tailscale/net/interfaces/interfaces_default_route_test.go

// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build linux || (darwin && !ts_macext)

package interfaces

import (
	"testing"
)

func TestDefaultRouteInterface(t *testing.T) {
	// tests /proc/net/route on the local system, cannot make an assertion about
	// the correct interface name, but good as a sanity check.
	v, err := DefaultRouteInterface()
	if err != nil {
		t.Fatal(err)
	}
	t.Logf("got %q", v)
}