feat(strategy): registry 扩展自研目录扫描(AST)+文件读写+py_compile; __init__ 惰性化(纯逻辑模块脱离 fastapi 可单测) [nas]

tests/api/test_strategy_registry.py

@@ -1,5 +1,8 @@
 """Tests for sanguo_api.strategy_registry (Task S1.3)."""
-from sanguo_api.strategy_registry import list_strategies, strategy_params, STRATEGY_NAMES
+from sanguo_api.strategy_registry import (
+    list_strategies, strategy_params, STRATEGY_NAMES,
+    list_strategy_files, read_strategy_file,
+)
 
 
 def test_list_strategies_shape():
@@ -27,3 +30,30 @@ def test_strategy_params_keys():
 def test_strategy_params_unknown_returns_empty():
     p = strategy_params("NoSuchStrategy_xyz")
     assert p == {"parameters": [], "defaults": {}}
+
+
+def test_list_strategy_files_returns_dirs():
+    data = list_strategy_files()
+    assert "files" in data and isinstance(data["files"], list)
+    dirs = {f["dir"] for f in data["files"]}
+    # 自研目录至少出现一个（sanguo_portfolio/strategies 有真实策略文件）
+    assert any("sanguo_trader/strategy" in d or "sanguo_portfolio/strategies" in d for d in dirs)
+
+
+def test_list_strategy_files_item_shape():
+    data = list_strategy_files()
+    if not data["files"]:
+        return
+    f = data["files"][0]
+    for k in ("name", "dir", "class_name", "type"):
+        assert k in f
+
+
+def test_read_strategy_file_returns_code():
+    data = list_strategy_files()
+    if not data["files"]:
+        return
+    f = data["files"][0]
+    content = read_strategy_file(f["name"])
+    assert "code" in content and isinstance(content["code"], str)
+    assert content["class_name"] == f["class_name"]