yanchengPowerSupply/node_modules/pdfjs-dist/lib/test/unit/editor_spec.js

119 lines
3.1 KiB
JavaScript

/**
* @licstart The following is the entire license notice for the
* JavaScript code in this page
*
* Copyright 2022 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @licend The above is the entire license notice for the
* JavaScript code in this page
*/
"use strict";
var _tools = require("../../display/editor/tools.js");
var _ink = require("../../display/editor/ink.js");
describe("editor", function () {
describe("Command Manager", function () {
it("should check undo/redo", function () {
const manager = new _tools.CommandManager(4);
let x = 0;
const makeDoUndo = n => ({
cmd: () => x += n,
undo: () => x -= n
});
manager.add({ ...makeDoUndo(1),
mustExec: true
});
expect(x).toEqual(1);
manager.add({ ...makeDoUndo(2),
mustExec: true
});
expect(x).toEqual(3);
manager.add({ ...makeDoUndo(3),
mustExec: true
});
expect(x).toEqual(6);
manager.undo();
expect(x).toEqual(3);
manager.undo();
expect(x).toEqual(1);
manager.undo();
expect(x).toEqual(0);
manager.undo();
expect(x).toEqual(0);
manager.redo();
expect(x).toEqual(1);
manager.redo();
expect(x).toEqual(3);
manager.redo();
expect(x).toEqual(6);
manager.redo();
expect(x).toEqual(6);
manager.undo();
expect(x).toEqual(3);
manager.redo();
expect(x).toEqual(6);
});
});
it("should hit the limit of the manager", function () {
const manager = new _tools.CommandManager(3);
let x = 0;
const makeDoUndo = n => ({
cmd: () => x += n,
undo: () => x -= n
});
manager.add({ ...makeDoUndo(1),
mustExec: true
});
manager.add({ ...makeDoUndo(2),
mustExec: true
});
manager.add({ ...makeDoUndo(3),
mustExec: true
});
manager.add({ ...makeDoUndo(4),
mustExec: true
});
expect(x).toEqual(10);
manager.undo();
manager.undo();
expect(x).toEqual(3);
manager.undo();
expect(x).toEqual(1);
manager.undo();
expect(x).toEqual(1);
manager.redo();
manager.redo();
expect(x).toEqual(6);
manager.add({ ...makeDoUndo(5),
mustExec: true
});
expect(x).toEqual(11);
});
describe("fitCurve", function () {
it("should return a function", function () {
expect(typeof _ink.fitCurve).toEqual("function");
});
it("should compute an Array of bezier curves", function () {
const bezier = (0, _ink.fitCurve)([[1, 2], [4, 5]], 30, null);
expect(bezier).toEqual([[[1, 2], [2, 3], [3, 4], [4, 5]]]);
});
});
});