AdGuardHome/internal/aghnet/net_test.go
Eugene Burkov 3f5605c42e Pull request: 2846 cover aghnet vol.1
Merge in DNS/adguard-home from 2846-cover-aghnet-vol.1 to master

Updates #2846.

Squashed commit of the following:

commit 368e75b0bacb290f9929b8a5a682b06f2d75df6a
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Jan 21 19:11:59 2022 +0300

    aghnet: imp tests

commit 8bb3e2a1680fd30294f7c82693891ffb19474c6a
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Jan 21 18:27:06 2022 +0300

    aghnet: rm unused test

commit 28d8e64880f845810d0af629e5d1f06b9bde5b28
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Jan 21 18:18:22 2022 +0300

    aghnet: cover with tests
2022-01-21 19:21:38 +03:00

127 lines
2.7 KiB
Go

package aghnet
import (
"net"
"testing"
"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
"github.com/AdguardTeam/golibs/netutil"
"github.com/AdguardTeam/golibs/testutil"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestMain(m *testing.M) {
aghtest.DiscardLogOutput(m)
}
func TestGetInterfaceByIP(t *testing.T) {
ifaces, err := GetValidNetInterfacesForWeb()
require.NoError(t, err)
require.NotEmpty(t, ifaces)
for _, iface := range ifaces {
t.Run(iface.Name, func(t *testing.T) {
require.NotEmpty(t, iface.Addresses)
for _, ip := range iface.Addresses {
ifaceName := GetInterfaceByIP(ip)
require.Equal(t, iface.Name, ifaceName)
}
})
}
}
func TestBroadcastFromIPNet(t *testing.T) {
known6 := net.IP{
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16,
}
testCases := []struct {
name string
subnet *net.IPNet
want net.IP
}{{
name: "full",
subnet: &net.IPNet{
IP: net.IP{192, 168, 0, 1},
Mask: net.IPMask{255, 255, 15, 0},
},
want: net.IP{192, 168, 240, 255},
}, {
name: "ipv6_no_mask",
subnet: &net.IPNet{
IP: known6,
},
want: known6,
}, {
name: "ipv4_no_mask",
subnet: &net.IPNet{
IP: net.IP{192, 168, 1, 2},
},
want: net.IP{192, 168, 1, 255},
}, {
name: "unspecified",
subnet: &net.IPNet{
IP: net.IP{0, 0, 0, 0},
Mask: net.IPMask{0, 0, 0, 0},
},
want: net.IPv4bcast,
}}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
bc := BroadcastFromIPNet(tc.subnet)
assert.True(t, bc.Equal(tc.want), bc)
})
}
}
func TestCheckPort(t *testing.T) {
t.Run("tcp_bound", func(t *testing.T) {
l, err := net.Listen("tcp", "127.0.0.1:")
require.NoError(t, err)
testutil.CleanupAndRequireSuccess(t, l.Close)
ipp := netutil.IPPortFromAddr(l.Addr())
require.NotNil(t, ipp)
require.NotNil(t, ipp.IP)
require.NotZero(t, ipp.Port)
err = CheckPort("tcp", ipp.IP, ipp.Port)
target := &net.OpError{}
require.ErrorAs(t, err, &target)
assert.Equal(t, "listen", target.Op)
})
t.Run("udp_bound", func(t *testing.T) {
conn, err := net.ListenPacket("udp", "127.0.0.1:")
require.NoError(t, err)
testutil.CleanupAndRequireSuccess(t, conn.Close)
ipp := netutil.IPPortFromAddr(conn.LocalAddr())
require.NotNil(t, ipp)
require.NotNil(t, ipp.IP)
require.NotZero(t, ipp.Port)
err = CheckPort("udp", ipp.IP, ipp.Port)
target := &net.OpError{}
require.ErrorAs(t, err, &target)
assert.Equal(t, "listen", target.Op)
})
t.Run("bad_network", func(t *testing.T) {
err := CheckPort("bad_network", nil, 0)
assert.NoError(t, err)
})
t.Run("can_bind", func(t *testing.T) {
err := CheckPort("udp", net.IP{0, 0, 0, 0}, 0)
assert.NoError(t, err)
})
}