41 lines
1.5 KiB
Python
41 lines
1.5 KiB
Python
"""Story-to-test traceability for Phase A (Epic E01).
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Every story US01-01..US01-07 must map to test files that exist, and every Phase A
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test file must be claimed by a story — so a new test can't go unexercised and a
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story can't quietly lose its coverage. Whether those tests *pass* is proven by
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running the suite; this guards the mapping's completeness.
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"""
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import json
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from pathlib import Path
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REPO = Path(__file__).resolve().parents[2]
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MAP = json.loads((REPO / "tests" / "phase_a_traceability.json").read_text())["stories"]
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EXPECTED_STORIES = {f"US01-0{n}" for n in range(1, 8)}
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def test_all_phase_a_stories_are_mapped():
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assert set(MAP) == EXPECTED_STORIES
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def test_every_mapped_test_file_exists_and_is_nonempty():
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for story, files in MAP.items():
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assert files, f"{story} maps to no tests"
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for rel in files:
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path = REPO / rel
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assert path.is_file(), f"{story}: missing {rel}"
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assert path.stat().st_size > 0, f"{story}: empty {rel}"
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assert "def test_" in path.read_text(), f"{story}: no tests in {rel}"
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def test_no_unexercised_phase_a_test_files():
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"""Every test_*.py under tests/ is claimed by a story (no orphan coverage)."""
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mapped = {rel for files in MAP.values() for rel in files}
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on_disk = {
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str(p.relative_to(REPO))
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for p in (REPO / "tests").rglob("test_*.py")
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if "__pycache__" not in p.parts
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}
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unmapped = on_disk - mapped
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assert not unmapped, f"test files not tied to any story: {sorted(unmapped)}"
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