initial Go port of streamrip

internal/audio/convert/convert_test.go

@@ -0,0 +1,43 @@
+package convert
+
+import (
+	"strings"
+	"testing"
+
+	"streamrip-go/internal/config"
+)
+
+func TestAllowedSampleRates(t *testing.T) {
+	got := allowedSampleRates(96000)
+	want := []string{"44100", "48000", "88200", "96000"}
+	if strings.Join(got, ",") != strings.Join(want, ",") {
+		t.Fatalf("rates=%v want=%v", got, want)
+	}
+}
+
+func TestBuildFFmpegArgsLossless(t *testing.T) {
+	cfg := config.ConversionConfig{Enabled: true, Codec: "FLAC", SamplingRate: 48000, BitDepth: 16}
+	args := buildFFmpegArgs("in.flac", "out.flac", profiles["FLAC"], cfg)
+	joined := strings.Join(args, " ")
+	if !strings.Contains(joined, "-c:a flac") {
+		t.Fatalf("missing flac codec args=%s", joined)
+	}
+	if !strings.Contains(joined, "sample_rates=44100|48000") {
+		t.Fatalf("missing sample rate filter args=%s", joined)
+	}
+	if !strings.Contains(joined, "sample_fmts=s16p|s16") {
+		t.Fatalf("missing bit depth filter args=%s", joined)
+	}
+}
+
+func TestBuildFFmpegArgsLossy(t *testing.T) {
+	cfg := config.ConversionConfig{Enabled: true, Codec: "MP3", LossyBitrate: 320}
+	args := buildFFmpegArgs("in.flac", "out.mp3", profiles["MP3"], cfg)
+	joined := strings.Join(args, " ")
+	if !strings.Contains(joined, "-c:a libmp3lame") {
+		t.Fatalf("missing mp3 codec args=%s", joined)
+	}
+	if !strings.Contains(joined, "-b:a 320k") {
+		t.Fatalf("missing bitrate args=%s", joined)
+	}
+}