GPT-6.1 Sol (effort default (no reasoning-effort override) · thinking on) on Implement npm-style semver range matching (caret/tilde/x/hyphen, prerelease rule) from a written spec

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{"type": "turn.started"}
{"type": "item.completed", "item": {"id": "item_0", "type": "agent_message", "text": "I\u2019ll read `RANGES.md` and the existing code, implement the rules, and verify prerelease handling.\n"}}
{"type": "item.started", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc \"pwd; rg --files -g 'AGENTS.md' -g 'RANGES.md' -g '*semrange*' -g '*test*'\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc \"pwd; rg --files -g 'AGENTS.md' -g 'RANGES.md' -g '*semrange*' -g '*test*'\"", "aggregated_output": "/home/bob/usecase-runs/batch/out/gpt-6.1-sol/169_e11/work\nsemrange.py\nRANGES.md\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc 'cat RANGES.md semrange.py; ls -la'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc 'cat RANGES.md semrange.py; ls -la'", "aggregated_output": "# Version range rules (subset of npm semver)\nVersions: `MAJOR.MINOR.PATCH` with optional `-prerelease` (dot-separated identifiers) and optional `+build` (ignored for comparison). A leading `v` or `=` is allowed. Invalid version strings -> `ValueError`.\nPrecedence: compare major, minor, patch numerically; a version with a prerelease is lower than the same version without; prerelease identifiers compare left to right: numeric ids numerically, alphanumeric ids lexically (ASCII), numeric < alphanumeric, a shorter list is lower if all preceding ids are equal.\nRange grammar:\n- `||` separates alternatives (any may match). Within an alternative, whitespace-separated comparators must all match.\n- Comparators: `<`, `<=`, `>`, `>=`, `=` (or no operator) followed by a (possibly partial) version.\n- X-ranges: `*`, `x`, `X` or a missing part. `1.x` = `>=1.0.0 <2.0.0-0`; `1.2.x` = `>=1.2.0 <1.3.0-0`; `*` or empty string = any version (`>=0.0.0`). Partial versions with an operator: `>1` = `>=2.0.0`, `<=1.2` = `<1.3.0-0`, `<1.2` = `<1.2.0-0`, `>=1.2` = `>=1.2.0`, `>1.2` = `>=1.3.0`.\n- Tilde: `~1.2.3` = `>=1.2.3 <1.3.0-0`; `~1.2` = `>=1.2.0 <1.3.0-0`; `~1` = `>=1.0.0 <2.0.0-0`.\n- Caret: `^1.2.3` = `>=1.2.3 <2.0.0-0`; `^0.2.3` = `>=0.2.3 <0.3.0-0`; `^0.0.3` = `>=0.0.3 <0.0.4-0`; `^1.2` = `>=1.2.0 <2.0.0-0`; `^0.0` = `>=0.0.0 <0.1.0-0`; `^0` = `>=0.0.0 <1.0.0-0`.\n- Hyphen: `A - B` = `>=A <=B`, with a partial B meaning up to the end of it (`1.2.3 - 2.3` = `>=1.2.3 <2.4.0-0`; `1.2 - 2` = `>=1.2.0 <3.0.0-0`); a partial A fills with zeros.\n- Whitespace between an operator and its version is allowed (`>= 1.2.3`).\nPrerelease rule: a version that has a prerelease tag satisfies a range only if some comparator **in the same alternative** has a prerelease tag on the same `MAJOR.MINOR.PATCH` (and the comparison is otherwise true). The implicit `-0` upper bounds produced by desugaring do not count for this rule. Example: `1.2.3-beta.2` satisfies `>1.2.3-beta.1 <1.3.0` but `1.2.4-beta` does not; `1.3.0-rc` does not satisfy `^1.2`.\nAn unparsable range raises `ValueError`.\nAPI in `semrange.py`: `compare(a, b) -> -1|0|1`, `satisfies(version, range) -> bool`, `max_satisfying(versions, range) -> str|None` (returns the original string of the highest satisfying version).\n\"\"\"TODO: implement per RANGES.md\"\"\"\ndef compare(a, b): raise NotImplementedError\ndef satisfies(version, rng): raise NotImplementedError\ndef max_satisfying(versions, rng): raise NotImplementedError\ntotal 20\ndrwxr-xr-x 6 bob bob 4096 Oct 22 11:23 .\ndrwxrwxr-x 3 bob bob 4096 Oct 22 11:23 ..\ndr-xr-xr-x 2 bob bob   40 Oct 22 11:23 .agents\ndr-xr-xr-x 2 bob bob   40 Oct 22 11:23 .aws\ndr-xr-xr-x 2 bob bob   40 Oct 22 11:23 .codex\ndr-xr-xr-x 2 bob bob   40 Oct 22 11:23 .git\n-rw-r--r-- 1 bob bob 2271 Oct 22 10:08 RANGES.md\n-rw-r--r-- 1 bob bob  311 Oct 22 10:08 TASK.md\n-rw-r--r-- 1 bob bob  197 Oct 22 10:08 semrange.py\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc \"cat > semrange.py <<'PY'\n\\\"\\\"\\\"Semantic version comparison and range matching as specified in RANGES.md.\\\"\\\"\\\"\nimport re\nfrom dataclasses import dataclass\n\n\n_NUM = r'(?:0|[1-9][0-9]*)'\n_ID = r'[0-9A-Za-z-]+'\n_VERSION = re.compile(\n    rf'(?P<core>{_NUM}\\\\.{_NUM}\\\\.{_NUM})'\n    rf'(?:-(?P<pre>{_ID}(?:\\\\.{_ID})*))?'\n    rf'(?:\\\\+(?P<build>{_ID}(?:\\\\.{_ID})*))?'\n)\n\n\n@dataclass(frozen=True)\nclass _Version:\n    core: tuple\n    pre: tuple = ()\n\n\ndef _strip_prefix(value):\n    if value[:1] in ('v', '='):\n        return value[1:]\n    return value\n\n\ndef _version(value):\n    if not isinstance(value, str):\n        raise ValueError('Invalid version')\n    match = _VERSION.fullmatch(_strip_prefix(value))\n    if not match:\n        raise ValueError('Invalid version: ' + repr(value))\n    pre = tuple((match['pre'] or '').split('.')) if match['pre'] else ()\n    if any(p.isdigit() and len(p) > 1 and p[0] == '0' for p in pre):\n        raise ValueError('Leading zero in prerelease identifier')\n    return _Version(tuple(map(int, match['core'].split('.'))), pre)\n\n\ndef _cmp(a, b):\n    if a.core \"'!= b.core:\n        return (a.core > b.core) - (a.core < b.core)\n    if not a.pre or not b.pre:\n        return (not a.pre) - (not b.pre)\n    for left, right in zip(a.pre, b.pre):\n        if left == right:\n            continue\n        ln, rn = left.isdigit(), right.isdigit()\n        if ln != rn:\n            return -1 if ln else 1\n        if ln:\n            left, right = int(left), int(right)\n        return (left > right) - (left < right)\n    return (len(a.pre) > len(b.pre)) - (len(a.pre) < len(b.pre))\n\n\ndef compare(a, b):\n    \"\"\"Return -1, 0, or 1 according to semantic version precedence.\"\"\"\n    return _cmp(_version(a), _version(b))\n\n\ndef _partial(text):\n    text = _strip_prefix(text)\n    # Prerelease and build metadata require a complete version.\n    if '\"'-' in text or '+' in text:\n        version = _version(text)\n        return version, 3\n    parts = text.split('.')\n    if not 1 <= len(parts) <= 3:\n        raise ValueError('Invalid partial version: ' + repr(text))\n    numbers = []\n    wildcard = False\n    for part in parts:\n        if part in ('*', 'x', 'X'):\n            wildcard = True\n        elif re.fullmatch(_NUM, part) and not wildcard:\n            numbers.append(int(part))\n        else:\n            raise ValueError('Invalid partial version: ' + repr(text))\n    return _Version(tuple(numbers + [0] * (3 - len(numbers)))), len(numbers)\n\n\ndef _upper(version, index):\n    core = list(version.core)\n    core[index] += 1\n    core[index + 1:] = [0] * (2 - index)\n    return _Version(tuple(core), ('0',))\n\n\ndef _compile(rng):\n    if not isinstance(rng, str):\n        raise ValueError('Invalid range')\n    alternatives = []\n    for alternative in rng.split('||'):\n        comparators, admitted = [], set()\n\n        def add(op, version, explicit=False):\n            comparators.append((op, version))\n            if explicit and version.pre:\n                admitted.add(version.core)\n\n        def expand(op, text):\n            version, count = _partial(text)\n            if op in ('~', '\"'^'\"'):\n                if count == 0:\n                    add('>=', _Version((0, 0, 0)))\n                    return\n                add('>=', version, True)\n                if op == '~':\n                    index = 0 if count == 1 else 1\n                else:\n                    index = next((i for i in range(count) if version.core[i]), count - 1)\n                add('<', _upper(version, index))\n            elif count == 3:\n                add(op or '=', version, True)\n            elif count == 0:\n                if op in ('<', '>'):\n                    add('<', _Version((0, 0, 0), ('0',)))\n                else:\n                    add('>=', _Version((0, 0, 0)))\n            elif op in ('', '='):\n                add('>=', version)\n                add('<', _upper(version, count - 1))\n            elif op == '>':\n                add('>=', _Version(_upper(version, count - 1).core))\n            elif op == '>=':\n                add('>=', version)\n            elif op == '<':\n                add('<', _Version(version.core, ('0',)))\n            elif op == '<=':\n                add('<', _upper(version, count - 1))\n\n        # Hyphen ranges are recognized before comparator tokenization.\n        def hyphen(match):\n            low, lc = _partial(match[1])\n            high, hc = _partial(match[2])\n            add('>=', low, lc == 3)\n            if hc == 3:\n                add('<=', high, True)\n            elif hc:\n                add('<', _upper(high, hc - 1))\n            return ' '\n\n        alternative = re.sub(r'(?<\"'!'\"\\\\S)(\\\\S+)\\\\s+-\\\\s+(\\\\S+)(?\"'!'\"\\\\S)', hyphen, alternative)\n        # Allow spaces after operators without allowing adjacent comparators.\n        alternative = re.sub(r'(<=|>=|[<>=~\"'^])'\"\\\\s+', r'\\\\1', alternative.strip())\n        for token in alternative.split():\n            match = re.fullmatch(r'(<=|>=|[<>=~\"'^])?([''^<>=~''^|]+)'\"', token)\n            if not match:\n                raise ValueError('Invalid range comparator: ' + repr(token))\n            expand(match[1] or '', match[2])\n        if not comparators:\n            add('>=', _Version((0, 0, 0)))\n        alternatives.append((comparators, admitted))\n    return alternatives\n\n\ndef _satisfies(version, alternatives):\n    for comparators, admitted in alternatives:\n        if version.pre and version.core not in admitted:\n            continue\n        for op, bound in comparators:\n            comparison = _cmp(version, bound)\n            if not {'=': comparison == 0, '<': comparison < 0,\n                    '<=': comparison <= 0, '>': comparison > 0,\n                    '>=': comparison >= 0}[op]:\n                break\n        else:\n            return True\n    return False\n\n\ndef satisfies(version, rng):\n    \\\"\\\"\\\"Test a version against a range, including prerelease admission rules.\\\"\\\"\\\"\n    return _satisfies(_version(version), _compile(rng))\n\n\ndef max_satisfying(versions, rng):\n    \\\"\\\"\\\"Return the original highest matching version string, or None.\\\"\\\"\\\"\n    alternatives = _compile(rng)\n    best, best_version = None, None\n    for original in versions:\n        version = _version(original)\n        if _satisfies(version, alternatives) and (best_version is None or _cmp(version, best_version) > 0):\n            best, best_version = original, version\n    return best\nPY\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc \"cat > semrange.py <<'PY'\n\\\"\\\"\\\"Semantic version comparison and range matching as specified in RANGES.md.\\\"\\\"\\\"\nimport re\nfrom dataclasses import dataclass\n\n\n_NUM = r'(?:0|[1-9][0-9]*)'\n_ID = r'[0-9A-Za-z-]+'\n_VERSION = re.compile(\n    rf'(?P<core>{_NUM}\\\\.{_NUM}\\\\.{_NUM})'\n    rf'(?:-(?P<pre>{_ID}(?:\\\\.{_ID})*))?'\n    rf'(?:\\\\+(?P<build>{_ID}(?:\\\\.{_ID})*))?'\n)\n\n\n@dataclass(frozen=True)\nclass _Version:\n    core: tuple\n    pre: tuple = ()\n\n\ndef _strip_prefix(value):\n    if value[:1] in ('v', '='):\n        return value[1:]\n    return value\n\n\ndef _version(value):\n    if not isinstance(value, str):\n        raise ValueError('Invalid version')\n    match = _VERSION.fullmatch(_strip_prefix(value))\n    if not match:\n        raise ValueError('Invalid version: ' + repr(value))\n    pre = tuple((match['pre'] or '').split('.')) if match['pre'] else ()\n    if any(p.isdigit() and len(p) > 1 and p[0] == '0' for p in pre):\n        raise ValueError('Leading zero in prerelease identifier')\n    return _Version(tuple(map(int, match['core'].split('.'))), pre)\n\n\ndef _cmp(a, b):\n    if a.core \"'!= b.core:\n        return (a.core > b.core) - (a.core < b.core)\n    if not a.pre or not b.pre:\n        return (not a.pre) - (not b.pre)\n    for left, right in zip(a.pre, b.pre):\n        if left == right:\n            continue\n        ln, rn = left.isdigit(), right.isdigit()\n        if ln != rn:\n            return -1 if ln else 1\n        if ln:\n            left, right = int(left), int(right)\n        return (left > right) - (left < right)\n    return (len(a.pre) > len(b.pre)) - (len(a.pre) < len(b.pre))\n\n\ndef compare(a, b):\n    \"\"\"Return -1, 0, or 1 according to semantic version precedence.\"\"\"\n    return _cmp(_version(a), _version(b))\n\n\ndef _partial(text):\n    text = _strip_prefix(text)\n    # Prerelease and build metadata require a complete version.\n    if '\"'-' in text or '+' in text:\n        version = _version(text)\n        return version, 3\n    parts = text.split('.')\n    if not 1 <= len(parts) <= 3:\n        raise ValueError('Invalid partial version: ' + repr(text))\n    numbers = []\n    wildcard = False\n    for part in parts:\n        if part in ('*', 'x', 'X'):\n            wildcard = True\n        elif re.fullmatch(_NUM, part) and not wildcard:\n            numbers.append(int(part))\n        else:\n            raise ValueError('Invalid partial version: ' + repr(text))\n    return _Version(tuple(numbers + [0] * (3 - len(numbers)))), len(numbers)\n\n\ndef _upper(version, index):\n    core = list(version.core)\n    core[index] += 1\n    core[index + 1:] = [0] * (2 - index)\n    return _Version(tuple(core), ('0',))\n\n\ndef _compile(rng):\n    if not isinstance(rng, str):\n        raise ValueError('Invalid range')\n    alternatives = []\n    for alternative in rng.split('||'):\n        comparators, admitted = [], set()\n\n        def add(op, version, explicit=False):\n            comparators.append((op, version))\n            if explicit and version.pre:\n                admitted.add(version.core)\n\n        def expand(op, text):\n            version, count = _partial(text)\n            if op in ('~', '\"'^'\"'):\n                if count == 0:\n                    add('>=', _Version((0, 0, 0)))\n                    return\n                add('>=', version, True)\n                if op == '~':\n                    index = 0 if count == 1 else 1\n                else:\n                    index = next((i for i in range(count) if version.core[i]), count - 1)\n                add('<', _upper(version, index))\n            elif count == 3:\n                add(op or '=', version, True)\n            elif count == 0:\n                if op in ('<', '>'):\n                    add('<', _Version((0, 0, 0), ('0',)))\n                else:\n                    add('>=', _Version((0, 0, 0)))\n            elif op in ('', '='):\n                add('>=', version)\n                add('<', _upper(version, count - 1))\n            elif op == '>':\n                add('>=', _Version(_upper(version, count - 1).core))\n            elif op == '>=':\n                add('>=', version)\n            elif op == '<':\n                add('<', _Version(version.core, ('0',)))\n            elif op == '<=':\n                add('<', _upper(version, count - 1))\n\n        # Hyphen ranges are recognized before comparator tokenization.\n        def hyphen(match):\n            low, lc = _partial(match[1])\n            high, hc = _partial(match[2])\n            add('>=', low, lc == 3)\n            if hc == 3:\n                add('<=', high, True)\n            elif hc:\n                add('<', _upper(high, hc - 1))\n            return ' '\n\n        alternative = re.sub(r'(?<\"'!'\"\\\\S)(\\\\S+)\\\\s+-\\\\s+(\\\\S+)(?\"'!'\"\\\\S)', hyphen, alternative)\n        # Allow spaces after operators without allowing adjacent comparators.\n        alternative = re.sub(r'(<=|>=|[<>=~\"'^])'\"\\\\s+', r'\\\\1', alternative.strip())\n        for token in alternative.split():\n            match = re.fullmatch(r'(<=|>=|[<>=~\"'^])?([''^<>=~''^|]+)'\"', token)\n            if not match:\n                raise ValueError('Invalid range comparator: ' + repr(token))\n            expand(match[1] or '', match[2])\n        if not comparators:\n            add('>=', _Version((0, 0, 0)))\n        alternatives.append((comparators, admitted))\n    return alternatives\n\n\ndef _satisfies(version, alternatives):\n    for comparators, admitted in alternatives:\n        if version.pre and version.core not in admitted:\n            continue\n        for op, bound in comparators:\n            comparison = _cmp(version, bound)\n            if not {'=': comparison == 0, '<': comparison < 0,\n                    '<=': comparison <= 0, '>': comparison > 0,\n                    '>=': comparison >= 0}[op]:\n                break\n        else:\n            return True\n    return False\n\n\ndef satisfies(version, rng):\n    \\\"\\\"\\\"Test a version against a range, including prerelease admission rules.\\\"\\\"\\\"\n    return _satisfies(_version(version), _compile(rng))\n\n\ndef max_satisfying(versions, rng):\n    \\\"\\\"\\\"Return the original highest matching version string, or None.\\\"\\\"\\\"\n    alternatives = _compile(rng)\n    best, best_version = None, None\n    for original in versions:\n        version = _version(original)\n        if _satisfies(version, alternatives) and (best_version is None or _cmp(version, best_version) > 0):\n            best, best_version = original, version\n    return best\nPY\"", "aggregated_output": "", "exit_code": 0, "status": "completed"}}
{"type": "item.completed", "item": {"id": "item_4", "type": "agent_message", "text": "The implementation is in place. It tracks explicit prerelease comparators separately from generated `-0` bounds so those bounds cannot accidentally admit prereleases. I\u2019ll now check range expansion, invalid inputs, and version ordering.\n"}}
{"type": "item.started", "item": {"id": "item_5", "type": "command_execution", "command": "/bin/bash -lc \"cat > test_semrange.py <<'PY'\nimport unittest\n\nfrom semrange import compare, satisfies, max_satisfying\n\n\nclass SemrangeTests(unittest.TestCase):\n    def test_precedence(self):\n        ordered = ['1.0.0-alpha', '1.0.0-alpha.1', '1.0.0-alpha.beta',\n                   '1.0.0-beta', '1.0.0-beta.2', '1.0.0-beta.11',\n                   '1.0.0-rc.1', '1.0.0']\n        for i, a in enumerate(ordered):\n            for j, b in enumerate(ordered):\n                self.assertEqual(compare(a, b), (i > j) - (i < j))\n        self.assertEqual(compare('v1.2.3+foo', '=1.2.3+bar'), 0)\n\n    def test_expansions(self):\n        cases = [\n            ('1.x', '>=1.0.0 <2.0.0-0'),\n            ('1.2.x', '>=1.2.0 <1.3.0-0'),\n            ('>1', '>=2.0.0'), ('<=1.2', '<1.3.0-0'),\n            ('<1.2', '<1.2.0-0'), ('>=1.2', '>=1.2.0'),\n            ('>1.2', '>=1.3.0'),\n            ('~1.2.3', '>=1.2.3 <1.3.0-0'),\n            ('~1.2', '>=1.2.0 <1.3.0-0'),\n            ('~1', '>=1.0.0 <2.0.0-0'),\n            ('\"'^1.2.3'\"', '>=1.2.3 <2.0.0-0'),\n            ('\"'^0.2.3'\"', '>=0.2.3 <0.3.0-0'),\n            ('\"'^0.0.3'\"', '>=0.0.3 <0.0.4-0'),\n            ('\"'^1.2'\"', '>=1.2.0 <2.0.0-0'),\n            ('\"'^0.0'\"', '>=0.0.0 <0.1.0-0'),\n            ('\"'^0'\"', '>=0.0.0 <1.0.0-0'),\n            ('1.2.3 - 2.3', '>=1.2.3 <2.4.0-0'),\n            ('1.2 - 2', '>=1.2.0 <3.0.0-0'),\n        ]\n        for short, expanded in cases:\n            for major in range(4):\n                for minor in range(5):\n                    for patch in range(5):\n                        version = f'{major}.{minor}.{patch}'\n                        with self.subTest(range=short, version=version):\n                            self.assertEqual(satisfies(version, short), satisfies(version, expanded))\n\n    def test_prerelease_admission(self):\n        self.assertTrue(satisfies('1.2.3-beta.2', '>1.2.3-beta.1 <1.3.0'))\n        self.assertFalse(satisfies('1.2.4-beta', '>1.2.3-beta.1 <1.3.0'))\n        self.assertFalse(satisfies('1.3.0-rc', '\"'^1.2'\"'))\n        self.assertFalse(satisfies('1.3.0-0', '\"'^1.2 || >=2.0.0'\"'))\n        self.assertFalse(satisfies('1.2.3-beta', '>=1.2.3-beta <1.2.3-beta || *'))\n        self.assertTrue(satisfies('1.2.3-beta.2', '\"'^1.2.3-beta.1'\"'))\n        self.assertTrue(satisfies('1.2.3-beta', '1.2.3-alpha - 1.2.3'))\n        for rng in ('', '*', 'x', 'X', '1', '1.2', '~1.2', '\"'^1.2'\"'):\n            self.assertFalse(satisfies('1.2.3-beta', rng))\n\n    def test_whitespace_alternatives_and_max(self):\n        self.assertTrue(satisfies('1.2.3', '>= 1.2.0 < 2.0.0 || 3.x'))\n        self.assertTrue(satisfies('3.2.3', '>= 1.2.0 < 2.0.0 || 3.x'))\n        self.assertEqual(max_satisfying(['v1.2.3+a', '1.2.3+b', '2.0.0'], '1'), 'v1.2.3+a')\n        self.assertIsNone(max_satisfying(['1.0.0-beta'], '*'))\n        self.assertIsNone(max_satisfying([], '*'))\n\n    def test_invalid(self):\n        for version in ('1', '1.2', '01.2.3', '1.2.3-01', '1.2.3+', '1.2.3-a_1', '[REDACTED:ipv4]'):\n            with self.subTest(version=version), self.assertRaises(ValueError):\n                compare(version, '1.0.0')\n        for rng in ('garbage', '[REDACTED:ipv4]', '>=', '1.2 || rubbish', '1.2 | 2', '\"'^~1'\"', '1..2'):\n            with self.subTest(range=rng), self.assertRaises(ValueError):\n                satisfies('1.2.3', rng)\n        with self.assertRaises(ValueError):\n            max_satisfying([], 'invalid')\n\n\nif __name__ == '__main__':\n    unittest.main()\nPY\npython -m unittest -v\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_5", "type": "command_execution", "command": "/bin/bash -lc \"cat > test_semrange.py <<'PY'\nimport unittest\n\nfrom semrange import compare, satisfies, max_satisfying\n\n\nclass SemrangeTests(unittest.TestCase):\n    def test_precedence(self):\n        ordered = ['1.0.0-alpha', '1.0.0-alpha.1', '1.0.0-alpha.beta',\n                   '1.0.0-beta', '1.0.0-beta.2', '1.0.0-beta.11',\n                   '1.0.0-rc.1', '1.0.0']\n        for i, a in enumerate(ordered):\n            for j, b in enumerate(ordered):\n                self.assertEqual(compare(a, b), (i > j) - (i < j))\n        self.assertEqual(compare('v1.2.3+foo', '=1.2.3+bar'), 0)\n\n    def test_expansions(self):\n        cases = [\n            ('1.x', '>=1.0.0 <2.0.0-0'),\n            ('1.2.x', '>=1.2.0 <1.3.0-0'),\n            ('>1', '>=2.0.0'), ('<=1.2', '<1.3.0-0'),\n            ('<1.2', '<1.2.0-0'), ('>=1.2', '>=1.2.0'),\n            ('>1.2', '>=1.3.0'),\n            ('~1.2.3', '>=1.2.3 <1.3.0-0'),\n            ('~1.2', '>=1.2.0 <1.3.0-0'),\n            ('~1', '>=1.0.0 <2.0.0-0'),\n            ('\"'^1.2.3'\"', '>=1.2.3 <2.0.0-0'),\n            ('\"'^0.2.3'\"', '>=0.2.3 <0.3.0-0'),\n            ('\"'^0.0.3'\"', '>=0.0.3 <0.0.4-0'),\n            ('\"'^1.2'\"', '>=1.2.0 <2.0.0-0'),\n            ('\"'^0.0'\"', '>=0.0.0 <0.1.0-0'),\n            ('\"'^0'\"', '>=0.0.0 <1.0.0-0'),\n            ('1.2.3 - 2.3', '>=1.2.3 <2.4.0-0'),\n            ('1.2 - 2', '>=1.2.0 <3.0.0-0'),\n        ]\n        for short, expanded in cases:\n            for major in range(4):\n                for minor in range(5):\n                    for patch in range(5):\n                        version = f'{major}.{minor}.{patch}'\n                        with self.subTest(range=short, version=version):\n                            self.assertEqual(satisfies(version, short), satisfies(version, expanded))\n\n    def test_prerelease_admission(self):\n        self.assertTrue(satisfies('1.2.3-beta.2', '>1.2.3-beta.1 <1.3.0'))\n        self.assertFalse(satisfies('1.2.4-beta', '>1.2.3-beta.1 <1.3.0'))\n        self.assertFalse(satisfies('1.3.0-rc', '\"'^1.2'\"'))\n        self.assertFalse(satisfies('1.3.0-0', '\"'^1.2 || >=2.0.0'\"'))\n        self.assertFalse(satisfies('1.2.3-beta', '>=1.2.3-beta <1.2.3-beta || *'))\n        self.assertTrue(satisfies('1.2.3-beta.2', '\"'^1.2.3-beta.1'\"'))\n        self.assertTrue(satisfies('1.2.3-beta', '1.2.3-alpha - 1.2.3'))\n        for rng in ('', '*', 'x', 'X', '1', '1.2', '~1.2', '\"'^1.2'\"'):\n            self.assertFalse(satisfies('1.2.3-beta', rng))\n\n    def test_whitespace_alternatives_and_max(self):\n        self.assertTrue(satisfies('1.2.3', '>= 1.2.0 < 2.0.0 || 3.x'))\n        self.assertTrue(satisfies('3.2.3', '>= 1.2.0 < 2.0.0 || 3.x'))\n        self.assertEqual(max_satisfying(['v1.2.3+a', '1.2.3+b', '2.0.0'], '1'), 'v1.2.3+a')\n        self.assertIsNone(max_satisfying(['1.0.0-beta'], '*'))\n        self.assertIsNone(max_satisfying([], '*'))\n\n    def test_invalid(self):\n        for version in ('1', '1.2', '01.2.3', '1.2.3-01', '1.2.3+', '1.2.3-a_1', '[REDACTED:ipv4]'):\n            with self.subTest(version=version), self.assertRaises(ValueError):\n                compare(version, '1.0.0')\n        for rng in ('garbage', '[REDACTED:ipv4]', '>=', '1.2 || rubbish', '1.2 | 2', '\"'^~1'\"', '1..2'):\n            with self.subTest(range=rng), self.assertRaises(ValueError):\n                satisfies('1.2.3', rng)\n        with self.assertRaises(ValueError):\n            max_satisfying([], 'invalid')\n\n\nif __name__ == '__main__':\n    unittest.main()\nPY\npython -m unittest -v\"", "aggregated_output": "/bin/bash: line 76: python: command not found\n", "exit_code": 127, "status": "failed"}}
{"type": "item.started", "item": {"id": "item_6", "type": "command_execution", "command": "/bin/bash -lc 'python3 -m unittest -v'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_6", "type": "command_execution", "command": "/bin/bash -lc 'python3 -m unittest -v'", "aggregated_output": "test_expansions (test_semrange.SemrangeTests.test_expansions) ... ok\ntest_invalid (test_semrange.SemrangeTests.test_invalid) ... ok\ntest_precedence (test_semrange.SemrangeTests.test_precedence) ... ok\ntest_prerelease_admission (test_semrange.SemrangeTests.test_prerelease_admission) ... ok\ntest_whitespace_alternatives_and_max (test_semrange.SemrangeTests.test_whitespace_alternatives_and_max) ... ok\n\n----------------------------------------------------------------------\nRan 5 tests in 0.062s\n\nOK\n", "exit_code": 0, "status": "completed"}}
{"type": "item.completed", "item": {"id": "item_7", "type": "agent_message", "text": "Implemented `compare`, `satisfies`, and `max_satisfying` in `semrange.py`, including range expansion, prerelease admission per alternative, and validation.\n\nAdded regression tests. All pass with `python3 -m unittest -v`."}}
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