From: Daniel Swarbrick <dswarbrick@debian.org>
Date: Tue, 26 Aug 2025 14:42:06 +0200
Subject: Fix test skipping on big-endian archs

Origin: https://github.com/mdlayher/netlink/pull/228
---
 conn_linux_error_test.go | 4 ++--
 message_test.go          | 5 +++--
 nlenc/int_test.go        | 5 +++--
 nltest/nltest_test.go    | 4 ++--
 4 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/conn_linux_error_test.go b/conn_linux_error_test.go
index 97e6227..d7e9cfd 100644
--- a/conn_linux_error_test.go
+++ b/conn_linux_error_test.go
@@ -4,13 +4,13 @@
 package netlink_test
 
 import (
-	"encoding/binary"
 	"os"
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
 	"github.com/mdlayher/netlink"
 	"github.com/mdlayher/netlink/nltest"
+	"golang.org/x/sys/cpu"
 	"golang.org/x/sys/unix"
 )
 
@@ -115,7 +115,7 @@ func TestConnReceiveErrorLinux(t *testing.T) {
 }
 
 func skipBigEndian(t *testing.T) {
-	if binary.ByteOrder(binary.NativeEndian) == binary.BigEndian {
+	if cpu.IsBigEndian {
 		t.Skip("skipping test on big-endian system")
 	}
 }
diff --git a/message_test.go b/message_test.go
index 7a4b08d..ff7ed0c 100644
--- a/message_test.go
+++ b/message_test.go
@@ -2,10 +2,11 @@ package netlink
 
 import (
 	"bytes"
-	"encoding/binary"
 	"errors"
 	"reflect"
 	"testing"
+
+	"golang.org/x/sys/cpu"
 )
 
 func TestHeaderFlagsString(t *testing.T) {
@@ -474,7 +475,7 @@ func TestValidate(t *testing.T) {
 }
 
 func skipBigEndian(t *testing.T) {
-	if binary.ByteOrder(binary.NativeEndian) == binary.BigEndian {
+	if cpu.IsBigEndian {
 		t.Skip("skipping test on big-endian system")
 	}
 }
diff --git a/nlenc/int_test.go b/nlenc/int_test.go
index 09b9c08..cd6bb25 100644
--- a/nlenc/int_test.go
+++ b/nlenc/int_test.go
@@ -2,9 +2,10 @@ package nlenc
 
 import (
 	"bytes"
-	"encoding/binary"
 	"fmt"
 	"testing"
+
+	"golang.org/x/sys/cpu"
 )
 
 func TestUintPanic(t *testing.T) {
@@ -456,7 +457,7 @@ func TestInt32(t *testing.T) {
 }
 
 func skipBigEndian(t *testing.T) {
-	if NativeEndian() == binary.BigEndian {
+	if cpu.IsBigEndian {
 		t.Skip("skipping test on big-endian system")
 	}
 }
diff --git a/nltest/nltest_test.go b/nltest/nltest_test.go
index 3e251ac..49a45b4 100644
--- a/nltest/nltest_test.go
+++ b/nltest/nltest_test.go
@@ -2,7 +2,6 @@ package nltest_test
 
 import (
 	"bytes"
-	"encoding/binary"
 	"errors"
 	"io"
 	"reflect"
@@ -11,6 +10,7 @@ import (
 	"github.com/google/go-cmp/cmp"
 	"github.com/mdlayher/netlink"
 	"github.com/mdlayher/netlink/nltest"
+	"golang.org/x/sys/cpu"
 )
 
 func TestConnSend(t *testing.T) {
@@ -537,7 +537,7 @@ var noop = func(req []netlink.Message) ([]netlink.Message, error) {
 }
 
 func skipBigEndian(t *testing.T) {
-	if binary.ByteOrder(binary.NativeEndian) == binary.BigEndian {
+	if cpu.IsBigEndian {
 		t.Skip("skipping test on big-endian system")
 	}
 }