package audio

import (
	"testing"

	"github.com/qvest-digital/go-mxl/mxl"
)

func TestBatchSize(t *testing.T) {
	tests := []struct {
		name string
		rate mxl.Rational
		want uint64
	}{
		{name: "44.1 kHz", rate: mxl.Rational{Num: 44100, Den: 1}, want: 441},
		{name: "48 kHz", rate: mxl.Rational{Num: 48000, Den: 1}, want: 480},
		{name: "96 kHz", rate: mxl.Rational{Num: 96000, Den: 1}, want: 960},
		{name: "192 kHz", rate: mxl.Rational{Num: 192000, Den: 1}, want: 1920},
		{name: "minimum", rate: mxl.Rational{Num: 1, Den: 1}, want: 1},
		{name: "zero numerator", rate: mxl.Rational{Num: 0, Den: 1}, want: 1},
		{name: "zero denominator", rate: mxl.Rational{Num: 48000, Den: 0}, want: 1},
	}

	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			if got := batchSize(tc.rate); got != tc.want {
				t.Fatalf("batchSize(%d/%d) = %d, want %d", tc.rate.Num, tc.rate.Den, got, tc.want)
			}
		})
	}
}