test_plumbing_symbolic_ref.py
python
| 1 | """Tests for muse plumbing symbolic-ref.""" |
| 2 | |
| 3 | from __future__ import annotations |
| 4 | |
| 5 | import datetime |
| 6 | import hashlib |
| 7 | import json |
| 8 | import pathlib |
| 9 | |
| 10 | import pytest |
| 11 | from typer.testing import CliRunner |
| 12 | |
| 13 | from muse.cli.app import cli |
| 14 | from muse.core.store import CommitRecord, SnapshotRecord, write_commit, write_snapshot |
| 15 | |
| 16 | runner = CliRunner() |
| 17 | |
| 18 | |
| 19 | def _sha(tag: str) -> str: |
| 20 | return hashlib.sha256(tag.encode()).hexdigest() |
| 21 | |
| 22 | |
| 23 | def _init_repo(path: pathlib.Path, branch: str = "main") -> pathlib.Path: |
| 24 | muse = path / ".muse" |
| 25 | (muse / "commits").mkdir(parents=True) |
| 26 | (muse / "snapshots").mkdir(parents=True) |
| 27 | (muse / "objects").mkdir(parents=True) |
| 28 | (muse / "refs" / "heads").mkdir(parents=True) |
| 29 | (muse / "HEAD").write_text(f"ref: refs/heads/{branch}", encoding="utf-8") |
| 30 | (muse / "repo.json").write_text( |
| 31 | json.dumps({"repo_id": "test-repo", "domain": "midi"}), encoding="utf-8" |
| 32 | ) |
| 33 | return path |
| 34 | |
| 35 | |
| 36 | def _env(repo: pathlib.Path) -> dict[str, str]: |
| 37 | return {"MUSE_REPO_ROOT": str(repo)} |
| 38 | |
| 39 | |
| 40 | def _snap(repo: pathlib.Path, tag: str = "snap") -> str: |
| 41 | sid = _sha(tag) |
| 42 | write_snapshot( |
| 43 | repo, |
| 44 | SnapshotRecord( |
| 45 | snapshot_id=sid, |
| 46 | manifest={}, |
| 47 | created_at=datetime.datetime(2026, 1, 1, tzinfo=datetime.timezone.utc), |
| 48 | ), |
| 49 | ) |
| 50 | return sid |
| 51 | |
| 52 | |
| 53 | def _commit( |
| 54 | repo: pathlib.Path, |
| 55 | tag: str, |
| 56 | snap_id: str, |
| 57 | branch: str = "main", |
| 58 | parent: str | None = None, |
| 59 | ) -> str: |
| 60 | cid = _sha(tag) |
| 61 | write_commit( |
| 62 | repo, |
| 63 | CommitRecord( |
| 64 | commit_id=cid, |
| 65 | repo_id="test-repo", |
| 66 | branch=branch, |
| 67 | snapshot_id=snap_id, |
| 68 | message=tag, |
| 69 | committed_at=datetime.datetime(2026, 1, 1, tzinfo=datetime.timezone.utc), |
| 70 | author="tester", |
| 71 | parent_commit_id=parent, |
| 72 | parent2_commit_id=None, |
| 73 | ), |
| 74 | ) |
| 75 | ref_path = repo / ".muse" / "refs" / "heads" / branch |
| 76 | ref_path.parent.mkdir(parents=True, exist_ok=True) |
| 77 | ref_path.write_text(cid, encoding="utf-8") |
| 78 | return cid |
| 79 | |
| 80 | |
| 81 | class TestSymbolicRef: |
| 82 | def test_read_json_default(self, tmp_path: pathlib.Path) -> None: |
| 83 | _init_repo(tmp_path) |
| 84 | result = runner.invoke(cli, ["plumbing", "symbolic-ref", "HEAD"], env=_env(tmp_path)) |
| 85 | assert result.exit_code == 0 |
| 86 | data = json.loads(result.output) |
| 87 | assert data["ref"] == "HEAD" |
| 88 | assert data["branch"] == "main" |
| 89 | assert data["symbolic_target"] == "refs/heads/main" |
| 90 | |
| 91 | def test_read_with_commit(self, tmp_path: pathlib.Path) -> None: |
| 92 | _init_repo(tmp_path) |
| 93 | sid = _snap(tmp_path) |
| 94 | cid = _commit(tmp_path, "c1", sid) |
| 95 | result = runner.invoke(cli, ["plumbing", "symbolic-ref", "HEAD"], env=_env(tmp_path)) |
| 96 | assert result.exit_code == 0 |
| 97 | data = json.loads(result.output) |
| 98 | assert data["commit_id"] == cid |
| 99 | |
| 100 | def test_read_text_format(self, tmp_path: pathlib.Path) -> None: |
| 101 | _init_repo(tmp_path) |
| 102 | result = runner.invoke( |
| 103 | cli, ["plumbing", "symbolic-ref", "--format", "text", "HEAD"], env=_env(tmp_path) |
| 104 | ) |
| 105 | assert result.exit_code == 0 |
| 106 | assert result.output.strip() == "refs/heads/main" |
| 107 | |
| 108 | def test_read_short_flag(self, tmp_path: pathlib.Path) -> None: |
| 109 | _init_repo(tmp_path) |
| 110 | result = runner.invoke( |
| 111 | cli, |
| 112 | ["plumbing", "symbolic-ref", "--format", "text", "--short", "HEAD"], |
| 113 | env=_env(tmp_path), |
| 114 | ) |
| 115 | assert result.exit_code == 0 |
| 116 | assert result.output.strip() == "main" |
| 117 | |
| 118 | def test_set_switches_branch(self, tmp_path: pathlib.Path) -> None: |
| 119 | _init_repo(tmp_path) |
| 120 | sid = _snap(tmp_path) |
| 121 | _commit(tmp_path, "c1", sid, "main") |
| 122 | _commit(tmp_path, "c2", sid, "other") |
| 123 | result = runner.invoke( |
| 124 | cli, ["plumbing", "symbolic-ref", "--set", "other", "HEAD"], env=_env(tmp_path) |
| 125 | ) |
| 126 | assert result.exit_code == 0 |
| 127 | data = json.loads(result.output) |
| 128 | assert data["branch"] == "other" |
| 129 | |
| 130 | def test_set_nonexistent_branch_errors(self, tmp_path: pathlib.Path) -> None: |
| 131 | _init_repo(tmp_path) |
| 132 | result = runner.invoke( |
| 133 | cli, ["plumbing", "symbolic-ref", "--set", "nonexistent", "HEAD"], env=_env(tmp_path) |
| 134 | ) |
| 135 | assert result.exit_code != 0 |
| 136 | data = json.loads(result.output) |
| 137 | assert "error" in data |
| 138 | |
| 139 | def test_invalid_format_errors(self, tmp_path: pathlib.Path) -> None: |
| 140 | _init_repo(tmp_path) |
| 141 | result = runner.invoke( |
| 142 | cli, ["plumbing", "symbolic-ref", "--format", "xml", "HEAD"], env=_env(tmp_path) |
| 143 | ) |
| 144 | assert result.exit_code != 0 |
| 145 | |
| 146 | def test_unsupported_ref_name_errors(self, tmp_path: pathlib.Path) -> None: |
| 147 | _init_repo(tmp_path) |
| 148 | result = runner.invoke( |
| 149 | cli, ["plumbing", "symbolic-ref", "MERGE_HEAD"], env=_env(tmp_path) |
| 150 | ) |
| 151 | assert result.exit_code != 0 |
| 152 | data = json.loads(result.output) |
| 153 | assert "error" in data |
| 154 | |
| 155 | def test_no_commits_commit_id_none(self, tmp_path: pathlib.Path) -> None: |
| 156 | """Fresh repo with no commits: commit_id should be null.""" |
| 157 | _init_repo(tmp_path) |
| 158 | result = runner.invoke(cli, ["plumbing", "symbolic-ref", "HEAD"], env=_env(tmp_path)) |
| 159 | assert result.exit_code == 0 |
| 160 | data = json.loads(result.output) |
| 161 | assert data["commit_id"] is None |