aaronrene / overseer-kit public
test_print_next_integrity.py python
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sha256:c07f2f34a0db9f43fe866f157d1935322008545ff8940c06c7c921eb219c55ab NXP-b DONE: independent BV-r2 pass + ISR (SD-17) Human minor ⚠ breaking 3 days ago
1 """Data integrity — ``ok next`` is read-only and idempotent (§ONS.12 / §NXP.8)."""
2
3 from __future__ import annotations
4
5 import hashlib
6 from pathlib import Path
7
8 from cli.kit_root import kit_root
9 from tests.support import FIXTURES, git_status_runner, run_cli, write_config
10 from tools.print_next.extract import CURRENT_NEXT_HEADING, set_read_at_clock
11 from tools.governance_hygiene.next_regen import extract_paste_fence_body
12
13 FIXED_READ_AT = "2026-09-04T12:00:00Z"
14
15
16 def _sha(path: Path) -> str:
17 return hashlib.sha256(path.read_bytes()).hexdigest()
18
19
20 def test_twice_identical_no_mutation(tmp_path: Path, capsys) -> None:
21 write_config(tmp_path, "config-git-only.yaml")
22 docs = tmp_path / "docs"
23 docs.mkdir(parents=True, exist_ok=True)
24 handover = docs / "OVERSEER-HANDOVER.md"
25 roadmap = docs / "ROADMAP.md"
26 handover.write_text(
27 (FIXTURES / "print-next-handover.md").read_text(encoding="utf-8"),
28 encoding="utf-8",
29 )
30 roadmap.write_text("# Roadmap\n", encoding="utf-8")
31 lock = tmp_path / ".overseer" / "version.lock"
32 lock.write_text("kit_version: 0.1.0\n", encoding="utf-8")
33
34 before = {
35 "handover": _sha(handover),
36 "roadmap": _sha(roadmap),
37 "lock": _sha(lock),
38 }
39 set_read_at_clock(lambda: FIXED_READ_AT)
40 try:
41 runner = git_status_runner()
42 code1 = run_cli(["next"], cwd=tmp_path, runner=runner, kit=kit_root())
43 out1 = capsys.readouterr().out
44 code2 = run_cli(["next"], cwd=tmp_path, runner=runner, kit=kit_root())
45 out2 = capsys.readouterr().out
46 assert code1 == 0
47 assert code2 == 0
48 assert out1 == out2
49 assert _sha(handover) == before["handover"]
50 assert _sha(roadmap) == before["roadmap"]
51 assert _sha(lock) == before["lock"]
52 finally:
53 set_read_at_clock(None)
54
55
56 def test_fence_body_and_heading_byte_identical_to_pre_nxp(tmp_path: Path, capsys) -> None:
57 """§NXP.8 data-integrity: fence body + CURRENT_NEXT_HEADING unchanged."""
58 write_config(tmp_path, "config-git-only.yaml")
59 docs = tmp_path / "docs"
60 docs.mkdir(parents=True, exist_ok=True)
61 text = (FIXTURES / "print-next-handover.md").read_text(encoding="utf-8")
62 handover = docs / "OVERSEER-HANDOVER.md"
63 handover.write_text(text, encoding="utf-8")
64 (docs / "ROADMAP.md").write_text("# Roadmap\n", encoding="utf-8")
65
66 pre_body = extract_paste_fence_body(text)
67 assert pre_body is not None
68 assert CURRENT_NEXT_HEADING == "## CURRENT NEXT — paste this"
69
70 set_read_at_clock(lambda: FIXED_READ_AT)
71 try:
72 code = run_cli(["next"], cwd=tmp_path, runner=git_status_runner(), kit=kit_root())
73 out = capsys.readouterr().out
74 assert code == 0
75 finally:
76 set_read_at_clock(None)
77
78 # Golden: the pre-NXP nine-step bytes (§ONS.5.4), reconstructed exactly.
79 expected_body = pre_body if pre_body.endswith("\n") else pre_body + "\n"
80 pre_nxp_stdout = f"{CURRENT_NEXT_HEADING}\n\n```text\n{expected_body}```\n"
81
82 # §NXP.3.1 adds exactly two lines (provenance + blank) at index 2 and 3.
83 lines = out.split("\n")
84 assert lines[0] == CURRENT_NEXT_HEADING
85 assert lines[1] == ""
86 assert lines[2].startswith("**Source:** ")
87 assert lines[3] == ""
88
89 # Removing only those two lines must reproduce pre-NXP stdout byte for byte,
90 # which pins both the heading and the fence body — no rstrip, no tolerance.
91 reduced = "\n".join(lines[:2] + lines[4:])
92 assert reduced == pre_nxp_stdout
File History 1 commit
sha256:c07f2f34a0db9f43fe866f157d1935322008545ff8940c06c7c921eb219c55ab NXP-b DONE: independent BV-r2 pass + ISR (SD-17) Human minor ⚠ 3 days ago