz:90)" },
    { category: 256, location: "F (http://foo/bar/baz:99)" }
  ]
}]);