"strings"
	"testing"
)

var update = flag.Bool("update", false, "update reference files")

// TestBlockHuff tests huffman encoding against reference files
// to detect possible regressions.
// If encoding/bit allocation changes you can regenerate these files
// by using the -update flag.
func TestBlockHuff(t *testing.T) {
	// determine input files
	match, err := filepath.Glob("testdata/huffman-*.in")
	if err != nil {