Files
selfrelease 74e35fed96 feat: 添加可配置场景注册表与规则引擎
- 新增场景基类、配置加载、注册表与原语模块
- 添加 r10_refund_split 规则及场景 JSON Schema
- 扩展 scan 引擎与 scenarios API
- 新增场景注册表/配置/集成测试
- 更新前端 App、api、labels 支持新场景
2026-06-17 09:57:02 +08:00

101 lines
3.1 KiB
Python

"""配置驱动场景(B 快捷通道)测试:原语库、YAML 加载与校验、ConfigScenario 扫描。
纯逻辑,无需数据库。验证「新增 YAML → 自动注册 → 可扫描产出线索草稿」链路。
"""
from __future__ import annotations
import pytest
from pydantic import ValidationError
from app.scenarios.config import (
ScenarioConfig,
load_yaml_scenarios,
)
from app.scenarios.primitives import cliff_drop, ratio_threshold, threshold_edge
from app.scenarios.registry import SCENARIO_REGISTRY, get_scenario
# ---------- 原语库 ----------
def test_threshold_edge_primitive_hits():
rows = [{"refund_amount": 450000, "customer": f"C{i}"} for i in range(5)]
res = threshold_edge(
rows,
{"amount_field": "refund_amount", "threshold": 500000, "key_field": "customer"},
)
assert res.hit
assert res.score > 0
assert res.evidence["near_count"] == 5
assert len(res.subjects["keys"]) == 5
def test_threshold_edge_primitive_no_hit_when_spread():
rows = [{"refund_amount": 100000}, {"refund_amount": 900000}]
res = threshold_edge(rows, {"amount_field": "refund_amount", "threshold": 500000})
assert not res.hit
assert res.score == 0.0
def test_threshold_edge_requires_positive_threshold():
with pytest.raises(ValueError):
threshold_edge([], {"amount_field": "x", "threshold": 0})
def test_cliff_drop_primitive():
rows = [{"m": 0, "v": 1.0}, {"m": 1, "v": 0.95}, {"m": 2, "v": 0.1}]
res = cliff_drop(rows, {"index_field": "m", "value_field": "v"})
assert res.hit
assert res.evidence["cliff_at"] == 2
def test_ratio_threshold_primitive():
rows = [{"z": 0.9}, {"z": 0.95}]
res = ratio_threshold(
rows, {"value_field": "z", "agg": "mean", "op": ">=", "threshold": 0.8}
)
assert res.hit
assert res.score == 0.8
# ---------- YAML 配置校验 ----------
def test_scenario_config_validation_error():
with pytest.raises(ValidationError):
ScenarioConfig(code="R99") # 缺 title/risk_domain/label/detector
def test_load_yaml_scenarios_registers_r10():
load_yaml_scenarios() # 加载内置 rules/*.yaml(含 R10 示例)
assert "R10" in SCENARIO_REGISTRY
cls = get_scenario("R10")
assert cls is not None
assert cls.label == "退款拆分"
assert cls.risk_domain == "收入"
# ---------- ConfigScenario 扫描 ----------
def test_config_scenario_scan_produces_clue_draft():
load_yaml_scenarios()
cls = get_scenario("R10")
rows = [{"refund_amount": 460000 + i * 5000, "customer": f"政企{i}"} for i in range(6)]
outcome = cls(rows=rows).scan(None)
assert outcome.scanned_count == 6
assert len(outcome.drafts) == 1
draft = outcome.drafts[0]
assert draft.score > 0
assert "退款" in draft.rationale # rationale_template 生效
assert "keys" in draft.subjects
def test_config_scenario_no_draft_when_clean():
load_yaml_scenarios()
cls = get_scenario("R10")
rows = [
{"refund_amount": 100000, "customer": "A"},
{"refund_amount": 2_000_000, "customer": "B"},
]
outcome = cls(rows=rows).scan(None)
assert outcome.drafts == []