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47 lines
2.1 KiB
Python
47 lines
2.1 KiB
Python
"""Mutation fixtures: stage-1 same-line patterns must miss the aliased sink (requirement 8.2)."""
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from pathlib import Path
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from openultrasast.benchmark import BenchmarkRun, evaluate_benchmark, load_benchmark_manifest, resolve_benchmark_source
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from openultrasast.findings import StaticFinding, quick_scan_findings
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from openultrasast.gate import LANGUAGE_MANIFESTS
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from openultrasast.preprocess import preprocess_repository
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from openultrasast.rank import rank_targets
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MANIFEST = Path("benchmarks/manifests/mutation-python.toml")
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def _quick_scan(target: Path) -> list[StaticFinding]:
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_, targets = preprocess_repository(target)
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return quick_scan_findings(target, targets, rank_targets(targets))
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def test_stage1_misses_aliased_os_system_mutation() -> None:
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manifest = load_benchmark_manifest(MANIFEST)
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target = resolve_benchmark_source(MANIFEST, manifest)
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planted = [item for item in manifest.expected if item.rule_id is None]
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assert planted, "mutation manifest must document a stage-1 miss without rule_id"
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expected = planted[0]
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assert expected.sink == "run_cmd"
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assert expected.line is not None
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source = (target / expected.path).read_text()
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lines = source.splitlines()
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assert "os.system" in source
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assert "os.system(" not in lines[expected.line - 1]
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assert "run_cmd(" in lines[expected.line - 1]
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findings = _quick_scan(target)
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on_line = [finding for finding in findings if finding.path == expected.path and finding.line == expected.line]
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assert on_line == [], f"stage-1 hit the mutation on {expected.path}:{expected.line}: {on_line}"
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run = BenchmarkRun(benchmark_run_id="mutation", root=Path("/tmp/mutation"), manifest=manifest)
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result = evaluate_benchmark(run=run, mode="quick", findings=findings, scan_id=None, scan_run_dir=None)
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missed = {(miss.path, miss.cwe, miss.rule_id) for miss in result.misses}
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assert (expected.path, expected.cwe, None) in missed
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def test_mutation_fixture_is_outside_stage1_gate_corpus() -> None:
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listed = {name for names in LANGUAGE_MANIFESTS.values() for name in names}
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assert "mutation-python" not in listed
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