package setup import ( "fmt" "strconv" "strings" "testing" "github.com/stretchr/testify/require" ) func TestFormatAlphaNum(t *testing.T) { value := int64(999) n := 5 s1 := strings.ToUpper(fmt.Sprintf("%0"+strconv.Itoa(n)+"s", strconv.FormatInt(value, 36))) s2 := FormatInt36(value, n) require.Equal(t, s1, s2) }