AdGuardHome/internal/aghnet/net_test.go
Eugene Burkov 7528699fc2 cherry-pick: 3987 Fix nil pointer dereference
Merge in DNS/adguard-home from 3987-fix-nil-deref to master

Updates #3987.
Updates #2846.

Squashed commit of the following:

commit d653e09ce88a8b10b2a17fea1563c419895c714c
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 23 20:08:51 2021 +0300

    all: log changes

commit c47a4eeacf76fa7df2d01af166dee9d52528ac58
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 23 19:22:39 2021 +0300

    aghnet: fix windows tests

commit 9c91f14ccfe967ada3c00ddb86d673238e52c12d
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 23 19:09:49 2021 +0300

    aghnet: imp code readability, docs

commit d3df15d1892e4ebfe7f8ea7144e39a0c712fce52
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 23 18:47:28 2021 +0300

    aghnet: fix nil pointer dereference
2021-12-24 22:41:10 +03:00

90 lines
1.9 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 TestGetValidNetInterfacesForWeb(t *testing.T) {
ifaces, err := GetValidNetInterfacesForWeb()
require.NoErrorf(t, err, "cannot get net interfaces: %s", err)
require.NotEmpty(t, ifaces, "no net interfaces found")
for _, iface := range ifaces {
require.NotEmptyf(t, iface.Addresses, "no addresses found for %s", iface.Name)
}
}
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) {
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)
}