{
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  "fixture": {
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    "max_hops": 4,
    "ground_truth": "Failing or erroring tests from a full pytest run for each mutation."
  },
  "methods": {
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    "direct_callers": "Test functions one static call edge from the changed function.",
    "impact": "Tests connected by a FalkorDB CALLS path of 1 to 4 hops.",
    "all_tests": "Every collected test; the ground-truth reference."
  },
  "aggregate": {
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  },
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    {
      "number": 1,
      "id": "coupon_cap_removed",
      "description": "An oversized coupon is no longer capped at the subtotal.",
      "changed_functions": [
        "store/pricing.py::clamp_coupon"
      ],
      "failing_tests": [
        "tests/test_orders.py::test_checkout_large_coupon_never_negative",
        "tests/test_pricing.py::test_coupon_cannot_exceed_subtotal",
        "tests/test_receipts.py::test_receipt_large_coupon",
        "tests/test_refunds.py::test_refund_is_capped_at_paid_amount"
      ],
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          "failure_recall": 0.25,
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          "failure_yield": 0.1429
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          "failure_yield": 0.1667
        }
      }
    },
    {
      "number": 2,
      "id": "negative_coupon_accepted",
      "description": "A negative coupon increases the amount charged.",
      "changed_functions": [
        "store/pricing.py::clamp_coupon"
      ],
      "failing_tests": [
        "tests/test_pricing.py::test_negative_coupon_is_ignored"
      ],
      "total_tests": 24,
      "methods": {
        "filename": {
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          "failure_yield": 0.0909
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          "failure_yield": 0.0417
        }
      }
    },
    {
      "number": 3,
      "id": "quantity_ignored",
      "description": "Line pricing ignores item quantity.",
      "changed_functions": [
        "store/pricing.py::line_total"
      ],
      "failing_tests": [
        "tests/test_orders.py::test_large_order_gets_free_shipping",
        "tests/test_orders.py::test_order_includes_tax_and_shipping",
        "tests/test_pricing.py::test_discounted_subtotal_combines_discounts",
        "tests/test_pricing.py::test_line_total_allows_zero_quantity",
        "tests/test_pricing.py::test_line_total_uses_quantity",
        "tests/test_receipts.py::test_receipt_uses_order_total"
      ],
      "total_tests": 24,
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        },
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          "selected": 3,
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          "failure_yield": 0.6667
        },
        "impact": {
          "selected": 10,
          "detected_failures": 6,
          "failure_recall": 1.0,
          "test_reduction": 0.5833,
          "failure_yield": 0.6
        },
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          "test_reduction": 0.0,
          "failure_yield": 0.25
        }
      }
    },
    {
      "number": 4,
      "id": "zero_quantity_charged",
      "description": "An empty line item is charged as one item.",
      "changed_functions": [
        "store/pricing.py::line_total"
      ],
      "failing_tests": [
        "tests/test_pricing.py::test_line_total_allows_zero_quantity"
      ],
      "total_tests": 24,
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        "filename": {
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          "failure_yield": 0.1
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          "failure_recall": 1.0,
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          "failure_yield": 0.0417
        }
      }
    },
    {
      "number": 5,
      "id": "negative_quantity_allowed",
      "description": "A quantity of minus one bypasses validation.",
      "changed_functions": [
        "store/pricing.py::line_total"
      ],
      "failing_tests": [
        "tests/test_pricing.py::test_line_total_rejects_negative_quantity"
      ],
      "total_tests": 24,
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          "failure_yield": 0.1
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          "failure_yield": 0.0417
        }
      }
    },
    {
      "number": 6,
      "id": "percentage_rounding_changed",
      "description": "Percentage discounts round down instead of to the nearest cent.",
      "changed_functions": [
        "store/pricing.py::percentage_discount"
      ],
      "failing_tests": [
        "tests/test_pricing.py::test_percentage_discount_rounds_to_cent"
      ],
      "total_tests": 24,
      "methods": {
        "filename": {
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          "detected_failures": 1,
          "failure_recall": 1.0,
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          "failure_yield": 0.1429
        },
        "direct_callers": {
          "selected": 1,
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          "failure_recall": 1.0,
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          "failure_yield": 1.0
        },
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          "selected": 8,
          "detected_failures": 1,
          "failure_recall": 1.0,
          "test_reduction": 0.6667,
          "failure_yield": 0.125
        },
        "all_tests": {
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          "detected_failures": 1,
          "failure_recall": 1.0,
          "test_reduction": 0.0,
          "failure_yield": 0.0417
        }
      }
    },
    {
      "number": 7,
      "id": "combined_discount_dropped",
      "description": "Order pricing silently ignores percentage discounts.",
      "changed_functions": [
        "store/pricing.py::discounted_subtotal"
      ],
      "failing_tests": [
        "tests/test_pricing.py::test_discounted_subtotal_combines_discounts"
      ],
      "total_tests": 24,
      "methods": {
        "filename": {
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          "failure_recall": 1.0,
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        },
        "direct_callers": {
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          "failure_yield": 1.0
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          "failure_yield": 0.0417
        }
      }
    },
    {
      "number": 8,
      "id": "tax_rounding_changed",
      "description": "Tax rounds down instead of to the nearest cent.",
      "changed_functions": [
        "store/tax.py::tax_cents"
      ],
      "failing_tests": [
        "tests/test_tax.py::test_tax_rounds_to_nearest_cent"
      ],
      "total_tests": 24,
      "methods": {
        "filename": {
          "selected": 2,
          "detected_failures": 1,
          "failure_recall": 1.0,
          "test_reduction": 0.9167,
          "failure_yield": 0.5
        },
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          "failure_recall": 1.0,
          "test_reduction": 0.0,
          "failure_yield": 0.0417
        }
      }
    },
    {
      "number": 9,
      "id": "shipping_threshold_exclusive",
      "description": "Orders exactly at the free-shipping threshold are charged.",
      "changed_functions": [
        "store/shipping.py::shipping_fee"
      ],
      "failing_tests": [
        "tests/test_shipping.py::test_shipping_is_free_at_threshold"
      ],
      "total_tests": 24,
      "methods": {
        "filename": {
          "selected": 3,
          "detected_failures": 1,
          "failure_recall": 1.0,
          "test_reduction": 0.875,
          "failure_yield": 0.3333
        },
        "direct_callers": {
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          "test_reduction": 0.625,
          "failure_yield": 0.1111
        },
        "all_tests": {
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          "failure_recall": 1.0,
          "test_reduction": 0.0,
          "failure_yield": 0.0417
        }
      }
    },
    {
      "number": 10,
      "id": "shipping_fee_increased",
      "description": "Paid shipping changes without its callers being updated.",
      "changed_functions": [
        "store/shipping.py::shipping_fee"
      ],
      "failing_tests": [
        "tests/test_orders.py::test_checkout_large_coupon_never_negative",
        "tests/test_orders.py::test_order_includes_tax_and_shipping",
        "tests/test_receipts.py::test_receipt_large_coupon",
        "tests/test_receipts.py::test_receipt_uses_order_total",
        "tests/test_shipping.py::test_shipping_below_threshold"
      ],
      "total_tests": 24,
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          "failure_recall": 0.2,
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          "failure_recall": 0.2,
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          "failure_yield": 0.5556
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          "test_reduction": 0.0,
          "failure_yield": 0.2083
        }
      }
    },
    {
      "number": 11,
      "id": "exact_stock_rejected",
      "description": "An order using the final unit of stock is rejected.",
      "changed_functions": [
        "store/inventory.py::Inventory.available"
      ],
      "failing_tests": [
        "tests/test_inventory.py::test_exact_stock_is_available"
      ],
      "total_tests": 24,
      "methods": {
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        },
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          "selected": 5,
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          "test_reduction": 0.7917,
          "failure_yield": 0.2
        },
        "all_tests": {
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          "failure_recall": 1.0,
          "test_reduction": 0.0,
          "failure_yield": 0.0417
        }
      }
    },
    {
      "number": 12,
      "id": "reserve_does_not_decrement",
      "description": "A successful reservation leaves inventory unchanged.",
      "changed_functions": [
        "store/inventory.py::Inventory.reserve"
      ],
      "failing_tests": [
        "tests/test_inventory.py::test_reserve_reduces_stock",
        "tests/test_orders.py::test_checkout_reserves_inventory"
      ],
      "total_tests": 24,
      "methods": {
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          "failure_yield": 0.5
        },
        "impact": {
          "selected": 4,
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          "failure_recall": 1.0,
          "test_reduction": 0.8333,
          "failure_yield": 0.5
        },
        "all_tests": {
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          "test_reduction": 0.0,
          "failure_yield": 0.0833
        }
      }
    },
    {
      "number": 13,
      "id": "tax_omitted_from_order",
      "description": "Checkout omits tax from the order total.",
      "changed_functions": [
        "store/orders.py::price_order"
      ],
      "failing_tests": [
        "tests/test_orders.py::test_order_includes_tax_and_shipping",
        "tests/test_receipts.py::test_receipt_uses_order_total"
      ],
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      }
    },
    {
      "number": 14,
      "id": "receipt_decimal_shift",
      "description": "Receipt formatting moves the decimal point.",
      "changed_functions": [
        "store/receipts.py::format_total"
      ],
      "failing_tests": [
        "tests/test_receipts.py::test_receipt_formats_cents"
      ],
      "total_tests": 24,
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        },
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          "failure_yield": 1.0
        },
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          "failure_yield": 0.0417
        }
      }
    },
    {
      "number": 15,
      "id": "refund_cap_removed",
      "description": "Refunds can exceed the amount originally paid.",
      "changed_functions": [
        "store/refunds.py::refund_amount"
      ],
      "failing_tests": [
        "tests/test_refunds.py::test_refund_is_capped_at_paid_amount"
      ],
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    }
  ]
}