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ipnet_slice_test.go
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ipnet_slice_test.go
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package pflag
import (
"fmt"
"net"
"strings"
"testing"
)
// Helper function to set static slices
func getCIDR(ip net.IP, cidr *net.IPNet, err error) net.IPNet {
return *cidr
}
func equalCIDR(c1 net.IPNet, c2 net.IPNet) bool {
if c1.String() == c2.String() {
return true
}
return false
}
func setUpIPNetFlagSet(ipsp *[]net.IPNet) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.IPNetSliceVar(ipsp, "cidrs", []net.IPNet{}, "Command separated list!")
return f
}
func setUpIPNetFlagSetWithDefault(ipsp *[]net.IPNet) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.IPNetSliceVar(ipsp, "cidrs",
[]net.IPNet{
getCIDR(net.ParseCIDR("192.168.1.1/16")),
getCIDR(net.ParseCIDR("fd00::/64")),
},
"Command separated list!")
return f
}
func TestEmptyIPNet(t *testing.T) {
var cidrs []net.IPNet
f := setUpIPNetFlagSet(&cidrs)
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
getIPNet, err := f.GetIPNetSlice("cidrs")
if err != nil {
t.Fatal("got an error from GetIPNetSlice():", err)
}
if len(getIPNet) != 0 {
t.Fatalf("got ips %v with len=%d but expected length=0", getIPNet, len(getIPNet))
}
}
func TestIPNets(t *testing.T) {
var ips []net.IPNet
f := setUpIPNetFlagSet(&ips)
vals := []string{"192.168.1.1/24", "10.0.0.1/16", "fd00:0:0:0:0:0:0:2/64"}
arg := fmt.Sprintf("--cidrs=%s", strings.Join(vals, ","))
err := f.Parse([]string{arg})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range ips {
if _, cidr, _ := net.ParseCIDR(vals[i]); cidr == nil {
t.Fatalf("invalid string being converted to CIDR: %s", vals[i])
} else if !equalCIDR(*cidr, v) {
t.Fatalf("expected ips[%d] to be %s but got: %s from GetIPSlice", i, vals[i], v)
}
}
}
func TestIPNetDefault(t *testing.T) {
var cidrs []net.IPNet
f := setUpIPNetFlagSetWithDefault(&cidrs)
vals := []string{"192.168.1.1/16", "fd00::/64"}
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range cidrs {
if _, cidr, _ := net.ParseCIDR(vals[i]); cidr == nil {
t.Fatalf("invalid string being converted to CIDR: %s", vals[i])
} else if !equalCIDR(*cidr, v) {
t.Fatalf("expected cidrs[%d] to be %s but got: %s", i, vals[i], v)
}
}
getIPNet, err := f.GetIPNetSlice("cidrs")
if err != nil {
t.Fatal("got an error from GetIPNetSlice")
}
for i, v := range getIPNet {
if _, cidr, _ := net.ParseCIDR(vals[i]); cidr == nil {
t.Fatalf("invalid string being converted to CIDR: %s", vals[i])
} else if !equalCIDR(*cidr, v) {
t.Fatalf("expected cidrs[%d] to be %s but got: %s", i, vals[i], v)
}
}
}
func TestIPNetWithDefault(t *testing.T) {
var cidrs []net.IPNet
f := setUpIPNetFlagSetWithDefault(&cidrs)
vals := []string{"192.168.1.1/16", "fd00::/64"}
arg := fmt.Sprintf("--cidrs=%s", strings.Join(vals, ","))
err := f.Parse([]string{arg})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range cidrs {
if _, cidr, _ := net.ParseCIDR(vals[i]); cidr == nil {
t.Fatalf("invalid string being converted to CIDR: %s", vals[i])
} else if !equalCIDR(*cidr, v) {
t.Fatalf("expected cidrs[%d] to be %s but got: %s", i, vals[i], v)
}
}
getIPNet, err := f.GetIPNetSlice("cidrs")
if err != nil {
t.Fatal("got an error from GetIPNetSlice")
}
for i, v := range getIPNet {
if _, cidr, _ := net.ParseCIDR(vals[i]); cidr == nil {
t.Fatalf("invalid string being converted to CIDR: %s", vals[i])
} else if !equalCIDR(*cidr, v) {
t.Fatalf("expected cidrs[%d] to be %s but got: %s", i, vals[i], v)
}
}
}
func TestIPNetCalledTwice(t *testing.T) {
var cidrs []net.IPNet
f := setUpIPNetFlagSet(&cidrs)
in := []string{"192.168.1.2/16,fd00::/64", "10.0.0.1/24"}
expected := []net.IPNet{
getCIDR(net.ParseCIDR("192.168.1.2/16")),
getCIDR(net.ParseCIDR("fd00::/64")),
getCIDR(net.ParseCIDR("10.0.0.1/24")),
}
argfmt := "--cidrs=%s"
arg1 := fmt.Sprintf(argfmt, in[0])
arg2 := fmt.Sprintf(argfmt, in[1])
err := f.Parse([]string{arg1, arg2})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range cidrs {
if !equalCIDR(expected[i], v) {
t.Fatalf("expected cidrs[%d] to be %s but got: %s", i, expected[i], v)
}
}
}
func TestIPNetBadQuoting(t *testing.T) {
tests := []struct {
Want []net.IPNet
FlagArg []string
}{
{
Want: []net.IPNet{
getCIDR(net.ParseCIDR("a4ab:61d:f03e:5d7d:fad7:d4c2:a1a5:568/128")),
getCIDR(net.ParseCIDR("203.107.49.208/32")),
getCIDR(net.ParseCIDR("14.57.204.90/32")),
},
FlagArg: []string{
"a4ab:61d:f03e:5d7d:fad7:d4c2:a1a5:568/128",
"203.107.49.208/32",
"14.57.204.90/32",
},
},
{
Want: []net.IPNet{
getCIDR(net.ParseCIDR("204.228.73.195/32")),
getCIDR(net.ParseCIDR("86.141.15.94/32")),
},
FlagArg: []string{
"204.228.73.195/32",
"86.141.15.94/32",
},
},
{
Want: []net.IPNet{
getCIDR(net.ParseCIDR("c70c:db36:3001:890f:c6ea:3f9b:7a39:cc3f/128")),
getCIDR(net.ParseCIDR("4d17:1d6e:e699:bd7a:88c5:5e7e:ac6a:4472/128")),
},
FlagArg: []string{
"c70c:db36:3001:890f:c6ea:3f9b:7a39:cc3f/128",
"4d17:1d6e:e699:bd7a:88c5:5e7e:ac6a:4472/128",
},
},
{
Want: []net.IPNet{
getCIDR(net.ParseCIDR("5170:f971:cfac:7be3:512a:af37:952c:bc33/128")),
getCIDR(net.ParseCIDR("93.21.145.140/32")),
getCIDR(net.ParseCIDR("2cac:61d3:c5ff:6caf:73e0:1b1a:c336:c1ca/128")),
},
FlagArg: []string{
" 5170:f971:cfac:7be3:512a:af37:952c:bc33/128 , 93.21.145.140/32 ",
"2cac:61d3:c5ff:6caf:73e0:1b1a:c336:c1ca/128",
},
},
{
Want: []net.IPNet{
getCIDR(net.ParseCIDR("2e5e:66b2:6441:848:5b74:76ea:574c:3a7b/128")),
getCIDR(net.ParseCIDR("2e5e:66b2:6441:848:5b74:76ea:574c:3a7b/128")),
getCIDR(net.ParseCIDR("2e5e:66b2:6441:848:5b74:76ea:574c:3a7b/128")),
getCIDR(net.ParseCIDR("2e5e:66b2:6441:848:5b74:76ea:574c:3a7b/128")),
},
FlagArg: []string{
`"2e5e:66b2:6441:848:5b74:76ea:574c:3a7b/128, 2e5e:66b2:6441:848:5b74:76ea:574c:3a7b/128,2e5e:66b2:6441:848:5b74:76ea:574c:3a7b/128 "`,
" 2e5e:66b2:6441:848:5b74:76ea:574c:3a7b/128"},
},
}
for i, test := range tests {
var cidrs []net.IPNet
f := setUpIPNetFlagSet(&cidrs)
if err := f.Parse([]string{fmt.Sprintf("--cidrs=%s", strings.Join(test.FlagArg, ","))}); err != nil {
t.Fatalf("flag parsing failed with error: %s\nparsing:\t%#v\nwant:\t\t%s",
err, test.FlagArg, test.Want[i])
}
for j, b := range cidrs {
if !equalCIDR(b, test.Want[j]) {
t.Fatalf("bad value parsed for test %d on net.IP %d:\nwant:\t%s\ngot:\t%s", i, j, test.Want[j], b)
}
}
}
}