test_cmd_reflog_exists.py
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| 1 | """Phase 6 — RL_28–RL_30: ``muse reflog exists`` subcommand. |
| 2 | |
| 3 | TDD: tests written before implementation. |
| 4 | |
| 5 | Coverage tiers |
| 6 | -------------- |
| 7 | RL_28 muse reflog exists --json returns {"exists": true, "count": N}; exit 0 |
| 8 | RL_29 muse reflog exists --branch dev --json returns exists:false, count:0; exit 1 |
| 9 | RL_30 exit code 0 for exists, 1 for does-not-exist — scriptable without --json |
| 10 | """ |
| 11 | from __future__ import annotations |
| 12 | |
| 13 | import json |
| 14 | import pathlib |
| 15 | import time |
| 16 | |
| 17 | import pytest |
| 18 | |
| 19 | from muse.core.paths import muse_dir, logs_dir |
| 20 | from muse.core.types import fake_id |
| 21 | from tests.cli_test_helper import CliRunner |
| 22 | |
| 23 | runner = CliRunner() |
| 24 | cli = None |
| 25 | |
| 26 | # --------------------------------------------------------------------------- |
| 27 | # Helpers |
| 28 | # --------------------------------------------------------------------------- |
| 29 | |
| 30 | def _env(root: pathlib.Path) -> dict[str, str]: |
| 31 | return {"MUSE_REPO_ROOT": str(root)} |
| 32 | |
| 33 | |
| 34 | def _make_repo(tmp_path: pathlib.Path, branch: str = "main") -> pathlib.Path: |
| 35 | """Minimal .muse/ repo with no commits and an empty config.""" |
| 36 | from muse._version import __version__ |
| 37 | |
| 38 | dot = muse_dir(tmp_path) |
| 39 | for sub in ( |
| 40 | "refs/heads", "objects/sha256", "commits", "snapshots", |
| 41 | "logs/refs/heads", "logs", |
| 42 | ): |
| 43 | (dot / sub).mkdir(parents=True, exist_ok=True) |
| 44 | (dot / "repo.json").write_text( |
| 45 | json.dumps({"repo_id": "test-repo", "schema_version": __version__, "domain": "code"}) |
| 46 | ) |
| 47 | (dot / "HEAD").write_text(f"ref: refs/heads/{branch}\n") |
| 48 | (dot / "config.toml").write_text("") |
| 49 | return tmp_path |
| 50 | |
| 51 | |
| 52 | def _head_log(root: pathlib.Path) -> pathlib.Path: |
| 53 | return logs_dir(root) / "HEAD" |
| 54 | |
| 55 | |
| 56 | def _branch_log(root: pathlib.Path, branch: str) -> pathlib.Path: |
| 57 | return logs_dir(root) / "refs" / "heads" / branch |
| 58 | |
| 59 | |
| 60 | def _write_entries(log_path: pathlib.Path, n: int = 3) -> None: |
| 61 | """Write n reflog entries to log_path.""" |
| 62 | log_path.parent.mkdir(parents=True, exist_ok=True) |
| 63 | old = fake_id("old") |
| 64 | new = fake_id("new") |
| 65 | ts = int(time.time()) |
| 66 | lines = [f"{old} {new} user {ts} +0000\tcommit: entry-{i}\n" for i in range(n)] |
| 67 | log_path.write_text("".join(lines), encoding="utf-8") |
| 68 | |
| 69 | |
| 70 | # --------------------------------------------------------------------------- |
| 71 | # RL_28 — muse reflog exists --json: exists=true, count=N, exit 0 |
| 72 | # --------------------------------------------------------------------------- |
| 73 | |
| 74 | class TestReflogExistsTrue: |
| 75 | """RL_28: HEAD log has entries → exists=true, count=N, exit 0.""" |
| 76 | |
| 77 | def test_json_exists_true_when_head_log_has_entries( |
| 78 | self, tmp_path: pathlib.Path |
| 79 | ) -> None: |
| 80 | root = _make_repo(tmp_path) |
| 81 | _write_entries(_head_log(root), n=5) |
| 82 | |
| 83 | r = runner.invoke(cli, ["reflog", "exists", "--json"], env=_env(root)) |
| 84 | |
| 85 | assert r.exit_code == 0, r.output |
| 86 | data = json.loads(r.output) |
| 87 | assert data["exists"] is True |
| 88 | assert data["count"] == 5 |
| 89 | |
| 90 | def test_json_schema_has_all_required_fields( |
| 91 | self, tmp_path: pathlib.Path |
| 92 | ) -> None: |
| 93 | root = _make_repo(tmp_path) |
| 94 | _write_entries(_head_log(root), n=1) |
| 95 | |
| 96 | r = runner.invoke(cli, ["reflog", "exists", "--json"], env=_env(root)) |
| 97 | |
| 98 | data = json.loads(r.output) |
| 99 | for field in ("exists", "count", "ref", "exit_code", "duration_ms"): |
| 100 | assert field in data, f"missing key {field!r}" |
| 101 | |
| 102 | def test_ref_field_is_head_by_default(self, tmp_path: pathlib.Path) -> None: |
| 103 | root = _make_repo(tmp_path) |
| 104 | _write_entries(_head_log(root), n=2) |
| 105 | |
| 106 | r = runner.invoke(cli, ["reflog", "exists", "--json"], env=_env(root)) |
| 107 | |
| 108 | data = json.loads(r.output) |
| 109 | assert data["ref"] == "HEAD" |
| 110 | |
| 111 | def test_count_matches_actual_entry_count(self, tmp_path: pathlib.Path) -> None: |
| 112 | root = _make_repo(tmp_path) |
| 113 | _write_entries(_head_log(root), n=7) |
| 114 | |
| 115 | r = runner.invoke(cli, ["reflog", "exists", "--json"], env=_env(root)) |
| 116 | |
| 117 | data = json.loads(r.output) |
| 118 | assert data["count"] == 7 |
| 119 | |
| 120 | def test_branch_log_exists_with_entries(self, tmp_path: pathlib.Path) -> None: |
| 121 | root = _make_repo(tmp_path) |
| 122 | _write_entries(_branch_log(root, "dev"), n=3) |
| 123 | |
| 124 | r = runner.invoke( |
| 125 | cli, ["reflog", "exists", "--branch", "dev", "--json"], env=_env(root) |
| 126 | ) |
| 127 | |
| 128 | assert r.exit_code == 0, r.output |
| 129 | data = json.loads(r.output) |
| 130 | assert data["exists"] is True |
| 131 | assert data["count"] == 3 |
| 132 | |
| 133 | def test_branch_log_ref_field_uses_full_path( |
| 134 | self, tmp_path: pathlib.Path |
| 135 | ) -> None: |
| 136 | root = _make_repo(tmp_path) |
| 137 | _write_entries(_branch_log(root, "main"), n=1) |
| 138 | |
| 139 | r = runner.invoke( |
| 140 | cli, ["reflog", "exists", "--branch", "main", "--json"], env=_env(root) |
| 141 | ) |
| 142 | |
| 143 | data = json.loads(r.output) |
| 144 | assert data["ref"] == "refs/heads/main" |
| 145 | |
| 146 | def test_single_entry_reports_count_one(self, tmp_path: pathlib.Path) -> None: |
| 147 | root = _make_repo(tmp_path) |
| 148 | _write_entries(_head_log(root), n=1) |
| 149 | |
| 150 | r = runner.invoke(cli, ["reflog", "exists", "--json"], env=_env(root)) |
| 151 | |
| 152 | data = json.loads(r.output) |
| 153 | assert data["exists"] is True |
| 154 | assert data["count"] == 1 |
| 155 | |
| 156 | |
| 157 | # --------------------------------------------------------------------------- |
| 158 | # RL_29 — muse reflog exists --branch dev: exists=false, count=0, exit 1 |
| 159 | # --------------------------------------------------------------------------- |
| 160 | |
| 161 | class TestReflogExistsFalse: |
| 162 | """RL_29: no log file → exists=false, count=0, exit 1.""" |
| 163 | |
| 164 | def test_json_exists_false_when_no_head_log( |
| 165 | self, tmp_path: pathlib.Path |
| 166 | ) -> None: |
| 167 | root = _make_repo(tmp_path) |
| 168 | # No log written |
| 169 | |
| 170 | r = runner.invoke(cli, ["reflog", "exists", "--json"], env=_env(root)) |
| 171 | |
| 172 | assert r.exit_code == 1 |
| 173 | data = json.loads(r.output) |
| 174 | assert data["exists"] is False |
| 175 | assert data["count"] == 0 |
| 176 | |
| 177 | def test_json_exists_false_when_branch_has_no_log( |
| 178 | self, tmp_path: pathlib.Path |
| 179 | ) -> None: |
| 180 | root = _make_repo(tmp_path) |
| 181 | # HEAD has entries but dev branch does not |
| 182 | |
| 183 | _write_entries(_head_log(root), n=3) |
| 184 | |
| 185 | r = runner.invoke( |
| 186 | cli, ["reflog", "exists", "--branch", "dev", "--json"], env=_env(root) |
| 187 | ) |
| 188 | |
| 189 | assert r.exit_code == 1 |
| 190 | data = json.loads(r.output) |
| 191 | assert data["exists"] is False |
| 192 | assert data["count"] == 0 |
| 193 | |
| 194 | def test_json_exists_false_after_all_entries_deleted( |
| 195 | self, tmp_path: pathlib.Path |
| 196 | ) -> None: |
| 197 | root = _make_repo(tmp_path) |
| 198 | log = _head_log(root) |
| 199 | _write_entries(log, n=2) |
| 200 | |
| 201 | # Delete all entries |
| 202 | runner.invoke(cli, ["reflog", "delete", "--all"], env=_env(root)) |
| 203 | |
| 204 | r = runner.invoke(cli, ["reflog", "exists", "--json"], env=_env(root)) |
| 205 | |
| 206 | assert r.exit_code == 1 |
| 207 | data = json.loads(r.output) |
| 208 | assert data["exists"] is False |
| 209 | |
| 210 | def test_ref_field_is_head_when_no_log(self, tmp_path: pathlib.Path) -> None: |
| 211 | root = _make_repo(tmp_path) |
| 212 | |
| 213 | r = runner.invoke(cli, ["reflog", "exists", "--json"], env=_env(root)) |
| 214 | |
| 215 | data = json.loads(r.output) |
| 216 | assert data["ref"] == "HEAD" |
| 217 | |
| 218 | def test_branch_ref_field_on_missing_branch_log( |
| 219 | self, tmp_path: pathlib.Path |
| 220 | ) -> None: |
| 221 | root = _make_repo(tmp_path) |
| 222 | |
| 223 | r = runner.invoke( |
| 224 | cli, ["reflog", "exists", "--branch", "feat", "--json"], env=_env(root) |
| 225 | ) |
| 226 | |
| 227 | data = json.loads(r.output) |
| 228 | assert data["ref"] == "refs/heads/feat" |
| 229 | |
| 230 | |
| 231 | # --------------------------------------------------------------------------- |
| 232 | # RL_30 — exit codes without --json; scriptable interface |
| 233 | # --------------------------------------------------------------------------- |
| 234 | |
| 235 | class TestReflogExistsExitCode: |
| 236 | """RL_30: exit 0 when entries exist; exit 1 when none — no --json needed.""" |
| 237 | |
| 238 | def test_exit_zero_when_entries_exist(self, tmp_path: pathlib.Path) -> None: |
| 239 | root = _make_repo(tmp_path) |
| 240 | _write_entries(_head_log(root), n=3) |
| 241 | |
| 242 | r = runner.invoke(cli, ["reflog", "exists"], env=_env(root)) |
| 243 | |
| 244 | assert r.exit_code == 0 |
| 245 | |
| 246 | def test_exit_one_when_no_entries(self, tmp_path: pathlib.Path) -> None: |
| 247 | root = _make_repo(tmp_path) |
| 248 | |
| 249 | r = runner.invoke(cli, ["reflog", "exists"], env=_env(root)) |
| 250 | |
| 251 | assert r.exit_code == 1 |
| 252 | |
| 253 | def test_exit_zero_branch_exists(self, tmp_path: pathlib.Path) -> None: |
| 254 | root = _make_repo(tmp_path) |
| 255 | _write_entries(_branch_log(root, "main"), n=1) |
| 256 | |
| 257 | r = runner.invoke(cli, ["reflog", "exists", "--branch", "main"], env=_env(root)) |
| 258 | |
| 259 | assert r.exit_code == 0 |
| 260 | |
| 261 | def test_exit_one_branch_missing(self, tmp_path: pathlib.Path) -> None: |
| 262 | root = _make_repo(tmp_path) |
| 263 | |
| 264 | r = runner.invoke(cli, ["reflog", "exists", "--branch", "missing-branch"], env=_env(root)) |
| 265 | |
| 266 | assert r.exit_code == 1 |
| 267 | |
| 268 | def test_text_output_reports_count(self, tmp_path: pathlib.Path) -> None: |
| 269 | """Human output should mention the count when entries exist.""" |
| 270 | root = _make_repo(tmp_path) |
| 271 | _write_entries(_head_log(root), n=4) |
| 272 | |
| 273 | r = runner.invoke(cli, ["reflog", "exists"], env=_env(root)) |
| 274 | |
| 275 | # The count should appear in human output. |
| 276 | assert "4" in r.output |
| 277 | |
| 278 | def test_text_output_reports_no_entries(self, tmp_path: pathlib.Path) -> None: |
| 279 | """Human output should indicate no entries when the log is absent.""" |
| 280 | root = _make_repo(tmp_path) |
| 281 | |
| 282 | r = runner.invoke(cli, ["reflog", "exists"], env=_env(root)) |
| 283 | |
| 284 | combined = r.output + (r.stderr or "") |
| 285 | assert "no" in combined.lower() or "0" in combined |
| 286 | |
| 287 | def test_exit_code_matches_json_exists_field( |
| 288 | self, tmp_path: pathlib.Path |
| 289 | ) -> None: |
| 290 | """JSON exists=true → exit 0; exists=false → exit 1.""" |
| 291 | root = _make_repo(tmp_path) |
| 292 | _write_entries(_head_log(root), n=2) |
| 293 | |
| 294 | r_json = runner.invoke(cli, ["reflog", "exists", "--json"], env=_env(root)) |
| 295 | r_plain = runner.invoke(cli, ["reflog", "exists"], env=_env(root)) |
| 296 | |
| 297 | data = json.loads(r_json.output) |
| 298 | assert data["exists"] is True |
| 299 | assert r_json.exit_code == 0 |
| 300 | assert r_plain.exit_code == 0 |
| 301 | |
| 302 | def test_empty_repo_always_exits_one(self, tmp_path: pathlib.Path) -> None: |
| 303 | root = _make_repo(tmp_path) |
| 304 | |
| 305 | r = runner.invoke(cli, ["reflog", "exists"], env=_env(root)) |
| 306 | |
| 307 | assert r.exit_code == 1 |