feat(#39): 超参包 JSON Schema 校验器(PRD 5.3 模型框架配置化)

新增 core/model-framework/hyperparam.py:超参包(Hyperparam Pack)结构化
校验器,零外部依赖(不依赖 jsonschema),对齐 PRD 5.3「超参包驱动」与 EPIC #5。

校验维度(10 类):
- 顶层结构:必填字段 model_id/template/algorithm/features/target;
- algorithm:已知算法集合校验(xgboost/lightgbm/dnn/lstm/gnn/
  isolation_forest/zscore/linear/ridge),未知项报错并列出已知项
  (对齐 PRD「新增结构走 Recipe 插件注册」);
- features:非空列表、name 唯一且合法、spec 非空(FeatureSpec 文本
  存在性校验,语法由 #35 引擎解释);
- objective/hyperparams/train_window/alarm_threshold/drift_check 可选
  字段的类型、取值与格式校验(train_window 形如 180d/4w;drift limit
  在 (0,1];alarm type 含对应阈值键)。

设计:
- validate_pack 返回 ValidationReport(逐条问题,不抛异常),便于配置台
  聚合展示;load_pack 校验失败抛 ValueError 供训练/推理流水线 fail-fast。
- validate_pack_file 复用结构校验,文件/JSON 解析错误也记入报告。

测试:tests/test_hyperparam.py 25 用例全绿(合法包/必填缺失/未知算法/
特征重复与缺 spec/目标函数/train_window 格式/alarm/drift/文件加载与
JSON 解析错误);python -m unittest discover -s tests -v → 25 passed。

close #39
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# -*- coding: utf-8 -*-
"""iAOP-Core · AI 模型框架(AI Model Framework)—— 配置驱动的可模板化模型内核。
对应 PRD 5.3「③ AI 模型框架」与 EPIC #5(平台化改造 RISK 项):
固定主干网络 + 可配置超参;Model Recipe 插件注册;FeatureSpec 声明式特征;
所有可变量外置为 **JSON 超参包**,同一框架切换模板仅改此包(零改码)。
模块组成(按 EPIC #5 拆分的 ≤0.5d 子任务逐步落地):
- hyperparam 超参包 JSON Schema 校验器(Issue #39):加载 + 校验超参包,
返回逐条校验报告,供配置台与训练/推理流水线复用。
- (后续)recipe Model Recipe 插件接口与样例协议(Issue #34)
- (后续)feature FeatureSpec 声明式特征定义引擎(Issue #35)
- (后续)registry 模型模板注册 / 加载 / 版本机制(Issue #41)
超参包 JSON 结构见 PRD 5.3「超参包 JSON 完整示例」与 ``config/`` 下样例。
测试:`python -m unittest discover -s tests -v`(在 core/model-framework 目录下执行)。
"""
from __future__ import annotations
from .hyperparam import (
HyperparamPack,
ValidationIssue,
ValidationReport,
load_pack,
validate_pack,
validate_pack_file,
)
__all__ = [
"HyperparamPack",
"ValidationIssue",
"ValidationReport",
"load_pack",
"validate_pack",
"validate_pack_file",
]
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{
"model_id": "quality_predict_ti",
"template": "iAOP-Template-Ti",
"algorithm": "xgboost",
"features": [
{"name": "EMA_CLF_TEMP_5m", "spec": "EMA(CLF-01.TEMP, 5m)"},
{"name": "RollingStd_CL2_10", "spec": "RollingStd(CLF-01.CL2, 10)"},
{"name": "ROC_FURNACE_PRESS", "spec": "RateOfChange(CLF-01.PRES)"}
],
"target": "Ti_purity",
"objective": "reg:squarederror",
"hyperparams": {"max_depth": 6, "eta": 0.1, "n_estimators": 300},
"train_window": "180d",
"alarm_threshold": {"type": "zscore", "k": 3.0},
"drift_check": {"method": "psi", "limit": 0.2}
}
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# -*- coding: utf-8 -*-
"""超参包(Hyperparam Pack)JSON Schema 校验器。
对应 issue #39(父 EPIC #5「③ AI 模型框架 配置化重构」)与 PRD 5.3
「超参包驱动」:所有可变量(输入特征清单、算法选型、超参、训练窗口、告警阈值、
目标函数)外置为 JSON 超参包,同一框架切换模板仅改此包。
本模块对超参包做 **结构化校验**(不依赖 jsonschema 第三方库,零外部依赖,
便于边缘 / 离线环境运行),返回逐条问题的校验报告,便于配置台一次性展示全部问题、
也便于训练/推理流水线在加载包时 fail-fast。
校验维度(对齐 PRD 5.3 超参包示例与 5.3「配置点」):
1. 顶层结构:必填字段 model_id / template / algorithm / features / target;
2. model_id / template:非空字符串;
3. algorithm:必须在合法算法集合内(xgboost / lightgbm / dnn / lstm / gnn /
isolation_forest / zscore / linear / ridge);未知算法报错并提示已知项
(对齐 PRD「新增结构走插件注册」——校验期即暴露非法选型);
4. features:非空列表;每项含 name(非空、包内唯一)与 spec(非空字符串,
FeatureSpec 文本,由 issue #35 引擎解释,此处只做存在性校验);
5. target:非空字符串;
6. objective(可选):若填写必须为已知目标函数(reg:squarederror /
binary:logistic / multi:softmax / regression / classification 等);
7. hyperparams(可选):若提供必须为对象(dict),且不含空键;
8. train_window(可选):若填写必须形如 ``<正整数><单位>``(单位 d/w/h/m),
如 ``180d`` / ``4w``;
9. alarm_threshold(可选):若提供必须为对象,且含 ``type``
(zscore / quantile / absolute)与对应阈值键;
10. drift_check(可选):若提供必须为对象,含 ``method``(psi / ks / chi2)
与 ``limit``(0~1 之间)。
注:返回报告而非抛异常,便于配置台聚合展示;``load_pack`` 在校验失败时抛
``ValueError`` 供流水线 fail-fast。
"""
from __future__ import annotations
import json
import os
import re
from dataclasses import dataclass, field
from typing import Any, Dict, List, Optional, Tuple
# ---------------------------------------------------------------------------
# 合法取值集合(对齐 PRD 5.3「四类模型模板」+ 默认主干网络 + Recipe 插件扩展点)
# ---------------------------------------------------------------------------
#: 已注册算法(默认主干 + Recipe 可选结构)。新增结构应走插件注册(issue #34/#41),
#: 此处枚举的是内核自带项;校验期遇到未知 algorithm 会报错并列出已知项,避免
#: 静默落到错误分支。
KNOWN_ALGORITHMS: Tuple[str, ...] = (
# 监督回归 / 分类(质量预测)
"xgboost",
"lightgbm",
"linear",
"ridge",
# 神经网络主干(默认 DNN;Recipe 可选 LSTM/GNN)
"dnn",
"lstm",
"gnn",
# 无监督异常 / 杂质预警
"isolation_forest",
"zscore",
)
#: 已知目标函数(xgboost 风格 + 通用风格)。
KNOWN_OBJECTIVES: Tuple[str, ...] = (
"reg:squarederror",
"reg:squaredlogerror",
"binary:logistic",
"multi:softmax",
"multi:softprob",
"regression",
"classification",
)
#: 训练窗口合法时间单位。
_TRAIN_WINDOW_RE = re.compile(r"^\d+(\.\d+)?[dwhm]$")
#: FeatureSpec 仅校验非空文本(具体语法由 issue #35 引擎解释)。
_FEATURE_NAME_RE = re.compile(r"^[A-Za-z_][A-Za-z0-9_]*$")
@dataclass
class ValidationIssue:
"""单条校验问题。"""
code: str # 错误码:missing_field / bad_type / unknown_algorithm / ...
path: str # JSON 路径,如 ``features[1].name`` / ``algorithm``
message: str # 人类可读描述
@dataclass
class ValidationReport:
"""校验报告。"""
issues: List[ValidationIssue] = field(default_factory=list)
@property
def ok(self) -> bool:
return not self.issues
def summary(self) -> str:
if self.ok:
return "超参包校验通过"
by_code: Dict[str, int] = {}
for it in self.issues:
by_code[it.code] = by_code.get(it.code, 0) + 1
parts = [f"{code}×{n}" for code, n in sorted(by_code.items())]
return f"超参包校验未通过({len(self.issues)} 个问题:" + ",".join(parts) + ")"
@dataclass
class HyperparamPack:
"""解析后的超参包(校验通过的视图)。
字段对齐 PRD 5.3 超参包示例;可选字段缺失时为 ``None``。
"""
model_id: str
template: str
algorithm: str
features: List[Dict[str, str]]
target: str
objective: Optional[str] = None
hyperparams: Optional[Dict[str, Any]] = None
train_window: Optional[str] = None
alarm_threshold: Optional[Dict[str, Any]] = None
drift_check: Optional[Dict[str, Any]] = None
raw: Dict[str, Any] = field(default_factory=dict)
@property
def feature_names(self) -> List[str]:
return [f["name"] for f in self.features]
# ---------------------------------------------------------------------------
# 校验主逻辑
# ---------------------------------------------------------------------------
def validate_pack(pack: Dict[str, Any]) -> ValidationReport:
"""校验一个已解析为 dict 的超参包,返回报告(不抛异常)。"""
report = ValidationReport()
def add(code: str, path: str, message: str) -> None:
report.issues.append(ValidationIssue(code, path, message))
# 0. 顶层必须是对象
if not isinstance(pack, dict):
add("bad_type", "$", f"超参包根节点必须为 JSON 对象,实际为 {type(pack).__name__}")
return report
# 1. 必填字段
required: Tuple[str, ...] = ("model_id", "template", "algorithm", "features", "target")
for key in required:
if key not in pack:
add("missing_field", key, f"缺少必填字段:{key}")
# 2. 标量字段类型与取值
model_id = pack.get("model_id")
if "model_id" in pack:
if not isinstance(model_id, str) or not model_id.strip():
add("bad_type", "model_id", "model_id 必须为非空字符串")
elif not _FEATURE_NAME_RE.match(model_id):
add("bad_format", "model_id", "model_id 含非法字符(仅字母/数字/下划线,首字符非数字)")
template = pack.get("template")
if "template" in pack and (not isinstance(template, str) or not template.strip()):
add("bad_type", "template", "template 必须为非空字符串")
algorithm = pack.get("algorithm")
if "algorithm" in pack:
if not isinstance(algorithm, str) or not algorithm.strip():
add("bad_type", "algorithm", "algorithm 必须为非空字符串")
elif algorithm not in KNOWN_ALGORITHMS:
known = "、".join(KNOWN_ALGORITHMS)
add(
"unknown_algorithm",
"algorithm",
f"未知算法 '{algorithm}';已知项:{known}(新增结构请走 Model Recipe 插件注册)",
)
target = pack.get("target")
if "target" in pack and (not isinstance(target, str) or not target.strip()):
add("bad_type", "target", "target 必须为非空字符串")
# 3. objective(可选)
objective = pack.get("objective")
if objective is not None:
if not isinstance(objective, str) or not objective.strip():
add("bad_type", "objective", "objective 若填写必须为非空字符串")
elif objective not in KNOWN_OBJECTIVES:
known = "、".join(KNOWN_OBJECTIVES)
add("unknown_objective", "objective", f"未知目标函数 '{objective}';已知项:{known}")
# 4. features(必填,非空列表)
features = pack.get("features")
if features is None:
# missing_field 已在步骤 1 记录
pass
elif not isinstance(features, list):
add("bad_type", "features", f"features 必须为数组,实际为 {type(features).__name__}")
elif len(features) == 0:
add("empty_features", "features", "features 不能为空(模型至少需要一个输入特征)")
else:
seen_names: Dict[str, int] = {}
for i, feat in enumerate(features):
fpath = f"features[{i}]"
if not isinstance(feat, dict):
add("bad_type", fpath, f"特征项必须为对象,实际为 {type(feat).__name__}")
continue
name = feat.get("name")
spec = feat.get("spec")
if not isinstance(name, str) or not name.strip():
add("missing_field", f"{fpath}.name", "特征缺少 name 或为空")
else:
if not _FEATURE_NAME_RE.match(name):
add("bad_format", f"{fpath}.name", f"特征名 '{name}' 含非法字符")
if name in seen_names:
add(
"dup_feature",
f"{fpath}.name",
f"特征名 '{name}' 重复(首次出现在 features[{seen_names[name]}])",
)
else:
seen_names[name] = i
if not isinstance(spec, str) or not spec.strip():
add("missing_field", f"{fpath}.spec", f"特征 '{name}' 缺少 spec(FeatureSpec 声明)或为空")
# 5. hyperparams(可选,对象)
hyperparams = pack.get("hyperparams")
if hyperparams is not None:
if not isinstance(hyperparams, dict):
add("bad_type", "hyperparams", f"hyperparams 必须为对象,实际为 {type(hyperparams).__name__}")
else:
for k, v in hyperparams.items():
if not isinstance(k, str) or not k.strip():
add("bad_format", "hyperparams", "hyperparams 含空键")
# 6. train_window(可选,<数><单位>)
train_window = pack.get("train_window")
if train_window is not None:
if not isinstance(train_window, str) or not _TRAIN_WINDOW_RE.match(train_window):
add(
"bad_format",
"train_window",
"train_window 必须形如 '<正数><单位>'(单位 d/w/h/m),如 '180d'、'4w'",
)
# 7. alarm_threshold(可选,对象,含 type)
alarm = pack.get("alarm_threshold")
if alarm is not None:
if not isinstance(alarm, dict):
add("bad_type", "alarm_threshold", f"alarm_threshold 必须为对象,实际为 {type(alarm).__name__}")
else:
atype = alarm.get("type")
known_alarm_types = ("zscore", "quantile", "absolute")
if not isinstance(atype, str) or atype not in known_alarm_types:
add(
"unknown_alarm_type",
"alarm_threshold.type",
f"alarm_threshold.type 必须为 {known_alarm_types} 之一",
)
if atype == "zscore" and "k" not in alarm:
add("missing_field", "alarm_threshold.k", "zscore 阈值缺少 k")
if atype == "quantile" and "q" not in alarm:
add("missing_field", "alarm_threshold.q", "quantile 阈值缺少 q")
if atype == "absolute" and "value" not in alarm:
add("missing_field", "alarm_threshold.value", "absolute 阈值缺少 value")
# 8. drift_check(可选,对象,method + limit)
drift = pack.get("drift_check")
if drift is not None:
if not isinstance(drift, dict):
add("bad_type", "drift_check", f"drift_check 必须为对象,实际为 {type(drift).__name__}")
else:
method = drift.get("method")
known_methods = ("psi", "ks", "chi2")
if not isinstance(method, str) or method not in known_methods:
add(
"unknown_drift_method",
"drift_check.method",
f"drift_check.method 必须为 {known_methods} 之一",
)
limit = drift.get("limit")
if limit is None:
add("missing_field", "drift_check.limit", "drift_check 缺少 limit")
elif not isinstance(limit, (int, float)) or isinstance(limit, bool):
add("bad_type", "drift_check.limit", "drift_check.limit 必须为数值")
elif not (0 < limit <= 1):
add("bad_range", "drift_check.limit", "drift_check.limit 必须在 (0, 1] 范围内")
return report
def load_pack(pack: Dict[str, Any]) -> HyperparamPack:
"""校验并把 dict 装配为 :class:`HyperparamPack`;校验失败抛 ``ValueError``。
供训练 / 推理流水线在加载超参包时 fail-fast 使用。
"""
report = validate_pack(pack)
if not report.ok:
raise ValueError(report.summary())
return HyperparamPack(
model_id=pack["model_id"],
template=pack["template"],
algorithm=pack["algorithm"],
features=list(pack["features"]),
target=pack["target"],
objective=pack.get("objective"),
hyperparams=pack.get("hyperparams"),
train_window=pack.get("train_window"),
alarm_threshold=pack.get("alarm_threshold"),
drift_check=pack.get("drift_check"),
raw=dict(pack),
)
def validate_pack_file(path: str) -> ValidationReport:
"""读取 JSON 文件并校验;文件 / JSON 解析错误也记入报告(不抛异常)。"""
report = ValidationReport()
def add(code: str, msg: str) -> None:
report.issues.append(ValidationIssue(code, "$", msg))
if not os.path.exists(path):
add("file_not_found", f"超参包文件不存在:{path}")
return report
try:
with open(path, "r", encoding="utf-8") as fh:
text = fh.read()
except OSError as exc:
add("file_read_error", f"读取超参包失败:{exc}")
return report
try:
pack = json.loads(text)
except json.JSONDecodeError as exc:
add("json_parse_error", f"超参包不是合法 JSON:{exc}")
return report
inner = validate_pack(pack)
report.issues.extend(inner.issues)
return report
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# -*- coding: utf-8 -*-
"""测试引导:把 `core/model-framework` 以包名 `model_framework` 挂载到 sys.modules。
目录名 `model-framework` 含连字符,无法直接以包名 import;挂载后模块内相对导入
(`from .hyperparam import ...`)在 unittest 发现机制下可正常解析。
"""
import os
import sys
import types
MF_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, MF_DIR)
if "model_framework" not in sys.modules:
pkg = types.ModuleType("model_framework")
pkg.__path__ = [MF_DIR]
sys.modules["model_framework"] = pkg
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# -*- coding: utf-8 -*-
"""超参包 JSON Schema 校验器测试(issue #39)。
覆盖:合法包通过 / 必填缺失 / 未知算法 / 特征重复与缺 spec / 目标函数 /
train_window 格式 / alarm_threshold / drift_check / 文件加载与 JSON 解析错误。
"""
import os
import tempfile
import unittest
import _bootstrap # noqa: F401 挂载包名
from model_framework.hyperparam import (
HyperparamPack,
load_pack,
validate_pack,
validate_pack_file,
)
def _good_pack():
"""PRD 5.3 示例的合法超参包。"""
return {
"model_id": "quality_predict_ti",
"template": "iAOP-Template-Ti",
"algorithm": "xgboost",
"features": [
{"name": "EMA_CLF_TEMP_5m", "spec": "EMA(CLF-01.TEMP, 5m)"},
{"name": "RollingStd_CL2_10", "spec": "RollingStd(CLF-01.CL2, 10)"},
],
"target": "Ti_purity",
"objective": "reg:squarederror",
"hyperparams": {"max_depth": 6, "eta": 0.1, "n_estimators": 300},
"train_window": "180d",
"alarm_threshold": {"type": "zscore", "k": 3.0},
"drift_check": {"method": "psi", "limit": 0.2},
}
class ValidatePackTest(unittest.TestCase):
def test_good_pack_passes(self):
report = validate_pack(_good_pack())
self.assertTrue(report.ok, report.summary())
self.assertEqual(report.issues, [])
def test_minimal_pack_passes(self):
report = validate_pack(
{
"model_id": "anomaly_resin",
"template": "iAOP-Template-Resin",
"algorithm": "isolation_forest",
"features": [{"name": "F1", "spec": "RateOfChange(炉压)"}],
"target": "anomaly_score",
}
)
self.assertTrue(report.ok, report.summary())
def test_missing_required_field(self):
pack = _good_pack()
del pack["algorithm"]
report = validate_pack(pack)
self.assertFalse(report.ok)
codes = [i.code for i in report.issues]
self.assertIn("missing_field", codes)
self.assertTrue(any(i.path == "algorithm" for i in report.issues))
def test_missing_all_required(self):
report = validate_pack({})
self.assertFalse(report.ok)
codes = [i.code for i in report.issues]
# 5 个必填字段全部缺失
self.assertEqual(codes.count("missing_field"), 5)
def test_unknown_algorithm_lists_known(self):
pack = _good_pack()
pack["algorithm"] = "magic_boost"
report = validate_pack(pack)
self.assertFalse(report.ok)
issue = next(i for i in report.issues if i.code == "unknown_algorithm")
self.assertIn("xgboost", issue.message)
self.assertIn("magic_boost", issue.message)
def test_empty_features_rejected(self):
pack = _good_pack()
pack["features"] = []
report = validate_pack(pack)
codes = [i.code for i in report.issues]
self.assertIn("empty_features", codes)
def test_duplicate_feature_name(self):
pack = _good_pack()
pack["features"] = [
{"name": "F1", "spec": "EMA(A, 5m)"},
{"name": "F1", "spec": "EMA(B, 5m)"},
]
report = validate_pack(pack)
codes = [i.code for i in report.issues]
self.assertIn("dup_feature", codes)
def test_feature_missing_spec(self):
pack = _good_pack()
pack["features"] = [{"name": "F1", "spec": ""}]
report = validate_pack(pack)
codes = [i.code for i in report.issues]
self.assertIn("missing_field", codes)
def test_feature_bad_name_format(self):
pack = _good_pack()
pack["features"] = [{"name": "1bad", "spec": "EMA(A,5m)"}]
report = validate_pack(pack)
codes = [i.code for i in report.issues]
self.assertIn("bad_format", codes)
def test_unknown_objective(self):
pack = _good_pack()
pack["objective"] = "reg:magic"
report = validate_pack(pack)
self.assertTrue(any(i.code == "unknown_objective" for i in report.issues))
def test_bad_train_window_format(self):
for bad in ["180", "180days", "abc", "", "1y"]:
pack = _good_pack()
pack["train_window"] = bad
report = validate_pack(pack)
self.assertTrue(
any(i.code == "bad_format" and i.path == "train_window" for i in report.issues),
f"应拒绝非法 train_window: {bad!r}",
)
def test_good_train_window_units(self):
for good in ["180d", "4w", "72h", "30m"]:
pack = _good_pack()
pack["train_window"] = good
report = validate_pack(pack)
self.assertTrue(report.ok, f"应接受合法 train_window: {good!r} -> {report.summary()}")
def test_alarm_threshold_zscore_missing_k(self):
pack = _good_pack()
pack["alarm_threshold"] = {"type": "zscore"}
report = validate_pack(pack)
self.assertTrue(any(i.code == "missing_field" and i.path == "alarm_threshold.k" for i in report.issues))
def test_alarm_threshold_unknown_type(self):
pack = _good_pack()
pack["alarm_threshold"] = {"type": "voodoo"}
report = validate_pack(pack)
self.assertTrue(any(i.code == "unknown_alarm_type" for i in report.issues))
def test_drift_check_limit_range(self):
for bad_limit in [0, 1.5, -0.1]:
pack = _good_pack()
pack["drift_check"] = {"method": "psi", "limit": bad_limit}
report = validate_pack(pack)
self.assertTrue(
any(i.code == "bad_range" for i in report.issues),
f"应拒绝非法 drift_check.limit: {bad_limit}",
)
def test_drift_check_unknown_method(self):
pack = _good_pack()
pack["drift_check"] = {"method": "magic", "limit": 0.2}
report = validate_pack(pack)
self.assertTrue(any(i.code == "unknown_drift_method" for i in report.issues))
def test_root_not_object(self):
report = validate_pack([1, 2, 3]) # type: ignore[arg-type]
self.assertFalse(report.ok)
self.assertEqual(report.issues[0].code, "bad_type")
def test_report_summary_ok(self):
self.assertEqual(validate_pack(_good_pack()).summary(), "超参包校验通过")
def test_report_summary_aggregates(self):
pack = _good_pack()
del pack["algorithm"]
del pack["target"]
summary = validate_pack(pack).summary()
self.assertIn("2 个问题", summary)
self.assertIn("missing_field", summary)
class LoadPackTest(unittest.TestCase):
def test_load_good_returns_pack(self):
pack = load_pack(_good_pack())
self.assertIsInstance(pack, HyperparamPack)
self.assertEqual(pack.model_id, "quality_predict_ti")
self.assertEqual(pack.algorithm, "xgboost")
self.assertEqual(pack.feature_names, ["EMA_CLF_TEMP_5m", "RollingStd_CL2_10"])
self.assertEqual(pack.hyperparams["max_depth"], 6)
def test_load_bad_raises(self):
pack = _good_pack()
del pack["features"]
with self.assertRaises(ValueError) as cm:
load_pack(pack)
self.assertIn("超参包校验未通过", str(cm.exception))
class ValidatePackFileTest(unittest.TestCase):
def setUp(self):
self._tmp = tempfile.mkdtemp()
self.path = os.path.join(self._tmp, "pack.json")
def _write(self, text):
with open(self.path, "w", encoding="utf-8") as fh:
fh.write(text)
return self.path
def test_valid_file_passes(self):
import json
self._write(json.dumps(_good_pack()))
report = validate_pack_file(self.path)
self.assertTrue(report.ok, report.summary())
def test_missing_file(self):
report = validate_pack_file(os.path.join(self._tmp, "nope.json"))
self.assertFalse(report.ok)
self.assertEqual(report.issues[0].code, "file_not_found")
def test_bad_json(self):
self._write("{ not json ")
report = validate_pack_file(self.path)
self.assertFalse(report.ok)
self.assertEqual(report.issues[0].code, "json_parse_error")
def test_file_with_schema_errors(self):
import json
bad = _good_pack()
bad["algorithm"] = "unknown_thing"
self._write(json.dumps(bad))
report = validate_pack_file(self.path)
self.assertFalse(report.ok)
self.assertEqual(report.issues[0].code, "unknown_algorithm")
if __name__ == "__main__":
unittest.main()