test_breakage_supercharge.py
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| 1 | """Supercharge tests for ``muse code breakage`` — agent-usability gaps. |
| 2 | |
| 3 | The existing test file (test_cmd_breakage.py, 855 lines) already covers |
| 4 | correctness, exit codes, regression, and stress. This file targets only the |
| 5 | gaps those tests leave open: |
| 6 | |
| 7 | Coverage matrix |
| 8 | --------------- |
| 9 | - --json / -j: -j alias works identically to --json |
| 10 | - exit_code: JSON output includes exit_code mirroring process exit |
| 11 | - duration_ms: JSON output includes non-negative float duration_ms |
| 12 | - TypedDicts: _BreakageOutputJson gains exit_code/duration_ms annotations |
| 13 | - Docstrings: run() docstring mentions exit_code and duration_ms |
| 14 | - ANSI: JSON output never contains terminal escape sequences |
| 15 | - Performance: duration_ms stays under 2000 ms for a small repo |
| 16 | |
| 17 | Critical distinction from other commands: exit_code in the JSON payload |
| 18 | mirrors the actual computed process exit code (may be 1 when issues are |
| 19 | found), NOT hardcoded to 0. |
| 20 | """ |
| 21 | |
| 22 | from __future__ import annotations |
| 23 | from collections.abc import Mapping |
| 24 | |
| 25 | import json |
| 26 | import pathlib |
| 27 | import textwrap |
| 28 | |
| 29 | import pytest |
| 30 | |
| 31 | from tests.cli_test_helper import CliRunner |
| 32 | |
| 33 | runner = CliRunner() |
| 34 | |
| 35 | |
| 36 | # --------------------------------------------------------------------------- |
| 37 | # Helpers |
| 38 | # --------------------------------------------------------------------------- |
| 39 | |
| 40 | |
| 41 | def _env(root: pathlib.Path) -> Mapping[str, str]: |
| 42 | return {"MUSE_REPO_ROOT": str(root)} |
| 43 | |
| 44 | |
| 45 | def _run(root: pathlib.Path, *args: str) -> "InvokeResult": |
| 46 | return runner.invoke(None, list(args), env=_env(root)) |
| 47 | |
| 48 | |
| 49 | # --------------------------------------------------------------------------- |
| 50 | # Fixture — clean repo with no working-tree changes (no breakage) |
| 51 | # --------------------------------------------------------------------------- |
| 52 | |
| 53 | |
| 54 | @pytest.fixture() |
| 55 | def clean_repo(tmp_path: pathlib.Path, monkeypatch: pytest.MonkeyPatch) -> pathlib.Path: |
| 56 | """Code-domain repo whose working tree matches HEAD — zero breakage.""" |
| 57 | monkeypatch.chdir(tmp_path) |
| 58 | |
| 59 | r = _run(tmp_path, "init", "--domain", "code") |
| 60 | assert r.exit_code == 0, r.output |
| 61 | |
| 62 | (tmp_path / "billing.py").write_text(textwrap.dedent("""\ |
| 63 | class Invoice: |
| 64 | def compute_total(self, items): |
| 65 | return sum(items) |
| 66 | |
| 67 | def add_tax(self, rate): |
| 68 | return rate |
| 69 | |
| 70 | def create_invoice(items): |
| 71 | return Invoice() |
| 72 | """)) |
| 73 | r1 = _run(tmp_path, "code", "add", "billing.py") |
| 74 | assert r1.exit_code == 0, r1.output |
| 75 | r2 = _run(tmp_path, "commit", "-m", "initial billing") |
| 76 | assert r2.exit_code == 0, r2.output |
| 77 | |
| 78 | return tmp_path |
| 79 | |
| 80 | |
| 81 | # --------------------------------------------------------------------------- |
| 82 | # Fixture — repo with a removed public method in the working tree (breakage) |
| 83 | # --------------------------------------------------------------------------- |
| 84 | |
| 85 | |
| 86 | @pytest.fixture() |
| 87 | def broken_repo(tmp_path: pathlib.Path, monkeypatch: pytest.MonkeyPatch) -> pathlib.Path: |
| 88 | """Repo where working tree removes a public method → breakage detected. |
| 89 | |
| 90 | Commit 1: Invoice has compute_total + add_tax |
| 91 | Working tree: Invoice has only compute_total (add_tax removed) |
| 92 | → removed_public_method error → exit_code == 1 |
| 93 | """ |
| 94 | monkeypatch.chdir(tmp_path) |
| 95 | |
| 96 | r = _run(tmp_path, "init", "--domain", "code") |
| 97 | assert r.exit_code == 0, r.output |
| 98 | |
| 99 | (tmp_path / "billing.py").write_text(textwrap.dedent("""\ |
| 100 | class Invoice: |
| 101 | def compute_total(self, items): |
| 102 | return sum(items) |
| 103 | |
| 104 | def add_tax(self, rate): |
| 105 | return rate |
| 106 | """)) |
| 107 | r1 = _run(tmp_path, "code", "add", "billing.py") |
| 108 | assert r1.exit_code == 0, r1.output |
| 109 | r2 = _run(tmp_path, "commit", "-m", "initial billing") |
| 110 | assert r2.exit_code == 0, r2.output |
| 111 | |
| 112 | # Remove add_tax from working tree (not committed) |
| 113 | (tmp_path / "billing.py").write_text(textwrap.dedent("""\ |
| 114 | class Invoice: |
| 115 | def compute_total(self, items): |
| 116 | return sum(items) |
| 117 | """)) |
| 118 | |
| 119 | return tmp_path |
| 120 | |
| 121 | |
| 122 | # --------------------------------------------------------------------------- |
| 123 | # TestJsonAlias — -j works identically to --json |
| 124 | # --------------------------------------------------------------------------- |
| 125 | |
| 126 | |
| 127 | class TestJsonAlias: |
| 128 | """The -j shorthand must behave identically to --json.""" |
| 129 | |
| 130 | def test_j_alias_exits_zero_on_clean_repo(self, clean_repo: pathlib.Path) -> None: |
| 131 | r = _run(clean_repo, "code", "breakage", "-j") |
| 132 | assert r.exit_code == 0, r.output |
| 133 | |
| 134 | def test_j_alias_valid_json(self, clean_repo: pathlib.Path) -> None: |
| 135 | r = _run(clean_repo, "code", "breakage", "-j") |
| 136 | json.loads(r.output) # must not raise |
| 137 | |
| 138 | def test_j_alias_has_issues_key(self, clean_repo: pathlib.Path) -> None: |
| 139 | r = _run(clean_repo, "code", "breakage", "-j") |
| 140 | data = json.loads(r.output) |
| 141 | assert "issues" in data |
| 142 | |
| 143 | def test_j_alias_has_errors_key(self, clean_repo: pathlib.Path) -> None: |
| 144 | r = _run(clean_repo, "code", "breakage", "-j") |
| 145 | data = json.loads(r.output) |
| 146 | assert "errors" in data |
| 147 | |
| 148 | def test_j_alias_same_top_level_keys_as_json_flag(self, clean_repo: pathlib.Path) -> None: |
| 149 | r1 = _run(clean_repo, "code", "breakage", "--json") |
| 150 | r2 = _run(clean_repo, "code", "breakage", "-j") |
| 151 | d1 = json.loads(r1.output) |
| 152 | d2 = json.loads(r2.output) |
| 153 | d1.pop("duration_ms", None) |
| 154 | d2.pop("duration_ms", None) |
| 155 | assert set(d1.keys()) == set(d2.keys()) |
| 156 | |
| 157 | def test_j_alias_same_exit_code_as_json_flag(self, clean_repo: pathlib.Path) -> None: |
| 158 | r1 = _run(clean_repo, "code", "breakage", "--json") |
| 159 | r2 = _run(clean_repo, "code", "breakage", "-j") |
| 160 | assert r1.exit_code == r2.exit_code |
| 161 | |
| 162 | |
| 163 | # --------------------------------------------------------------------------- |
| 164 | # TestDurationMs — JSON output must include duration_ms |
| 165 | # --------------------------------------------------------------------------- |
| 166 | |
| 167 | |
| 168 | class TestDurationMs: |
| 169 | """JSON output must include a non-negative float duration_ms.""" |
| 170 | |
| 171 | def test_json_has_duration_ms(self, clean_repo: pathlib.Path) -> None: |
| 172 | r = _run(clean_repo, "code", "breakage", "--json") |
| 173 | data = json.loads(r.output) |
| 174 | assert "duration_ms" in data |
| 175 | |
| 176 | def test_json_duration_ms_nonnegative(self, clean_repo: pathlib.Path) -> None: |
| 177 | r = _run(clean_repo, "code", "breakage", "--json") |
| 178 | data = json.loads(r.output) |
| 179 | assert data["duration_ms"] >= 0 |
| 180 | |
| 181 | def test_json_duration_ms_is_float(self, clean_repo: pathlib.Path) -> None: |
| 182 | r = _run(clean_repo, "code", "breakage", "--json") |
| 183 | data = json.loads(r.output) |
| 184 | assert isinstance(data["duration_ms"], float) |
| 185 | |
| 186 | def test_j_alias_duration_ms_present(self, clean_repo: pathlib.Path) -> None: |
| 187 | r = _run(clean_repo, "code", "breakage", "-j") |
| 188 | data = json.loads(r.output) |
| 189 | assert "duration_ms" in data |
| 190 | |
| 191 | def test_duration_ms_present_on_broken_repo(self, broken_repo: pathlib.Path) -> None: |
| 192 | r = _run(broken_repo, "code", "breakage", "--json") |
| 193 | data = json.loads(r.output) |
| 194 | assert "duration_ms" in data |
| 195 | assert data["duration_ms"] >= 0 |
| 196 | |
| 197 | def test_duration_ms_with_strict_flag(self, clean_repo: pathlib.Path) -> None: |
| 198 | r = _run(clean_repo, "code", "breakage", "--json", "--strict") |
| 199 | data = json.loads(r.output) |
| 200 | assert "duration_ms" in data |
| 201 | assert data["duration_ms"] >= 0 |
| 202 | |
| 203 | |
| 204 | # --------------------------------------------------------------------------- |
| 205 | # TestExitCode — JSON output must include exit_code mirroring process exit |
| 206 | # --------------------------------------------------------------------------- |
| 207 | |
| 208 | |
| 209 | class TestExitCode: |
| 210 | """JSON output must include exit_code that mirrors the process exit code.""" |
| 211 | |
| 212 | def test_json_has_exit_code(self, clean_repo: pathlib.Path) -> None: |
| 213 | r = _run(clean_repo, "code", "breakage", "--json") |
| 214 | data = json.loads(r.output) |
| 215 | assert "exit_code" in data |
| 216 | |
| 217 | def test_json_exit_code_zero_on_clean_repo(self, clean_repo: pathlib.Path) -> None: |
| 218 | r = _run(clean_repo, "code", "breakage", "--json") |
| 219 | assert r.exit_code == 0 |
| 220 | data = json.loads(r.output) |
| 221 | assert data["exit_code"] == 0 |
| 222 | |
| 223 | def test_json_exit_code_is_int(self, clean_repo: pathlib.Path) -> None: |
| 224 | r = _run(clean_repo, "code", "breakage", "--json") |
| 225 | data = json.loads(r.output) |
| 226 | assert isinstance(data["exit_code"], int) |
| 227 | |
| 228 | def test_j_alias_exit_code_present(self, clean_repo: pathlib.Path) -> None: |
| 229 | r = _run(clean_repo, "code", "breakage", "-j") |
| 230 | data = json.loads(r.output) |
| 231 | assert "exit_code" in data |
| 232 | |
| 233 | def test_exit_code_mirrors_process_exit_on_clean(self, clean_repo: pathlib.Path) -> None: |
| 234 | r = _run(clean_repo, "code", "breakage", "--json") |
| 235 | data = json.loads(r.output) |
| 236 | assert data["exit_code"] == r.exit_code |
| 237 | |
| 238 | def test_exit_code_one_on_broken_repo(self, broken_repo: pathlib.Path) -> None: |
| 239 | """Breakage with errors exits 1 and JSON exit_code == 1.""" |
| 240 | r = _run(broken_repo, "code", "breakage", "--json") |
| 241 | assert r.exit_code == 1 |
| 242 | data = json.loads(r.output) |
| 243 | assert data["exit_code"] == 1 |
| 244 | |
| 245 | def test_exit_code_mirrors_process_exit_on_broken(self, broken_repo: pathlib.Path) -> None: |
| 246 | r = _run(broken_repo, "code", "breakage", "--json") |
| 247 | data = json.loads(r.output) |
| 248 | assert data["exit_code"] == r.exit_code |
| 249 | |
| 250 | def test_exit_code_in_json_is_not_hardcoded_zero(self, broken_repo: pathlib.Path) -> None: |
| 251 | """Verify exit_code reflects real exit, not a hardcoded 0.""" |
| 252 | r = _run(broken_repo, "code", "breakage", "--json") |
| 253 | data = json.loads(r.output) |
| 254 | # exit_code must equal 1 (errors found), proving it's not hardcoded |
| 255 | assert data["exit_code"] != 0 |
| 256 | |
| 257 | |
| 258 | # --------------------------------------------------------------------------- |
| 259 | # TestTypedDicts — _BreakageOutputJson carries the new fields |
| 260 | # --------------------------------------------------------------------------- |
| 261 | |
| 262 | |
| 263 | class TestTypedDicts: |
| 264 | """_BreakageOutputJson must carry exit_code/duration_ms annotations.""" |
| 265 | |
| 266 | def test_breakage_output_json_exists(self) -> None: |
| 267 | from muse.cli.commands.breakage import _BreakageOutputJson # noqa: F401 |
| 268 | |
| 269 | def test_breakage_output_json_has_exit_code_annotation(self) -> None: |
| 270 | from muse.cli.commands.breakage import _BreakageOutputJson |
| 271 | assert "exit_code" in _BreakageOutputJson.__annotations__ |
| 272 | |
| 273 | def test_breakage_output_json_has_duration_ms_annotation(self) -> None: |
| 274 | from muse.cli.commands.breakage import _BreakageOutputJson |
| 275 | assert "duration_ms" in _BreakageOutputJson.__annotations__ |
| 276 | |
| 277 | def test_breakage_output_json_retains_issues_annotation(self) -> None: |
| 278 | from muse.cli.commands.breakage import _BreakageOutputJson |
| 279 | assert "issues" in _BreakageOutputJson.__annotations__ |
| 280 | |
| 281 | def test_breakage_output_json_retains_errors_annotation(self) -> None: |
| 282 | from muse.cli.commands.breakage import _BreakageOutputJson |
| 283 | assert "errors" in _BreakageOutputJson.__annotations__ |
| 284 | |
| 285 | def test_breakage_output_json_retains_warnings_annotation(self) -> None: |
| 286 | from muse.cli.commands.breakage import _BreakageOutputJson |
| 287 | assert "warnings" in _BreakageOutputJson.__annotations__ |
| 288 | |
| 289 | def test_breakage_issue_exists(self) -> None: |
| 290 | from muse.cli.commands.breakage import _BreakageIssue # noqa: F401 |
| 291 | |
| 292 | def test_breakage_issue_has_severity(self) -> None: |
| 293 | from muse.cli.commands.breakage import _BreakageIssue |
| 294 | assert "severity" in _BreakageIssue.__annotations__ |
| 295 | |
| 296 | |
| 297 | # --------------------------------------------------------------------------- |
| 298 | # TestDocstrings — run() docstring documents new fields |
| 299 | # --------------------------------------------------------------------------- |
| 300 | |
| 301 | |
| 302 | class TestDocstrings: |
| 303 | """run() must document exit_code.""" |
| 304 | |
| 305 | def test_run_docstring_documents_fields(self) -> None: |
| 306 | from muse.cli.commands.breakage import run |
| 307 | assert "exit_code" in run.__doc__ |
| 308 | |
| 309 | |
| 310 | # --------------------------------------------------------------------------- |
| 311 | # TestAnsiSanitization — no escape codes in JSON output |
| 312 | # --------------------------------------------------------------------------- |
| 313 | |
| 314 | |
| 315 | class TestAnsiSanitization: |
| 316 | """No ANSI escape sequences anywhere in the JSON output.""" |
| 317 | |
| 318 | def test_json_output_no_ansi(self, clean_repo: pathlib.Path) -> None: |
| 319 | r = _run(clean_repo, "code", "breakage", "--json") |
| 320 | assert "\x1b" not in r.output |
| 321 | |
| 322 | def test_j_alias_output_no_ansi(self, clean_repo: pathlib.Path) -> None: |
| 323 | r = _run(clean_repo, "code", "breakage", "-j") |
| 324 | assert "\x1b" not in r.output |
| 325 | |
| 326 | def test_broken_repo_json_output_no_ansi(self, broken_repo: pathlib.Path) -> None: |
| 327 | r = _run(broken_repo, "code", "breakage", "--json") |
| 328 | assert "\x1b" not in r.output |
| 329 | |
| 330 | |
| 331 | # --------------------------------------------------------------------------- |
| 332 | # TestPerformance — duration_ms under 2000 ms for a small repo |
| 333 | # --------------------------------------------------------------------------- |
| 334 | |
| 335 | |
| 336 | class TestPerformance: |
| 337 | """duration_ms must be non-negative and under 2000 ms for small repos.""" |
| 338 | |
| 339 | def test_json_duration_under_2000ms(self, clean_repo: pathlib.Path) -> None: |
| 340 | r = _run(clean_repo, "code", "breakage", "--json") |
| 341 | data = json.loads(r.output) |
| 342 | assert data["duration_ms"] < 2000 |
| 343 | |
| 344 | def test_j_alias_duration_under_2000ms(self, clean_repo: pathlib.Path) -> None: |
| 345 | r = _run(clean_repo, "code", "breakage", "-j") |
| 346 | data = json.loads(r.output) |
| 347 | assert data["duration_ms"] < 2000 |
| 348 | |
| 349 | def test_broken_repo_duration_under_2000ms(self, broken_repo: pathlib.Path) -> None: |
| 350 | r = _run(broken_repo, "code", "breakage", "--json") |
| 351 | data = json.loads(r.output) |
| 352 | assert data["duration_ms"] < 2000 |
| 353 | |
| 354 | def test_duration_ms_is_float_not_int(self, clean_repo: pathlib.Path) -> None: |
| 355 | r = _run(clean_repo, "code", "breakage", "--json") |
| 356 | data = json.loads(r.output) |
| 357 | assert isinstance(data["duration_ms"], float) |