gecko/browser/devtools/sourceeditor/test/browser_bug684546_reset_undo.js

73 lines
2.2 KiB
JavaScript

/* vim: set ts=2 et sw=2 tw=80: */
/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
let tempScope = {};
Cu.import("resource:///modules/source-editor.jsm", tempScope);
let SourceEditor = tempScope.SourceEditor;
let testWin;
let editor;
function test()
{
waitForExplicitFinish();
const windowUrl = "data:application/vnd.mozilla.xul+xml,<?xml version='1.0'?>" +
"<window xmlns='http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul'" +
" title='test for bug 684546 - reset undo' width='300' height='500'>" +
"<box flex='1'/></window>";
const windowFeatures = "chrome,titlebar,toolbar,centerscreen,resizable,dialog=no";
testWin = Services.ww.openWindow(null, windowUrl, "_blank", windowFeatures, null);
testWin.addEventListener("load", function onWindowLoad() {
testWin.removeEventListener("load", onWindowLoad, false);
waitForFocus(initEditor, testWin);
}, false);
}
function initEditor()
{
let box = testWin.document.querySelector("box");
editor = new SourceEditor();
editor.init(box, {}, editorLoaded);
}
function editorLoaded()
{
editor.setText("First");
editor.setText("Second", 5);
is(editor.getText(), "FirstSecond", "text set correctly.");
editor.undo();
is(editor.getText(), "First", "undo works.");
editor.redo();
is(editor.getText(), "FirstSecond", "redo works.");
editor.resetUndo();
ok(!editor.canUndo(), "canUndo() is correct");
ok(!editor.canRedo(), "canRedo() is correct");
editor.undo();
is(editor.getText(), "FirstSecond", "reset undo works correctly");
editor.setText("Third", 11);
is(editor.getText(), "FirstSecondThird", "text set correctly");
editor.undo();
is(editor.getText(), "FirstSecond", "undo works after reset");
editor.redo();
is(editor.getText(), "FirstSecondThird", "redo works after reset");
editor.resetUndo();
ok(!editor.canUndo(), "canUndo() is correct (again)");
ok(!editor.canRedo(), "canRedo() is correct (again)");
editor.undo();
is(editor.getText(), "FirstSecondThird", "reset undo still works correctly");
finish();
}
registerCleanupFunction(function() {
editor.destroy();
testWin.close();
testWin = editor = null;
});