constellation/cli/vpn/configurer_test.go

101 lines
2.5 KiB
Go
Raw Normal View History

package vpn
import (
"fmt"
"net"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/vishvananda/netlink"
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
)
type stubNetworkLink struct {
link netlink.Link
addr string
up bool
}
func newStubNetworkLink() *stubNetworkLink {
return &stubNetworkLink{}
}
func (s *stubNetworkLink) LinkAdd(link netlink.Link) error {
s.link = link
return nil
}
func (s *stubNetworkLink) LinkByName(name string) (netlink.Link, error) {
if name != s.link.Attrs().Name {
return nil, fmt.Errorf("could not find interface with name %v", name)
}
return s.link, nil
}
func (s *stubNetworkLink) ParseAddr(addr string) (*netlink.Addr, error) {
return netlink.ParseAddr(addr)
}
func (s *stubNetworkLink) AddrAdd(link netlink.Link, addr *netlink.Addr) error {
if link.Attrs().Name != s.link.Attrs().Name {
return fmt.Errorf("could not find interface with name %v", link.Attrs().Name)
}
s.addr = addr.IP.String()
return nil
}
func (s *stubNetworkLink) LinkSetUp(link netlink.Link) error {
if link.Attrs().Name != s.link.Attrs().Name {
return fmt.Errorf("could not find interface with name %v", link.Attrs().Name)
}
s.up = true
return nil
}
type stubVPN struct {
name string
config wgtypes.Config
}
func newStubVPN() *stubVPN {
return &stubVPN{}
}
func (s *stubVPN) ConfigureDevice(name string, cfg wgtypes.Config) error {
s.name = name
s.config = cfg
return nil
}
func TestVPNClient(t *testing.T) {
assert := assert.New(t)
require := require.New(t)
link := newStubNetworkLink()
vpn := newStubVPN()
client, err := New(link, vpn)
require.NoError(err)
coordinatorPubKey, err := wgtypes.GenerateKey()
require.NoError(err)
clientPrivKey, err := wgtypes.GenerateKey()
require.NoError(err)
clientVpnIp := "192.0.2.1"
coordinatorPubIp := "192.0.2.2"
assert.NoError(client.Configure(clientVpnIp, coordinatorPubKey.String(), coordinatorPubIp, clientPrivKey.String()))
// assert expected interface
assert.Equal(interfaceName, link.link.Attrs().Name)
assert.NotNil(link.addr)
assert.True(link.up)
// assert vpn config
config := client.vpn.(*stubVPN).config
assert.Equal(wireguardPort, *config.ListenPort)
assert.Equal(clientPrivKey, *config.PrivateKey)
assert.Less(0, len(config.Peers))
assert.Equal(coordinatorPubKey, config.Peers[0].PublicKey)
assert.Equal(net.JoinHostPort(coordinatorPubIp, "51820"), config.Peers[0].Endpoint.String())
assert.Equal("10.118.0.1/32", config.Peers[0].AllowedIPs[0].String())
}