feat: add wav download quality

internal/download/options_test.go

@@ -7,6 +7,32 @@ import (
 	"github.com/mathismqn/godeez/internal/deezer"
 )
 
+func TestOptionsSourceQuality(t *testing.T) {
+	tests := []struct {
+		quality string
+		want    string
+		wantWAV bool
+	}{
+		{"mp3_128", "mp3_128", false},
+		{"mp3_320", "mp3_320", false},
+		{"flac", "flac", false},
+		{"wav", "flac", true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.quality, func(t *testing.T) {
+			opts := Options{Quality: tt.quality}
+
+			if got := opts.sourceQuality(); got != tt.want {
+				t.Errorf("sourceQuality() = %q, want %q", got, tt.want)
+			}
+			if got := opts.convertsToWAV(); got != tt.wantWAV {
+				t.Errorf("convertsToWAV() = %v, want %v", got, tt.wantWAV)
+			}
+		})
+	}
+}
+
 func TestOptionsValidate(t *testing.T) {
 	valid := Options{Quality: "mp3_320", Timeout: time.Minute, Limit: 10}
 
@@ -19,6 +45,7 @@ func TestOptionsValidate(t *testing.T) {
 		{"valid", func(o *Options) {}, deezer.KindAlbum, false},
 		{"mp3_128", func(o *Options) { o.Quality = "mp3_128" }, deezer.KindAlbum, false},
 		{"flac", func(o *Options) { o.Quality = "flac" }, deezer.KindAlbum, false},
+		{"wav", func(o *Options) { o.Quality = "wav" }, deezer.KindAlbum, false},
 		{"invalid quality", func(o *Options) { o.Quality = "ogg" }, deezer.KindAlbum, true},
 		{"uppercase quality", func(o *Options) { o.Quality = "MP3_320" }, deezer.KindAlbum, true},
 		{"zero timeout", func(o *Options) { o.Timeout = 0 }, deezer.KindAlbum, true},