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// upload.test.js
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let globalStudent = null;
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let globalnumber = 0;
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const generatedStrings = [];
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// 模拟 fetch 函数
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global.fetch = jest.fn();
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// 上传文件函数
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async function uploadFile(file) {
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// 检查是否选中了文件
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if (!file) {
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throw new Error('请先选择一个文件！');
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}
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const allowedTypes = ['application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'application/vnd.ms-excel'];
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if (!allowedTypes.includes(file.type)) {
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throw new Error('请上传有效的 Excel 文件！');
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}
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const maxSize = 5 * 1024 * 1024; // 5MB
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if (file.size > maxSize) {
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throw new Error('文件大小不能超过 5MB！'); // 在这里抛出错误
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}
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const formData = new FormData();
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formData.append('file', file);
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const response = await fetch(`http://10.133.48.140:8000/${globalnumber}/upload`, {
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method: 'POST',
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body: formData
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});
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if (!response.ok) {
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throw new Error('文件上传失败。');
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}
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return await response.json();
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}
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// 获取随机学生函数
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async function getRandomStudent() {
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const response = await fetch(`http://10.133.48.140:8000/${globalnumber}/random-call`, {
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method: 'POST',
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});
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const student = await response.json();
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globalStudent = student;
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if (!generatedStrings.includes(student.id)) {
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generatedStrings.push(student.id);
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}
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return student;
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}
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// 创建房间函数
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async function createRoom(roomNumber) {
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if (roomNumber.trim() === '') {
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throw new Error('房间号码不能为空！');
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}
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globalnumber = roomNumber;
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const response = await fetch(`http://10.133.48.140:8000/create-class/${globalnumber}`, {
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method: 'POST',
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});
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if (!response.ok) {
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throw new Error('创建房间失败。');
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}
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return await response.json();
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}
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// 测试用例
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describe('文件上传功能', () => {
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it('应该成功上传有效的文件', async () => {
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const mockFile = new File(['content'], 'test.xlsx', { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', size: 1024 });
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fetch.mockResolvedValueOnce({ ok: true, json: jest.fn().mockResolvedValue({ message: '上传成功' }) });
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const result = await uploadFile(mockFile);
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expect(result.message).toBe('上传成功');
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});
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it('应该抛出错误当没有文件时', async () => {
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await expect(uploadFile(null)).rejects.toThrow('请先选择一个文件！');
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});
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it('应该抛出错误当文件类型无效时', async () => {
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const mockFile = new File(['content'], 'test.txt', { type: 'text/plain', size: 1024 });
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await expect(uploadFile(mockFile)).rejects.toThrow('请上传有效的 Excel 文件！');
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});
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it('应该成功获取随机学生', async () => {
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fetch.mockResolvedValueOnce({ ok: true, json: jest.fn().mockResolvedValue({ id: '123', name: 'John Doe', points: 10 }) });
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const student = await getRandomStudent();
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expect(student.name).toBe('John Doe');
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});
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it('应该成功创建房间', async () => {
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fetch.mockResolvedValueOnce({ ok: true, json: jest.fn().mockResolvedValue({ message: '房间创建成功' }) });
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const result = await createRoom('101');
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expect(result.message).toBe('房间创建成功');
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});
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it('应该抛出错误当房间番号为空时', async () => {
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await expect(createRoom('')).rejects.toThrow('房间号码不能为空！');
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});
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}); |
