FA-68435 / Toll and parking fee computation / Member archive

Time-band rate with calendar day cap: band minutes are rounded down to quarters · case 05

Time-band rate with calendar day cap returns a wrong result when band minutes are rounded down to quarters.

Member previewVariant 5 · 3 implementations · 8 checks per implementation

Case contract

Input {bands: [[start minute of day, cents per quarter hour]] sorted with first start 0, entry, exit (absolute minutes), daily_max}. Minutes of the stay are totalled per calendar day and band; each total is rounded up to whole quarter hours and priced at its band rate. Each calendar day's charge is capped at daily_max.

Why this case matters

Fee engines bill customers in integer cents; a wrong boundary, rounding stage or cap scope silently over- or under-charges.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
fee oracle 3	`100`	`150`	Failed

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