update test and fmt code

parse.go

@@ -55,7 +55,7 @@ func parseRabinString(r io.Reader, chunker string) (Splitter, error) {
 			return nil, err
 		}
 		if min < 16 {
-			return nil,ErrRabinMin
+			return nil, ErrRabinMin
 		}
 		sub = strings.Split(parts[2], ":")
 		if len(sub) > 1 && sub[0] != "avg" {

parse_test.go

 package chunk
 
 import (
-	"testing"
 	"bytes"
+	"testing"
 )
 
 func TestParse(t *testing.T) {
@@ -15,7 +15,7 @@ func TestParse(t *testing.T) {
 		t.Errorf(err.Error())
 	}
 	_, err = parseRabinString(r, chk2)
-	if err == nil ||  err.Error() != ErrRabinMin.Error() {
-		t.Errorf("it should be a ErrRabinMin here.")
+	if err == ErrRabinMin {
+		t.Log("it should be ErrRabinMin here.")
 	}
-}
\ No newline at end of file
+}