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/
addrs_test.go
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/
addrs_test.go
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package addrs
import (
"flag"
"fmt"
"net"
"sync"
"testing"
)
var (
genNameCount int
genNameMutex sync.Mutex
)
func genName() string {
genNameMutex.Lock()
defer genNameMutex.Unlock()
defer func() { genNameCount++ }()
return fmt.Sprintf("flag-%d", genNameCount)
}
func TestFlagOne(t *testing.T) {
name := genName()
var a1 net.Addr
FlagOneVar(&a1, name, "", "")
const network = "udp"
const addr = "127.0.0.1:1234"
if err := flag.Set(name, network+":"+addr); err != nil {
t.Fatal(err)
}
if a1.Network() != network {
t.Fatal("did not find expected network")
}
if a1.String() != addr {
t.Fatal("did not find expected addr")
}
}
func TestFlagOneInvalidNetwork(t *testing.T) {
name := genName()
var a1 net.Addr
FlagOneVar(&a1, name, "", "")
const network = "foo"
const addr = "127.0.0.1:1234"
err := flag.Set(name, network+":"+addr)
if err == nil {
t.Fatal("was expecting an error")
}
if err.Error() != "unknown network foo" {
t.Fatal("did not get expected error, got", err)
}
}
func TestFlagOneDefaultValue(t *testing.T) {
name := genName()
var a1 net.Addr
const network = "udp"
const addr = "127.0.0.1:1234"
FlagOneVar(&a1, name, network+":"+addr, "")
if a1.Network() != network {
t.Fatal("did not find expected network")
}
if a1.String() != addr {
t.Fatal("did not find expected addr")
}
}
func TestFlagOneInvalidDefaultValue(t *testing.T) {
defer func() {
if err := recover(); err == nil {
t.Fatal("was expecting panic")
}
}()
name := genName()
var a1 net.Addr
const network = "foo"
const addr = "127.0.0.1:1234"
FlagOneVar(&a1, name, network+":"+addr, "")
}
func TestFlagOneInvalidFormat(t *testing.T) {
name := genName()
var a1 net.Addr
FlagOneVar(&a1, name, "", "")
err := flag.Set(name, "foo")
if err == nil {
t.Fatal("was expecting an error")
}
if err.Error() != `invalid address format, must be "net:host:port": foo` {
t.Fatal("did not get expected error, got", err)
}
}
func TestFlagMany(t *testing.T) {
name := genName()
var a1 []net.Addr
FlagManyVar(&a1, name, "", "")
const network0 = "tcp"
const addr0 = "127.0.0.1:1234"
const network1 = "tcp"
const addr1 = "127.0.0.1:5678"
if err := flag.Set(name, network0+":"+addr0+","+network1+":"+addr1); err != nil {
t.Fatal(err)
}
if a1[0].Network() != network0 {
t.Fatal("did not find expected network")
}
if a1[0].String() != addr0 {
t.Fatal("did not find expected addr")
}
if a1[1].Network() != network1 {
t.Fatal("did not find expected network")
}
if a1[1].String() != addr1 {
t.Fatal("did not find expected addr")
}
}
func TestFlagManyDefaultValue(t *testing.T) {
name := genName()
var a1 []net.Addr
const network0 = "tcp"
const addr0 = "127.0.0.1:1234"
const network1 = "tcp"
const addr1 = "127.0.0.1:5678"
FlagManyVar(&a1, name, network0+":"+addr0+","+network1+":"+addr1, "")
if a1[0].Network() != network0 {
t.Fatal("did not find expected network")
}
if a1[0].String() != addr0 {
t.Fatal("did not find expected addr")
}
if a1[1].Network() != network1 {
t.Fatal("did not find expected network")
}
if a1[1].String() != addr1 {
t.Fatal("did not find expected addr")
}
}
func TestFlagManyInvalidDefaultValue(t *testing.T) {
defer func() {
if err := recover(); err == nil {
t.Fatal("was expecting panic")
}
}()
name := genName()
var a1 []net.Addr
const network = "foo"
const addr = "127.0.0.1:1234"
FlagManyVar(&a1, name, network+":"+addr, "")
}