AdGuardHome/internal/dhcpsvc/v4_internal_test.go
Eugene Burkov 79d7a1ef46 Pull request 2096: 4923 gopacket dhcp vol.5
Updates #4923.

Squashed commit of the following:

commit 762a3f9b7d7d4dd8799e8bf4df632b8d50321bf8
Merge: 2af65b42a 34a34dc05
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Dec 12 11:13:21 2023 +0300

    Merge branch 'master' into 4923-gopacket-dhcp-vol.5

commit 2af65b42a62b92ec5bc28ef81eb6f08d0f9f443e
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Dec 8 16:22:51 2023 +0300

    dhcpsvc: imp code

commit 71233b9952b0d74e7e890d6755652877bc4c543b
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Dec 8 15:26:25 2023 +0300

    dhcpsvc: imp docs

commit 2949544f32b52d592f76e53062cf017e08073d29
Merge: 593e9edaa 214175eb4
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 7 16:48:18 2023 +0300

    Merge branch 'master' into 4923-gopacket-dhcp-vol.5

commit 593e9edaa9e776db35b3bedfa942c015d7b1e4af
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 7 16:45:10 2023 +0300

    dhcpsvc: imp docs

commit cdb1915c7db3bf36800b40bc6aedc0e20f55f899
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Dec 7 16:33:56 2023 +0300

    dhcpsvc: imp code

commit a0c423c2b39d674debf4c0fedf6208f656be861a
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Dec 5 20:56:43 2023 +0300

    dnspsvc: add opts

commit 050ab7f9410c206287c66376e21d36af8a3da384
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Dec 5 20:17:37 2023 +0300

    WIP
2023-12-12 12:05:44 +03:00

88 lines
2.2 KiB
Go

package dhcpsvc
import (
"net/netip"
"testing"
"github.com/google/gopacket/layers"
"github.com/stretchr/testify/assert"
)
func TestIPv4Config_Options(t *testing.T) {
oneIP, otherIP := netip.MustParseAddr("1.2.3.4"), netip.MustParseAddr("5.6.7.8")
subnetMask := netip.MustParseAddr("255.255.0.0")
opt1 := layers.NewDHCPOption(layers.DHCPOptSubnetMask, subnetMask.AsSlice())
opt6 := layers.NewDHCPOption(layers.DHCPOptDNS, append(oneIP.AsSlice(), otherIP.AsSlice()...))
opt28 := layers.NewDHCPOption(layers.DHCPOptBroadcastAddr, oneIP.AsSlice())
opt121 := layers.NewDHCPOption(layers.DHCPOptClasslessStaticRoute, []byte("cba"))
testCases := []struct {
name string
conf *IPv4Config
wantExplicit layers.DHCPOptions
}{{
name: "all_default",
conf: &IPv4Config{
Options: nil,
},
wantExplicit: nil,
}, {
name: "configured_ip",
conf: &IPv4Config{
Options: layers.DHCPOptions{opt28},
},
wantExplicit: layers.DHCPOptions{opt28},
}, {
name: "configured_ips",
conf: &IPv4Config{
Options: layers.DHCPOptions{opt6},
},
wantExplicit: layers.DHCPOptions{opt6},
}, {
name: "configured_del",
conf: &IPv4Config{
Options: layers.DHCPOptions{
layers.NewDHCPOption(layers.DHCPOptBroadcastAddr, nil),
},
},
wantExplicit: nil,
}, {
name: "rewritten_del",
conf: &IPv4Config{
Options: layers.DHCPOptions{
layers.NewDHCPOption(layers.DHCPOptBroadcastAddr, nil),
opt28,
},
},
wantExplicit: layers.DHCPOptions{opt28},
}, {
name: "configured_and_del",
conf: &IPv4Config{
Options: layers.DHCPOptions{
layers.NewDHCPOption(layers.DHCPOptClasslessStaticRoute, []byte("a")),
layers.NewDHCPOption(layers.DHCPOptClasslessStaticRoute, nil),
opt121,
},
},
wantExplicit: layers.DHCPOptions{opt121},
}, {
name: "replace_config_value",
conf: &IPv4Config{
SubnetMask: netip.MustParseAddr("255.255.255.0"),
Options: layers.DHCPOptions{opt1},
},
wantExplicit: layers.DHCPOptions{opt1},
}}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
imp, exp := tc.conf.options()
assert.Equal(t, tc.wantExplicit, exp)
for c := range exp {
assert.NotContains(t, imp, c)
}
})
}
}