kacerrandClaude Opus 5.5
21db863958
- 2026-08 added to the junior rate table at 0 CZK, same as adults - A single practice in a 0-rate month is 0 instead of "?", since a free month needs no manual review - Mirrored in Go and legacy Python; new calculate_junior_fee parity fixtures Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
54 lines
2.0 KiB
Go
54 lines
2.0 KiB
Go
package fees
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import "testing"
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func TestCalculateJuniorFee(t *testing.T) {
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t.Parallel()
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// mustRate returns the configured rate for a month that must be in the map.
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// Panics immediately if the month is absent so a removed entry causes a loud
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// failure rather than a silent comparison against Go's zero value.
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mustRate := func(month string) Expected {
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r, ok := JuniorFeeMonthlyRate[month]
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if !ok {
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panic("test month not in JuniorFeeMonthlyRate: " + month)
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}
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return Expected{Value: r}
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}
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tests := []struct {
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name string
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count int
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month string
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want Expected
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}{
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// Zero attendance always returns 0.
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{"zero short-circuits", 0, "2026-05", Expected{Value: 0}},
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{"zero empty month", 0, "", Expected{Value: 0}},
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// Single practice returns the Unknown sentinel regardless of month.
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{"single practice sentinel", 1, "2026-05", Expected{Unknown: true}},
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{"single ignores monthKey", 1, "unknown", Expected{Unknown: true}},
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// Two+ practices for a configured month: must use the map value, not the default.
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{"two practices unconfigured month", 2, "2026-05", Expected{Value: JuniorFeeDefault}},
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{"two practices reduced sept", 2, "2025-09", mustRate("2025-09")},
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{"two practices reduced march", 2, "2026-03", mustRate("2026-03")},
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{"high count same as two", 5, "2025-09", mustRate("2025-09")},
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// A 0-rate month is free, and a single practice needs no manual review.
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{"two in free month is free", 2, "2026-08", Expected{Value: 0}},
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{"single in free month is free", 1, "2026-08", Expected{Value: 0}},
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// Two+ practices for an unknown/future month: must fall back to JuniorFeeDefault.
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{"unknown future month falls back", 2, "2027-01", Expected{Value: JuniorFeeDefault}},
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{"empty month falls back", 2, "", Expected{Value: JuniorFeeDefault}},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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t.Parallel()
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got := CalculateJuniorFee(tc.count, tc.month)
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if got != tc.want {
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t.Errorf("CalculateJuniorFee(%d, %q) = %+v, want %+v", tc.count, tc.month, got, tc.want)
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}
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})
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}
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}
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