run audio extraction

internal/audio/runner_test.go

@@ -0,0 +1,31 @@
+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)
+			}
+		})
+	}
+}