Jan Novak
57ec817044
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Ports calculate_fee and calculate_junior_fee from scripts/attendance.py into a new go/internal/domain/fees package. Introduces the Expected type (Value int, Unknown bool) for the junior "?" sentinel, keeping the Go API strictly typed instead of mirroring Python's str|int return. All 20 table-driven tests pass with -race; golangci-lint clean. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
38 lines
1.4 KiB
Go
38 lines
1.4 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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// All expected outputs verified against live Python implementation on 2026-05-06:
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// PYTHONPATH=scripts:. python -c 'from attendance import calculate_junior_fee; print([calculate_junior_fee(c,m) for c,m in [(0,"2026-05"),(0,""),(1,"2026-05"),(1,"unknown"),(2,"2026-05"),(2,"2025-09"),(2,"2026-03"),(5,"2025-09"),(2,"2027-01"),(2,"")]])'
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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 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 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 default month", 2, "2026-05", Expected{Value: 500}},
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{"two practices reduced sept", 2, "2025-09", Expected{Value: 250}},
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{"two practices reduced march", 2, "2026-03", Expected{Value: 250}},
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{"high count same as two", 5, "2025-09", Expected{Value: 250}},
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{"unknown future month falls back", 2, "2027-01", Expected{Value: 500}},
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{"empty month falls back", 2, "", Expected{Value: 500}},
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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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