refactor(): 重构动态用例生成逻辑并解耦核心组件

- 将 `CaseGenerator` 拆分为 `CaseDataLoader`（数据加载）和 `CaseGenerator`（用例构造），实现单一职责原则。
- 引入 `TestTemplateBase` 作为纯净的方法挂载容器，避免逻辑代码污染测试用例。
- 优化 YAML 解析流程，将文件扫描、参数化解析与 pytest 方法构建逻辑完全分离。
- 改进装饰器写法，使用更直观的 @ 语法糖处理 Allure 和 pytest.mark.parametrize。
- 增强执行日志，通过类型注解和实例引用记录更详细的运行上下文。

core/creator.py

@@ -0,0 +1,124 @@
+#!/usr/bin/env python
+# coding=utf-8
+
+"""
+@author: CNWei,ChenWei
+@Software: PyCharm
+@contact: t6g888@163.com
+@file: creator
+@date: 2026/3/6 10:40
+@desc: 
+"""
+import logging
+
+import allure
+import pytest
+from pathlib import Path
+from core import settings
+from core.executor import WorkflowExecutor
+from core.session import Session
+from commons.exchange import Exchange
+from commons.file_processors.yaml_processor import YamlProcessor as FileHandle
+from typing import Any, Dict, List, Type, Generator, Tuple
+
+logger = logging.getLogger(__name__)
+
+# 初始化全局组件
+session = Session(settings.base_url)
+exchanger = Exchange(settings.DATA_DIR / "extract.yaml")  # 指向 data/extract.yaml
+executor = WorkflowExecutor(session, exchanger)
+
+
+class TestTemplateBase:
+    """
+    具体的测试用例容器。
+    此映射类不包含任何逻辑方法，仅用于承载由 Loader 挂载的 test_* 方法。
+    """
+    pass
+
+
+class CaseDataLoader:
+    """
+    职责 1: 数据加载器
+    负责与底层存储（YAML文件）打交道，输出标准化的原始数据对象
+    """
+
+    @staticmethod
+    def fetch_yaml_cases(cases_dir: str) -> Generator[Tuple[Path, Dict], None, None]:
+        """扫描目录并迭代返回 (文件路径, 原始内容)"""
+        yaml_files = Path(cases_dir).glob("**/test_*.yaml")
+        for file_path in yaml_files:
+            yield file_path, FileHandle(file_path)
+
+    @staticmethod
+    def parse_parametrize(raw_data: Dict, default_name: str) -> Tuple[List[str], List[List[Any]], List[str]]:
+        """解析参数化结构，返回 (字段名列表, 数据值列表, ID列表)"""
+        if "parametrize" in raw_data:
+            fields = raw_data["parametrize"][0]
+            values = raw_data["parametrize"][1:]
+            ids = [f"{v[0]}" for v in values]
+        else:
+            fields = ["case_data"]
+            values = [[raw_data]]
+            ids = [raw_data.get("title", default_name)]
+        return fields, values, ids
+
+
+class CaseGenerator:
+    """
+    职责 2: 用例构造工厂
+    负责将数据转化为 pytest 装饰的方法，并挂载到目标类
+    """
+
+    @classmethod
+    def build_and_register(cls, target_cls: Type[TestTemplateBase], cases_dir: str):
+        # 1. 通过 Loader 获取数据
+        for file_path, raw_data in CaseDataLoader.fetch_yaml_cases(cases_dir):
+            # 2. 解析参数化信息
+            fields, values, ids = CaseDataLoader.parse_parametrize(raw_data, file_path.stem)
+
+            # 3. 生成执行函数 (闭包)
+            dynamic_test_method = cls._create_case_method(raw_data, fields, values, ids)
+
+            # 4. 挂载
+            method_name = f"test_{file_path.stem}"
+            setattr(target_cls, method_name, dynamic_test_method)
+            logger.debug(f"Successfully registered: {method_name}")
+
+    @staticmethod
+    def _create_case_method(case_template: Dict, fields: List[str], values: List[Any], ids: List[str]):
+        """封装具体的 pytest 执行节点"""
+
+        # 预取 Allure 层级信息
+        epic = case_template.get("epic", settings.allure_epic)
+        feature = case_template.get("feature", settings.allure_feature)
+        story = case_template.get("story", settings.allure_story)
+
+        @allure.epic(epic)
+        @allure.feature(feature)
+        @allure.story(story)
+        @pytest.mark.parametrize("case_args", values, ids=ids)
+        def build_actual_case(instance: TestTemplateBase, case_args: List[Any]):
+            # 数据组装
+            current_params = dict(zip(fields, case_args))
+            case_exec_data = {**case_template, **current_params}
+            case_title = current_params.get("title", "未命名用例")
+
+            # 日志记录 (利用 instance 标注来源)
+            logger.info(f"🚀 [Runner] Class: {instance.__class__.__name__} | Case: {case_title}")
+
+            # 执行与断言
+            allure.dynamic.title(case_title)
+            executor.perform(case_exec_data)
+
+        # 手动链路装饰 (Allure)
+        # run_actual_case = allure.epic(epic)(run_actual_case)
+        # run_actual_case = allure.feature(feature)(run_actual_case)
+        # run_actual_case = allure.story(story)(run_actual_case)
+
+        return build_actual_case
+
+
+if __name__ == '__main__':
+    # --- 引导执行 ---
+    CaseGenerator.build_and_register(TestTemplateBase, settings.TEST_CASE_DIR)