mirror of
https://github.com/roytam1/UXP.git
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Moonchild
8c395520d9
Since these are just interpreted comments, there's 0 impact on actual code. This removes all lines that match /* vim: set(.*)tw=80: */ with S&R -- there are a few others scattered around which will be removed manually in a second part.
98 lines
1.9 KiB
JavaScript
98 lines
1.9 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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const {Loader} = Components.utils.import("resource://gre/modules/commonjs/toolkit/loader.js", {});
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const loader = new Loader.Loader({
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paths: {
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"": "resource://gre/modules/commonjs/",
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"devtools": "resource://devtools",
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},
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globals: {},
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});
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const require = Loader.Require(loader, { id: "undo-test" });
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const {UndoStack} = require("devtools/client/shared/undo");
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const MAX_SIZE = 5;
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function run_test() {
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let str = "";
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let stack = new UndoStack(MAX_SIZE);
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function add(ch) {
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stack.do(function () {
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str += ch;
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}, function () {
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str = str.slice(0, -1);
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});
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}
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do_check_false(stack.canUndo());
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do_check_false(stack.canRedo());
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// Check adding up to the limit of the size
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add("a");
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do_check_true(stack.canUndo());
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do_check_false(stack.canRedo());
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add("b");
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add("c");
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add("d");
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add("e");
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do_check_eq(str, "abcde");
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// Check a simple undo+redo
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stack.undo();
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do_check_eq(str, "abcd");
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do_check_true(stack.canRedo());
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stack.redo();
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do_check_eq(str, "abcde");
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do_check_false(stack.canRedo());
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// Check an undo followed by a new action
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stack.undo();
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do_check_eq(str, "abcd");
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add("q");
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do_check_eq(str, "abcdq");
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do_check_false(stack.canRedo());
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stack.undo();
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do_check_eq(str, "abcd");
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stack.redo();
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do_check_eq(str, "abcdq");
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// Revert back to the beginning of the queue...
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while (stack.canUndo()) {
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stack.undo();
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}
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do_check_eq(str, "");
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// Now put it all back....
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while (stack.canRedo()) {
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stack.redo();
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}
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do_check_eq(str, "abcdq");
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// Now go over the undo limit...
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add("1");
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add("2");
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add("3");
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do_check_eq(str, "abcdq123");
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// And now undoing the whole stack should only undo 5 actions.
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while (stack.canUndo()) {
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stack.undo();
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}
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do_check_eq(str, "abc");
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}
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