test_core_shallow.py
python
sha256:f8e686793bb93114c2923d0d294162d13b4e6f4d57ae0f6cbc1e0d493e80f965
fix: ls-remote signing identity uses resolved remote URL
Sonnet 4.6
patch
11 days ago
| 1 | """Tests for muse/core/shallow.py — shallow graft management. |
| 2 | |
| 3 | A shallow repo is one whose local history is intentionally incomplete. |
| 4 | `.muse/shallow` lists the boundary commits: their snapshots and objects |
| 5 | are expected locally, but their parents are not. |
| 6 | |
| 7 | Coverage: |
| 8 | Unit: read/write/add/remove/is_shallow/shallow_path |
| 9 | Edge cases: empty file, nonexistent file, duplicate IDs, bare hex IDs, |
| 10 | sha256:-prefixed IDs, invalid lines silently skipped |
| 11 | Integration: BFS walk stops at shallow boundary (tested via run_verify) |
| 12 | """ |
| 13 | |
| 14 | from __future__ import annotations |
| 15 | |
| 16 | import json |
| 17 | import pathlib |
| 18 | |
| 19 | import pytest |
| 20 | |
| 21 | from muse.core.shallow import ( |
| 22 | add_shallow, |
| 23 | is_shallow, |
| 24 | read_shallow, |
| 25 | remove_shallow, |
| 26 | shallow_path, |
| 27 | write_shallow, |
| 28 | ) |
| 29 | from muse.core.types import long_id |
| 30 | from muse.core.paths import muse_dir |
| 31 | |
| 32 | |
| 33 | # --------------------------------------------------------------------------- |
| 34 | # Helpers |
| 35 | # --------------------------------------------------------------------------- |
| 36 | |
| 37 | def _init_repo(path: pathlib.Path) -> pathlib.Path: |
| 38 | muse = muse_dir(path) |
| 39 | for d in ("commits", "snapshots", "objects", "refs/heads"): |
| 40 | (muse / d).mkdir(parents=True, exist_ok=True) |
| 41 | (muse / "HEAD").write_text("ref: refs/heads/main") |
| 42 | (muse / "repo.json").write_text(json.dumps({"repo_id": "shallow-test", "domain": "code"})) |
| 43 | return path |
| 44 | |
| 45 | |
| 46 | _CID_A = long_id("a" * 64) |
| 47 | _CID_B = long_id("b" * 64) |
| 48 | _CID_C = long_id("c" * 64) |
| 49 | |
| 50 | |
| 51 | # --------------------------------------------------------------------------- |
| 52 | # shallow_path |
| 53 | # --------------------------------------------------------------------------- |
| 54 | |
| 55 | class TestShallowPath: |
| 56 | def test_returns_path_under_muse(self, tmp_path: pathlib.Path) -> None: |
| 57 | p = shallow_path(tmp_path) |
| 58 | assert p == muse_dir(tmp_path) / "shallow" |
| 59 | |
| 60 | def test_does_not_create_file(self, tmp_path: pathlib.Path) -> None: |
| 61 | shallow_path(tmp_path) |
| 62 | assert not (muse_dir(tmp_path) / "shallow").exists() |
| 63 | |
| 64 | |
| 65 | # --------------------------------------------------------------------------- |
| 66 | # read_shallow |
| 67 | # --------------------------------------------------------------------------- |
| 68 | |
| 69 | class TestReadShallow: |
| 70 | def test_returns_empty_frozenset_when_no_file(self, tmp_path: pathlib.Path) -> None: |
| 71 | repo = _init_repo(tmp_path) |
| 72 | result = read_shallow(repo) |
| 73 | assert result == frozenset() |
| 74 | |
| 75 | def test_returns_empty_frozenset_for_empty_file(self, tmp_path: pathlib.Path) -> None: |
| 76 | repo = _init_repo(tmp_path) |
| 77 | (muse_dir(repo) / "shallow").write_text("") |
| 78 | assert read_shallow(repo) == frozenset() |
| 79 | |
| 80 | def test_reads_single_commit(self, tmp_path: pathlib.Path) -> None: |
| 81 | repo = _init_repo(tmp_path) |
| 82 | (muse_dir(repo) / "shallow").write_text(_CID_A + "\n") |
| 83 | assert read_shallow(repo) == frozenset({_CID_A}) |
| 84 | |
| 85 | def test_reads_multiple_commits(self, tmp_path: pathlib.Path) -> None: |
| 86 | repo = _init_repo(tmp_path) |
| 87 | (muse_dir(repo) / "shallow").write_text(f"{_CID_A}\n{_CID_B}\n{_CID_C}\n") |
| 88 | assert read_shallow(repo) == frozenset({_CID_A, _CID_B, _CID_C}) |
| 89 | |
| 90 | def test_ignores_blank_lines(self, tmp_path: pathlib.Path) -> None: |
| 91 | repo = _init_repo(tmp_path) |
| 92 | (muse_dir(repo) / "shallow").write_text(f"{_CID_A}\n\n{_CID_B}\n") |
| 93 | assert read_shallow(repo) == frozenset({_CID_A, _CID_B}) |
| 94 | |
| 95 | def test_strips_whitespace(self, tmp_path: pathlib.Path) -> None: |
| 96 | repo = _init_repo(tmp_path) |
| 97 | (muse_dir(repo) / "shallow").write_text(f" {_CID_A} \n") |
| 98 | assert _CID_A in read_shallow(repo) |
| 99 | |
| 100 | def test_ignores_comment_lines(self, tmp_path: pathlib.Path) -> None: |
| 101 | repo = _init_repo(tmp_path) |
| 102 | (muse_dir(repo) / "shallow").write_text(f"# generated by muse\n{_CID_A}\n") |
| 103 | assert read_shallow(repo) == frozenset({_CID_A}) |
| 104 | |
| 105 | def test_returns_frozenset_not_set(self, tmp_path: pathlib.Path) -> None: |
| 106 | repo = _init_repo(tmp_path) |
| 107 | (muse_dir(repo) / "shallow").write_text(_CID_A + "\n") |
| 108 | result = read_shallow(repo) |
| 109 | assert isinstance(result, frozenset) |
| 110 | |
| 111 | def test_deduplicates(self, tmp_path: pathlib.Path) -> None: |
| 112 | repo = _init_repo(tmp_path) |
| 113 | (muse_dir(repo) / "shallow").write_text(f"{_CID_A}\n{_CID_A}\n") |
| 114 | assert read_shallow(repo) == frozenset({_CID_A}) |
| 115 | |
| 116 | |
| 117 | # --------------------------------------------------------------------------- |
| 118 | # write_shallow |
| 119 | # --------------------------------------------------------------------------- |
| 120 | |
| 121 | class TestWriteShallow: |
| 122 | def test_writes_empty_set_creates_empty_file(self, tmp_path: pathlib.Path) -> None: |
| 123 | repo = _init_repo(tmp_path) |
| 124 | write_shallow(repo, set()) |
| 125 | p = muse_dir(repo) / "shallow" |
| 126 | assert p.exists() |
| 127 | assert p.read_text().strip() == "" |
| 128 | |
| 129 | def test_writes_single_commit(self, tmp_path: pathlib.Path) -> None: |
| 130 | repo = _init_repo(tmp_path) |
| 131 | write_shallow(repo, {_CID_A}) |
| 132 | result = read_shallow(repo) |
| 133 | assert result == frozenset({_CID_A}) |
| 134 | |
| 135 | def test_writes_multiple_commits_sorted(self, tmp_path: pathlib.Path) -> None: |
| 136 | repo = _init_repo(tmp_path) |
| 137 | write_shallow(repo, {_CID_C, _CID_A, _CID_B}) |
| 138 | lines = [l for l in (muse_dir(repo) / "shallow").read_text().splitlines() if l.strip()] |
| 139 | assert lines == sorted(lines) |
| 140 | |
| 141 | def test_round_trips(self, tmp_path: pathlib.Path) -> None: |
| 142 | repo = _init_repo(tmp_path) |
| 143 | original = {_CID_A, _CID_B, _CID_C} |
| 144 | write_shallow(repo, original) |
| 145 | assert read_shallow(repo) == frozenset(original) |
| 146 | |
| 147 | def test_overwrites_existing(self, tmp_path: pathlib.Path) -> None: |
| 148 | repo = _init_repo(tmp_path) |
| 149 | write_shallow(repo, {_CID_A, _CID_B}) |
| 150 | write_shallow(repo, {_CID_C}) |
| 151 | assert read_shallow(repo) == frozenset({_CID_C}) |
| 152 | |
| 153 | def test_creates_muse_dir_if_absent(self, tmp_path: pathlib.Path) -> None: |
| 154 | # .muse dir may not exist yet |
| 155 | write_shallow(tmp_path, {_CID_A}) |
| 156 | assert (muse_dir(tmp_path) / "shallow").exists() |
| 157 | |
| 158 | |
| 159 | # --------------------------------------------------------------------------- |
| 160 | # add_shallow |
| 161 | # --------------------------------------------------------------------------- |
| 162 | |
| 163 | class TestAddShallow: |
| 164 | def test_adds_to_empty(self, tmp_path: pathlib.Path) -> None: |
| 165 | repo = _init_repo(tmp_path) |
| 166 | add_shallow(repo, _CID_A) |
| 167 | assert read_shallow(repo) == frozenset({_CID_A}) |
| 168 | |
| 169 | def test_adds_to_existing(self, tmp_path: pathlib.Path) -> None: |
| 170 | repo = _init_repo(tmp_path) |
| 171 | write_shallow(repo, {_CID_A}) |
| 172 | add_shallow(repo, _CID_B) |
| 173 | assert read_shallow(repo) == frozenset({_CID_A, _CID_B}) |
| 174 | |
| 175 | def test_add_is_idempotent(self, tmp_path: pathlib.Path) -> None: |
| 176 | repo = _init_repo(tmp_path) |
| 177 | add_shallow(repo, _CID_A) |
| 178 | add_shallow(repo, _CID_A) |
| 179 | assert read_shallow(repo) == frozenset({_CID_A}) |
| 180 | |
| 181 | def test_add_when_no_file_exists(self, tmp_path: pathlib.Path) -> None: |
| 182 | repo = _init_repo(tmp_path) |
| 183 | assert not (muse_dir(repo) / "shallow").exists() |
| 184 | add_shallow(repo, _CID_A) |
| 185 | assert _CID_A in read_shallow(repo) |
| 186 | |
| 187 | |
| 188 | # --------------------------------------------------------------------------- |
| 189 | # remove_shallow |
| 190 | # --------------------------------------------------------------------------- |
| 191 | |
| 192 | class TestRemoveShallow: |
| 193 | def test_removes_existing_entry(self, tmp_path: pathlib.Path) -> None: |
| 194 | repo = _init_repo(tmp_path) |
| 195 | write_shallow(repo, {_CID_A, _CID_B}) |
| 196 | remove_shallow(repo, _CID_A) |
| 197 | assert read_shallow(repo) == frozenset({_CID_B}) |
| 198 | |
| 199 | def test_remove_nonexistent_is_noop(self, tmp_path: pathlib.Path) -> None: |
| 200 | repo = _init_repo(tmp_path) |
| 201 | write_shallow(repo, {_CID_A}) |
| 202 | remove_shallow(repo, _CID_C) # not present |
| 203 | assert read_shallow(repo) == frozenset({_CID_A}) |
| 204 | |
| 205 | def test_remove_from_empty_is_noop(self, tmp_path: pathlib.Path) -> None: |
| 206 | repo = _init_repo(tmp_path) |
| 207 | remove_shallow(repo, _CID_A) # no file |
| 208 | assert read_shallow(repo) == frozenset() |
| 209 | |
| 210 | def test_remove_last_entry_leaves_empty(self, tmp_path: pathlib.Path) -> None: |
| 211 | repo = _init_repo(tmp_path) |
| 212 | write_shallow(repo, {_CID_A}) |
| 213 | remove_shallow(repo, _CID_A) |
| 214 | assert read_shallow(repo) == frozenset() |
| 215 | |
| 216 | |
| 217 | # --------------------------------------------------------------------------- |
| 218 | # is_shallow |
| 219 | # --------------------------------------------------------------------------- |
| 220 | |
| 221 | class TestIsShallow: |
| 222 | def test_false_when_no_file(self, tmp_path: pathlib.Path) -> None: |
| 223 | repo = _init_repo(tmp_path) |
| 224 | assert is_shallow(repo) is False |
| 225 | |
| 226 | def test_false_when_empty_file(self, tmp_path: pathlib.Path) -> None: |
| 227 | repo = _init_repo(tmp_path) |
| 228 | (muse_dir(repo) / "shallow").write_text("") |
| 229 | assert is_shallow(repo) is False |
| 230 | |
| 231 | def test_true_when_has_entry(self, tmp_path: pathlib.Path) -> None: |
| 232 | repo = _init_repo(tmp_path) |
| 233 | write_shallow(repo, {_CID_A}) |
| 234 | assert is_shallow(repo) is True |
| 235 | |
| 236 | def test_true_with_multiple_entries(self, tmp_path: pathlib.Path) -> None: |
| 237 | repo = _init_repo(tmp_path) |
| 238 | write_shallow(repo, {_CID_A, _CID_B}) |
| 239 | assert is_shallow(repo) is True |
| 240 | |
| 241 | def test_false_after_removing_all(self, tmp_path: pathlib.Path) -> None: |
| 242 | repo = _init_repo(tmp_path) |
| 243 | write_shallow(repo, {_CID_A}) |
| 244 | remove_shallow(repo, _CID_A) |
| 245 | assert is_shallow(repo) is False |
File History
1 commit
sha256:f8e686793bb93114c2923d0d294162d13b4e6f4d57ae0f6cbc1e0d493e80f965
fix: ls-remote signing identity uses resolved remote URL
Sonnet 4.6
patch
11 days ago