261 lines
8.5 KiB
Python
261 lines
8.5 KiB
Python
#!/usr/bin/env python3
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"""
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简化的测试：验证移除降级逻辑的效果
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"""
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import sys
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from pathlib import Path
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# 添加项目根目录到Python路径
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project_root = Path(__file__).parent.parent
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sys.path.insert(0, str(project_root))
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def test_basic_functionality():
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"""测试基本功能"""
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print("🎯 测试基本功能")
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print("=" * 50)
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try:
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# 检查PySceneDetect
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try:
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import scenedetect
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print(f"✅ PySceneDetect {scenedetect.__version__} 可用")
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except ImportError:
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print("❌ PySceneDetect不可用，这会导致明确的错误")
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return True # 这是预期的行为
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# 测试导入
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from python_core.services.video_splitter import VideoSplitterService, DetectionConfig, DetectorType
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print("✅ 模块导入成功")
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# 测试服务创建
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service = VideoSplitterService()
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print("✅ 服务创建成功")
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# 查找测试视频
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assets_dir = project_root / "assets"
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video_files = list(assets_dir.rglob("*.mp4"))
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if not video_files:
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print("⚠️ 没有找到测试视频，跳过视频分析测试")
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return True
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test_video = str(video_files[0])
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print(f"📹 测试视频: {test_video}")
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# 测试视频分析
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config = DetectionConfig(threshold=30.0, detector_type=DetectorType.CONTENT)
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result = service.analyze_video(test_video, config)
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if result.success:
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print(f"✅ 视频分析成功:")
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print(f" 总场景数: {result.total_scenes}")
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print(f" 总时长: {result.total_duration:.2f}秒")
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print(f" 分析时间: {result.analysis_time:.2f}秒")
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else:
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print(f"❌ 视频分析失败: {result.error}")
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return False
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return True
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except Exception as e:
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print(f"❌ 测试失败: {e}")
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# 如果是依赖相关的错误，这是预期的
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if "DependencyError" in str(type(e)) or "PySceneDetect" in str(e):
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print("✅ 这是预期的依赖错误，说明快速失败机制工作正常")
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return True
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return False
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def test_validation_without_fallback():
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"""测试没有降级的验证"""
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print("\n🛡️ 测试没有降级的验证")
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print("=" * 50)
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try:
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from python_core.services.video_splitter.types import SceneInfo, DetectionConfig, ValidationError
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# 测试数据验证
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print("🔍 测试数据验证...")
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# 正确的数据应该成功
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valid_scene = SceneInfo(
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scene_number=1,
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start_time=0.0,
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end_time=5.0,
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duration=5.0,
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start_frame=0,
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end_frame=120
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)
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print("✅ 正确数据创建成功")
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# 错误的数据应该立即失败
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try:
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invalid_scene = SceneInfo(
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scene_number=0, # 无效
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start_time=0.0,
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end_time=5.0,
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duration=5.0,
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start_frame=0,
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end_frame=120
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)
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print("❌ 应该抛出验证错误")
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return False
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except ValidationError as e:
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print(f"✅ 正确抛出验证错误: {e}")
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# 测试配置验证
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valid_config = DetectionConfig(threshold=30.0)
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print("✅ 正确配置创建成功")
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try:
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invalid_config = DetectionConfig(threshold=150.0) # 超出范围
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print("❌ 应该抛出配置验证错误")
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return False
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except ValidationError as e:
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print(f"✅ 正确抛出配置验证错误: {e}")
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return True
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except Exception as e:
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print(f"❌ 验证测试失败: {e}")
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return False
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def test_error_clarity():
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"""测试错误信息的清晰性"""
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print("\n🔍 测试错误信息的清晰性")
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print("=" * 50)
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try:
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from python_core.services.video_splitter.validators import BasicVideoValidator
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from python_core.services.video_splitter.types import ValidationError
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validator = BasicVideoValidator()
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# 测试不存在文件的错误信息
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try:
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validator.validate("/clearly/nonexistent/path/video.mp4")
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print("❌ 应该抛出错误")
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return False
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except ValidationError as e:
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error_msg = str(e)
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print(f"✅ 错误信息: {error_msg}")
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# 验证错误信息包含有用信息
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if "not found" in error_msg and "/clearly/nonexistent/path/video.mp4" in error_msg:
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print("✅ 错误信息包含完整路径和明确描述")
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else:
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print("⚠️ 错误信息可能不够详细")
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return True
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except Exception as e:
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print(f"❌ 错误清晰性测试失败: {e}")
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return False
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def test_no_silent_failures():
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"""测试没有静默失败"""
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print("\n🚫 测试没有静默失败")
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print("=" * 50)
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try:
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# 检查依赖
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try:
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import scenedetect
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except ImportError:
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print("⚠️ PySceneDetect不可用，跳过此测试")
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return True
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from python_core.services.video_splitter import VideoSplitterService
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service = VideoSplitterService()
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# 测试无效输入，应该明确失败而不是静默
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result = service.analyze_video("/invalid/path.mp4")
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# 结果应该明确标记为失败
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if result.success:
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print("❌ 应该失败但标记为成功")
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return False
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# 应该有明确的错误信息
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if not result.error:
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print("❌ 失败但没有错误信息")
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return False
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print(f"✅ 明确失败，错误信息: {result.error}")
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# 错误信息应该有用
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if "not found" in result.error.lower() or "invalid" in result.error.lower():
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print("✅ 错误信息有用且具体")
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else:
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print(f"⚠️ 错误信息可能不够具体: {result.error}")
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return True
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except Exception as e:
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print(f"❌ 静默失败测试失败: {e}")
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return False
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def main():
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"""主函数"""
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print("🚀 简化测试：验证移除降级逻辑的效果")
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try:
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# 运行测试
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tests = [
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test_basic_functionality,
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test_validation_without_fallback,
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test_error_clarity,
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test_no_silent_failures
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]
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results = []
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for test in tests:
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try:
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result = test()
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results.append(result)
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except Exception as e:
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print(f"❌ 测试 {test.__name__} 异常: {e}")
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results.append(False)
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# 总结
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print("\n" + "=" * 60)
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print("📊 移除降级逻辑测试总结")
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print("=" * 60)
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passed = sum(results)
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total = len(results)
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print(f"通过测试: {passed}/{total}")
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if passed == total:
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print("🎉 所有测试通过！移除降级逻辑成功！")
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print("\n✅ 关键改进:")
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print(" 1. 快速失败 - 问题立即暴露，不会被掩盖")
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print(" 2. 明确错误 - 错误信息清晰、具体、有用")
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print(" 3. 一致行为 - 不同环境下行为完全一致")
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print(" 4. 易于调试 - 问题根源容易定位和修复")
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print(" 5. 避免隐患 - 不会因为降级而隐藏配置问题")
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print("\n🔧 错误处理原则:")
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print(" 1. 立即失败 - 发现问题立即抛出异常")
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print(" 2. 明确信息 - 提供足够的上下文信息")
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print(" 3. 结构化异常 - 使用专门的异常类型")
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print(" 4. 完整传播 - 保持错误信息的完整性")
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print(" 5. 用户友好 - 错误信息对用户有帮助")
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return 0
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else:
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print("⚠️ 部分测试失败")
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return 1
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except Exception as e:
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print(f"❌ 测试过程中出错: {e}")
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import traceback
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traceback.print_exc()
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return 1
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if __name__ == "__main__":
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exit_code = main()
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sys.exit(exit_code)
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