feat(evolution): evolve.py validation + helpers (#9)

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2026-07-07 10:12:15 -04:00
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"""进化引擎辅助函数与验证逻辑。
验证(validate_skill / validate_system / validate_tool)、受保护区构建、
编辑预算退火、rank-and-clip 裁剪、格式化工具等纯/准纯函数。
Task 8 将在此基础上添加进化入口(evolve_skill / evolve_system / evolve_tool)。
不依赖 app/ 或 adapters/LLMProvider 通过 core.protocols 注入)。
"""
from __future__ import annotations
import json
import re
from dataclasses import asdict, dataclass, field
from typing import TYPE_CHECKING, Any
from loguru import logger
from core.evolution.patch import (
APPENDIX_END,
APPENDIX_START,
momentum_region_bounds,
)
if TYPE_CHECKING:
from core.evolution.protocols import SkillStore
from core.evolution.types import RejectedEdit
from core.protocols import LLMProvider
# =========================================================================
# 0. 局部类型
# =========================================================================
@dataclass
class ValidationResult:
"""格式验证的结果。
属性:
passed: 验证是否通过。
errors: 失败原因列表;passed=True 时为空。
"""
passed: bool
errors: list[str] = field(default_factory=list)
# =========================================================================
# A. 内部辅助函数
# =========================================================================
def _parse_frontmatter(text: str) -> dict[str, str] | None:
"""解析 YAML frontmatter,失败返回 None。
参数:
text: Markdown 文件全文。
返回:
frontmatter 字典,无有效 frontmatter 时返回 None。
"""
import yaml as _yaml
match = re.match(r"^---\n(.*?)\n---", text, re.DOTALL)
if not match:
return None
try:
return _yaml.safe_load(match.group(1))
except _yaml.YAMLError:
return None
def _strip_appendix_region(text: str) -> str:
"""剥离 appendix 受保护区(含 marker),返回其余正文。
宽松语义:APPENDIX_START / APPENDIX_END 任一缺失即当作「无区」原样返回,不报错。
"""
if APPENDIX_START in text and APPENDIX_END in text:
head, rest = text.split(APPENDIX_START, 1)
_, tail = rest.split(APPENDIX_END, 1)
return head.rstrip() + tail
return text
def _strip_momentum_region(text: str) -> str:
"""剥离 momentum 受保护区(含 marker),返回其余正文。
严格语义:委托 momentum_region_bounds 做配对检测,
marker 损坏/不配对时 raise ValueError。
异常:
ValueError: momentum marker 损坏/不配对。
"""
bounds = momentum_region_bounds(text)
if bounds is None:
return text
start, end = bounds
return text[:start].rstrip() + text[end:]
def _strip_protected_regions(text: str) -> str:
"""剥离 appendix + momentum 两个受保护区,返回正文部分。
先 appendix(宽松),再 momentum(严格)——顺序有关:
appendix 宽松剥离不会误杀 momentum marker。
异常:
ValueError: momentum marker 损坏/不配对。
"""
text = _strip_appendix_region(text)
text = _strip_momentum_region(text)
return text
def _check_length(original: str, evolved: str) -> list[str]:
"""检查改写后长度是否在 [0.3x, 2.0x] 范围内。
仅比正文,剔除 appendix + momentum 两区。orig_len==0 时跳过。
参数:
original: 改写前全文。
evolved: 改写后全文。
返回:
错误消息列表(空列表表示通过)。
"""
errors: list[str] = []
orig_body = _strip_protected_regions(original)
evol_body = _strip_protected_regions(evolved)
orig_len = len(orig_body)
if orig_len == 0:
return errors
ratio = len(evol_body) / orig_len
evol_len = len(evol_body)
if ratio > 2.0:
errors.append(
f"长度超限: {evol_len} 字符是原文 {orig_len}{ratio:.1f} 倍 (上限 2.0)"
)
if ratio < 0.3:
errors.append(
f"长度不足: {evol_len} 字符是原文 {orig_len}{ratio:.1f} 倍 (下限 0.3)"
)
return errors
def _check_code_blocks(text: str) -> list[str]:
"""检查代码块是否闭合。
参数:
text: 待检查的文本。
返回:
错误消息列表(空列表表示通过)。
"""
count = text.count("```")
if count % 2 != 0:
return [f"Markdown 格式错误: 代码块未闭合 (``` 出现 {count} 次)"]
return []
def _extract_section(text: str, heading: str) -> str | None:
"""提取 ## heading 到下一个 ## 之间的文本。
参数:
text: Markdown 全文。
heading: 二级标题名。
返回:
该 section 的完整文本(含标题行),未找到时返回 None。
"""
pattern = rf"(## {re.escape(heading)}.*?)(?=\n## |\Z)"
match = re.search(pattern, text, re.DOTALL)
return match.group(1).strip() if match else None
# =========================================================================
# B. 受保护区构建
# =========================================================================
def _appendix_span(content: str) -> str:
"""返回 appendix 受保护区整段(含 marker);不存在返回空串。
参数:
content: 文本全文。
返回:
appendix 区的完整文本(含 marker),或空串。
"""
if APPENDIX_START in content and APPENDIX_END in content:
start = content.index(APPENDIX_START)
end = content.index(APPENDIX_END) + len(APPENDIX_END)
return content[start:end]
return ""
def _momentum_span(content: str) -> str:
"""返回 momentum 受保护区整段(含 marker);不存在返回空串。
委托 momentum_region_bounds 做配对检测:
marker 损坏/不配对时由其 raise ValueError。
参数:
content: 文本全文。
返回:
momentum 区的完整文本(含 marker),或空串。
异常:
ValueError: momentum marker 损坏/不配对。
"""
bounds = momentum_region_bounds(content)
if bounds is None:
return ""
start, end = bounds
return content[start:end]
def _skill_protected_spans(text: str) -> list[str]:
"""Skill 冻结块:frontmatter + appendix 区 + momentum 区(各项可选)。
参数:
text: Skill 文件全文。
返回:
冻结文本块列表。
"""
spans: list[str] = []
match = re.match(r"^---\n.*?\n---", text, re.DOTALL)
if match:
spans.append(match.group(0))
appendix = _appendix_span(text)
if appendix:
spans.append(appendix)
momentum = _momentum_span(text)
if momentum:
spans.append(momentum)
return spans
def _system_protected_spans(text: str) -> list[str]:
"""System Prompt 冻结块:能力边界 / 输出格式 / 视频树结构 三段 + appendix 区。
参数:
text: system.md 全文。
返回:
冻结文本块列表。
"""
spans: list[str] = [
section
for section in (
_extract_section(text, name)
for name in ("能力边界", "输出格式", "视频树结构")
)
if section
]
appendix = _appendix_span(text)
if appendix:
spans.append(appendix)
return spans
def _tool_protected_spans(text: str) -> list[str]:
"""Tool Prompt 冻结块:输出格式段 + appendix 区。
参数:
text: Tool Prompt 全文。
返回:
冻结文本块列表。
"""
spans: list[str] = []
section = _extract_section(text, "输出格式")
if section:
spans.append(section)
appendix = _appendix_span(text)
if appendix:
spans.append(appendix)
return spans
# =========================================================================
# C. 验证函数
# =========================================================================
def validate_skill(original: str, evolved: str) -> ValidationResult:
"""校验 Skill 改写结果。
检查项: frontmatter 三字段保留(name / description / task_type)、
长度比在 [0.3, 2.0]、代码块闭合。
参数:
original: 改写前的 Skill 文件全文。
evolved: 改写后的 Skill 文件全文。
返回:
ValidationResult 实例。
"""
errors: list[str] = []
orig_fm = _parse_frontmatter(original)
evol_fm = _parse_frontmatter(evolved)
if orig_fm is None:
errors.append("原文缺少有效 frontmatter")
elif evol_fm is None:
errors.append("改写后缺少有效 frontmatter")
else:
for key in ("name", "description", "task_type"):
if orig_fm.get(key) != evol_fm.get(key):
errors.append(
f"frontmatter 字段 {key} 被修改: "
f"{orig_fm.get(key)!r}{evol_fm.get(key)!r}"
)
errors.extend(_check_length(original, evolved))
errors.extend(_check_code_blocks(evolved))
return ValidationResult(passed=len(errors) == 0, errors=errors)
def validate_system(original: str, evolved: str) -> ValidationResult:
"""校验 System Prompt 改写结果。
检查项: 三个冻结区值比较(能力边界 / 输出格式 / 视频树结构)、
长度比在 [0.3, 2.0]、代码块闭合。
参数:
original: 改写前的 system.md 全文。
evolved: 改写后的 system.md 全文。
返回:
ValidationResult 实例。
"""
errors: list[str] = []
frozen_sections = ["能力边界", "输出格式", "视频树结构"]
for section_name in frozen_sections:
orig_section = _extract_section(original, section_name)
if orig_section is None:
continue
evol_section = _extract_section(evolved, section_name)
if evol_section is None:
errors.append(f"冻结区 '## {section_name}' 在改写后缺失")
elif orig_section != evol_section:
errors.append(f"冻结区 '## {section_name}' 在改写后被修改")
errors.extend(_check_length(original, evolved))
errors.extend(_check_code_blocks(evolved))
return ValidationResult(passed=len(errors) == 0, errors=errors)
def validate_tool(
orig_extract: str,
evol_extract: str,
orig_verify: str,
evol_verify: str,
) -> ValidationResult:
"""校验 Tool Prompt 改写结果。
检查项: 输出格式 section 保留(per file)、长度比在 [0.3, 2.0]。
与 skill / system 不同,**不检查代码块闭合**。
参数:
orig_extract: 改写前的 extract prompt。
evol_extract: 改写后的 extract prompt。
orig_verify: 改写前的 verify prompt。
evol_verify: 改写后的 verify prompt。
返回:
ValidationResult 实例。
"""
errors: list[str] = []
for label, orig, evol in [
("extract", orig_extract, evol_extract),
("verify", orig_verify, evol_verify),
]:
orig_fmt = _extract_section(orig, "输出格式")
if orig_fmt is not None:
evol_fmt = _extract_section(evol, "输出格式")
if evol_fmt is None:
errors.append(f"{label}: 冻结区 '## 输出格式' 在改写后缺失")
elif orig_fmt != evol_fmt:
errors.append(f"{label}: 冻结区 '## 输出格式' 在改写后被修改")
errors.extend(_check_length(orig, evol))
return ValidationResult(passed=len(errors) == 0, errors=errors)
# =========================================================================
# D. 纯数学
# =========================================================================
def edit_budget_at(global_step: int, total_steps: int, start: int, end: int) -> int:
"""按 global_step 线性退火的 per-target 编辑预算。
借鉴 SkillOpt LinearScheduler:在 [0, total_steps] 上把预算从 start
线性退火到 end。total_steps<=1 直接返回 start(避免单步取到最小值)。
round 用 Python banker's roundingmax(end, ...) 兜底硬下限。
参数:
global_step: 当前全局步(0-indexed)。
total_steps: 退火地平线(step 数),即分母。
start: 退火起点(需 >= end)。
end: 退火终点(亦为硬下限)。
返回:
当步 per-target 最大 edit 条数。
异常:
AssertionError: start < end。
"""
assert start >= end, (
f"edit_budget_at 要求 start >= end,实际 start={start}, end={end}"
)
if total_steps <= 1:
return start
t = min(global_step, total_steps) / total_steps
return max(end, round(start + (end - start) * t))
# =========================================================================
# E. JSON 解析(进化版本,不同于 metrics 版)
# =========================================================================
def _parse_llm_json(raw: str) -> dict | None:
"""从 LLM 响应中解析 JSON。
仅两种策略:(1) 提取 ```json 代码块;(2) 直接 json.loads。
不做 outermost braces 推断、不用 json_repair。失败返回 None。
参数:
raw: LLM 原始输出文本。
返回:
解析后的字典;失败或结果非 dict 时返回 None。
"""
text = raw.strip()
# 策略 1:提取 ```json ... ``` 代码块
code_block = re.search(r"```json\s*\n(.*?)```", text, re.DOTALL)
if code_block:
text = code_block.group(1).strip()
# 策略 2:直接解析
try:
result = json.loads(text)
if isinstance(result, dict):
return result
return None
except (json.JSONDecodeError, ValueError):
return None
# =========================================================================
# F. rank_and_clipasync
# =========================================================================
def _select_top_edits(
indices: list[Any],
edits: list[dict[str, Any]],
max_edits: int,
) -> list[dict[str, Any]]:
"""按 rank LLM 给出的优先级索引筛选 edits。
依次保留首个 max_edits 条合法、不重复、在范围内的索引对应 edit。
用 type(idx) is int(非 isinstance)以排除 bool。
参数:
indices: rank LLM 返回的 0-based 优先级索引。
edits: 候选 edit 列表。
max_edits: 最多保留条数。
返回:
按优先级顺序保留的 edit 列表。
"""
selected: list[dict[str, Any]] = []
seen: set[int] = set()
for idx in indices:
if type(idx) is int and 0 <= idx < len(edits) and idx not in seen:
selected.append(edits[idx])
seen.add(idx)
if len(selected) >= max_edits:
break
return selected
async def _request_rank_indices(
llm: LLMProvider,
prompts: str,
original: str,
edits: list[dict[str, Any]],
max_edits: int,
label: str,
) -> list[int]:
"""调 rank LLM 取重要性降序的索引列表。
守 P5:响应无法解析或 selected_indices 非列表时直接 raise ValueError。
参数:
llm: LLM 调用端口。
prompts: evolve_rank 模板内容。
original: 当前 prompt 全文(排序上下文)。
edits: 候选 edit 列表。
max_edits: 本轮预算上限。
label: 目标标签(仅用于报错信息)。
返回:
rank LLM 返回的原始索引列表(尚未去重/越界过滤)。
异常:
ValueError: 响应无 selected_indices,或其值非列表。
"""
edits_desc = "\n".join(
f"[{i}] op={e.get('op')} support_count={e.get('support_count', 0)} "
f"target={str(e.get('target', ''))[:60]!r} "
f"content={str(e.get('content', ''))[:60]!r}"
for i, e in enumerate(edits)
)
user_msg = (
f"## 当前文件\n\n{original}\n\n"
f"## 候选 edits{len(edits)} 条,预算 {max_edits} 条)\n\n{edits_desc}\n\n"
f"请选出最重要的 {max_edits} 条,返回其 0-based 索引(重要性降序)。"
)
response = await llm.chat(
[
{"role": "system", "content": prompts},
{"role": "user", "content": user_msg},
]
)
parsed = _parse_llm_json(response.content)
if not parsed or "selected_indices" not in parsed:
raise ValueError(f"{label} rank LLM 未返回 selected_indices,拒绝静默截断")
indices = parsed["selected_indices"]
if not isinstance(indices, list):
raise ValueError(f"{label} rank LLM selected_indices 非列表")
return indices
async def rank_and_clip(
llm: LLMProvider,
original_content: str,
edits: list[dict[str, Any]],
max_edits: int,
label: str,
*,
rank_prompt: str = "",
) -> tuple[list[dict[str, Any]], dict[str, Any]]:
"""超预算时调 rank LLM 排序取 top-L;未超则原样返回。
三级降级:LLM rank → _select_top_edits → empty → fallback to edits[:max_edits]。
对 rank LLM 的输出波动一律优雅降级而非中止。
参数:
llm: LLM 调用端口。
original_content: 当前 prompt 全文(排序上下文)。
edits: 候选 edit 列表。
max_edits: 本轮预算上限。
label: 目标标签(skill/system/tool,仅用于日志)。
rank_prompt: evolve_rank 模板内容。
返回:
(裁剪后 edits, {"triggered": bool, "clipped": int})。
"""
if len(edits) <= max_edits:
return edits, {"triggered": False, "clipped": 0}
try:
indices = await _request_rank_indices(
llm, rank_prompt, original_content, edits, max_edits, label
)
except Exception as exc:
logger.warning(
"{} rank LLM 排序不可用({});退化为按原序取前 {}",
label,
exc,
max_edits,
)
indices = []
selected = _select_top_edits(indices, edits, max_edits)
if not selected:
selected = edits[:max_edits]
logger.warning("{} rank 有效索引为 0;退化为按原序取前 {}", label, max_edits)
elif len(selected) < max_edits:
logger.warning(
"{} rank 仅得 {} 条有效(<预算 {});按更保守的条数应用",
label,
len(selected),
max_edits,
)
logger.info("{} edits 超预算裁剪 {}->{}", label, len(edits), len(selected))
return selected, {"triggered": True, "clipped": len(edits) - len(selected)}
# =========================================================================
# G. resolve_skill_file
# =========================================================================
def resolve_skill_file(skill_store: SkillStore, task_type: str) -> str:
"""按运行时规则解析 task_type 对应的 skill 文件名。
转换规则:小写 + 空格替换为短横线 + .md 后缀。
若 store 中不存在匹配文件,退化到 default-strategy.md。
参数:
skill_store: 版本化技能读取端口。
task_type: 题目任务类型(如 "Action Reasoning")。
返回:
匹配的 skill 文件名。
"""
file_name = f"{task_type.lower().replace(' ', '-')}.md"
available = skill_store.list_skill_files()
if file_name in available:
return file_name
return "default-strategy.md"
# =========================================================================
# H. 格式化辅助
# =========================================================================
def _format_case_samples(cases: list[Any]) -> str:
"""将 CaseSample 列表格式化为 LLM 可读文本。
对 trace 中的 tool_output 截断到 500 字符。
参数:
cases: CaseSample 实例列表(也兼容 dict)。
返回:
格式化后的多行文本。
"""
lines: list[str] = []
for case in cases:
if not isinstance(case, dict):
case = asdict(case)
lines.append(f"### {case.get('question_id', 'unknown')}")
lines.append(f"- question: {case.get('question', '')}")
options = case.get("options", [])
if options:
lines.append(f"- options: {json.dumps(options, ensure_ascii=False)}")
lines.append(f"- answer: {case.get('answer', '')}")
lines.append(f"- prediction: {case.get('prediction', '')}")
lines.append(f"- error_type: {case.get('error_type', '')}")
lines.append(f"- selection_reason: {case.get('selection_reason', '')}")
trace = case.get("trace", [])
if trace:
lines.append("- trace:")
for step in trace:
output_text = str(step.get("tool_output", ""))
if len(output_text) > 500:
output_text = output_text[:500] + "..."
lines.append(
f" - step {step.get('step', '?')}: "
f"tool={step.get('tool_name', '')} "
f"args={json.dumps(step.get('tool_args', {}), ensure_ascii=False)} "
f"output={output_text}"
)
lines.append("")
return "\n".join(lines)
def _format_spans(spans: list[dict[str, Any]]) -> str:
"""将工具 span 字典列表格式化为 LLM 可读文本。
对 tool_output 截断到 500 字符。
参数:
spans: span 字典列表,每个包含 step / tool_name / tool_args 等字段。
返回:
格式化后的多行文本。
"""
lines: list[str] = []
for span in spans:
lines.append(f"### step {span.get('step', '?')}")
lines.append(f"- tool_name: {span.get('tool_name', '')}")
lines.append(
f"- tool_args: {json.dumps(span.get('tool_args', {}), ensure_ascii=False)}"
)
output_text = str(span.get("tool_output", ""))
if len(output_text) > 500:
output_text = output_text[:500] + "..."
lines.append(f"- tool_output: {output_text}")
lines.append(
f"- extraction_completeness: {span.get('extraction_completeness', '')}"
)
lines.append(f"- hallucination_rate: {span.get('hallucination_rate', '')}")
missed = span.get("missed_info_tags", [])
if missed:
lines.append(
f"- missed_info_tags: {json.dumps(missed, ensure_ascii=False)}"
)
hall_tags = span.get("hallucination_tags", [])
if hall_tags:
lines.append(
f"- hallucination_tags: {json.dumps(hall_tags, ensure_ascii=False)}"
)
lines.append("")
return "\n".join(lines)
def _format_rejected_edits(rejected: list[RejectedEdit]) -> str:
"""将已验证无效的改法列表格式化为 LLM 可读文本。
gate 证据格式:W=... L=... E={:.2f} delta_hat={:+.3f}
参数:
rejected: RejectedEdit 实例列表。
返回:
格式化后的多行文本。
"""
lines: list[str] = []
for edit in rejected:
lines.append(f"### {edit.target_file} | delta {edit.delta:+.2f}")
lines.append(f"- 已验证无效的改法: {edit.change_summary}")
if edit.gate_e_value is not None:
lines.append(
f"- 已验证无效: W={edit.gate_w} L={edit.gate_l} "
f"E={edit.gate_e_value:.2f} δ̂={edit.gate_delta_shrunk:+.3f}"
)
lines.append("")
return "\n".join(lines)
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"""core/evolution/evolve.py 单元测试。
覆盖验证函数、编辑预算退火、resolve_skill_file、内部辅助函数、
受保护区构建、JSON 解析、rank_and_clip、格式化工具。
"""
from __future__ import annotations
import json
from unittest.mock import AsyncMock
import pytest
from core.evolution.evolve import (
_check_code_blocks,
_check_length,
_extract_section,
_format_case_samples,
_format_rejected_edits,
_format_spans,
_parse_frontmatter,
_parse_llm_json,
_select_top_edits,
_skill_protected_spans,
_strip_appendix_region,
_strip_momentum_region,
_strip_protected_regions,
_system_protected_spans,
_tool_protected_spans,
edit_budget_at,
rank_and_clip,
resolve_skill_file,
validate_skill,
validate_system,
validate_tool,
)
from core.evolution.patch import (
APPENDIX_END,
APPENDIX_START,
MOMENTUM_END,
MOMENTUM_START,
)
from core.evolution.types import RejectedEdit
# =========================================================================
# A. 内部辅助函数
# =========================================================================
class TestParseFrontmatter:
"""_parse_frontmatter 测试。"""
def test_valid_frontmatter(self) -> None:
text = "---\nname: test\ndescription: d\n---\nbody"
result = _parse_frontmatter(text)
assert result == {"name": "test", "description": "d"}
def test_no_frontmatter(self) -> None:
assert _parse_frontmatter("no frontmatter here") is None
def test_invalid_yaml(self) -> None:
text = "---\n: : invalid\n---\nbody"
assert _parse_frontmatter(text) is None
def test_empty_frontmatter(self) -> None:
text = "---\n\n---\nbody"
result = _parse_frontmatter(text)
assert result is None # yaml.safe_load("") returns None
class TestStripAppendixRegion:
"""_strip_appendix_region 测试。"""
def test_no_markers(self) -> None:
text = "hello world"
assert _strip_appendix_region(text) == text
def test_with_markers(self) -> None:
text = f"before\n{APPENDIX_START}\nappendix stuff\n{APPENDIX_END}\nafter"
result = _strip_appendix_region(text)
assert "appendix stuff" not in result
assert "before" in result
assert "after" in result
def test_only_start_marker(self) -> None:
text = f"before\n{APPENDIX_START}\nno end marker"
assert _strip_appendix_region(text) == text
def test_only_end_marker(self) -> None:
text = f"before\n{APPENDIX_END}\nno start marker"
assert _strip_appendix_region(text) == text
class TestStripMomentumRegion:
"""_strip_momentum_region 测试。"""
def test_no_markers(self) -> None:
text = "hello world"
assert _strip_momentum_region(text) == text
def test_with_markers(self) -> None:
text = f"before\n{MOMENTUM_START}\nmomentum stuff\n{MOMENTUM_END}\nafter"
result = _strip_momentum_region(text)
assert "momentum stuff" not in result
assert "before" in result
assert "after" in result
def test_damaged_markers_raise(self) -> None:
text = f"before\n{MOMENTUM_START}\nno end marker"
with pytest.raises(ValueError, match="momentum marker 损坏"):
_strip_momentum_region(text)
class TestStripProtectedRegions:
"""_strip_protected_regions 测试(先 appendix 后 momentum)。"""
def test_both_regions(self) -> None:
text = (
f"body\n"
f"{APPENDIX_START}\nappendix\n{APPENDIX_END}\n"
f"{MOMENTUM_START}\nmomentum\n{MOMENTUM_END}\n"
f"tail"
)
result = _strip_protected_regions(text)
assert "appendix" not in result
assert "momentum" not in result
assert "body" in result
assert "tail" in result
class TestCheckLength:
"""_check_length 测试。"""
def test_normal_ratio(self) -> None:
orig = "x" * 100
evol = "x" * 120
assert _check_length(orig, evol) == []
def test_too_long(self) -> None:
orig = "x" * 100
evol = "x" * 300
errors = _check_length(orig, evol)
assert len(errors) == 1
assert "超限" in errors[0]
def test_too_short(self) -> None:
orig = "x" * 100
evol = "x" * 10
errors = _check_length(orig, evol)
assert len(errors) == 1
assert "不足" in errors[0]
def test_orig_empty(self) -> None:
assert _check_length("", "something") == []
class TestCheckCodeBlocks:
"""_check_code_blocks 测试。"""
def test_even_count(self) -> None:
text = "```python\ncode\n```"
assert _check_code_blocks(text) == []
def test_odd_count(self) -> None:
text = "```python\ncode"
errors = _check_code_blocks(text)
assert len(errors) == 1
assert "未闭合" in errors[0]
def test_no_blocks(self) -> None:
assert _check_code_blocks("no code blocks") == []
class TestExtractSection:
"""_extract_section 测试。"""
def test_found(self) -> None:
text = "intro\n## 能力边界\nfrozen content\n## other\nmore"
result = _extract_section(text, "能力边界")
assert result is not None
assert "frozen content" in result
assert "## 能力边界" in result
def test_not_found(self) -> None:
text = "intro\n## other\nmore"
assert _extract_section(text, "不存在") is None
def test_last_section(self) -> None:
text = "intro\n## 最后段\ncontent at end"
result = _extract_section(text, "最后段")
assert result is not None
assert "content at end" in result
# =========================================================================
# B. 受保护区构建
# =========================================================================
class TestSkillProtectedSpans:
"""_skill_protected_spans 测试。"""
def test_with_frontmatter(self) -> None:
text = "---\nname: test\n---\nbody"
spans = _skill_protected_spans(text)
assert any("---" in s for s in spans)
def test_with_appendix(self) -> None:
text = f"body\n{APPENDIX_START}\nnotes\n{APPENDIX_END}"
spans = _skill_protected_spans(text)
assert any(APPENDIX_START in s for s in spans)
def test_with_momentum(self) -> None:
text = f"body\n{MOMENTUM_START}\nmomentum\n{MOMENTUM_END}"
spans = _skill_protected_spans(text)
assert any(MOMENTUM_START in s for s in spans)
def test_empty(self) -> None:
assert _skill_protected_spans("plain text") == []
class TestSystemProtectedSpans:
"""_system_protected_spans 测试。"""
def test_frozen_sections(self) -> None:
text = "intro\n## 能力边界\ncontent1\n## 输出格式\ncontent2\n## 视频树结构\ncontent3\n## other\nmore"
spans = _system_protected_spans(text)
assert len(spans) == 3
def test_with_appendix(self) -> None:
text = f"body\n{APPENDIX_START}\nnotes\n{APPENDIX_END}"
spans = _system_protected_spans(text)
assert len(spans) == 1
class TestToolProtectedSpans:
"""_tool_protected_spans 测试。"""
def test_output_format_section(self) -> None:
text = "intro\n## 输出格式\nformat\n## other\nmore"
spans = _tool_protected_spans(text)
assert any("输出格式" in s for s in spans)
def test_no_output_format(self) -> None:
text = "intro\n## other\nmore"
spans = _tool_protected_spans(text)
assert len(spans) == 0
# =========================================================================
# C. 验证函数
# =========================================================================
class TestValidateSkill:
"""validate_skill 测试。"""
def test_identical_passes(self) -> None:
content = "---\nname: test\ndescription: d\ntask_type: t\n---\nbody"
assert validate_skill(content, content).passed
def test_changed_frontmatter_fails(self) -> None:
orig = "---\nname: a\ndescription: d\ntask_type: t\n---\nbody"
evol = "---\nname: b\ndescription: d\ntask_type: t\n---\nbody"
result = validate_skill(orig, evol)
assert not result.passed
assert any("name" in e for e in result.errors)
def test_length_ratio_too_short_fails(self) -> None:
orig = "---\nname: a\ndescription: d\ntask_type: t\n---\n" + "x" * 1000
evol = "---\nname: a\ndescription: d\ntask_type: t\n---\nshort"
result = validate_skill(orig, evol)
assert not result.passed
assert any("不足" in e for e in result.errors)
def test_length_ratio_too_long_fails(self) -> None:
orig = "---\nname: a\ndescription: d\ntask_type: t\n---\nshort"
evol = "---\nname: a\ndescription: d\ntask_type: t\n---\n" + "x" * 1000
result = validate_skill(orig, evol)
assert not result.passed
assert any("超限" in e for e in result.errors)
def test_unclosed_code_block_fails(self) -> None:
orig = "---\nname: a\ndescription: d\ntask_type: t\n---\nbody"
evol = "---\nname: a\ndescription: d\ntask_type: t\n---\nbody\n```"
result = validate_skill(orig, evol)
assert not result.passed
assert any("未闭合" in e for e in result.errors)
def test_missing_original_frontmatter(self) -> None:
result = validate_skill("no frontmatter", "no frontmatter")
assert not result.passed
assert any("原文缺少" in e for e in result.errors)
def test_missing_evolved_frontmatter(self) -> None:
orig = "---\nname: a\ndescription: d\ntask_type: t\n---\nbody"
result = validate_skill(orig, "no frontmatter body")
assert not result.passed
class TestValidateSystem:
"""validate_system 测试。"""
def test_identical_passes(self) -> None:
content = "intro\n## 能力边界\nfrozen\n## 输出格式\nfrozen2\n## other\nbody"
assert validate_system(content, content).passed
def test_changed_frozen_section_fails(self) -> None:
orig = "intro\n## 能力边界\noriginal\n## other\nbody"
evol = "intro\n## 能力边界\nchanged\n## other\nbody"
result = validate_system(orig, evol)
assert not result.passed
assert any("能力边界" in e for e in result.errors)
def test_missing_frozen_section_fails(self) -> None:
orig = "intro\n## 能力边界\nfrozen\n## other\nbody"
evol = "intro\n## other\nbody that is similar length content padding"
result = validate_system(orig, evol)
assert not result.passed
assert any("缺失" in e for e in result.errors)
def test_no_frozen_sections_passes(self) -> None:
content = "intro\n## other section\nbody content"
assert validate_system(content, content).passed
def test_code_block_check(self) -> None:
content = "## 能力边界\nfrozen\n## other\nbody\n```unclosed"
result = validate_system(content, content)
assert not result.passed
class TestValidateTool:
"""validate_tool 测试。"""
def test_identical_passes(self) -> None:
extract = "## 输出格式\nfixed\n## other\nbody"
verify = "## 输出格式\nfixed2\n## other\nbody2"
assert validate_tool(extract, extract, verify, verify).passed
def test_no_code_block_check(self) -> None:
"""validate_tool 不检查代码块闭合(与 skill/system 不同)。"""
extract = "## 输出格式\nfixed\n```\nunclosed"
assert validate_tool(extract, extract, "v", "v").passed
def test_changed_output_format_fails(self) -> None:
orig = "## 输出格式\noriginal format\n## other\nbody"
evol = "## 输出格式\nchanged format\n## other\nbody"
result = validate_tool(orig, evol, "v", "v")
assert not result.passed
assert any("输出格式" in e for e in result.errors)
def test_verify_output_format_checked_too(self) -> None:
extract = "## 输出格式\nfixed\n## other\nbody"
orig_verify = "## 输出格式\nfixed_v\n## other\nbody_v"
evol_verify = "## 输出格式\nchanged_v\n## other\nbody_v"
result = validate_tool(extract, extract, orig_verify, evol_verify)
assert not result.passed
# =========================================================================
# D. 纯数学
# =========================================================================
class TestEditBudget:
"""edit_budget_at 测试。"""
def test_start_at_zero(self) -> None:
assert edit_budget_at(0, 100, 5, 2) == 5
def test_end_at_total(self) -> None:
assert edit_budget_at(100, 100, 5, 2) == 2
def test_total_steps_one(self) -> None:
assert edit_budget_at(0, 1, 5, 2) == 5
def test_start_less_than_end_asserts(self) -> None:
with pytest.raises(AssertionError):
edit_budget_at(0, 100, 2, 5)
def test_mid_step(self) -> None:
result = edit_budget_at(50, 100, 5, 2)
assert 2 <= result <= 5
def test_beyond_total_clamped(self) -> None:
"""global_step 超过 total_steps 时被钳住在 end。"""
assert edit_budget_at(200, 100, 5, 2) == 2
def test_equal_start_end(self) -> None:
assert edit_budget_at(50, 100, 3, 3) == 3
def test_total_steps_zero(self) -> None:
"""total_steps <= 1 直接返回 start。"""
assert edit_budget_at(0, 0, 5, 2) == 5
# =========================================================================
# E. JSON 解析
# =========================================================================
class TestParseLlmJson:
"""_parse_llm_json 测试。"""
def test_plain_json(self) -> None:
raw = '{"key": "value"}'
assert _parse_llm_json(raw) == {"key": "value"}
def test_fenced_json(self) -> None:
raw = 'text before\n```json\n{"key": "value"}\n```\ntext after'
assert _parse_llm_json(raw) == {"key": "value"}
def test_non_dict_returns_none(self) -> None:
raw = "[1, 2, 3]"
assert _parse_llm_json(raw) is None
def test_invalid_json_returns_none(self) -> None:
raw = "not json at all"
assert _parse_llm_json(raw) is None
def test_empty_string(self) -> None:
assert _parse_llm_json("") is None
# =========================================================================
# F. rank_and_clip
# =========================================================================
class TestSelectTopEdits:
"""_select_top_edits 测试。"""
def test_valid_indices(self) -> None:
edits = [{"op": "a"}, {"op": "b"}, {"op": "c"}]
result = _select_top_edits([2, 0], edits, 2)
assert result == [{"op": "c"}, {"op": "a"}]
def test_dedup(self) -> None:
edits = [{"op": "a"}, {"op": "b"}]
result = _select_top_edits([0, 0, 1], edits, 3)
assert len(result) == 2
def test_out_of_bounds_skipped(self) -> None:
edits = [{"op": "a"}, {"op": "b"}]
result = _select_top_edits([5, 0, -1], edits, 3)
assert result == [{"op": "a"}]
def test_bool_excluded(self) -> None:
"""type(True) is int 返回 True 但 type(idx) is int 排除 bool。"""
edits = [{"op": "a"}, {"op": "b"}]
result = _select_top_edits([True, False, 0], edits, 3)
assert result == [{"op": "a"}]
def test_max_edits_limit(self) -> None:
edits = [{"op": "a"}, {"op": "b"}, {"op": "c"}]
result = _select_top_edits([0, 1, 2], edits, 2)
assert len(result) == 2
class TestRankAndClip:
"""rank_and_clip 测试。"""
@pytest.mark.asyncio
async def test_within_budget_passthrough(self) -> None:
"""edits <= max_edits 时原样返回。"""
llm = AsyncMock()
edits = [{"op": "a"}, {"op": "b"}]
result, info = await rank_and_clip(llm, "content", edits, 5, "test")
assert result == edits
assert info["triggered"] is False
llm.chat.assert_not_called()
@pytest.mark.asyncio
async def test_llm_rank_success(self) -> None:
"""LLM 成功返回索引时按优先级裁剪。"""
llm = AsyncMock()
response = AsyncMock()
response.content = json.dumps({"selected_indices": [2, 0]})
llm.chat.return_value = response
edits = [{"op": "a"}, {"op": "b"}, {"op": "c"}]
result, info = await rank_and_clip(llm, "content", edits, 2, "test")
assert len(result) == 2
assert result[0] == {"op": "c"}
assert info["triggered"] is True
@pytest.mark.asyncio
async def test_llm_failure_fallback(self) -> None:
"""LLM 失败时退化为按原序取前 max_edits 条。"""
llm = AsyncMock()
llm.chat.side_effect = Exception("LLM down")
edits = [{"op": "a"}, {"op": "b"}, {"op": "c"}]
result, info = await rank_and_clip(llm, "content", edits, 2, "test")
assert len(result) == 2
assert result == [{"op": "a"}, {"op": "b"}]
assert info["triggered"] is True
# =========================================================================
# G. resolve_skill_file
# =========================================================================
class TestResolveSkillFile:
"""resolve_skill_file 测试。"""
def test_direct_match(self) -> None:
class FakeStore:
def list_skill_files(self) -> list[str]:
return ["action-reasoning.md", "default-strategy.md"]
def read_skill(self, f: str) -> str:
return ""
assert resolve_skill_file(FakeStore(), "Action Reasoning") == "action-reasoning.md"
def test_fallback_to_default(self) -> None:
class FakeStore:
def list_skill_files(self) -> list[str]:
return ["default-strategy.md"]
def read_skill(self, f: str) -> str:
return ""
assert resolve_skill_file(FakeStore(), "Unknown Type") == "default-strategy.md"
def test_case_insensitive(self) -> None:
class FakeStore:
def list_skill_files(self) -> list[str]:
return ["temporal-reasoning.md"]
def read_skill(self, f: str) -> str:
return ""
assert resolve_skill_file(FakeStore(), "Temporal Reasoning") == "temporal-reasoning.md"
# =========================================================================
# H. 格式化辅助
# =========================================================================
class TestFormatCaseSamples:
"""_format_case_samples 测试。"""
def test_basic_format(self) -> None:
cases = [
{
"question_id": "q1",
"question": "What?",
"options": ["A", "B"],
"answer": "A",
"prediction": "B",
"error_type": "wrong",
"selection_reason": "test",
"trace": [],
}
]
result = _format_case_samples(cases)
assert "q1" in result
assert "What?" in result
def test_trace_truncation(self) -> None:
cases = [
{
"question_id": "q1",
"question": "Q",
"options": [],
"answer": "A",
"prediction": "B",
"error_type": "e",
"selection_reason": "s",
"trace": [
{
"step": 1,
"tool_name": "t",
"tool_args": {},
"tool_output": "x" * 600,
}
],
}
]
result = _format_case_samples(cases)
assert "..." in result
class TestFormatSpans:
"""_format_spans 测试。"""
def test_basic_format(self) -> None:
spans = [
{
"step": 1,
"tool_name": "extract",
"tool_args": {"query": "test"},
"tool_output": "result",
"extraction_completeness": 0.9,
"hallucination_rate": 0.1,
}
]
result = _format_spans(spans)
assert "extract" in result
assert "0.9" in result
def test_output_truncation(self) -> None:
spans = [
{
"step": 1,
"tool_name": "t",
"tool_args": {},
"tool_output": "x" * 600,
"extraction_completeness": 0.5,
"hallucination_rate": 0.0,
}
]
result = _format_spans(spans)
assert "..." in result
class TestFormatRejectedEdits:
"""_format_rejected_edits 测试。"""
def test_with_gate_evidence(self) -> None:
edits = [
RejectedEdit(
target_file="skill.md",
target_type="skill",
change_summary="changed X",
delta=-0.05,
source_version="v2",
epoch=3,
gate_w=5,
gate_l=8,
gate_e_value=0.42,
gate_delta_shrunk=-0.123,
)
]
result = _format_rejected_edits(edits)
assert "W=5" in result
assert "L=8" in result
assert "E=0.42" in result
assert "δ̂=-0.123" in result
def test_without_gate_evidence(self) -> None:
edits = [
RejectedEdit(
target_file="skill.md",
target_type="skill",
change_summary="changed X",
delta=-0.05,
source_version="v2",
epoch=3,
)
]
result = _format_rejected_edits(edits)
assert "skill.md" in result
assert "changed X" in result
assert "W=" not in result