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package dhcpv4
import (
"net"
"reflect"
"testing"
)
func mustParseIPNet(s string) *net.IPNet {
_, ipnet, err := net.ParseCIDR(s)
if err != nil {
panic(err)
}
return ipnet
}
func TestParseRoutes(t *testing.T) {
for _, tt := range []struct {
p []byte
want Routes
wantErr bool
}{
{
p: []byte{32, 10, 2, 3, 4, 0, 0, 0, 0},
want: Routes{
&Route{
Dest: mustParseIPNet("10.2.3.4/32"),
Router: net.IP{0, 0, 0, 0},
},
},
},
{
p: []byte{0, 0, 0, 0, 0},
want: Routes{
&Route{
Dest: mustParseIPNet("0.0.0.0/0"),
Router: net.IP{0, 0, 0, 0},
},
},
},
{
p: []byte{32, 10, 2, 3, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0},
want: Routes{
&Route{
Dest: mustParseIPNet("10.2.3.4/32"),
Router: net.IP{0, 0, 0, 0},
},
&Route{
Dest: mustParseIPNet("0.0.0.0/0"),
Router: net.IP{0, 0, 0, 0},
},
},
},
{
p: []byte{64, 10, 2, 3, 4},
wantErr: true, // Mask length 64 > 32
},
} {
var r Routes
if err := r.FromBytes(tt.p); (err != nil) != tt.wantErr {
t.Errorf("FromBytes(%v) Unexpected error state: %v", tt.p, err)
}
if !reflect.DeepEqual(r, tt.want) {
t.Errorf("FromBytes(%v) = %v, want %v", tt.p, r, tt.want)
}
}
}
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