CSVText := `1, 2, 3, "test"
4, 5, 6, "another_test"`

type T struct {
    F1 int
    F2 int
    F3 float32
    F4 string
}
dec := csv.NewDecoder(strings.NewReader(CSVText))
dec.TrimLeadingSpace = true

t := T{}
for {
    err := dec.Decode(&t)
     if err == io.EOF {
         break
     } else if err != nil {
         fmt.Printf("error: %v\n", err)
     }
     fmt.Println(t)
}
//Output:
//{1 2 3 test}
//{4 5 6 another_test}