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k3s/pkg/cloudprovider/servicelb_test.go

114 lines
2.3 KiB

package cloudprovider
import (
"math/rand"
"reflect"
"testing"
core "k8s.io/api/core/v1"
)
const (
addrv4 = "1.2.3.4"
addrv4_2 = "2.3.4.5"
addrv6 = "2001:db8::1"
addrv6_2 = "3001:db8::1"
)
func Test_UnitFilterByIPFamily(t *testing.T) {
type args struct {
ips []string
svc *core.Service
}
tests := []struct {
name string
args args
want []string
wantErr bool
}{
{
name: "No IPFamily",
args: args{
ips: []string{addrv4, addrv6},
svc: &core.Service{
Spec: core.ServiceSpec{
IPFamilies: []core.IPFamily{},
},
},
},
want: nil,
wantErr: false,
},
{
name: "IPv4 Only",
args: args{
ips: []string{addrv4, addrv6},
svc: &core.Service{
Spec: core.ServiceSpec{
IPFamilies: []core.IPFamily{core.IPv4Protocol},
},
},
},
want: []string{addrv4},
wantErr: false,
},
{
name: "IPv6 Only",
args: args{
ips: []string{addrv4, addrv6},
svc: &core.Service{
Spec: core.ServiceSpec{
IPFamilies: []core.IPFamily{core.IPv6Protocol},
},
},
},
want: []string{addrv6},
wantErr: false,
},
{
name: "Dual-Stack",
args: args{
ips: []string{addrv4, addrv6},
svc: &core.Service{
Spec: core.ServiceSpec{
IPFamilies: []core.IPFamily{core.IPv4Protocol, core.IPv6Protocol},
},
},
},
want: []string{addrv4, addrv6},
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := filterByIPFamily(tt.args.ips, tt.args.svc)
if (err != nil) != tt.wantErr {
t.Errorf("filterByIPFamily() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("filterByIPFamily() = %+v\nWant = %+v", got, tt.want)
}
})
}
}
func Test_UnitFilterByIPFamily_Ordering(t *testing.T) {
want := []string{addrv4, addrv4_2, addrv6, addrv6_2}
ips := []string{addrv4, addrv4_2, addrv6, addrv6_2}
rand.Shuffle(len(ips), func(i, j int) {
ips[i], ips[j] = ips[j], ips[i]
})
svc := &core.Service{
Spec: core.ServiceSpec{
IPFamilies: []core.IPFamily{core.IPv4Protocol, core.IPv6Protocol},
},
}
got, _ := filterByIPFamily(ips, svc)
if !reflect.DeepEqual(got, want) {
t.Errorf("filterByIPFamily() = %+v\nWant = %+v", got, want)
}
}