mirror of
https://github.com/jxxghp/MoviePilot.git
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271 lines
12 KiB
Python
271 lines
12 KiB
Python
"""
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结构复杂度门禁、行数观察与基线写保护的回归测试。
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"""
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import json
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import subprocess
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import sys
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from pathlib import Path
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from textwrap import indent
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import pytest
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from scripts.architecture import complexity
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def _write_source(root: Path, relative: str, source: str) -> Path:
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"""
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写入隔离源码树，避免对真实宿主文件做变异。
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"""
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path = root / relative
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path.parent.mkdir(parents=True, exist_ok=True)
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path.write_text(source, encoding="utf-8")
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return path
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def _branches(count: int, name: str = "dispatch") -> str:
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"""
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构造分支数可控的函数，以真实 Ruff 验证阈值边界。
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"""
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return f"def {name}(value):\n" + "".join(
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f" if value == {index}:\n return {index}\n" for index in range(count)
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)
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def _nested(depth: int) -> str:
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"""
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构造独立于物理行数的深层条件控制流。
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"""
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return "def nested(value):\n" + "".join(
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f"{' ' * level}if value:\n" for level in range(1, depth + 1)
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) + f"{' ' * (depth + 1)}return value\n"
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def test_structural_metrics_cover_all_host_packages_and_ignore_only_plugins(tmp_path: Path) -> None:
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"""
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原来未受治的宿主目录同样拦截短而多分支的函数；插件副本除外。
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"""
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packages = (
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"adapters", "agent", "api/endpoints", "application", "chain", "db", "domain",
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"foundation", "modules", "runtime", "scheduler", "startup", "workflow", "sdk",
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"runtime/compat", "testing",
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)
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for package in packages:
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_write_source(tmp_path, f"app/{package}/sample.py", _branches(15, "__private"))
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_write_source(tmp_path, "app/plugins/sample/__init__.py", "invalid syntax !")
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metrics = complexity.collect_complexity(tmp_path)
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assert metrics["C901"] == {
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f"app/{package}/sample.py:__private": 16 for package in packages
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}
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assert metrics["PLR1702"] == {}
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def test_complexity_limits_are_inclusive_and_nested_depth_is_independent(tmp_path: Path) -> None:
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"""
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圈复杂度 15、嵌套 5 层允许，跨过任一阈值必须报告。
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"""
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path = _write_source(tmp_path, "app/sample.py", _branches(14) + _nested(5))
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assert complexity.collect_complexity(tmp_path) == {"C901": {}, "PLR1702": {}}
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path.write_text(_branches(15) + _nested(6), encoding="utf-8")
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assert complexity.collect_complexity(tmp_path) == {
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"C901": {"app/sample.py:dispatch": 16},
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"PLR1702": {"app/sample.py:nested": 6},
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}
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def test_formatting_comments_and_docstrings_only_affect_advisory_size(tmp_path: Path) -> None:
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"""
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增加文档、空行或换行不消耗结构预算，但仍可观察源码规模变化。
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"""
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path = _write_source(tmp_path, "app/sample.py", _branches(15))
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before = complexity.collect_complexity(tmp_path)
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formatted = _branches(15).replace("(value):", "(\n value,\n):").replace(
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" if value == 0:",
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' """文档\n' + " 说明\n" * 160 + ' """\n\n # 分支语义未变\n if value == 0:',
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)
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path.write_text("\n\n" + formatted, encoding="utf-8")
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assert complexity.collect_complexity(tmp_path) == before
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assert complexity.collect_source_size(tmp_path)["method"]["app/sample.py:dispatch"] > 150
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path.write_text("def linear():\n" + " value = 1\n" * 1100, encoding="utf-8")
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assert complexity.collect_complexity(tmp_path) == {"C901": {}, "PLR1702": {}}
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assert complexity.collect_source_size(tmp_path)["file"] == {"app/sample.py": 1101}
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def test_nested_owners_and_redefinitions_do_not_share_budgets(tmp_path: Path) -> None:
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"""
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Match、TryStar 内嵌套函数与同名重定义必须保留独立身份。
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"""
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source = (
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"class Runner:\n" + indent(_branches(15, "__hidden"), " ")
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+ "\ndef outer(value):\n match value:\n case 1:\n"
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+ indent(_branches(15, "matched"), " ")
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+ "\ndef guarded():\n try:\n pass\n except* ValueError:\n"
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+ indent(_branches(15, "recovered"), " ")
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+ "\ndef local():\n class Inner:\n"
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+ indent(_branches(15, "method"), " ")
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+ "\nif enabled:\n" + indent(_branches(15, "repeated"), " ")
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+ "else:\n" + indent(_branches(16, "repeated"), " ")
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)
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_write_source(tmp_path, "app/sample.py", source)
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metrics = complexity.collect_complexity(tmp_path)["C901"]
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for owner in ("Runner.__hidden", "outer.matched", "guarded.recovered", "local.Inner.method"):
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assert metrics[f"app/sample.py:{owner}"] == 16
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assert metrics["app/sample.py:repeated#1"] == 16
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assert metrics["app/sample.py:repeated#2"] == 17
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def test_noqa_gitignore_and_local_ruff_config_cannot_hide_metrics(tmp_path: Path) -> None:
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"""
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noqa、忽略文件或局部 Ruff 排除项不能绕过宿主复杂度门禁。
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"""
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_write_source(tmp_path, "app/sample.py", _branches(15).replace(
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"def dispatch(value):", "def dispatch(value): # noqa: C901",
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))
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(tmp_path / ".git").mkdir()
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(tmp_path / ".gitignore").write_text("app/\n", encoding="utf-8")
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(tmp_path / "ruff.toml").write_text('exclude = ["app"]\n', encoding="utf-8")
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assert complexity.collect_complexity(tmp_path)["C901"] == {"app/sample.py:dispatch": 16}
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def test_multiple_deep_blocks_use_the_functions_maximum_depth(tmp_path: Path) -> None:
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"""
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同函数多个深层块取最大深度，嵌套函数的指标归属自己。
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"""
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source = _nested(6) + _nested(7).split("\n", 1)[1]
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source += "\ndef outer():\n" + indent(_nested(8), " ")
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_write_source(tmp_path, "app/sample.py", source)
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assert complexity.collect_complexity(tmp_path)["PLR1702"] == {
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"app/sample.py:nested": 7, "app/sample.py:outer.nested": 8,
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}
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def test_growth_cannot_be_offset_by_reduction_or_renaming() -> None:
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"""
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同文件中删除旧热点不能抵消另一个函数变复杂或搬走后的新热点。
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"""
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baseline = {"C901": {"app/a.py:old": 20, "app/a.py:growing": 18}, "PLR1702": {}}
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current = {"C901": {"app/b.py:moved": 20, "app/a.py:growing": 19}, "PLR1702": {}}
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regressions, stale = complexity.classify_complexity(baseline, current)
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assert len(regressions) == 2
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assert any("growing 18->19" in item for item in regressions)
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assert any("moved 15->20" in item for item in regressions)
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assert len(stale) == 1 and "old" in stale[0]
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@pytest.mark.parametrize("current", [{"C901": {"app/a.py:f": 16}, "PLR1702": {}}, {"C901": {}, "PLR1702": {}}])
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def test_cli_requires_and_writes_lower_watermark(
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tmp_path: Path, monkeypatch: pytest.MonkeyPatch, current: dict,
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) -> None:
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"""
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降低到阈值内或删除热点后必须收紧基线，后续检查才能通过。
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"""
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baseline = tmp_path / "baseline.json"
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baseline.write_text(json.dumps(complexity.baseline_payload({"C901": {"app/a.py:f": 20}, "PLR1702": {}})))
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monkeypatch.setattr(complexity, "collect_complexity", lambda: current)
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monkeypatch.setattr(sys, "argv", ["complexity.py", "--baseline", str(baseline)])
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assert complexity.main() == 1
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monkeypatch.setattr(sys, "argv", [*sys.argv, "--write"])
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assert complexity.main() == 0
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assert complexity.read_baseline(baseline) == current
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monkeypatch.setattr(sys, "argv", sys.argv[:-1])
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assert complexity.main() == 0
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def test_cli_refuses_to_overwrite_growth_and_keeps_diagnostic_report(
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tmp_path: Path, monkeypatch: pytest.MonkeyPatch,
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) -> None:
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"""
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失败时保存审查报告，但 write 绝不能把回退洗入已有基线。
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"""
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baseline, report = tmp_path / "baseline.json", tmp_path / "report.json"
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original = json.dumps(complexity.baseline_payload({"C901": {}, "PLR1702": {}}))
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baseline.write_text(original, encoding="utf-8")
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current = {"C901": {"app/a.py:f": 16}, "PLR1702": {}}
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monkeypatch.setattr(complexity, "collect_complexity", lambda: current)
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monkeypatch.setattr(complexity, "collect_source_size", lambda: {"file": {"app/a.py": 2000}})
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monkeypatch.setattr(sys, "argv", ["complexity.py", "--write", "--baseline", str(baseline), "--report", str(report)])
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assert complexity.main() == 1
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assert baseline.read_text(encoding="utf-8") == original
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assert json.loads(report.read_text(encoding="utf-8"))["metrics"] == current
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monkeypatch.setattr(sys, "argv", ["complexity.py", "--baseline", str(baseline), "--report", str(baseline)])
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assert complexity.main() == 1
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assert baseline.read_text(encoding="utf-8") == original
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def test_cli_missing_baseline_requires_explicit_initialization(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
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"""
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缺失基线不能默认为成功，首次建账必须显式执行 write。
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"""
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baseline = tmp_path / "new.json"
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monkeypatch.setattr(complexity, "collect_complexity", lambda: {"C901": {}, "PLR1702": {}})
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monkeypatch.setattr(sys, "argv", ["complexity.py", "--baseline", str(baseline)])
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assert complexity.main() == 1
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monkeypatch.setattr(sys, "argv", [*sys.argv, "--write"])
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assert complexity.main() == 0
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assert complexity.read_baseline(baseline) == {"C901": {}, "PLR1702": {}}
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@pytest.mark.parametrize("payload", [
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{"api_endpoint": {}, "application_public": {}, "chain_public": {}},
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{"schema_version": 3, "thresholds": {"C901": 20, "PLR1702": 5}, "metrics": {}},
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complexity.baseline_payload({"C901": {"app/a.py:f": True}, "PLR1702": {}}),
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complexity.baseline_payload({"C901": {"app/plugins/a.py:f": 16}, "PLR1702": {}}),
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complexity.baseline_payload({"C901": {"app/a.py:f": 15}, "PLR1702": {}}),
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complexity.baseline_payload({"C901": {}}),
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])
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def test_baseline_rejects_legacy_malformed_or_changed_policy(tmp_path: Path, payload: dict) -> None:
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"""
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格式、范围和阈值异常必须失败，不能静默接受旧口径。
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"""
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path = tmp_path / "baseline.json"
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path.write_text(json.dumps(payload), encoding="utf-8")
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with pytest.raises(ValueError):
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complexity.read_baseline(path)
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@pytest.mark.parametrize(("status", "stdout", "stderr"), [
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(2, "", "tool failure"), (0, "", ""), (0, "{}", ""),
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(1, "[]", ""), (0, '[{"code": "C901"}]', ""), (0, "[]", "warning"),
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])
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def test_ruff_failures_never_become_zero_debt(
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tmp_path: Path, monkeypatch: pytest.MonkeyPatch, status: int, stdout: str, stderr: str,
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) -> None:
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"""
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工具异常、输出丢失和退出状态不一致均必须阻断。
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"""
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result = subprocess.CompletedProcess([], status, stdout, stderr)
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monkeypatch.setattr(complexity.subprocess, "run", lambda *args, **kwargs: result)
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with pytest.raises(ValueError):
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complexity.run_ruff(tmp_path)
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@pytest.mark.parametrize("changes", [
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{"code": "invalid-syntax"}, {"message": "unrecognized metric"},
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{"message": "metric (16 > 10)"}, {"location": {"row": 999}},
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])
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def test_unrecognized_diagnostics_fail_closed(
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tmp_path: Path, monkeypatch: pytest.MonkeyPatch, changes: dict,
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) -> None:
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"""
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Ruff 升级改变输出或无法定位 owner 时不能漏记债务。
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"""
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path = _write_source(tmp_path, "app/sample.py", _branches(15))
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diagnostic = {
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"code": "C901", "message": "metric (16 > 15)",
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"filename": str(path), "location": {"row": 1}, **changes,
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}
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monkeypatch.setattr(complexity, "run_ruff", lambda root: [diagnostic])
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with pytest.raises(ValueError):
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complexity.collect_complexity(tmp_path)
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def test_missing_or_invalid_source_cannot_shrink_baseline(tmp_path: Path) -> None:
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"""
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扫描根消失或源码损坏不能被当成复杂度下降。
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"""
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with pytest.raises(ValueError, match="未找到"):
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complexity.collect_complexity(tmp_path)
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_write_source(tmp_path, "app/sample.py", "invalid syntax !")
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with pytest.raises(SyntaxError):
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complexity.collect_complexity(tmp_path)
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