test for short import

app/migrator/remark.go

@@ -66,7 +66,7 @@ func (r *Remark) Import(reader io.Reader, siteID string) (size int, err error) {
 	scanner := bufio.NewScanner(reader)
 	for scanner.Scan() {
 		rec := scanner.Bytes()
-		if len(rec) < 2 {
+		if len(rec) < 3 {
 			continue
 		}
 		total++

app/migrator/remark_test.go

@@ -41,6 +41,7 @@ func TestRemark_Import(t *testing.T) {
 	buf := &bytes.Buffer{}
 	buf.WriteString(r1)
 	buf.WriteString(r2)
+	buf.WriteString("{}")
 
 	os.Remove(testDb)
 	b, err := engine.NewBoltDB(bolt.Options{}, engine.BoltSite{SiteID: "radio-t", FileName: testDb})