GPT-6.1 Sol (effort default (no reasoning-effort override) · thinking on) on Refactor nested legacy pricing code + add a bulk-discount rule with exact behaviour preservation

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{"type": "item.completed", "item": {"id": "item_0", "type": "agent_message", "text": "I\u2019ll inspect the pricing rules, refactor them into small helpers, and add tests for legacy behavior and the bulk discount.\n"}}
{"type": "item.started", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc \"pwd; rg --files -g 'AGENTS.md' -g '*pricing*' -g 'pyproject.toml' -g 'pytest.ini'\"", "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 '*pricing*' -g 'pyproject.toml' -g 'pytest.ini'\"", "aggregated_output": "/home/bob/usecase-runs/batch/out/gpt-6.1-sol/138_c02/work\npricing.py\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc \"cat pricing.py; rg --files -g '\"'! .git'\"'\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc \"cat pricing.py; rg --files -g '\"'! .git'\"'\"", "aggregated_output": "# Legacy pricing engine. DO NOT change behaviour except where the new requirement says so.\ndef price(order):\n    total = 0\n    for it in order[\"items\"]:\n        if it[\"category\"] == \"books\":\n            if order[\"customer\"][\"tier\"] == \"gold\":\n                total += it[\"unit\"] * it[\"qty\"] * 0.9\n            else:\n                if order[\"customer\"][\"tier\"] == \"silver\":\n                    total += it[\"unit\"] * it[\"qty\"] * 0.95\n                else:\n                    total += it[\"unit\"] * it[\"qty\"]\n        else:\n            if it[\"category\"] == \"electronics\":\n                if order[\"customer\"][\"tier\"] == \"gold\":\n                    total += it[\"unit\"] * it[\"qty\"] * 0.97\n                else:\n                    total += it[\"unit\"] * it[\"qty\"]\n            else:\n                if order[\"customer\"][\"tier\"] == \"gold\":\n                    total += it[\"unit\"] * it[\"qty\"] * 0.95\n                else:\n                    if order[\"customer\"][\"tier\"] == \"silver\":\n                        total += it[\"unit\"] * it[\"qty\"] * 0.98\n                    else:\n                        total += it[\"unit\"] * it[\"qty\"]\n    if order.get(\"coupon\"):\n        if order[\"coupon\"] == \"SAVE10\":\n            if total >= 50:\n                total = total - 10\n        else:\n            if order[\"coupon\"] == \"SAVE20\":\n                if total >= 150:\n                    total = total * 0.8\n                else:\n                    if total >= 100:\n                        total = total * 0.9\n            else:\n                if order[\"coupon\"] == \"FREESHIP\":\n                    pass\n    ship = 0\n    if order[\"region\"] == \"EU\":\n        if total < 60:\n            ship = 6.5\n        if order.get(\"coupon\") == \"FREESHIP\":\n            ship = 0\n        tax = 0.2\n    else:\n        if order[\"region\"] == \"US\":\n            if total < 75:\n                ship = 8\n            else:\n                if order[\"customer\"][\"tier\"] != \"gold\":\n                    if total < 100:\n                        ship = 3\n            if order.get(\"coupon\") == \"FREESHIP\":\n                if total >= 25:\n                    ship = 0\n            tax = 0.07\n        else:\n            ship = 15\n            tax = 0\n    total = total + ship\n    total = total + total * tax if order[\"region\"] != \"US\" else total + (total - ship) * tax\n    return round(total, 2)\npricing.py\nTASK.md\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc 'cp pricing.py /tmp/pricing_legacy_138_c02.py; cat TASK.md; git status --short'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc 'cp pricing.py /tmp/pricing_legacy_138_c02.py; cat TASK.md; git status --short'", "aggregated_output": "# Task: refactor the legacy pricing engine and add one rule\n`pricing.py` has a deeply nested `price(order)` function. \n1. Refactor it so it is readable: no function may have nesting depth greater than 3 (if/for/while/with/try blocks), and the category/tier discounts must live in a data table, not if-chains. Behaviour must stay IDENTICAL for every order (outputs are compared to the old version on hundreds of random orders, rounded to cents).\n2. Add a new rule: **bulk discount** \u2014 any line item with qty >= 10 gets an extra 5% off that line, applied after the tier discount and before coupons. The bulk discount does NOT combine with coupon \"SAVE20\" (if SAVE20 is present, no bulk discount anywhere).\nKeep the signature `price(order) -> float`. Add tests in `test_pricing.py`. No network, no new dependencies.\nOrder shape: {\"customer\":{\"tier\":\"gold|silver|none\"},\"region\":\"EU|US|ROW\",\"coupon\":null|\"SAVE10\"|\"SAVE20\"|\"FREESHIP\",\"items\":[{\"category\":\"books|electronics|toys|garden\",\"unit\":float,\"qty\":int}]}\nfatal: not a git repository (or any of the parent directories): .git\n", "exit_code": 128, "status": "failed"}}
{"type": "item.started", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"cat > pricing.py <<'PY'\n\\\"\\\"\\\"Order pricing: line discounts, coupons, shipping, then regional tax.\\\"\\\"\\\"\n\nTIER_MULTIPLIERS = {\n    \\\"books\\\": {\\\"gold\\\": 0.9, \\\"silver\\\": 0.95},\n    \\\"electronics\\\": {\\\"gold\\\": 0.97},\n    \\\"toys\\\": {\\\"gold\\\": 0.95, \\\"silver\\\": 0.98},\n    \\\"garden\\\": {\\\"gold\\\": 0.95, \\\"silver\\\": 0.98},\n}\n\n\ndef _subtotal(order):\n    total = 0\n    tier = order[\\\"customer\\\"][\\\"tier\\\"]\n    bulk_allowed = order.get(\\\"coupon\\\") \"'!= \"SAVE20\"\n    for item in order[\"items\"]:\n        # Unknown categories retain the legacy toys/garden treatment.\n        discounts = TIER_MULTIPLIERS.get(item[\"category\"], TIER_MULTIPLIERS[\"toys\"])\n        line = item[\"unit\"] * item[\"qty\"]\n        if tier in discounts:\n            line *= discounts[tier]\n        if bulk_allowed and item[\"qty\"] >= 10:\n            line *= 0.95\n        total += line\n    return total\n\n\ndef _apply_coupon(total, coupon):\n    if coupon == \"SAVE10\" and total >= 50:\n        return total - 10\n    if coupon == \"SAVE20\":\n        if total >= 150:\n            return total * 0.8\n        if total >= 100:\n            return total * 0.9\n    return total\n\n\ndef _shipping(total, region, tier, coupon):\n    if region == \"EU\":\n        return 6.5 if total < 60 and coupon != \"FREESHIP\" else 0\n    if region != \"US\":\n        return 15\n    if coupon == \"FREESHIP\" and total >= 25:\n        return 0\n    if total < 75:\n        return 8\n    if tier != \"gold\" and total < 100:\n        return 3\n    return 0\n\n\ndef price(order) -> float:\n    \"\"\"Return the final price, rounded to cents.\"\"\"\n    coupon = order.get(\"coupon\")\n    total = _apply_coupon(_subtotal(order), coupon)\n    region = order[\"region\"]\n    ship = _shipping(total, region, order[\"customer\"][\"tier\"], coupon)\n    total = total + ship\n    if region == \"US\":\n        total = total + (total - ship) * 0.07\n    else:\n        tax = 0.2 if region == \"EU\" else 0\n        total = total + total * tax\n    return round(total, 2)\nPY'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"cat > pricing.py <<'PY'\n\\\"\\\"\\\"Order pricing: line discounts, coupons, shipping, then regional tax.\\\"\\\"\\\"\n\nTIER_MULTIPLIERS = {\n    \\\"books\\\": {\\\"gold\\\": 0.9, \\\"silver\\\": 0.95},\n    \\\"electronics\\\": {\\\"gold\\\": 0.97},\n    \\\"toys\\\": {\\\"gold\\\": 0.95, \\\"silver\\\": 0.98},\n    \\\"garden\\\": {\\\"gold\\\": 0.95, \\\"silver\\\": 0.98},\n}\n\n\ndef _subtotal(order):\n    total = 0\n    tier = order[\\\"customer\\\"][\\\"tier\\\"]\n    bulk_allowed = order.get(\\\"coupon\\\") \"'!= \"SAVE20\"\n    for item in order[\"items\"]:\n        # Unknown categories retain the legacy toys/garden treatment.\n        discounts = TIER_MULTIPLIERS.get(item[\"category\"], TIER_MULTIPLIERS[\"toys\"])\n        line = item[\"unit\"] * item[\"qty\"]\n        if tier in discounts:\n            line *= discounts[tier]\n        if bulk_allowed and item[\"qty\"] >= 10:\n            line *= 0.95\n        total += line\n    return total\n\n\ndef _apply_coupon(total, coupon):\n    if coupon == \"SAVE10\" and total >= 50:\n        return total - 10\n    if coupon == \"SAVE20\":\n        if total >= 150:\n            return total * 0.8\n        if total >= 100:\n            return total * 0.9\n    return total\n\n\ndef _shipping(total, region, tier, coupon):\n    if region == \"EU\":\n        return 6.5 if total < 60 and coupon != \"FREESHIP\" else 0\n    if region != \"US\":\n        return 15\n    if coupon == \"FREESHIP\" and total >= 25:\n        return 0\n    if total < 75:\n        return 8\n    if tier != \"gold\" and total < 100:\n        return 3\n    return 0\n\n\ndef price(order) -> float:\n    \"\"\"Return the final price, rounded to cents.\"\"\"\n    coupon = order.get(\"coupon\")\n    total = _apply_coupon(_subtotal(order), coupon)\n    region = order[\"region\"]\n    ship = _shipping(total, region, order[\"customer\"][\"tier\"], coupon)\n    total = total + ship\n    if region == \"US\":\n        total = total + (total - ship) * 0.07\n    else:\n        tax = 0.2 if region == \"EU\" else 0\n        total = total + total * tax\n    return round(total, 2)\nPY'", "aggregated_output": "", "exit_code": 0, "status": "completed"}}
{"type": "item.completed", "item": {"id": "item_5", "type": "agent_message", "text": "The refactor preserves the legacy order of coupon, shipping, and tax calculations. Bulk discounts now apply per line after tier discounts, with `SAVE20` disabling them even below its coupon threshold. I\u2019m checking legacy results and adding tests around the discount and shipping thresholds.\n"}}
{"type": "item.started", "item": {"id": "item_6", "type": "command_execution", "command": "/bin/bash -lc \"cat > test_pricing.py <<'PY'\n\\\"\\\"\\\"Run with python -m unittest -v (no third-party dependencies).\\\"\\\"\\\"\nimport ast\nimport hashlib\nimport inspect\nimport json\nimport random\nimport unittest\n\nimport pricing\n\n\ndef order(unit=10, qty=1, category=\\\"books\\\", tier=\\\"none\\\", region=\\\"ROW\\\", coupon=None):\n    return {\n        \\\"customer\\\": {\\\"tier\\\": tier}, \\\"region\\\": region, \\\"coupon\\\": coupon,\n        \\\"items\\\": [{\\\"category\\\": category, \\\"unit\\\": unit, \\\"qty\\\": qty}],\n    }\n\n\ndef legacy_orders():\n    \\\"\\\"\\\"Stable random orders where the new bulk rule cannot change results.\\\"\\\"\\\"\n    rng = random.Random(138)\n    for index in range(1200):\n        coupon = rng.choice([None, \\\"SAVE10\\\", \\\"SAVE20\\\", \\\"FREESHIP\\\"])\n        sample = order(tier=rng.choice([\\\"gold\\\", \\\"silver\\\", \\\"none\\\"]),\n                       region=rng.choice([\\\"EU\\\", \\\"US\\\", \\\"ROW\\\"]), coupon=coupon)\n        sample[\\\"items\\\"] = [\n            {\\\"category\\\": rng.choice([\\\"books\\\", \\\"electronics\\\", \\\"toys\\\", \\\"garden\\\"]),\n             \\\"unit\\\": rng.uniform(0, 120),\n             \\\"qty\\\": rng.randint(0, 30 if coupon == \\\"SAVE20\\\" else 9)}\n            for _ in range(rng.randint(0, 8))\n        ]\n        yield sample\n\n\nclass PricingTests(unittest.TestCase):\n    def test_legacy_regression(self):\n        # Digest recorded from the unmodified legacy engine for these 1,200 orders.\n        results = [pricing.price(sample) for sample in legacy_orders()]\n        digest = hashlib.sha256(json.dumps(results).encode()).hexdigest()\n        self.assertEqual(digest, \\\"LEGACY_DIGEST\\\")\n\n    def test_category_tier_discounts(self):\n        expected = {\n            \\\"books\\\": [105, 110, 115], \\\"electronics\\\": [112, 115, 115],\n            \\\"toys\\\": [110, 113, 115], \\\"garden\\\": [110, 113, 115],\n        }\n        for category, totals in expected.items():\n            for tier, total in zip([\\\"gold\\\", \\\"silver\\\", \\\"none\\\"], totals):\n                with self.subTest(category=category, tier=tier):\n                    self.assertEqual(pricing.price(order(100, category=category, tier=tier)), total)\n\n    def test_bulk_threshold_and_tier_order(self):\n        self.assertEqual(pricing.price(order(qty=9)), 105)\n        self.assertEqual(pricing.price(order(qty=10)), 110)\n        self.assertEqual(pricing.price(order(qty=11)), 119.5)\n        self.assertEqual(pricing.price(order(qty=10, tier=\\\"gold\\\")), 100.5)\n\n    def test_bulk_is_per_line(self):\n        sample = order(qty=10)\n        sample[\\\"items\\\"].append({\\\"category\\\": \\\"books\\\", \\\"unit\\\": 10, \\\"qty\\\": 9})\n        self.assertEqual(pricing.price(sample), 200)\n        sample[\\\"items\\\"][0][\\\"qty\\\"] = 9\n        self.assertEqual(pricing.price(sample), 195)\n\n    def test_bulk_before_save10_threshold(self):\n        self.assertEqual(pricing.price(order(5, 10, coupon=\\\"SAVE10\\\")), 62.5)\n        self.assertEqual(pricing.price(order(6, 10, coupon=\\\"SAVE10\\\")), 62)\n\n    def test_save20_disables_bulk_at_all_thresholds(self):\n        for subtotal, expected in [(50, 65), (99, 114), (100, 105), (149, 149.1), (150, 135)]:\n            with self.subTest(subtotal=subtotal):\n                self.assertEqual(pricing.price(order(subtotal / 10, 10, coupon=\\\"SAVE20\\\")), expected)\n\n    def test_shipping_and_tax_boundaries(self):\n        cases = [\n            (59, \\\"EU\\\", \\\"none\\\", None, 78.6), (60, \\\"EU\\\", \\\"none\\\", None, 72),\n            (10, \\\"EU\\\", \\\"none\\\", \\\"FREESHIP\\\", 12),\n            (24, \\\"US\\\", \\\"none\\\", \\\"FREESHIP\\\", 33.68),\n            (25, \\\"US\\\", \\\"none\\\", \\\"FREESHIP\\\", 26.75),\n            (74, \\\"US\\\", \\\"none\\\", None, 87.18), (75, \\\"US\\\", \\\"none\\\", None, 83.25),\n            (100, \\\"US\\\", \\\"none\\\", None, 107),\n            (80, \\\"US\\\", \\\"gold\\\", None, 85.6),\n            (10, \\\"ROW\\\", \\\"none\\\", \\\"FREESHIP\\\", 25),\n        ]\n        for unit, region, tier, coupon, expected in cases:\n            with self.subTest(unit=unit, region=region, tier=tier, coupon=coupon):\n                self.assertEqual(pricing.price(order(unit, category=\\\"electronics\\\", region=region,\n                                                     tier=tier, coupon=coupon)),\n                                 expected if tier \"'!= \"gold\" else 83.03)\n\n    def test_bulk_changes_shipping_threshold(self):\n        self.assertEqual(pricing.price(order(6, 10, region=\"EU\")), 76.2)\n        self.assertEqual(pricing.price(order(8, 10, region=\"US\")), 84.32)\n        self.assertEqual(pricing.price(order(6, 10, region=\"EU\", coupon=\"FREESHIP\")), 68.4)\n\n    def test_empty_order_and_no_mutation(self):\n        sample = order(qty=10, tier=\"gold\")\n        original = json.dumps(sample, sort_keys=True)\n        pricing.price(sample)\n        self.assertEqual(json.dumps(sample, sort_keys=True), original)\n        sample[\"items\"] = []\n        self.assertEqual(pricing.price(sample), 15)\n\n    def test_nesting_depth(self):\n        tree = ast.parse(inspect.getsource(pricing))\n        blocks = (ast.If, ast.For, ast.While, ast.With, ast.Try)\n\n        def depth(node, current=0):\n            current += isinstance(node, blocks)\n            return max([current] + [depth(child, current) for child in ast.iter_child_nodes(node)])\n\n        for node in ast.walk(tree):\n            if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef)):\n                self.assertLessEqual(depth(node), 3, node.name)\n\n\nif __name__ == \"__main__\":\n    unittest.main()\nPY\npython - <<'\"'PY'\nimport hashlib\nimport importlib.util\nimport json\nfrom pathlib import Path\nfrom test_pricing import legacy_orders\nspec = importlib.util.spec_from_file_location('legacy', '/tmp/pricing_legacy_138_c02.py')\nlegacy = importlib.util.module_from_spec(spec)\nspec.loader.exec_module(legacy)\nresults = [legacy.price(sample) for sample in legacy_orders()]\np = Path('test_pricing.py')\np.write_text(p.read_text().replace('LEGACY_DIGEST', hashlib.sha256(json.dumps(results).encode()).hexdigest()))\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_pricing.py <<'PY'\n\\\"\\\"\\\"Run with python -m unittest -v (no third-party dependencies).\\\"\\\"\\\"\nimport ast\nimport hashlib\nimport inspect\nimport json\nimport random\nimport unittest\n\nimport pricing\n\n\ndef order(unit=10, qty=1, category=\\\"books\\\", tier=\\\"none\\\", region=\\\"ROW\\\", coupon=None):\n    return {\n        \\\"customer\\\": {\\\"tier\\\": tier}, \\\"region\\\": region, \\\"coupon\\\": coupon,\n        \\\"items\\\": [{\\\"category\\\": category, \\\"unit\\\": unit, \\\"qty\\\": qty}],\n    }\n\n\ndef legacy_orders():\n    \\\"\\\"\\\"Stable random orders where the new bulk rule cannot change results.\\\"\\\"\\\"\n    rng = random.Random(138)\n    for index in range(1200):\n        coupon = rng.choice([None, \\\"SAVE10\\\", \\\"SAVE20\\\", \\\"FREESHIP\\\"])\n        sample = order(tier=rng.choice([\\\"gold\\\", \\\"silver\\\", \\\"none\\\"]),\n                       region=rng.choice([\\\"EU\\\", \\\"US\\\", \\\"ROW\\\"]), coupon=coupon)\n        sample[\\\"items\\\"] = [\n            {\\\"category\\\": rng.choice([\\\"books\\\", \\\"electronics\\\", \\\"toys\\\", \\\"garden\\\"]),\n             \\\"unit\\\": rng.uniform(0, 120),\n             \\\"qty\\\": rng.randint(0, 30 if coupon == \\\"SAVE20\\\" else 9)}\n            for _ in range(rng.randint(0, 8))\n        ]\n        yield sample\n\n\nclass PricingTests(unittest.TestCase):\n    def test_legacy_regression(self):\n        # Digest recorded from the unmodified legacy engine for these 1,200 orders.\n        results = [pricing.price(sample) for sample in legacy_orders()]\n        digest = hashlib.sha256(json.dumps(results).encode()).hexdigest()\n        self.assertEqual(digest, \\\"LEGACY_DIGEST\\\")\n\n    def test_category_tier_discounts(self):\n        expected = {\n            \\\"books\\\": [105, 110, 115], \\\"electronics\\\": [112, 115, 115],\n            \\\"toys\\\": [110, 113, 115], \\\"garden\\\": [110, 113, 115],\n        }\n        for category, totals in expected.items():\n            for tier, total in zip([\\\"gold\\\", \\\"silver\\\", \\\"none\\\"], totals):\n                with self.subTest(category=category, tier=tier):\n                    self.assertEqual(pricing.price(order(100, category=category, tier=tier)), total)\n\n    def test_bulk_threshold_and_tier_order(self):\n        self.assertEqual(pricing.price(order(qty=9)), 105)\n        self.assertEqual(pricing.price(order(qty=10)), 110)\n        self.assertEqual(pricing.price(order(qty=11)), 119.5)\n        self.assertEqual(pricing.price(order(qty=10, tier=\\\"gold\\\")), 100.5)\n\n    def test_bulk_is_per_line(self):\n        sample = order(qty=10)\n        sample[\\\"items\\\"].append({\\\"category\\\": \\\"books\\\", \\\"unit\\\": 10, \\\"qty\\\": 9})\n        self.assertEqual(pricing.price(sample), 200)\n        sample[\\\"items\\\"][0][\\\"qty\\\"] = 9\n        self.assertEqual(pricing.price(sample), 195)\n\n    def test_bulk_before_save10_threshold(self):\n        self.assertEqual(pricing.price(order(5, 10, coupon=\\\"SAVE10\\\")), 62.5)\n        self.assertEqual(pricing.price(order(6, 10, coupon=\\\"SAVE10\\\")), 62)\n\n    def test_save20_disables_bulk_at_all_thresholds(self):\n        for subtotal, expected in [(50, 65), (99, 114), (100, 105), (149, 149.1), (150, 135)]:\n            with self.subTest(subtotal=subtotal):\n                self.assertEqual(pricing.price(order(subtotal / 10, 10, coupon=\\\"SAVE20\\\")), expected)\n\n    def test_shipping_and_tax_boundaries(self):\n        cases = [\n            (59, \\\"EU\\\", \\\"none\\\", None, 78.6), (60, \\\"EU\\\", \\\"none\\\", None, 72),\n            (10, \\\"EU\\\", \\\"none\\\", \\\"FREESHIP\\\", 12),\n            (24, \\\"US\\\", \\\"none\\\", \\\"FREESHIP\\\", 33.68),\n            (25, \\\"US\\\", \\\"none\\\", \\\"FREESHIP\\\", 26.75),\n            (74, \\\"US\\\", \\\"none\\\", None, 87.18), (75, \\\"US\\\", \\\"none\\\", None, 83.25),\n            (100, \\\"US\\\", \\\"none\\\", None, 107),\n            (80, \\\"US\\\", \\\"gold\\\", None, 85.6),\n            (10, \\\"ROW\\\", \\\"none\\\", \\\"FREESHIP\\\", 25),\n        ]\n        for unit, region, tier, coupon, expected in cases:\n            with self.subTest(unit=unit, region=region, tier=tier, coupon=coupon):\n                self.assertEqual(pricing.price(order(unit, category=\\\"electronics\\\", region=region,\n                                                     tier=tier, coupon=coupon)),\n                                 expected if tier \"'!= \"gold\" else 83.03)\n\n    def test_bulk_changes_shipping_threshold(self):\n        self.assertEqual(pricing.price(order(6, 10, region=\"EU\")), 76.2)\n        self.assertEqual(pricing.price(order(8, 10, region=\"US\")), 84.32)\n        self.assertEqual(pricing.price(order(6, 10, region=\"EU\", coupon=\"FREESHIP\")), 68.4)\n\n    def test_empty_order_and_no_mutation(self):\n        sample = order(qty=10, tier=\"gold\")\n        original = json.dumps(sample, sort_keys=True)\n        pricing.price(sample)\n        self.assertEqual(json.dumps(sample, sort_keys=True), original)\n        sample[\"items\"] = []\n        self.assertEqual(pricing.price(sample), 15)\n\n    def test_nesting_depth(self):\n        tree = ast.parse(inspect.getsource(pricing))\n        blocks = (ast.If, ast.For, ast.While, ast.With, ast.Try)\n\n        def depth(node, current=0):\n            current += isinstance(node, blocks)\n            return max([current] + [depth(child, current) for child in ast.iter_child_nodes(node)])\n\n        for node in ast.walk(tree):\n            if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef)):\n                self.assertLessEqual(depth(node), 3, node.name)\n\n\nif __name__ == \"__main__\":\n    unittest.main()\nPY\npython - <<'\"'PY'\nimport hashlib\nimport importlib.util\nimport json\nfrom pathlib import Path\nfrom test_pricing import legacy_orders\nspec = importlib.util.spec_from_file_location('legacy', '/tmp/pricing_legacy_138_c02.py')\nlegacy = importlib.util.module_from_spec(spec)\nspec.loader.exec_module(legacy)\nresults = [legacy.price(sample) for sample in legacy_orders()]\np = Path('test_pricing.py')\np.write_text(p.read_text().replace('LEGACY_DIGEST', hashlib.sha256(json.dumps(results).encode()).hexdigest()))\nPY\npython -m unittest -v\"", "aggregated_output": "/bin/bash: line 121: python: command not found\n/bin/bash: line 134: 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 - <<'PY'\nimport hashlib\nimport importlib.util\nimport json\nfrom pathlib import Path\nfrom test_pricing import legacy_orders\nspec = importlib.util.spec_from_file_location('legacy', '/tmp/pricing_legacy_138_c02.py')\nlegacy = importlib.util.module_from_spec(spec)\nspec.loader.exec_module(legacy)\nresults = [legacy.price(sample) for sample in legacy_orders()]\np = Path('test_pricing.py')\ns = p.read_text().replace('LEGACY_DIGEST', hashlib.sha256(json.dumps(results).encode()).hexdigest())\ns = s.replace('python -m unittest', 'python3 -m unittest').replace('(80, \\\"US\\\", \\\"gold\\\", None, 85.6)', '(80, \\\"US\\\", \\\"gold\\\", None, 83.03)').replace('expected if tier \"'!= \"gold\" else 83.03'\"', 'expected')\np.write_text(s)\nPY\npython3 -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 - <<'PY'\nimport hashlib\nimport importlib.util\nimport json\nfrom pathlib import Path\nfrom test_pricing import legacy_orders\nspec = importlib.util.spec_from_file_location('legacy', '/tmp/pricing_legacy_138_c02.py')\nlegacy = importlib.util.module_from_spec(spec)\nspec.loader.exec_module(legacy)\nresults = [legacy.price(sample) for sample in legacy_orders()]\np = Path('test_pricing.py')\ns = p.read_text().replace('LEGACY_DIGEST', hashlib.sha256(json.dumps(results).encode()).hexdigest())\ns = s.replace('python -m unittest', 'python3 -m unittest').replace('(80, \\\"US\\\", \\\"gold\\\", None, 85.6)', '(80, \\\"US\\\", \\\"gold\\\", None, 83.03)').replace('expected if tier \"'!= \"gold\" else 83.03'\"', 'expected')\np.write_text(s)\nPY\npython3 -m unittest -v\"", "aggregated_output": "test_bulk_before_save10_threshold (test_pricing.PricingTests.test_bulk_before_save10_threshold) ... ok\ntest_bulk_changes_shipping_threshold (test_pricing.PricingTests.test_bulk_changes_shipping_threshold) ... ok\ntest_bulk_is_per_line (test_pricing.PricingTests.test_bulk_is_per_line) ... ok\ntest_bulk_threshold_and_tier_order (test_pricing.PricingTests.test_bulk_threshold_and_tier_order) ... ok\ntest_category_tier_discounts (test_pricing.PricingTests.test_category_tier_discounts) ... ok\ntest_empty_order_and_no_mutation (test_pricing.PricingTests.test_empty_order_and_no_mutation) ... ok\ntest_legacy_regression (test_pricing.PricingTests.test_legacy_regression) ... ok\ntest_nesting_depth (test_pricing.PricingTests.test_nesting_depth) ... ok\ntest_save20_disables_bulk_at_all_thresholds (test_pricing.PricingTests.test_save20_disables_bulk_at_all_thresholds) ... ok\ntest_shipping_and_tax_boundaries (test_pricing.PricingTests.test_shipping_and_tax_boundaries) ... ok\n\n----------------------------------------------------------------------\nRan 10 tests in 0.009s\n\nOK\n", "exit_code": 0, "status": "completed"}}
{"type": "item.completed", "item": {"id": "item_8", "type": "agent_message", "text": "Refactored `pricing.py` into readable helpers with table-driven tier discounts and nesting depth \u2264 3. Added the bulk discount, disabled whenever `SAVE20` is present.\n\nAdded `test_pricing.py` covering thresholds, shipping, tax, and 1,200 randomized legacy comparisons.\n\nValidation: `python3 -m unittest -v` \u2014 all 10 tests pass."}}
{"type": "turn.completed", "usage": {"input_tokens": 118284, "cached_input_tokens": 100608, "cache_write_input_tokens": 0, "output_tokens": 3232, "reasoning_output_tokens": 287}}