79 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
			
		
		
	
	
			79 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
/*
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 * Copyright 2025 coze-dev Authors
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
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// Emulate pdfjs-dist module
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vi.mock('pdfjs-dist', () => ({
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  GlobalWorkerOptions: {
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    workerSrc: '',
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  },
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}));
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// Simulate generate-assets module
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vi.mock('../src/generate-assets', () => ({
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  generatePdfAssetsUrl: vi.fn().mockReturnValue('mocked-worker-url'),
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}));
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// Import the tested module
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import { GlobalWorkerOptions } from 'pdfjs-dist';
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import { initPdfJsWorker } from '../src/init-pdfjs-dist';
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import { generatePdfAssetsUrl } from '../src/generate-assets';
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describe('initPdfJsWorker', () => {
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  beforeEach(() => {
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    // Reset GlobalWorkerOptions.workerSrc before each test
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    GlobalWorkerOptions.workerSrc = '';
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    // Clear all call records for simulated functions
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    vi.clearAllMocks();
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  });
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  afterEach(() => {
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    // Reset simulation after each test
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    vi.resetAllMocks();
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  });
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  it('应该设置 GlobalWorkerOptions.workerSrc 当它为空时', () => {
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    // Make sure workerSrc is initially empty
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    expect(GlobalWorkerOptions.workerSrc).toBe('');
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    // Invoke initialization function
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    initPdfJsWorker();
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    // Verify generatePdfAssetsUrl is called and the parameters are correct
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    expect(generatePdfAssetsUrl).toHaveBeenCalledTimes(1);
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    expect(generatePdfAssetsUrl).toHaveBeenCalledWith('pdf.worker');
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    // Verify that workerSrc is set correctly
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    expect(GlobalWorkerOptions.workerSrc).toBe('mocked-worker-url');
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  });
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  it('不应该重新设置 GlobalWorkerOptions.workerSrc 当它已经有值时', () => {
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    // Pre-set workerSrc
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    GlobalWorkerOptions.workerSrc = 'existing-worker-url';
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    // Invoke initialization function
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    initPdfJsWorker();
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    // Verify generatePdfAssetsUrl not called
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    expect(generatePdfAssetsUrl).not.toHaveBeenCalled();
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    // Verify that workerSrc remains unchanged
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    expect(GlobalWorkerOptions.workerSrc).toBe('existing-worker-url');
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  });
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});
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