使用Jest expect.toThrow测试Mongoose验证

const mongoose = require('mongoose');
const { Schema } = mongoose;

// 定义模型
const userSchema = new Schema({
  name: {
    type: String,
    required: true
  },
  age: {
    type: Number,
    required: true,
    min: 18
  }
});

// 创建模型
const User = mongoose.model('User', userSchema);

// 测试验证
test('should throw ValidationError if name is missing', () => {
  const user = new User({ age: 20 });
  expect(user.save).toThrow(mongoose.Error.ValidationError);
});

test('should throw ValidationError if age is less than 18', () => {
  const user = new User({ name: 'John', age: 16 });
  expect(user.save).toThrow(mongoose.Error.ValidationError);
});