GPT-6.1 Sol (effort default (no reasoning-effort override) · thinking on) on Make invoice maths exact: half-up line rounding, per-rate VAT, largest-remainder allocation, banker's FX rounding
OGPT-6.1 Soldefault · thinking on · Codex CLI 0.163.0 (codex exec --json) · cloud · 2026-10-19 · by @bobsiopener
- Estimated cost
- $0.07
- Wall time
- 50s
- Human step-ins
- 0
- Outcome
- Pass
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Summary
Exact prompt
# Task: make the invoice maths exact `money.py` uses binary floats and produces off-by-a-cent results. Fix it so these rules hold exactly (inputs and outputs are decimal strings; keep the function names and signatures): **All functions:** every returned amount is a string with exactly the target currency's decimals (e.g. "0.00", "-1.50", "1200" for JPY, "1.001" for BHD). Never output a negative zero such as "-0.00": a zero is always unsigned. `currency`/`to_currency` default to EUR where shown. **invoice(lines, currency)** - Line net = price x qty x (1 - discount_pct/100), rounded **half-up** (away from zero on .5) to the currency's decimals (EUR/USD 2, JPY 0, BHD 3). `qty` may be fractional, `discount_pct` is optional (default 0). Negative prices (credit lines) are allowed: half-up means 0.5 rounds away from zero for them too. - `net` = sum of rounded line nets. VAT is computed **per VAT rate** on that rate's summed rounded nets and rounded half-up. `vat` maps each rate string exactly as given (e.g. "20", "5.5") to its amount, in first-appearance order. `gross` = net + sum of VAT amounts. **allocate(amount, weights, currency)** - Split `amount` in proportion to non-negative integer `weights` (at least one positive) so that the parts sum **exactly** to amount: floor each exact share to the smallest unit (toward negative infinity for negative amounts — i.e. compute on the absolute value and re-apply the sign), then hand out remaining smallest units one each to the parts with the largest remainders; ties (equal remainders) go to the lower index. Example: `allocate("0.05", [3, 7])` -> `["0.02", "0.03"]` (exact shares 1.5 and 3.5 cents, equal remainders, the extra cent goes to index 0). Zero weight gets zero. Raise `ValueError` if all weights are 0. **convert(amount, rate, to_currency)** - amount x rate, rounded **half-even** (banker's) to the target decimals. Standard library only. No network.
Float classics (1.005, 2.675), half-up for negatives, VAT on grouped rounded nets, -0.00 suppression, 0/2/3-decimal currencies, deterministic largest-remainder tie-breaks and half-even conversion all have exact expected strings. Original benchmark task written for usecaserank.com. Headless, offline run on a reproducible fixture. Cost shown is a list-price API-equivalent estimate (run on a ChatGPT subscription, not billed).
Success criteria: 1. All 9 hidden unittest cases pass: half-up line rounding incl. float traps, discount + fractional qty, VAT grouping and order, credit lines and no '-0.00', JPY/BHD decimals, empty invoice, allocation (ties, zero weights, negatives, ValueError), allocation sums exactly, half-even conversion.
Setup notes: Use Case Scout batch6 case f04-money-precision (offline fixture). Prepared with batch6/prepare.sh on the shared box; only TASK.md + starting files were copied to the agent machine, hidden key/tests stayed on the box. Prompt = TASK.md verbatim on stdin. Flags: --json -s workspace-write --skip-git-repo-check --ephemeral --ignore-user-config --ignore-rules -C <workdir>. Scored on the box with the scout's scorer: `python score.py WORKDIR KEYDIR`. Single run, no retries. User-level AGENTS.md (846 bytes, sha256 83ec4fe50da8) may have been in context; --ignore-user-config does not document excluding it. Serving model not confirmed: requested via -m; the event log does not echo the serving model id. Price source is secondary (pricing.json verification='secondary', https://www.actuia.com/en/news/ai-api-pricing-in-october-2026-050-to-50-for-output/), not an official OpenAI price page. Score: 9/9. Cost is an ESTIMATE: measured tokens x pricing.json list price (ChatGPT plan, nothing billed); input_tokens include cached reads; output_tokens include reasoning tokens. Tool calls 6 (2 failed, recovered). Single run.
Estimated cost List-price estimate; not actually billed.
Metrics
- Estimated cost
- $0.07
- Wall time
- 50s
- Human step-ins
- 0
- Turns
- 1
| Model | Input tok | Output tok | Cost |
|---|---|---|---|
| OGPT-6.1 Solopenai/gpt-6.1-soleffort default (no reasoning-effort override) · thinking on | 126,968 | 3,625 | $0.07 |
Reproduce this run
- Use the use case prompt on the use case page.
- Same setup: GPT-6.1 Sol (openai/gpt-6.1-sol, effort default (no reasoning-effort override) · thinking on) via
Codex CLI 0.163.0 (codex exec --json), cloud. - It counts as a success only if it meets every success criterion: 1. All 9 hidden unittest cases pass: half-up line rounding incl. float traps, discount + fractional qty, VAT grouping and order, credit lines and no '-0.00', JPY/BHD decimals, empty invoice, allocation (ties, zero weights, negatives, ValueError), allocation sums exactly, half-even conversion.
- Log model, tokens, wall time, human step-ins and the evidence log, then submit it as a reproduction. A different model? Submit a head-to-head rerun.
How runs are scored: Methodology.
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Automated checks
Trust 80% comes from these checks (how Trust % works).
- Run date is not in the future : passed
- Model is in the dated pricing table : passed
- Cost recomputed from tokens matches : passed
- Cached tokens are consistent : passed
- Output throughput is plausible : passed
- Autonomy matches step-ins : passed
- Step-ins do not exceed turns : passed
- Retries agree with first-try result : passed
- Evidence log SHA-256 matches : passed
- Evidence log is substantial : passed
Evidence log
{"type": "thread.started", "thread_id": "01a154fd-fe0d-7860-9208-0f9b5d6ce238"}
{"type": "turn.started"}
{"type": "item.completed", "item": {"id": "item_0", "type": "agent_message", "text": "I\u2019ll inspect `money.py` and the existing tests, replace the float calculations with exact arithmetic, and verify the rounding and allocation rules.\n"}}
{"type": "item.started", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc \"pwd && rg --files -g 'AGENTS.md' -g '*money*' -g '*test*' -g 'pyproject.toml'\"", "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 '*money*' -g '*test*' -g 'pyproject.toml'\"", "aggregated_output": "/home/bob/usecase-runs/f04/work\nmoney.py\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc 'cat money.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 money.py; ls -la'", "aggregated_output": "\"\"\"Invoice maths. Amounts are strings like \"19.99\" in and out.\"\"\"\nDECIMALS = {\"EUR\": 2, \"USD\": 2, \"JPY\": 0, \"BHD\": 3}\n\ndef invoice(lines, currency=\"EUR\"):\n \"\"\"lines: [{\"price\": \"2.675\", \"qty\": \"3\", \"discount_pct\": \"10\", \"vat\": \"20\"}, ...]\"\"\"\n d = DECIMALS[currency]\n groups = {}\n net_total = 0.0\n for l in lines:\n net = float(l[\"price\"]) * float(l[\"qty\"]) * (1 - float(l.get(\"discount_pct\", 0)) / 100)\n net = round(net, d)\n net_total += net\n groups[l[\"vat\"]] = groups.get(l[\"vat\"], 0) + net\n vat = {r: round(v * float(r) / 100, d) for r, v in groups.items()}\n vat_total = sum(vat.values())\n fmt = lambda x: f\"{x:.{d}f}\"\n return {\"net\": fmt(net_total), \"vat\": {r: fmt(v) for r, v in vat.items()}, \"gross\": fmt(net_total + vat_total)}\n\ndef allocate(amount, weights, currency=\"EUR\"):\n \"\"\"Split amount by weights; parts must sum exactly to amount.\"\"\"\n d = DECIMALS[currency]\n tot = sum(weights)\n parts = [round(float(amount) * w / tot, d) for w in weights]\n return [f\"{p:.{d}f}\" for p in parts]\n\ndef convert(amount, rate, to_currency):\n return f\"{float(amount) * float(rate):.{DECIMALS[to_currency]}f}\"\ntotal 16\ndrwxr-xr-x 6 bob bob 4096 Oct 19 12:28 .\ndrwxrwxr-x 3 bob bob 4096 Oct 19 12:28 ..\ndr-xr-xr-x 2 bob bob 40 Oct 19 12:28 .agents\ndr-xr-xr-x 2 bob bob 40 Oct 19 12:28 .aws\ndr-xr-xr-x 2 bob bob 40 Oct 19 12:28 .codex\ndr-xr-xr-x 2 bob bob 40 Oct 19 12:28 .git\n-rw-r--r-- 1 bob bob 1926 Oct 19 12:27 TASK.md\n-rw-r--r-- 1 bob bob 1172 Oct 19 12:27 money.py\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc 'cat TASK.md'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc 'cat TASK.md'", "aggregated_output": "# Task: make the invoice maths exact\n`money.py` uses binary floats and produces off-by-a-cent results. Fix it so these rules hold exactly (inputs and outputs are decimal strings; keep the function names and signatures):\n**All functions:** every returned amount is a string with exactly the target currency's decimals (e.g. \"0.00\", \"-1.50\", \"1200\" for JPY, \"1.001\" for BHD). Never output a negative zero such as \"-0.00\": a zero is always unsigned. `currency`/`to_currency` default to EUR where shown.\n**invoice(lines, currency)**\n- Line net = price x qty x (1 - discount_pct/100), rounded **half-up** (away from zero on .5) to the currency's decimals (EUR/USD 2, JPY 0, BHD 3). `qty` may be fractional, `discount_pct` is optional (default 0). Negative prices (credit lines) are allowed: half-up means 0.5 rounds away from zero for them too.\n- `net` = sum of rounded line nets. VAT is computed **per VAT rate** on that rate's summed rounded nets and rounded half-up. `vat` maps each rate string exactly as given (e.g. \"20\", \"5.5\") to its amount, in first-appearance order. `gross` = net + sum of VAT amounts.\n**allocate(amount, weights, currency)**\n- Split `amount` in proportion to non-negative integer `weights` (at least one positive) so that the parts sum **exactly** to amount: floor each exact share to the smallest unit (toward negative infinity for negative amounts \u2014 i.e. compute on the absolute value and re-apply the sign), then hand out remaining smallest units one each to the parts with the largest remainders; ties (equal remainders) go to the lower index. Example: `allocate(\"0.05\", [3, 7])` -> `[\"0.02\", \"0.03\"]` (exact shares 1.5 and 3.5 cents, equal remainders, the extra cent goes to index 0). Zero weight gets zero. Raise `ValueError` if all weights are 0.\n**convert(amount, rate, to_currency)**\n- amount x rate, rounded **half-even** (banker's) to the target decimals.\nStandard library only. No network.\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"cat > money.py <<'PY'\n\\\"\\\"\\\"Exact invoice maths. Decimal amounts are strings in and out.\\\"\\\"\\\"\n\nfrom fractions import Fraction\n\n\nDECIMALS = {\\\"EUR\\\": 2, \\\"USD\\\": 2, \\\"JPY\\\": 0, \\\"BHD\\\": 3}\n\n\ndef _round_units(value, scale, half_even=False):\n \\\"\\\"\\\"Round an exact value to integer currency units, symmetrically.\\\"\\\"\\\"\n scaled = value * scale\n units, remainder = divmod(abs(scaled.numerator), scaled.denominator)\n comparison = 2 * remainder - scaled.denominator\n if comparison > 0 or (comparison == 0 and (not half_even or units % 2)):\n units += 1\n return -units if scaled < 0 else units\n\n\ndef _format(units, decimals):\n \\\"\\\"\\\"Format integer units without ever emitting a signed zero.\\\"\\\"\\\"\n sign = \\\"-\\\" if units < 0 else \\\"\\\"\n whole, fraction = divmod(abs(units), 10 ** decimals)\n if not decimals:\n return f\\\"{sign}{whole}\\\"\n return f\\\"{sign}{whole}.{fraction:0{decimals}d}\\\"\n\n\ndef invoice(lines, currency=\\\"EUR\\\"):\n \\\"\\\"\\\"Round line nets half-up, then calculate VAT on each rate's net.\\\"\\\"\\\"\n decimals = DECIMALS[currency]\n scale = 10 ** decimals\n groups = {}\n net_total = 0\n for line in lines:\n net = (Fraction(line[\\\"price\\\"]) * Fraction(line[\\\"qty\\\"])\n * (1 - Fraction(line.get(\\\"discount_pct\\\", 0)) / 100))\n units = _round_units(net, scale)\n net_total += units\n rate = line[\\\"vat\\\"]\n groups[rate] = groups.get(rate, 0) + units\n vat = {rate: _round_units(units * Fraction(rate) / 100, 1)\n for rate, units in groups.items()}\n return {\n \\\"net\\\": _format(net_total, decimals),\n \\\"vat\\\": {rate: _format(units, decimals) for rate, units in vat.items()},\n \\\"gross\\\": _format(net_total + sum(vat.values()), decimals),\n }\n\n\ndef allocate(amount, weights, currency=\\\"EUR\\\"):\n \\\"\\\"\\\"Split whole currency units using largest remainders and index ties.\n\n Amount must be representable in the currency's smallest unit.\n Negative amounts use the same allocation as their absolute value.\n \\\"\\\"\\\"\n decimals = DECIMALS[currency]\n weights = list(weights)\n if any(not isinstance(weight, int) or weight < 0 for weight in weights):\n raise ValueError(\\\"weights must be non-negative integers\\\")\n total = sum(weights)\n if not total:\n raise ValueError(\\\"at least one weight must be positive\\\")\n scaled = Fraction(amount) * 10 ** decimals\n if scaled.denominator \"'!= 1:\n raise ValueError(\"amount must be a whole number of currency units\")\n units = abs(scaled.numerator)\n shares = [divmod(units * weight, total) for weight in weights]\n parts = [share[0] for share in shares]\n remaining = units - sum(parts)\n order = sorted(range(len(weights)), key=lambda i: (-shares[i][1], i))\n for index in order[:remaining]:\n parts[index] += 1\n sign = -1 if scaled < 0 else 1\n return [_format(sign * part, decimals) for part in parts]\n\n\ndef convert(amount, rate, to_currency):\n \"\"\"Convert an amount, rounding half-even to the target currency.\"\"\"\n decimals = DECIMALS[to_currency]\n units = _round_units(Fraction(amount) * Fraction(rate),\n 10 ** decimals, half_even=True)\n return _format(units, decimals)\nPY'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"cat > money.py <<'PY'\n\\\"\\\"\\\"Exact invoice maths. Decimal amounts are strings in and out.\\\"\\\"\\\"\n\nfrom fractions import Fraction\n\n\nDECIMALS = {\\\"EUR\\\": 2, \\\"USD\\\": 2, \\\"JPY\\\": 0, \\\"BHD\\\": 3}\n\n\ndef _round_units(value, scale, half_even=False):\n \\\"\\\"\\\"Round an exact value to integer currency units, symmetrically.\\\"\\\"\\\"\n scaled = value * scale\n units, remainder = divmod(abs(scaled.numerator), scaled.denominator)\n comparison = 2 * remainder - scaled.denominator\n if comparison > 0 or (comparison == 0 and (not half_even or units % 2)):\n units += 1\n return -units if scaled < 0 else units\n\n\ndef _format(units, decimals):\n \\\"\\\"\\\"Format integer units without ever emitting a signed zero.\\\"\\\"\\\"\n sign = \\\"-\\\" if units < 0 else \\\"\\\"\n whole, fraction = divmod(abs(units), 10 ** decimals)\n if not decimals:\n return f\\\"{sign}{whole}\\\"\n return f\\\"{sign}{whole}.{fraction:0{decimals}d}\\\"\n\n\ndef invoice(lines, currency=\\\"EUR\\\"):\n \\\"\\\"\\\"Round line nets half-up, then calculate VAT on each rate's net.\\\"\\\"\\\"\n decimals = DECIMALS[currency]\n scale = 10 ** decimals\n groups = {}\n net_total = 0\n for line in lines:\n net = (Fraction(line[\\\"price\\\"]) * Fraction(line[\\\"qty\\\"])\n * (1 - Fraction(line.get(\\\"discount_pct\\\", 0)) / 100))\n units = _round_units(net, scale)\n net_total += units\n rate = line[\\\"vat\\\"]\n groups[rate] = groups.get(rate, 0) + units\n vat = {rate: _round_units(units * Fraction(rate) / 100, 1)\n for rate, units in groups.items()}\n return {\n \\\"net\\\": _format(net_total, decimals),\n \\\"vat\\\": {rate: _format(units, decimals) for rate, units in vat.items()},\n \\\"gross\\\": _format(net_total + sum(vat.values()), decimals),\n }\n\n\ndef allocate(amount, weights, currency=\\\"EUR\\\"):\n \\\"\\\"\\\"Split whole currency units using largest remainders and index ties.\n\n Amount must be representable in the currency's smallest unit.\n Negative amounts use the same allocation as their absolute value.\n \\\"\\\"\\\"\n decimals = DECIMALS[currency]\n weights = list(weights)\n if any(not isinstance(weight, int) or weight < 0 for weight in weights):\n raise ValueError(\\\"weights must be non-negative integers\\\")\n total = sum(weights)\n if not total:\n raise ValueError(\\\"at least one weight must be positive\\\")\n scaled = Fraction(amount) * 10 ** decimals\n if scaled.denominator \"'!= 1:\n raise ValueError(\"amount must be a whole number of currency units\")\n units = abs(scaled.numerator)\n shares = [divmod(units * weight, total) for weight in weights]\n parts = [share[0] for share in shares]\n remaining = units - sum(parts)\n order = sorted(range(len(weights)), key=lambda i: (-shares[i][1], i))\n for index in order[:remaining]:\n parts[index] += 1\n sign = -1 if scaled < 0 else 1\n return [_format(sign * part, decimals) for part in parts]\n\n\ndef convert(amount, rate, to_currency):\n \"\"\"Convert an amount, rounding half-even to the target currency.\"\"\"\n decimals = DECIMALS[to_currency]\n units = _round_units(Fraction(amount) * Fraction(rate),\n 10 ** decimals, half_even=True)\n return _format(units, decimals)\nPY'", "aggregated_output": "", "exit_code": 0, "status": "completed"}}
{"type": "item.completed", "item": {"id": "item_5", "type": "agent_message", "text": "The calculations now use exact rational arithmetic and integer currency units. I\u2019m checking credit-line rounding, VAT grouping, allocation ties, and half-even conversion across all four currencies.\n"}}
{"type": "item.started", "item": {"id": "item_6", "type": "command_execution", "command": "/bin/bash -lc \"cat > test_money.py <<'PY'\nimport unittest\nfrom decimal import Decimal\nfrom itertools import product\n\nfrom money import allocate, convert, invoice\n\n\nclass MoneyTests(unittest.TestCase):\n def test_invoice_line_rounding_and_discount(self):\n self.assertEqual(invoice([\n {\\\"price\\\": \\\"2.675\\\", \\\"qty\\\": \\\"1\\\", \\\"vat\\\": \\\"20\\\"},\n {\\\"price\\\": \\\"-0.005\\\", \\\"qty\\\": \\\"1\\\", \\\"vat\\\": \\\"20\\\"},\n {\\\"price\\\": \\\"10\\\", \\\"qty\\\": \\\"0.5\\\", \\\"discount_pct\\\": \\\"10\\\", \\\"vat\\\": \\\"5.5\\\"},\n ]), {\\\"net\\\": \\\"7.17\\\", \\\"vat\\\": {\\\"20\\\": \\\"0.53\\\", \\\"5.5\\\": \\\"0.25\\\"}, \\\"gross\\\": \\\"7.95\\\"})\n\n def test_vat_is_rounded_per_group(self):\n result = invoice([{\\\"price\\\": \\\"0.03\\\", \\\"qty\\\": \\\"1\\\", \\\"vat\\\": \\\"20\\\"}] * 2)\n self.assertEqual(result, {\\\"net\\\": \\\"0.06\\\", \\\"vat\\\": {\\\"20\\\": \\\"0.01\\\"}, \\\"gross\\\": \\\"0.07\\\"})\n credit = invoice([{\\\"price\\\": \\\"-0.025\\\", \\\"qty\\\": \\\"1\\\", \\\"vat\\\": \\\"50\\\"}])\n self.assertEqual(credit, {\\\"net\\\": \\\"-0.03\\\", \\\"vat\\\": {\\\"50\\\": \\\"-0.02\\\"}, \\\"gross\\\": \\\"-0.05\\\"})\n\n def test_rate_spelling_and_order(self):\n rates = [\\\"5.5\\\", \\\"20\\\", \\\"20.0\\\", \\\"5.5\\\"]\n result = invoice([{\\\"price\\\": \\\"1\\\", \\\"qty\\\": \\\"1\\\", \\\"vat\\\": r} for r in rates])\n self.assertEqual(list(result[\\\"vat\\\"]), [\\\"5.5\\\", \\\"20\\\", \\\"20.0\\\"])\n\n def test_currency_precision_and_zero(self):\n for currency, value, expected, zero in [\n (\\\"EUR\\\", \\\"-0.004\\\", \\\"0.00\\\", \\\"0.00\\\"),\n (\\\"USD\\\", \\\"2.675\\\", \\\"2.68\\\", \\\"0.00\\\"),\n (\\\"JPY\\\", \\\"-1.5\\\", \\\"-2\\\", \\\"0\\\"),\n (\\\"BHD\\\", \\\"1.0005\\\", \\\"1.001\\\", \\\"0.000\\\"),\n ]:\n with self.subTest(currency=currency):\n result = invoice([{\\\"price\\\": value, \\\"qty\\\": \\\"1\\\", \\\"vat\\\": \\\"0\\\"}], currency)\n self.assertEqual(result[\\\"net\\\"], expected)\n self.assertEqual(result[\\\"vat\\\"][\\\"0\\\"], zero)\n self.assertEqual(invoice([], currency)[\\\"gross\\\"], zero)\n self.assertEqual(convert(\\\"-0\\\", \\\"1\\\", currency), zero)\n\n def test_allocation_ties_and_sign(self):\n self.assertEqual(allocate(\\\"0.05\\\", [3, 7]), [\\\"0.02\\\", \\\"0.03\\\"])\n self.assertEqual(allocate(\\\"-0.05\\\", [3, 7]), [\\\"-0.02\\\", \\\"-0.03\\\"])\n self.assertEqual(allocate(\\\"0.01\\\", [0, 1, 1]), [\\\"0.00\\\", \\\"0.01\\\", \\\"0.00\\\"])\n for weights in ([], [0, 0], [-1, 2], [1.5, 2]):\n with self.assertRaises(ValueError):\n allocate(\\\"1.00\\\", weights)\n\n def test_allocation_conserves_amount(self):\n for currency, decimals in [(\\\"EUR\\\", 2), (\\\"USD\\\", 2), (\\\"JPY\\\", 0), (\\\"BHD\\\", 3)]:\n for weights in product(range(3), repeat=3):\n if not any(weights):\n continue\n for units in range(-12, 13):\n amount = Decimal(units).scaleb(-decimals)\n parts = allocate(str(amount), weights, currency)\n self.assertEqual(sum(map(Decimal, parts)), amount)\n for weight, part in zip(weights, parts):\n if weight == 0:\n self.assertEqual(Decimal(part), 0)\n\n def test_conversion_half_even_and_large_exact_values(self):\n for amount, expected in [(\\\"1.005\\\", \\\"1.00\\\"), (\\\"1.015\\\", \\\"1.02\\\"),\n (\\\"-1.005\\\", \\\"-1.00\\\"), (\\\"-1.015\\\", \\\"-1.02\\\"),\n (\\\"-0.005\\\", \\\"0.00\\\")]:\n self.assertEqual(convert(amount, \\\"1\\\", \\\"EUR\\\"), expected)\n self.assertEqual(convert(\\\"2.5\\\", \\\"1\\\", \\\"JPY\\\"), \\\"2\\\")\n self.assertEqual(convert(\\\"1.0015\\\", \\\"1\\\", \\\"BHD\\\"), \\\"1.002\\\")\n self.assertEqual(convert(\\\"123456789012345678901234567890.005\\\", \\\"1\\\", \\\"USD\\\"),\n \\\"123456789012345678901234567890.00\\\")\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_6", "type": "command_execution", "command": "/bin/bash -lc \"cat > test_money.py <<'PY'\nimport unittest\nfrom decimal import Decimal\nfrom itertools import product\n\nfrom money import allocate, convert, invoice\n\n\nclass MoneyTests(unittest.TestCase):\n def test_invoice_line_rounding_and_discount(self):\n self.assertEqual(invoice([\n {\\\"price\\\": \\\"2.675\\\", \\\"qty\\\": \\\"1\\\", \\\"vat\\\": \\\"20\\\"},\n {\\\"price\\\": \\\"-0.005\\\", \\\"qty\\\": \\\"1\\\", \\\"vat\\\": \\\"20\\\"},\n {\\\"price\\\": \\\"10\\\", \\\"qty\\\": \\\"0.5\\\", \\\"discount_pct\\\": \\\"10\\\", \\\"vat\\\": \\\"5.5\\\"},\n ]), {\\\"net\\\": \\\"7.17\\\", \\\"vat\\\": {\\\"20\\\": \\\"0.53\\\", \\\"5.5\\\": \\\"0.25\\\"}, \\\"gross\\\": \\\"7.95\\\"})\n\n def test_vat_is_rounded_per_group(self):\n result = invoice([{\\\"price\\\": \\\"0.03\\\", \\\"qty\\\": \\\"1\\\", \\\"vat\\\": \\\"20\\\"}] * 2)\n self.assertEqual(result, {\\\"net\\\": \\\"0.06\\\", \\\"vat\\\": {\\\"20\\\": \\\"0.01\\\"}, \\\"gross\\\": \\\"0.07\\\"})\n credit = invoice([{\\\"price\\\": \\\"-0.025\\\", \\\"qty\\\": \\\"1\\\", \\\"vat\\\": \\\"50\\\"}])\n self.assertEqual(credit, {\\\"net\\\": \\\"-0.03\\\", \\\"vat\\\": {\\\"50\\\": \\\"-0.02\\\"}, \\\"gross\\\": \\\"-0.05\\\"})\n\n def test_rate_spelling_and_order(self):\n rates = [\\\"5.5\\\", \\\"20\\\", \\\"20.0\\\", \\\"5.5\\\"]\n result = invoice([{\\\"price\\\": \\\"1\\\", \\\"qty\\\": \\\"1\\\", \\\"vat\\\": r} for r in rates])\n self.assertEqual(list(result[\\\"vat\\\"]), [\\\"5.5\\\", \\\"20\\\", \\\"20.0\\\"])\n\n def test_currency_precision_and_zero(self):\n for currency, value, expected, zero in [\n (\\\"EUR\\\", \\\"-0.004\\\", \\\"0.00\\\", \\\"0.00\\\"),\n (\\\"USD\\\", \\\"2.675\\\", \\\"2.68\\\", \\\"0.00\\\"),\n (\\\"JPY\\\", \\\"-1.5\\\", \\\"-2\\\", \\\"0\\\"),\n (\\\"BHD\\\", \\\"1.0005\\\", \\\"1.001\\\", \\\"0.000\\\"),\n ]:\n with self.subTest(currency=currency):\n result = invoice([{\\\"price\\\": value, \\\"qty\\\": \\\"1\\\", \\\"vat\\\": \\\"0\\\"}], currency)\n self.assertEqual(result[\\\"net\\\"], expected)\n self.assertEqual(result[\\\"vat\\\"][\\\"0\\\"], zero)\n self.assertEqual(invoice([], currency)[\\\"gross\\\"], zero)\n self.assertEqual(convert(\\\"-0\\\", \\\"1\\\", currency), zero)\n\n def test_allocation_ties_and_sign(self):\n self.assertEqual(allocate(\\\"0.05\\\", [3, 7]), [\\\"0.02\\\", \\\"0.03\\\"])\n self.assertEqual(allocate(\\\"-0.05\\\", [3, 7]), [\\\"-0.02\\\", \\\"-0.03\\\"])\n self.assertEqual(allocate(\\\"0.01\\\", [0, 1, 1]), [\\\"0.00\\\", \\\"0.01\\\", \\\"0.00\\\"])\n for weights in ([], [0, 0], [-1, 2], [1.5, 2]):\n with self.assertRaises(ValueError):\n allocate(\\\"1.00\\\", weights)\n\n def test_allocation_conserves_amount(self):\n for currency, decimals in [(\\\"EUR\\\", 2), (\\\"USD\\\", 2), (\\\"JPY\\\", 0), (\\\"BHD\\\", 3)]:\n for weights in product(range(3), repeat=3):\n if not any(weights):\n continue\n for units in range(-12, 13):\n amount = Decimal(units).scaleb(-decimals)\n parts = allocate(str(amount), weights, currency)\n self.assertEqual(sum(map(Decimal, parts)), amount)\n for weight, part in zip(weights, parts):\n if weight == 0:\n self.assertEqual(Decimal(part), 0)\n\n def test_conversion_half_even_and_large_exact_values(self):\n for amount, expected in [(\\\"1.005\\\", \\\"1.00\\\"), (\\\"1.015\\\", \\\"1.02\\\"),\n (\\\"-1.005\\\", \\\"-1.00\\\"), (\\\"-1.015\\\", \\\"-1.02\\\"),\n (\\\"-0.005\\\", \\\"0.00\\\")]:\n self.assertEqual(convert(amount, \\\"1\\\", \\\"EUR\\\"), expected)\n self.assertEqual(convert(\\\"2.5\\\", \\\"1\\\", \\\"JPY\\\"), \\\"2\\\")\n self.assertEqual(convert(\\\"1.0015\\\", \\\"1\\\", \\\"BHD\\\"), \\\"1.002\\\")\n self.assertEqual(convert(\\\"123456789012345678901234567890.005\\\", \\\"1\\\", \\\"USD\\\"),\n \\\"123456789012345678901234567890.00\\\")\n\n\nif __name__ == \\\"__main__\\\":\n unittest.main()\nPY\npython -m unittest -v\"", "aggregated_output": "/bin/bash: line 77: python: command not found\n", "exit_code": 127, "status": "failed"}}
{"type": "item.started", "item": {"id": "item_7", "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_7", "type": "command_execution", "command": "/bin/bash -lc 'python3 -m unittest -v'", "aggregated_output": "test_allocation_conserves_amount (test_money.MoneyTests.test_allocation_conserves_amount) ... ok\ntest_allocation_ties_and_sign (test_money.MoneyTests.test_allocation_ties_and_sign) ... ok\ntest_conversion_half_even_and_large_exact_values (test_money.MoneyTests.test_conversion_half_even_and_large_exact_values) ... ok\ntest_currency_precision_and_zero (test_money.MoneyTests.test_currency_precision_and_zero) ... ok\ntest_invoice_line_rounding_and_discount (test_money.MoneyTests.test_invoice_line_rounding_and_discount) ... ok\ntest_rate_spelling_and_order (test_money.MoneyTests.test_rate_spelling_and_order) ... ok\ntest_vat_is_rounded_per_group (test_money.MoneyTests.test_vat_is_rounded_per_group) ... ok\n\n----------------------------------------------------------------------\nRan 7 tests in 0.026s\n\nOK\n", "exit_code": 0, "status": "completed"}}
{"type": "item.completed", "item": {"id": "item_8", "type": "agent_message", "text": "Fixed [money.py](/home/bob/usecase-runs/f04/work/money.py) using exact arithmetic. Preserved function signatures, implemented the rounding and allocation rules, and eliminated negative zero.\n\nAdded regression tests; all 7 pass with `python3 -m unittest -v`."}}
{"type": "turn.completed", "usage": {"input_tokens": 126968, "cached_input_tokens": 113280, "cache_write_input_tokens": 0, "output_tokens": 3625, "reasoning_output_tokens": 92}}