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//go:build linux
// +build linux
package ethtool_test
import (
"errors"
"os"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/mdlayher/ethtool"
"github.com/mdlayher/netlink"
)
func TestIntegrationClientLinkInfos(t *testing.T) {
// Make sure the basic netlink plumbing is in place without requiring the
// use of any privileged operations.
c, err := ethtool.New()
if err != nil {
if errors.Is(err, os.ErrNotExist) {
t.Skip("skipping, ethtool genetlink not found")
}
t.Fatalf("failed to open client: %v", err)
}
defer c.Close()
lis, err := c.LinkInfos()
if err != nil {
if errors.Is(err, os.ErrNotExist) {
t.Skipf("skipping, operation not supported: %v", err)
}
t.Fatalf("failed to fetch link infos: %v", err)
}
for _, li := range lis {
t.Logf("%d: %q: %s", li.Interface.Index, li.Interface.Name, li.Port)
}
}
func TestIntegrationClientNetlinkStrict(t *testing.T) {
c, err := ethtool.New()
if err != nil {
if errors.Is(err, os.ErrNotExist) {
t.Skip("skipping, ethtool genetlink not found")
}
t.Fatalf("failed to open client: %v", err)
}
_, err = c.LinkInfo(ethtool.Interface{Name: "notexist0"})
if err == nil {
t.Fatal("expected an error, but none occurred")
}
var eerr *ethtool.Error
if !errors.As(err, &eerr) {
t.Fatalf("expected outer wrapped *ethtool.Error, but got: %T", err)
}
// The underlying error is *netlink.OpError but for the purposes of this
// test, all we really care about is that the kernel produced an error
// message regarding a non-existent device. This means that the netlink
// Strict option plumbing is working.
var nerr *netlink.OpError
if !errors.As(eerr, &nerr) {
t.Fatalf("expected inner wrapped *netlink.OpError, but got: %T", eerr)
}
eerr.Err = nil
want := ðtool.Error{Message: "no device matches name"}
if diff := cmp.Diff(want, eerr); diff != "" {
t.Fatalf("unexpected *ethtool.Error (-want +got):\n%s", diff)
}
}
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