test_log_collect_all_commits.py
python
sha256:51ce277f663e01a43eaffbe77509b1de7ac2d4251b55d23306304bcdeb92c90d
feat(pack): delta-encode snapshots in MPackBundle wire format
Sonnet 4.6
minor
⚠ breaking
122 days ago
| 1 | """TDD — log._collect_all_commits must use iter_ancestors, not inline deque BFS. |
| 2 | |
| 3 | LC1 Structural — _collect_all_commits uses iter_ancestors; no inline deque BFS |
| 4 | LC2 Behavioural — collects all commits reachable from start_ids |
| 5 | LC3 Behavioural — truncated flag fires at max_commits cap |
| 6 | """ |
| 7 | from __future__ import annotations |
| 8 | |
| 9 | import datetime |
| 10 | import inspect |
| 11 | import json |
| 12 | import pathlib |
| 13 | |
| 14 | import pytest |
| 15 | |
| 16 | from muse._version import __version__ |
| 17 | from muse.core.object_store import write_object |
| 18 | from muse.core.snapshot import compute_commit_id, compute_snapshot_id |
| 19 | from muse.core.store import CommitRecord, SnapshotRecord, write_commit, write_snapshot |
| 20 | from muse.core.types import blob_id |
| 21 | from muse.core.paths import muse_dir |
| 22 | |
| 23 | |
| 24 | def _repo(tmp_path: pathlib.Path, monkeypatch: pytest.MonkeyPatch) -> pathlib.Path: |
| 25 | dot_muse = muse_dir(tmp_path) |
| 26 | for d in ("commits", "snapshots", "objects", "refs/heads", "remotes"): |
| 27 | (dot_muse / d).mkdir(parents=True, exist_ok=True) |
| 28 | (dot_muse / "HEAD").write_text("ref: refs/heads/main\n") |
| 29 | (dot_muse / "repo.json").write_text( |
| 30 | json.dumps({"repo_id": "test-repo", "schema_version": __version__, "domain": "code"}) |
| 31 | ) |
| 32 | monkeypatch.setenv("MUSE_REPO_ROOT", str(tmp_path)) |
| 33 | monkeypatch.chdir(tmp_path) |
| 34 | return tmp_path |
| 35 | |
| 36 | |
| 37 | def _make_commit( |
| 38 | root: pathlib.Path, |
| 39 | parent_id: str | None = None, |
| 40 | *, |
| 41 | message: str = "test", |
| 42 | ) -> CommitRecord: |
| 43 | oid = blob_id(b"data-" + message.encode()) |
| 44 | write_object(root, oid, b"data-" + message.encode()) |
| 45 | manifest = {"f.py": oid} |
| 46 | snap_id = compute_snapshot_id(manifest) |
| 47 | write_snapshot(root, SnapshotRecord(snapshot_id=snap_id, manifest=manifest)) |
| 48 | ts = datetime.datetime(2026, 1, 1, tzinfo=datetime.timezone.utc) |
| 49 | cid = compute_commit_id( |
| 50 | parent_ids=[parent_id] if parent_id else [], |
| 51 | snapshot_id=snap_id, |
| 52 | message=message, |
| 53 | committed_at_iso=ts.isoformat(), |
| 54 | ) |
| 55 | rec = CommitRecord( |
| 56 | repo_id="test-repo", |
| 57 | commit_id=cid, |
| 58 | branch="main", |
| 59 | snapshot_id=snap_id, |
| 60 | message=message, |
| 61 | committed_at=ts, |
| 62 | parent_commit_id=parent_id, |
| 63 | ) |
| 64 | write_commit(root, rec) |
| 65 | return rec |
| 66 | |
| 67 | |
| 68 | # --------------------------------------------------------------------------- |
| 69 | # LC1 Structural |
| 70 | # --------------------------------------------------------------------------- |
| 71 | |
| 72 | def test_lc1_collect_all_commits_uses_iter_ancestors() -> None: |
| 73 | """_collect_all_commits must delegate to iter_ancestors; no inline deque.""" |
| 74 | from muse.cli.commands import log as log_mod |
| 75 | |
| 76 | src = inspect.getsource(log_mod._collect_all_commits) |
| 77 | |
| 78 | assert "iter_ancestors" in src, ( |
| 79 | "_collect_all_commits must delegate to iter_ancestors. " |
| 80 | "Replace the inline deque BFS." |
| 81 | ) |
| 82 | assert "deque" not in src, ( |
| 83 | "_collect_all_commits still has an inline deque. Replace with iter_ancestors." |
| 84 | ) |
| 85 | |
| 86 | |
| 87 | # --------------------------------------------------------------------------- |
| 88 | # LC2 Behavioural — collects all reachable commits |
| 89 | # --------------------------------------------------------------------------- |
| 90 | |
| 91 | def test_lc2_collect_all_commits_returns_all( |
| 92 | tmp_path: pathlib.Path, |
| 93 | monkeypatch: pytest.MonkeyPatch, |
| 94 | ) -> None: |
| 95 | """Returns a CommitIndex containing every reachable commit.""" |
| 96 | from muse.cli.commands.log import _collect_all_commits # type: ignore[attr-defined] |
| 97 | |
| 98 | root = _repo(tmp_path, monkeypatch) |
| 99 | c1 = _make_commit(root, message="c1") |
| 100 | c2 = _make_commit(root, c1.commit_id, message="c2") |
| 101 | c3 = _make_commit(root, c2.commit_id, message="c3") |
| 102 | |
| 103 | index, truncated = _collect_all_commits(root, [c3.commit_id]) |
| 104 | |
| 105 | assert truncated is False |
| 106 | assert c1.commit_id in index |
| 107 | assert c2.commit_id in index |
| 108 | assert c3.commit_id in index |
| 109 | |
| 110 | |
| 111 | # --------------------------------------------------------------------------- |
| 112 | # LC3 Behavioural — truncated flag |
| 113 | # --------------------------------------------------------------------------- |
| 114 | |
| 115 | def test_lc3_collect_all_commits_truncated_flag( |
| 116 | tmp_path: pathlib.Path, |
| 117 | monkeypatch: pytest.MonkeyPatch, |
| 118 | ) -> None: |
| 119 | """truncated=True when max_commits is reached before exhausting the DAG.""" |
| 120 | from muse.cli.commands.log import _collect_all_commits # type: ignore[attr-defined] |
| 121 | |
| 122 | root = _repo(tmp_path, monkeypatch) |
| 123 | parent_id: str | None = None |
| 124 | for i in range(5): |
| 125 | c = _make_commit(root, parent_id, message=f"c{i}") |
| 126 | parent_id = c.commit_id |
| 127 | |
| 128 | index, truncated = _collect_all_commits(root, [parent_id], max_commits=2) # type: ignore[arg-type] |
| 129 | |
| 130 | assert truncated is True |
| 131 | assert len(index) == 2 |
File History
1 commit
sha256:51ce277f663e01a43eaffbe77509b1de7ac2d4251b55d23306304bcdeb92c90d
feat(pack): delta-encode snapshots in MPackBundle wire format
Sonnet 4.6
minor
⚠
122 days ago