python-template/backend/test_json_export.py

#!/usr/bin/env python3
"""
测试JSON导出功能
"""

import os
import sys
import json
from utils.question_formatter import QuestionFormatter

def test_question_formatter():
    """测试题目格式化器"""
    print("🧪 测试题目格式化器...")

    # 创建测试数据
    test_questions = [
        {
            "id": 1,
            "number": "1",
            "question_type": "single_choice",
            "subject": "数学",
            "grade": "grade8",
            "difficulty": 3,
            "question_content": "1. 解方程：(1) 2x² - 4x - 5 = 0；(2) (x - 3)(x - 1) = (x - 2)(x - 1) 5分",
            "options": {
                "A": "x₁ = 2 + √7, x₂ = 2 - √7",
                "B": "x₁ = 1, x₂ = 5",
                "C": "x₁ = 3, x₂ = -1",
                "D": "无解"
            },
            "correct_answer": "A",
            "explanation": "对于方程(1)，使用求根公式可得解。对于方程(2)，两边同时除以(x-1)可得x-3 = x-2，此方程无解。",
            "knowledge_points": ["一元二次方程", "求根公式"],
            "score": 5,
            "images": [
                {
                    "url": "/images/eq1.png",
                    "alt": "方程图片"
                }
            ],
            "created_at": "2024-01-15T10:30:00"
        },
        {
            "id": 2,
            "number": "2",
            "question_type": "essay",
            "subject": "数学",
            "grade": "grade8",
            "difficulty": 4,
            "question_content": "2. 如图，在△ABC 中，AB = AC，D、E 分别是AB、BC 的中点，BF ∥ DE，EF ∥ DB。求证：四边形BDEF 是菱形；若 BE = 4，AC = 5，求DM 的长。",
            "options": {},
            "correct_answer": "证明：由于D、E是中点，BF∥DE，EF∥DB，可得四边形BDEF是平行四边形。又因为BF=EF（中位线相等），所以是菱形。DM = 3",
            "explanation": "本题考查中位线定理和菱形的判定与性质。",
            "knowledge_points": ["中位线定理", "菱形的判定", "勾股定理"],
            "score": 8,
            "images": [],
            "created_at": "2024-01-15T10:31:00"
        }
    ]

    test_paper_info = {
        "id": 1,
        "title": "2025年9月2日初中数学作业",
        "subject": "数学",
        "grade": "grade8"
    }

    # 创建格式化器
    formatter = QuestionFormatter()

    # 测试单个题目格式化
    print("\n📝 测试单个题目格式化...")
    for i, question in enumerate(test_questions):
        print(f"\n--- 题目 {i+1} ---")
        formatted = formatter.format_question(question, test_paper_info)

        print(f"题号: {formatted['number']}")
        print(f"类型: {formatted['type']}")
        print(f"学科: {formatted['subject']}")
        print(f"难度: {formatted['difficulty']['label']}")
        print(f"分值: {formatted['score']['formatted']}")
        print(f"题干: {formatted['stem'][:50]}...")
        print(f"选项数量: {len(formatted['options'])}")
        print(f"知识点: {[kp['name'] for kp in formatted['knowledge_points']]}")
        print(f"验证状态: {'✅' if formatted['validation']['is_valid'] else '❌'}")
        print(f"完整性分数: {formatted['validation']['completeness_score']:.2f}")

    # 测试试卷格式化
    print("\n📚 测试试卷格式化...")
    paper_data = {
        "paper_id": 1,
        "title": "2025年9月2日初中数学作业",
        "subject": "数学",
        "grade": "grade8",
        "questions": test_questions
    }

    formatted_paper = formatter.format_paper_questions(paper_data)

    print(f"试卷标题: {formatted_paper['paper_info']['title']}")
    print(f"题目总数: {formatted_paper['statistics']['total_questions']}")
    print(f"总用时: {formatted_paper['statistics']['estimated_time_formatted']}")
    print(f"题目类型分布: {formatted_paper['statistics']['question_types']}")
    print(f"难度分布: {formatted_paper['statistics']['difficulty_distribution']}")
    print(f"知识点列表: {formatted_paper['statistics']['knowledge_points']}")
    print(f"包含图片题目: {formatted_paper['statistics']['has_images']}个")

    # 导出JSON文件
    print("\n💾 导出JSON文件...")
    output_file = "test_output.json"
    if formatter.export_to_json_file(formatted_paper, output_file):
        print(f"✅ 成功导出到: {output_file}")

        # 验证文件大小
        if os.path.exists(output_file):
            file_size = os.path.getsize(output_file)
            print(f"文件大小: {file_size} 字节")

            # 读取并验证JSON
            with open(output_file, 'r', encoding='utf-8') as f:
                loaded_data = json.load(f)
                print(f"JSON验证: ✅ 格式正确")
                print(f"加载的题目数量: {len(loaded_data['questions'])}")
    else:
        print("❌ 导出失败")

    # 测试JSON字符串导出
    print("\n📄 测试JSON字符串导出...")
    json_string = formatter.export_to_json_string(formatted_paper)
    print(f"JSON字符串长度: {len(json_string)} 字符")

    # 验证JSON字符串
    try:
        parsed = json.loads(json_string)
        print("✅ JSON字符串格式正确")
    except json.JSONDecodeError as e:
        print(f"❌ JSON字符串格式错误: {e}")

    print("\n🎉 格式化器测试完成!")

def test_error_handling():
    """测试错误处理"""
    print("\n🔧 测试错误处理...")

    formatter = QuestionFormatter()

    # 测试空数据
    empty_question = {}
    formatted = formatter.format_question(empty_question)
    print(f"空数据处理: {'✅' if not formatted['validation']['is_valid'] else '❌'}")

    # 测试缺失重要字段
    incomplete_question = {
        "id": 1,
        "question_content": "这是一个不完整的题目"
    }
    formatted = formatter.format_question(incomplete_question)
    print(f"不完整数据处理: {'✅' if formatted['validation']['warnings'] else '❌'}")

    print("错误处理测试完成!")

if __name__ == "__main__":
    print("=" * 60)
    print("🧪 JSON导出功能测试")
    print("=" * 60)

    try:
        test_question_formatter()
        test_error_handling()
        print("\n🎉 所有测试通过!")
    except Exception as e:
        print(f"\n❌ 测试失败: {e}")
        import traceback
        traceback.print_exc()
        sys.exit(1)