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60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
"""mypy 错误数只降不增 ratchet 的解析与对比逻辑测试。"""
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from scripts.architecture.mypy_ratchet import compare_counts, parse_errors
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MYPY_SAMPLE = """
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app/application/a.py:12: error: Function is missing a type annotation [no-untyped-def]
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app/application/a.py:15: error: Function is missing a type annotation [no-untyped-def]
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def run(self):
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^
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app/application/a.py:20: error: Missing type parameters for generic type "dict" [type-arg]
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Found 3 errors in 1 file (checked 500 source files)
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"""
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def test_parse_errors_aggregates_per_file_and_code() -> None:
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"""错误行按文件与错误码聚合，源码上下文与摘要行不计入。"""
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report = parse_errors(MYPY_SAMPLE)
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assert report == {
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"app/application/a.py": {
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"no-untyped-def": 2,
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"type-arg": 1,
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}
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}
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def test_parse_errors_buckets_missing_code_as_unknown() -> None:
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"""缺少错误码的错误行归入 unknown 桶，不丢失计数。"""
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report = parse_errors("app/b.py:3: error: Something went wrong\n")
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assert report == {"app/b.py": {"unknown": 1}}
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def test_ratchet_allows_removal_and_reduction() -> None:
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"""文件删除或错误数减少必须允许通过。"""
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baseline = {"app/a.py": {"arg-type": 5, "misc": 2}}
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current = {"app/a.py": {"arg-type": 3}}
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assert compare_counts(baseline, current) == []
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def test_ratchet_rejects_growth_and_new_errors() -> None:
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"""既有错误码增长和新增文件/错误码必须同时给出精确诊断。"""
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baseline = {
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"app/a.py": {"arg-type": 5},
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"app/c.py": {"misc": 1},
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}
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current = {
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"app/a.py": {"arg-type": 6, "type-arg": 2},
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"app/b.py": {"no-untyped-def": 10},
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"app/c.py": {},
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}
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problems = compare_counts(baseline, current)
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assert any("app/a.py" in p and "arg-type" in p and "既有错误增长" in p for p in problems)
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assert any("app/a.py" in p and "type-arg" in p and "新增类型错误" in p for p in problems)
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assert any("app/b.py" in p and "新增类型错误" in p for p in problems)
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