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 /* Any copyright is dedicated to the Public Domain.

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

 /**

  * Tests if the a function call's stack is properly displayed in the UI

  * and jumping to source in the debugger for the topmost call item works.

  */

 function ifTestingSupported() {

   let [target, debuggee, panel] = yield initCanavsDebuggerFrontend(SIMPLE_CANVAS_DEEP_STACK_URL);

   let { window, $, $all, EVENTS, SnapshotsListView, CallsListView } = panel.panelWin;

   yield reload(target);

   let recordingFinished = once(window, EVENTS.SNAPSHOT_RECORDING_FINISHED);

   let callListPopulated = once(window, EVENTS.CALL_LIST_POPULATED);

   SnapshotsListView._onRecordButtonClick();

   yield promise.all([recordingFinished, callListPopulated]);

   let callItem = CallsListView.getItemAtIndex(2);

   let locationLink = $(".call-item-location", callItem.target);

   is($(".call-item-stack", callItem.target), null,

     "There should be no stack container available yet for the draw call.");

   let callStackDisplayed = once(window, EVENTS.CALL_STACK_DISPLAYED);

   EventUtils.sendMouseEvent({ type: "mousedown" }, locationLink, window);

   yield callStackDisplayed;

   isnot($(".call-item-stack", callItem.target), null,

     "There should be a stack container available now for the draw call.");

   is($all(".call-item-stack-fn", callItem.target).length, 4,

     "There should be 4 functions on the stack for the draw call.");

   let jumpedToSource = once(window, EVENTS.SOURCE_SHOWN_IN_JS_DEBUGGER);

   EventUtils.sendMouseEvent({ type: "mousedown" }, $(".call-item-location", callItem.target));

   yield jumpedToSource;

   let toolbox = yield gDevTools.getToolbox(target);

   let { panelWin: { DebuggerView: view } } = toolbox.getPanel("jsdebugger");

   is(view.Sources.selectedValue, SIMPLE_CANVAS_DEEP_STACK_URL,

     "The expected source was shown in the debugger.");

   is(view.editor.getCursor().line, 23,

     "The expected source line is highlighted in the debugger.");

   yield teardown(panel);

   finish();

 }