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template_test.go
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template_test.go
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package template_test
import (
"testing"
socktmpl "github.com/hashicorp/go-sockaddr/template"
)
func TestSockAddr_Parse(t *testing.T) {
tests := []struct {
name string
input string
output string
fail bool
requireOnline bool
}{
{
name: `basic include "name"`,
input: `{{GetAllInterfaces | include "name" "lo0" | printf "%v"}}`,
output: `[127.0.0.1/8 {1 16384 lo0 up|loopback|multicast} ::1 {1 16384 lo0 up|loopback|multicast} fe80::1/64 {1 16384 lo0 up|loopback|multicast}]`,
},
{
name: "invalid input",
input: `{{`,
output: ``,
fail: true,
},
{
name: "GetDefaultInterface",
input: `{{GetDefaultInterfaces | include "type" "IPv4" | attr "name" }}`,
output: `en0`,
},
{
name: `include "name" regexp`,
input: `{{GetAllInterfaces | include "name" "^(en|lo)0$" | exclude "name" "^en0$" | sort "type" | sort "address" | join "address" " " }}`,
output: `127.0.0.1 ::1 fe80::1`,
},
{
name: `exclude "name"`,
input: `{{. | include "name" "^(en|lo)0$" | exclude "name" "^en0$" | sort "type" | sort "address" | join "address" " " }}`,
output: `127.0.0.1 ::1 fe80::1`,
},
{
name: `"dot" pipeline, IPv4 type`,
input: `{{. | include "type" "IPv4" | include "name" "^lo0$" | sort "type" | sort "address" }}`,
output: `[127.0.0.1/8 {1 16384 lo0 up|loopback|multicast}]`,
},
{
name: `include "type" "IPv6`,
input: `{{. | include "type" "IPv6" | include "name" "^lo0$" | sort "address" }}`,
output: `[::1 {1 16384 lo0 up|loopback|multicast} fe80::1/64 {1 16384 lo0 up|loopback|multicast}]`,
},
{
name: "better example for IP types",
input: `{{. | include "type" "IPv4|IPv6" | include "name" "^lo0$" | sort "type" | sort "address" }}`,
output: `[127.0.0.1/8 {1 16384 lo0 up|loopback|multicast} ::1 {1 16384 lo0 up|loopback|multicast} fe80::1/64 {1 16384 lo0 up|loopback|multicast}]`,
},
{
name: "ifAddrs1",
input: `{{. | include "type" "IPv4" | include "name" "^lo0$"}}`,
output: `[127.0.0.1/8 {1 16384 lo0 up|loopback|multicast}]`,
},
{
name: "ifAddrs2",
input: `{{. | include "type" "IP" | include "name" "^lo0$" | sort "type" | sort "address" }}`,
output: `[127.0.0.1/8 {1 16384 lo0 up|loopback|multicast} ::1 {1 16384 lo0 up|loopback|multicast} fe80::1/64 {1 16384 lo0 up|loopback|multicast}]`,
},
{
name: `range "dot" example`,
input: `{{range . | include "type" "IP" | include "name" "^lo0$"}}{{.Name}} {{.SockAddr}} {{end}}`,
output: `lo0 127.0.0.1/8 lo0 ::1 lo0 fe80::1/64 `,
},
{
name: `exclude "type"`,
input: `{{. | exclude "type" "IPv4" | include "name" "^lo0$" | sort "address" | unique "name" | join "name" " "}} {{range . | exclude "type" "IPv4" | include "name" "^lo0$"}}{{.SockAddr}} {{end}}`,
output: `lo0 ::1 fe80::1/64 `,
},
{
name: "with variable pipeline",
input: `{{with $ifSet := include "type" "IPv4" . | include "name" "^lo0$"}}{{range $ifSet }}{{.Name}} {{end}}{{range $ifSet}}{{.SockAddr}} {{end}}{{end}}`,
output: `lo0 127.0.0.1/8 `,
},
{
name: "range sample on lo0",
input: `{{with $ifAddrs := . | exclude "rfc" "1918" | include "name" "lo0" | sort "type,address" }}{{range $ifAddrs }}{{.Name}}/{{.SockAddr.NetIP}} {{end}}{{end}}`,
output: `lo0/127.0.0.1 lo0/::1 lo0/fe80::1 `,
},
{
name: "non-RFC1918 on on lo0",
input: `{{. | exclude "rfc" "1918" | include "name" "lo0" | sort "type,address" | len | eq 3}}`,
output: `true`,
},
{
// NOTE(sean@): Difficult to reliably test includeByRFC.
// In this case, we ass-u-me that the host running the
// test has at least one RFC1918 address on their host.
name: `include "rfc"`,
input: `{{(. | include "rfc" "1918" | attr "name")}}`,
output: `en0`,
requireOnline: true,
},
{
name: "test for non-empty array",
input: `{{. | include "type" "IPv4" | include "rfc" "1918" | print | len | eq (len "[]")}}`,
output: `false`,
},
{
// NOTE(sean@): This will fail if there is a public IPv4 address on loopback.
name: "non-IPv4 RFC1918",
input: `{{. | include "name" "lo0" | exclude "type" "IPv4" | include "rfc" "1918" | len | eq 0}}`,
output: `true`,
},
{
// NOTE(sean@): There are no RFC6598 addresses on most testing hosts so this should be empty.
name: "rfc6598",
input: `{{. | include "type" "IPv4" | include "rfc" "6598" | print | len | eq (len "[]")}}`,
output: `true`,
},
{
name: "invalid RFC",
input: `{{. | include "type" "IPv4" | include "rfc" "99999999999" | print | len | eq (len "[]")}}`,
output: `true`,
fail: true,
},
{
name: `sort asc address`,
input: `{{ . | include "name" "lo0" | sort "type,address" | join "address" " " }}`,
output: `127.0.0.1 ::1 fe80::1`,
},
{
name: `sort asc address old`,
input: `{{with $ifSet := include "name" "lo0" . }}{{ range include "type" "IPv4" $ifSet | sort "address"}}{{ .SockAddr }} {{end}}{{ range include "type" "IPv6" $ifSet | sort "address"}}{{ .SockAddr }} {{end}}{{end}}`,
output: `127.0.0.1/8 ::1 fe80::1/64 `,
},
{
name: `sort desc address`,
input: `{{ . | include "name" "lo0" | sort "type,-address" | join "address" " " }}`,
output: `127.0.0.1 fe80::1 ::1`,
},
{
name: `sort desc address`,
input: `{{ . | include "name" "lo0" | include "type" "IPv6" | sort "type,-address" | join "address" " " }}`,
output: `fe80::1 ::1`,
},
{
name: `sort asc address`,
input: `{{with $ifSet := include "name" "lo0" . }}{{ range include "type" "IPv6" $ifSet | sort "address"}}{{ .SockAddr }} {{end}}{{end}}`,
output: `::1 fe80::1/64 `,
},
{
name: "lo0 limit 1",
input: `{{. | include "name" "lo0" | include "type" "IPv6" | sort "address" | limit 1 | len}}`,
output: `1`,
},
{
name: "join address",
input: `{{. | include "name" "lo0" | include "type" "IPv6" | sort "address" | join "address" " " }}`,
output: `::1 fe80::1`,
},
{
name: "join name",
input: `{{. | include "name" "lo0" | include "type" "IPv6" | sort "address" | join "name" " " }}`,
output: `lo0 lo0`,
},
{
name: "lo0 flags up and limit 1",
input: `{{. | include "name" "lo0" | include "flag" "up" | sort "-type,+address" | attr "address" }}`,
output: `::1`,
},
{
// NOTE(sean@): This is the HashiCorp default in 2016.
// Indented for effect. Using "true" as the output
// instead of printing the correct $rfc*Addrs values.
name: "HashiCorpDefault2016",
input: `
{{- with $addr := GetAllInterfaces | include "type" "IP" | include "rfc" "1918|6598" | sort "address" | attr "address" -}}
{{- if ($addr | len) gt 0 -}}
{{- print "true" -}}{{/* print $addr*/ -}}
{{- end -}}
{{- end -}}`,
output: `true`,
},
{
name: "math address +",
input: `{{GetAllInterfaces | include "name" "^lo0$" | include "type" "IP" | math "address" "+2" | sort "+type,+address" | join "address" " " }}`,
output: `127.0.0.3 ::3 fe80::3`,
},
{
name: "math address + overflow",
input: `|{{- with $ifAddrs := GetAllInterfaces | include "name" "^lo0$" | include "type" "IP" | math "address" "+16777217" | sort "+type,+address" -}}
{{- range $ifAddrs -}}
{{- attr "address" . }} -- {{ attr "network" . }}/{{ attr "size" . }}|{{ end -}}
{{- end -}}`,
output: `|128.0.0.2 -- 128.0.0.0/16777216|::100:2 -- ::100:2/1|fe80::100:2 -- fe80::/18446744073709551616|`,
},
{
name: "math address + overflow+wrap",
input: `{{GetAllInterfaces | include "name" "^lo0$" | include "type" "IP" | math "address" "+4294967294" | sort "+type,+address" | join "address" " " }}`,
output: `126.255.255.255 ::ffff:ffff fe80::ffff:ffff`,
},
{
name: "math address -",
input: `{{GetAllInterfaces | include "name" "^lo0$" | include "type" "IP" | math "address" "-256" | sort "+type,+address" | join "address" " " }}`,
output: `126.255.255.1 fe7f:ffff:ffff:ffff:ffff:ffff:ffff:ff01 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff01`,
},
{
name: "math address - underflow",
input: `{{GetAllInterfaces | include "name" "^lo0$" | include "type" "IP" | math "address" "-4278190082" | sort "+type,+address" | join "address" " " }}`,
output: `127.255.255.255 fe7f:ffff:ffff:ffff:ffff:ffff:ff:ffff ffff:ffff:ffff:ffff:ffff:ffff:ff:ffff`,
},
{
// Note to readers: lo0's link-local address (::1) address has a mask of
// /128 which means its value never changes and this is expected. lo0's
// site-local address has a /64 address and is expected to change.
name: "math network",
input: `{{GetAllInterfaces | include "name" "^lo0$" | include "type" "IP" | math "network" "+2" | sort "+type,+address" | join "address" " " }}`,
output: `127.0.0.2 ::1 fe80::2`,
},
{
// Assume an IPv4 input of 127.0.0.1. With a value of 0xff00ff01, we wrap once on purpose.
name: "math network + wrap",
input: `{{GetAllInterfaces | include "name" "^lo0$" | include "type" "IP" | math "network" "+4278255368" | sort "+type,+address" | join "address" " " }}`,
output: `127.0.255.8 ::1 fe80::ff00:ff08`,
},
{
name: "math network -",
input: `{{GetAllInterfaces | include "name" "^lo0$" | include "type" "IP" | math "network" "-2" | sort "+type,+address" | join "address" " " }}`,
output: `127.255.255.254 ::1 fe80::ffff:ffff:ffff:fffe`,
},
{
// Assume an IPv4 input of 127.0.0.1. With a value of 0xff000008 it
// should wrap and underflow by 8. Assume an IPv6 input of ::1. With a
// value of -0xff000008 the value underflows and wraps.
name: "math network - underflow+wrap",
input: `{{GetAllInterfaces | include "name" "^lo0$" | include "type" "IP" | sort "+type,+address" | math "network" "-4278190088" | join "address" " " }}`,
output: `127.255.255.248 ::1 fe80::ffff:ffff:ff:fff8`,
},
{
// Assume the private IPs available on the host are: 10.1.2.3
// fe80::1025:f732:1001:203
name: "GetPrivateIPs",
input: `{{GetPrivateIPs}}`,
output: `10.1.2.3 fe80::1025:f732:1001:203`,
},
{
// Assume the public IPs available on the host are: 1.2.3.4 6.7.8.9
name: "GetPublicIPs",
input: `{{GetPublicIPs}}`,
output: `1.2.3.4 6.7.8.9`,
},
{
// Assume the private IPs on this host are just the IPv4 addresses:
// 10.1.2.3 and 172.16.4.6
name: "GetInterfaceIPs",
input: `{{GetInterfaceIPs "en0"}}`,
output: `10.1.2.3 and 172.16.4.6`,
},
}
for i, test := range tests {
test := test // capture range variable
if test.name == "" {
t.Fatalf("test number %d has an empty test name", i)
}
t.Run(test.name, func(t *testing.T) {
t.Parallel()
out, err := socktmpl.Parse(test.input)
if err != nil && !test.fail {
t.Fatalf("%q: bad: %v", test.name, err)
}
if out != test.output && !test.fail {
t.Fatalf("%q: Expected %+q, received %+q\n%+q", test.name, test.output, out, test.input)
}
})
}
}