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https://ghfast.top/https://github.com/aeroxw/tick-stock-panel.git
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shy3130
4696fef959
引入第四种执行后端 composite: 声明式引用多个子策略, 复用现有注册表/缓存/撮合全链路。 核心设计: - 退出采用来源投影(每个子策略 exit 仅在自己持仓窗口生效, 不串平其他子策略仓位) - 评分用标准化排名加权(跨子策略可比, 不依赖 per-strategy 的 min-max 量纲) - 来源归因(entry_signal_code 标记来源子策略) 后端: - engine.py: CompositeSpec 数据模型, 两阶段引用校验(孤儿移除/嵌套禁止/asset_types 子集/≤8 上限), _run_composite_strategy 选股执行, find_dependents 删除防护, override_loader 注入保证子策略与单独跑同口径 - composite.py(新): 选股 merge_results + 回测 merge_signal_matrices 合并器(退出投影/排名融合/归因) - backtest/strategy.py: composite 回测分支(特征计划合并/逐子信号/统一风控/basic_filter/归因) - api/strategy.py: POST /composite/save 端点, _strategy_detail 返回 composite_children(含 name/source), 删除依赖 409 防护 - monitor.py: 实时监控 fail-closed(回退盘后缓存) - walkforward.py: 对 composite 显式中文报错 - worker.py: _strategy_dirs 补 composite 目录(修复回测子进程找不到 composite 的 bug) 前端: - CompositeStrategyDialog(新): 创建/编辑弹窗(自动生成 composite_ ID, 权重归一, 类型标签, 增删子策略) - StrategySettingsDialog: composite 设置面板(子策略增删改/归一/类型标签) - StrategyBacktest: 回测页 composite 适配(分组/参数区/结果区展示子策略构成) - api.ts: 类型扩展(source/backend 加 composite, composite_children 含 name/source) 测试: 36 个 composite 专项测试(加载/选股/回测退出投影/排名/归因/override 透传/API/删除防护), 端到端验证真实内置策略回测通过
546 lines
20 KiB
Python
546 lines
20 KiB
Python
"""叠加策略 (composite) 加载、引用校验与选股合并测试。
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覆盖 CONTRIBUTING §9 矩阵中的「策略」与「回测」相关最低要求:
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- 加载解析正确, source 推断为 composite
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- 引用缺失 → 移除孤儿 composite, 不波及无辜策略(插件隔离)
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- 禁止嵌套 composite、asset_types 不一致、超过上限均 fail-closed
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- find_dependents 用于删除防护
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- 选股 union / intersect 合并, 标准化排名加权融合 score
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子策略用 polars_expr 后端(返回 True)以便用轻量 DataFrame 验证合并逻辑,
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不依赖 matrix_native 的矩阵加载。回测矩阵路径在 M2 单独测试。
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"""
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from __future__ import annotations
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from datetime import date
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import numpy as np
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import polars as pl
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from app.strategy.engine import StrategyDataContext, StrategyEngine
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def _filter_strategy_code(strategy_id: str, body: str = "return pl.lit(True)") -> str:
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"""生成一个 polars_expr 策略文件(filter 始终命中全部标的)。"""
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return f'''import polars as pl
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META = {{
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"id": "{strategy_id}",
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"name": "{strategy_id}",
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"asset_types": ["stock"],
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"timeframes": ["1d"],
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"scoring": {{"close": 1.0}},
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}}
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EXECUTION_BACKEND = "polars_expr"
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def filter(df, params):
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{body}
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'''
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def _composite_code(
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strategy_id: str,
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children: list[tuple[str, float]],
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*,
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name: str | None = None,
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asset_types: list[str] | None = None,
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merge_mode: str = "union",
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min_confirm: int = 0,
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) -> str:
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"""生成一个声明式 composite 策略文件。"""
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children_repr = ", ".join(
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f'{{"strategy_id": "{cid}", "weight": {w}}}' for cid, w in children
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)
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ats = asset_types or ["stock"]
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ats_repr = ", ".join(f'"{a}"' for a in ats)
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params = (
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f'{{"id": "merge_mode", "type": "select", '
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f'"options": ["union", "intersect"], "default": "{merge_mode}"}}, '
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f'{{"id": "min_confirm", "type": "int", "default": {min_confirm}}}'
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)
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return f'''META = {{
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"id": "{strategy_id}",
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"name": "{name or strategy_id}",
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"asset_types": [{ats_repr}],
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"timeframes": ["1d"],
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"params": [{params}],
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"children": [{children_repr}],
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}}
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EXECUTION_BACKEND = "composite"
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'''
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# ───────────────────────── 加载与引用校验 ─────────────────────────
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def test_composite_loads_and_infers_source(tmp_path):
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child_dir = tmp_path / "strategies" / "custom"
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comp_dir = tmp_path / "strategies" / "composite"
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child_dir.mkdir(parents=True)
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comp_dir.mkdir(parents=True)
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(child_dir / "child_a.py").write_text(_filter_strategy_code("child_a"), encoding="utf-8")
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(comp_dir / "custom_blend.py").write_text(
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_composite_code("custom_blend", [("child_a", 1.0)]), encoding="utf-8"
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)
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engine = StrategyEngine(strategy_dirs=[child_dir, comp_dir])
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assert engine.has("custom_blend")
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blend = engine.get("custom_blend")
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assert blend.execution_backend == "composite"
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assert blend.source == "composite"
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assert blend.composite is not None
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assert blend.composite.children[0].strategy_id == "child_a"
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assert engine.load_errors() == []
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def test_composite_missing_child_is_orphaned_without_blocking_others(tmp_path):
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"""引用不存在的子策略 → composite 被移除并记错, 但不影响其他正常策略。"""
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child_dir = tmp_path / "strategies" / "custom"
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comp_dir = tmp_path / "strategies" / "composite"
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child_dir.mkdir(parents=True)
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comp_dir.mkdir(parents=True)
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(child_dir / "real_child.py").write_text(_filter_strategy_code("real_child"), encoding="utf-8")
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# composite 引用了不存在的 ghost_child
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(comp_dir / "orphan_blend.py").write_text(
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_composite_code("orphan_blend", [("ghost_child", 1.0)]), encoding="utf-8"
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)
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# 另一个正常 composite 不受影响
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(comp_dir / "healthy_blend.py").write_text(
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_composite_code("healthy_blend", [("real_child", 1.0)]), encoding="utf-8"
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)
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engine = StrategyEngine(strategy_dirs=[child_dir, comp_dir])
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assert not engine.has("orphan_blend") # 孤儿被移除
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assert engine.has("real_child") # 子策略不受影响
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assert engine.has("healthy_blend") # 其他 composite 不受影响(隔离原则)
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errors = engine.load_errors()
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orphan_errors = [e for e in errors if "orphan_blend" in e["file"]]
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assert len(orphan_errors) == 1
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assert "ghost_child" in orphan_errors[0]["error"]
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def test_nested_composite_rejected(tmp_path):
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"""禁止 composite 嵌套 composite。"""
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child_dir = tmp_path / "strategies" / "custom"
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comp_dir = tmp_path / "strategies" / "composite"
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child_dir.mkdir(parents=True)
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comp_dir.mkdir(parents=True)
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(child_dir / "leaf.py").write_text(_filter_strategy_code("leaf"), encoding="utf-8")
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(comp_dir / "inner.py").write_text(
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_composite_code("inner", [("leaf", 1.0)]), encoding="utf-8"
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)
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(comp_dir / "outer.py").write_text(
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_composite_code("outer", [("inner", 1.0)]), encoding="utf-8"
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)
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engine = StrategyEngine(strategy_dirs=[child_dir, comp_dir])
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assert engine.has("inner") # 单层 composite 合法
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assert not engine.has("outer") # 嵌套被拒
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outer_errors = [e for e in engine.load_errors() if "outer" in e["file"]]
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assert len(outer_errors) == 1
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assert "嵌套" in outer_errors[0]["error"] or "nested" in outer_errors[0]["error"].lower()
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def test_composite_asset_type_mismatch_rejected(tmp_path):
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"""composite 与子策略 asset_types 不一致 → fail-closed。"""
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child_dir = tmp_path / "strategies" / "custom"
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comp_dir = tmp_path / "strategies" / "composite"
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child_dir.mkdir(parents=True)
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comp_dir.mkdir(parents=True)
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(child_dir / "etf_child.py").write_text(
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_filter_strategy_code("etf_child"), encoding="utf-8"
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)
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# 子策略是 stock(默认), composite 声明 etf
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(comp_dir / "mismatched.py").write_text(
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_composite_code("mismatched", [("etf_child", 1.0)], asset_types=["etf"]),
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encoding="utf-8",
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)
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engine = StrategyEngine(strategy_dirs=[child_dir, comp_dir])
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assert not engine.has("mismatched")
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errors = [e for e in engine.load_errors() if "mismatched" in e["file"]]
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assert len(errors) == 1
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assert "asset_types" in errors[0]["error"]
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def test_composite_asset_type_subset_is_allowed(tmp_path):
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"""子策略支持的范围 ⊇ composite 声明 → 合法(子集关系)。
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内置策略常声明 ['stock','etf'], 用户叠加时只关注 stock, 不应被拒绝。
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"""
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child_dir = tmp_path / "strategies" / "custom"
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comp_dir = tmp_path / "strategies" / "composite"
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child_dir.mkdir(parents=True)
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comp_dir.mkdir(parents=True)
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# 子策略支持 stock + etf
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multi_code = _filter_strategy_code("multi").replace(
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'"asset_types": ["stock"]', '"asset_types": ["stock", "etf"]'
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)
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(child_dir / "multi.py").write_text(multi_code, encoding="utf-8")
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# composite 只声明 stock(子集) → 合法
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(comp_dir / "subset_ok.py").write_text(
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_composite_code("subset_ok", [("multi", 1.0)], asset_types=["stock"]),
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encoding="utf-8",
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)
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engine = StrategyEngine(strategy_dirs=[child_dir, comp_dir])
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assert engine.has("subset_ok")
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assert engine.load_errors() == []
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def test_composite_exceeds_child_limit_rejected(tmp_path):
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"""子策略数量超过 MAX_COMPOSITE_CHILDREN → fail-closed。"""
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from app.strategy.engine import MAX_COMPOSITE_CHILDREN
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child_dir = tmp_path / "strategies" / "custom"
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comp_dir = tmp_path / "strategies" / "composite"
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child_dir.mkdir(parents=True)
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comp_dir.mkdir(parents=True)
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for i in range(MAX_COMPOSITE_CHILDREN + 1):
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(child_dir / f"c{i}.py").write_text(_filter_strategy_code(f"c{i}"), encoding="utf-8")
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children = [(f"c{i}", 1.0) for i in range(MAX_COMPOSITE_CHILDREN + 1)]
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(comp_dir / "too_many.py").write_text(
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_composite_code("too_many", children), encoding="utf-8"
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)
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engine = StrategyEngine(strategy_dirs=[child_dir, comp_dir])
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assert not engine.has("too_many")
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errors = [e for e in engine.load_errors() if "too_many" in e["file"]]
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assert len(errors) == 1
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assert "limit" in errors[0]["error"] or "exceed" in errors[0]["error"]
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def test_composite_with_filter_fn_rejected(tmp_path):
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"""composite 策略声明了 filter 函数 → 加载失败。"""
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comp_dir = tmp_path / "strategies" / "composite"
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comp_dir.mkdir(parents=True)
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code = _composite_code("bad", []) + "def filter(df, params):\n return pl.lit(True)\n"
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(comp_dir / "bad.py").write_text(code, encoding="utf-8")
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engine = StrategyEngine(strategy_dirs=[comp_dir])
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assert not engine.has("bad")
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assert any("bad" in e["file"] for e in engine.load_errors())
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# ───────────────────────── find_dependents ─────────────────────────
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def test_find_dependents_locates_referencing_composites(tmp_path):
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child_dir = tmp_path / "strategies" / "custom"
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comp_dir = tmp_path / "strategies" / "composite"
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child_dir.mkdir(parents=True)
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comp_dir.mkdir(parents=True)
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(child_dir / "shared.py").write_text(_filter_strategy_code("shared"), encoding="utf-8")
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(child_dir / "other.py").write_text(_filter_strategy_code("other"), encoding="utf-8")
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(comp_dir / "blend_a.py").write_text(
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_composite_code("blend_a", [("shared", 0.5), ("other", 0.5)]), encoding="utf-8"
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)
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(comp_dir / "blend_b.py").write_text(
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_composite_code("blend_b", [("shared", 1.0)]), encoding="utf-8"
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)
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engine = StrategyEngine(strategy_dirs=[child_dir, comp_dir])
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assert sorted(engine.find_dependents("shared")) == ["blend_a", "blend_b"]
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assert engine.find_dependents("other") == ["blend_a"]
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assert engine.find_dependents("nonexistent") == []
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# ───────────────────────── 选股合并 ─────────────────────────
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def _stock_panel(symbols: list[str], scores: list[float]) -> pl.DataFrame:
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"""构造一个含 close 列(用于 scoring)的轻量 panel。"""
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return pl.DataFrame({
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"symbol": symbols,
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"date": [date(2026, 1, 2)] * len(symbols),
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"close": scores,
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})
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def test_composite_union_merge_combines_children(tmp_path):
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"""union 模式: 两个子策略命中不同标的 → 合并后包含全部。"""
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child_dir = tmp_path / "strategies" / "custom"
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comp_dir = tmp_path / "strategies" / "composite"
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child_dir.mkdir(parents=True)
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comp_dir.mkdir(parents=True)
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# child_a 只选 000001, child_b 只选 600000
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(child_dir / "child_a.py").write_text(
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_filter_strategy_code("child_a", body='return pl.col("symbol") == "000001.SZ"'),
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encoding="utf-8",
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)
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(child_dir / "child_b.py").write_text(
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_filter_strategy_code("child_b", body='return pl.col("symbol") == "600000.SH"'),
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encoding="utf-8",
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)
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(comp_dir / "union_blend.py").write_text(
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_composite_code("union_blend", [("child_a", 0.5), ("child_b", 0.5)]),
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encoding="utf-8",
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)
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engine = StrategyEngine(strategy_dirs=[child_dir, comp_dir])
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context = StrategyDataContext(
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asset_type="stock",
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timeframe="1d",
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as_of=date(2026, 1, 2),
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current=_stock_panel(["000001.SZ", "600000.SH"], [10.0, 20.0]),
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)
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# 禁用基础过滤(测试 panel 无 amount 等列); composite 会把 basic_filter 透传给子策略
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result = engine.run(
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"union_blend", context, overrides={"basic_filter": {"enabled": False}}
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)
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symbols = {row["symbol"] for row in result.rows}
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assert symbols == {"000001.SZ", "600000.SH"}
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assert result.total == 2
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# 合并 score 应该来自排名归一加权(两个子各命中一个, 均为各自第一 → norm=1)
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assert all(0 < result.scores[s] <= 100 for s in result.scores)
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def test_composite_intersect_requires_min_confirm(tmp_path):
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"""intersect 模式: 只有多个子策略共同命中才入选。"""
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child_dir = tmp_path / "strategies" / "custom"
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comp_dir = tmp_path / "strategies" / "composite"
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child_dir.mkdir(parents=True)
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comp_dir.mkdir(parents=True)
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# 两个子策略都选 000001(共振), 但 child_b 还选 600000(非共振)
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(child_dir / "child_a.py").write_text(
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_filter_strategy_code("child_a", body='return pl.col("symbol") == "000001.SZ"'),
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encoding="utf-8",
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)
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(child_dir / "child_b.py").write_text(
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_filter_strategy_code(
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"child_b",
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body='return pl.col("symbol").is_in(["000001.SZ", "600000.SH"])',
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),
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encoding="utf-8",
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)
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(comp_dir / "intersect_blend.py").write_text(
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_composite_code(
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"intersect_blend",
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[("child_a", 0.5), ("child_b", 0.5)],
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merge_mode="intersect",
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min_confirm=2,
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),
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encoding="utf-8",
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)
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engine = StrategyEngine(strategy_dirs=[child_dir, comp_dir])
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context = StrategyDataContext(
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asset_type="stock",
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timeframe="1d",
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as_of=date(2026, 1, 2),
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current=_stock_panel(["000001.SZ", "600000.SH"], [10.0, 20.0]),
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)
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result = engine.run(
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"intersect_blend", context, overrides={"basic_filter": {"enabled": False}}
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)
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# 只有 000001 同时被两个子策略命中
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symbols = {row["symbol"] for row in result.rows}
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assert symbols == {"000001.SZ"}
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def test_composite_weighted_score_ranking(tmp_path):
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"""权重影响最终排名: 高权重子策略的最优标的应排前。"""
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from app.strategy import composite as composite_mod
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from app.strategy.engine import StrategyResult
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# 直接测合并器: 两个子策略, 命中相同标的但内部排名不同。
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as_of = date(2026, 1, 2)
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res_a = StrategyResult(
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as_of=as_of,
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strategy_id="a",
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scores={"X": 100.0, "Y": 50.0}, # X 优于 Y
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)
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res_b = StrategyResult(
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as_of=as_of,
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strategy_id="b",
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scores={"X": 10.0, "Y": 90.0}, # Y 优于 X
|
|
)
|
|
|
|
# b 权重远大于 a → 合并后 Y 应得分更高
|
|
merged = composite_mod.merge_results(
|
|
[res_a, res_b],
|
|
[0.1, 0.9],
|
|
"union",
|
|
0,
|
|
as_of=as_of,
|
|
strategy_id="blend",
|
|
)
|
|
# a 中 X rank=1(norm=1), Y rank=2(norm=0)
|
|
# b 中 X rank=2(norm=0), Y rank=1(norm=1)
|
|
# X = (0.1*1 + 0.9*0)/1.0 = 0.1; Y = (0.1*0 + 0.9*1)/1.0 = 0.9
|
|
assert merged.scores["Y"] > merged.scores["X"]
|
|
|
|
|
|
def test_composite_no_scores_uses_neutral(tmp_path):
|
|
"""子策略无 score 时用中性分, 不报错也不污染。"""
|
|
from app.strategy import composite as composite_mod
|
|
from app.strategy.engine import StrategyResult
|
|
|
|
as_of = date(2026, 1, 2)
|
|
res = StrategyResult(
|
|
as_of=as_of,
|
|
strategy_id="a",
|
|
rows=[{"symbol": "X"}, {"symbol": "Y"}],
|
|
scores={}, # 无 score
|
|
)
|
|
|
|
merged = composite_mod.merge_results([res], [1.0], "union", 0, as_of=as_of, strategy_id="b")
|
|
|
|
assert set(merged.scores) == {"X", "Y"}
|
|
assert all(abs(s - 50.0) < 0.01 for s in merged.scores.values()) # 中性分 0.5*100
|
|
|
|
|
|
def test_composite_empty_children_returns_empty(tmp_path):
|
|
"""空子结果列表 → 返回空 StrategyResult。"""
|
|
from app.strategy import composite as composite_mod
|
|
|
|
as_of = date(2026, 1, 2)
|
|
merged = composite_mod.merge_results(
|
|
[], [], "union", 0, as_of=as_of, strategy_id="empty"
|
|
)
|
|
assert merged.total == 0
|
|
assert merged.scores == {}
|
|
|
|
|
|
# ───────────────────────── 回测合并: merge_signal_matrices ─────────────────────────
|
|
|
|
|
|
def _make_sig(shape, *, entry, exit_, score=None):
|
|
"""构造一个轻量 SignalMatrix(用 make_signal_matrix 保证 dtype/只读)。"""
|
|
from app.backtest.matrix import make_signal_matrix
|
|
|
|
entry_arr = np.array(entry, dtype=np.uint8)
|
|
exit_arr = np.array(exit_, dtype=np.uint8)
|
|
score_arr = (
|
|
np.array(score, dtype=np.float32)
|
|
if score is not None
|
|
else np.full(shape, 50.0, dtype=np.float32)
|
|
)
|
|
return make_signal_matrix(
|
|
shape,
|
|
entry=entry_arr,
|
|
exit=exit_arr,
|
|
score=score_arr,
|
|
)
|
|
|
|
|
|
def test_merge_signal_matrices_union_entry():
|
|
"""union 模式: entry = OR(各子 entry)。"""
|
|
from app.strategy import composite as composite_mod
|
|
|
|
shape = (3, 2)
|
|
# child A 选中 asset 0; child B 选中 asset 1
|
|
sig_a = _make_sig(shape, entry=[[1, 0], [0, 0], [0, 0]], exit_=[[0, 0], [0, 0], [0, 0]])
|
|
sig_b = _make_sig(shape, entry=[[0, 1], [0, 0], [0, 0]], exit_=[[0, 0], [0, 0], [0, 0]])
|
|
|
|
merged = composite_mod.merge_signal_matrices(
|
|
shape, [sig_a, sig_b], [("a", 0.5), ("b", 0.5)], "union", 0, max_hold=2
|
|
)
|
|
|
|
assert merged.entry[0, 0] == 1 # A 选中
|
|
assert merged.entry[0, 1] == 1 # B 选中
|
|
assert merged.entry[1].sum() == 0 # 后续无新入场
|
|
|
|
|
|
def test_merge_signal_matrices_intersect_entry():
|
|
"""intersect 模式: 只有多个子策略同时命中才入选。"""
|
|
from app.strategy import composite as composite_mod
|
|
|
|
shape = (2, 2)
|
|
# asset 0 被两个子策略同时命中(共振); asset 1 只被 A 命中
|
|
sig_a = _make_sig(shape, entry=[[1, 1], [0, 0]], exit_=[[0, 0], [0, 0]])
|
|
sig_b = _make_sig(shape, entry=[[1, 0], [0, 0]], exit_=[[0, 0], [0, 0]])
|
|
|
|
merged = composite_mod.merge_signal_matrices(
|
|
shape, [sig_a, sig_b], [("a", 0.5), ("b", 0.5)], "intersect", 2, max_hold=2
|
|
)
|
|
|
|
assert merged.entry[0, 0] == 1 # 共振入选
|
|
assert merged.entry[0, 1] == 0 # 非共振排除
|
|
|
|
|
|
def test_merge_exit_projection_prevents_cross_close():
|
|
"""退出投影: 子策略 B 的 exit 不会平掉子策略 A 选中的仓位。
|
|
|
|
场景: A 在 t=0 买入 asset 0, max_hold=3 → A 的持仓窗口 t∈[0,2]。
|
|
B 没买 asset 0, 但 B 在 t=1 对 asset 0 标了 exit(模拟无关退出信号)。
|
|
期望: 合并 exit 在 t=1 的 asset 0 应为 0(B 未持仓, 其 exit 被投影清零)。
|
|
"""
|
|
from app.strategy import composite as composite_mod
|
|
|
|
shape = (3, 1)
|
|
sig_a = _make_sig(shape, entry=[[1], [0], [0]], exit_=[[0], [0], [0]])
|
|
# B 没买 asset 0, 但在 t=1 标了 exit
|
|
sig_b = _make_sig(shape, entry=[[0], [0], [0]], exit_=[[0], [1], [0]])
|
|
|
|
merged = composite_mod.merge_signal_matrices(
|
|
shape, [sig_a, sig_b], [("a", 1.0), ("b", 1.0)], "union", 0, max_hold=3
|
|
)
|
|
|
|
# 关键断言: B 的 exit(t=1) 被投影清零, 因为 B 在 asset 0 没有持仓窗口
|
|
assert merged.exit[1, 0] == 0, "B 的退出信号不应平掉 A 的仓位"
|
|
|
|
|
|
def test_merge_exit_respects_child_own_exit():
|
|
"""退出投影: 子策略自己的 exit 在自己持仓窗口内有效。
|
|
|
|
场景: A 在 t=0 买入, 在 t=2 标 exit; max_hold=3。
|
|
期望: 合并 exit 在 t=2 为 1(A 自己的退出在其持仓窗口内, 生效)。
|
|
"""
|
|
from app.strategy import composite as composite_mod
|
|
|
|
shape = (4, 1)
|
|
sig_a = _make_sig(shape, entry=[[1], [0], [0], [0]], exit_=[[0], [0], [1], [0]])
|
|
|
|
merged = composite_mod.merge_signal_matrices(
|
|
shape, [sig_a], [("a", 1.0)], "union", 0, max_hold=3
|
|
)
|
|
|
|
assert merged.exit[2, 0] == 1 # A 自己的 exit 在窗口内, 生效
|
|
|
|
|
|
def test_merge_exit_max_hold_caps_window():
|
|
"""退出投影: 持仓窗口由 max_hold 封顶; 超出窗口后 exit 不生效。
|
|
|
|
场景: A 在 t=0 买入, max_hold=2 → 窗口 t∈[0,1]。A 在 t=3 标 exit(超出窗口)。
|
|
期望: 合并 exit 在 t=3 为 0(超出持仓窗口, exit 无效)。
|
|
"""
|
|
from app.strategy import composite as composite_mod
|
|
|
|
shape = (5, 1)
|
|
sig_a = _make_sig(shape, entry=[[1], [0], [0], [0], [0]], exit_=[[0], [0], [0], [1], [0]])
|
|
|
|
merged = composite_mod.merge_signal_matrices(
|
|
shape, [sig_a], [("a", 1.0)], "union", 0, max_hold=2
|
|
)
|
|
|
|
assert merged.exit[1, 0] == 0 # 窗口内 A 无 exit
|
|
assert merged.exit[3, 0] == 0 # 超出窗口, exit 无效
|
|
|
|
|
|
def test_merge_entry_signal_code_records_source():
|
|
"""合并后 entry_signal_code 标记来源子策略(归因用)。"""
|
|
from app.strategy import composite as composite_mod
|
|
|
|
shape = (1, 2)
|
|
sig_a = _make_sig(shape, entry=[[1, 0]], exit_=[[0, 0]])
|
|
sig_b = _make_sig(shape, entry=[[0, 1]], exit_=[[0, 0]])
|
|
|
|
merged = composite_mod.merge_signal_matrices(
|
|
shape, [sig_a, sig_b], [("child_a", 1.0), ("child_b", 1.0)], "union", 0, max_hold=1
|
|
)
|
|
|
|
# asset 0 来自 child A (code=0), asset 1 来自 child B (code=1)
|
|
assert merged.entry_signal_code[0, 0] == 0
|
|
assert merged.entry_signal_code[0, 1] == 1
|
|
assert merged.entry_signal_ids == ("composite:child_a", "composite:child_b")
|