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package arp
import (
"net"
"net/netip"
"reflect"
"testing"
"time"
)
func TestClientClose(t *testing.T) {
p := &closeCapturePacketConn{}
c := &Client{p: p}
if err := c.Close(); err != nil {
t.Fatal(err)
}
if !p.closed {
t.Fatal("client was not closed")
}
}
func TestClientSetDeadline(t *testing.T) {
p := &deadlineCapturePacketConn{}
c := &Client{p: p}
d := time.Now()
if err := c.SetDeadline(d); err != nil {
t.Fatal(err)
}
if want, got := d, p.r; want != got {
t.Fatalf("unexpected read deadline: %v != %v", want, got)
}
if want, got := d, p.w; want != got {
t.Fatalf("unexpected write deadline: %v != %v", want, got)
}
}
func TestClientSetReadDeadline(t *testing.T) {
p := &deadlineCapturePacketConn{}
c := &Client{p: p}
d := time.Now()
if err := c.SetReadDeadline(d); err != nil {
t.Fatal(err)
}
if want, got := d, p.r; want != got {
t.Fatalf("unexpected read deadline: %v != %v", want, got)
}
if want, got := (time.Time{}), p.w; want != got {
t.Fatalf("non-zero write deadline: %v", got)
}
}
func TestClientSetWriteDeadline(t *testing.T) {
p := &deadlineCapturePacketConn{}
c := &Client{p: p}
d := time.Now()
if err := c.SetWriteDeadline(d); err != nil {
t.Fatal(err)
}
if want, got := (time.Time{}), p.r; want != got {
t.Fatalf("non-zero read deadline: %v", got)
}
if want, got := d, p.w; want != got {
t.Fatalf("unexpected write deadline: %v != %v", want, got)
}
}
func TestClientHardwareAddr(t *testing.T) {
c := &Client{
ifi: &net.Interface{
HardwareAddr: net.HardwareAddr{0, 1, 2, 3, 4, 5},
},
}
if want, got := c.ifi.HardwareAddr.String(), c.HardwareAddr().String(); want != got {
t.Fatalf("unexpected hardware address: %v != %v", want, got)
}
}
func Test_newClient(t *testing.T) {
tests := []struct {
desc string
addrs []netip.Addr
c *Client
err error
}{
{
desc: "no network addresses",
c: &Client{},
err: errNoIPv4Addr,
},
{
desc: "OK",
addrs: []netip.Addr{
netip.MustParseAddr("192.168.1.1"),
},
c: &Client{
ip: netip.MustParseAddr("192.168.1.1"),
},
},
}
for i, tt := range tests {
c, err := newClient(nil, nil, tt.addrs)
if err != nil {
if want, got := tt.err.Error(), err.Error(); want != got {
t.Fatalf("[%02d] test %q, unexpected error: %v != %v",
i, tt.desc, want, got)
}
continue
}
if want, got := tt.c, c; !reflect.DeepEqual(want, got) {
t.Fatalf("[%02d] test %q, unexpected Client: %v != %v",
i, tt.desc, want, got)
}
}
}
type closeCapturePacketConn struct {
closed bool
noopPacketConn
}
func (p *closeCapturePacketConn) Close() error {
p.closed = true
return nil
}
// deadlineCapturePacketConn is a net.PacketConn which captures read and
// write deadlines.
type deadlineCapturePacketConn struct {
r time.Time
w time.Time
noopPacketConn
}
func (p *deadlineCapturePacketConn) SetDeadline(t time.Time) error {
p.r = t
p.w = t
return nil
}
func (p *deadlineCapturePacketConn) SetReadDeadline(t time.Time) error {
p.r = t
return nil
}
func (p *deadlineCapturePacketConn) SetWriteDeadline(t time.Time) error {
p.w = t
return nil
}
// noopPacketConn is a net.PacketConn which simply no-ops any input. It is
// embedded in other implementations so they do not have to implement every
// single method.
type noopPacketConn struct{}
func (noopPacketConn) ReadFrom(b []byte) (int, net.Addr, error) { return 0, nil, nil }
func (noopPacketConn) WriteTo(b []byte, addr net.Addr) (int, error) { return 0, nil }
func (noopPacketConn) Close() error { return nil }
func (noopPacketConn) LocalAddr() net.Addr { return nil }
func (noopPacketConn) SetDeadline(t time.Time) error { return nil }
func (noopPacketConn) SetReadDeadline(t time.Time) error { return nil }
func (noopPacketConn) SetWriteDeadline(t time.Time) error { return nil }
func (noopPacketConn) HardwareAddr() net.HardwareAddr { return nil }
|
