coze-studio/frontend/packages/arch/pdfjs-shadow/__tests__/init-pdfjs-dist.test.ts

79 lines
2.4 KiB
TypeScript

/*
* Copyright 2025 coze-dev Authors
*
* 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.
*/
import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
// 模拟 pdfjs-dist 模块
vi.mock('pdfjs-dist', () => ({
GlobalWorkerOptions: {
workerSrc: '',
},
}));
// 模拟 generate-assets 模块
vi.mock('../src/generate-assets', () => ({
generatePdfAssetsUrl: vi.fn().mockReturnValue('mocked-worker-url'),
}));
// 导入被测试的模块
import { GlobalWorkerOptions } from 'pdfjs-dist';
import { initPdfJsWorker } from '../src/init-pdfjs-dist';
import { generatePdfAssetsUrl } from '../src/generate-assets';
describe('initPdfJsWorker', () => {
beforeEach(() => {
// 每个测试前重置 GlobalWorkerOptions.workerSrc
GlobalWorkerOptions.workerSrc = '';
// 清除所有模拟函数的调用记录
vi.clearAllMocks();
});
afterEach(() => {
// 每个测试后重置模拟
vi.resetAllMocks();
});
it('应该设置 GlobalWorkerOptions.workerSrc 当它为空时', () => {
// 确保 workerSrc 初始为空
expect(GlobalWorkerOptions.workerSrc).toBe('');
// 调用初始化函数
initPdfJsWorker();
// 验证 generatePdfAssetsUrl 被调用,且参数正确
expect(generatePdfAssetsUrl).toHaveBeenCalledTimes(1);
expect(generatePdfAssetsUrl).toHaveBeenCalledWith('pdf.worker');
// 验证 workerSrc 被正确设置
expect(GlobalWorkerOptions.workerSrc).toBe('mocked-worker-url');
});
it('不应该重新设置 GlobalWorkerOptions.workerSrc 当它已经有值时', () => {
// 预先设置 workerSrc
GlobalWorkerOptions.workerSrc = 'existing-worker-url';
// 调用初始化函数
initPdfJsWorker();
// 验证 generatePdfAssetsUrl 没有被调用
expect(generatePdfAssetsUrl).not.toHaveBeenCalled();
// 验证 workerSrc 保持不变
expect(GlobalWorkerOptions.workerSrc).toBe('existing-worker-url');
});
});