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|
package wgconf
import (
"os"
"path/filepath"
"reflect"
"testing"
)
func TestParseConfig(t *testing.T) {
content := `[Interface]
PrivateKey = ABC123XYZ
Address = 10.0.0.1/24
DNS = 1.1.1.1
[Peer]
PublicKey = DEF456UVW
Endpoint = 1.2.3.4:51820
AllowedIPs = 0.0.0.0/0
[Peer]
PublicKey = GHI789TSR
Endpoint = 5.6.7.8:51820
AllowedIPs = 192.168.1.0/24, 192.168.2.0/24`
tmpFile := filepath.Join(t.TempDir(), "test.conf")
if err := os.WriteFile(tmpFile, []byte(content), 0644); err != nil {
t.Fatal(err)
}
cfg, err := Parse(tmpFile)
if err != nil {
t.Fatalf("Parse failed: %v", err)
}
if cfg.PrivateKey != "ABC123XYZ" {
t.Errorf("expected PrivateKey ABC123XYZ, got %s", cfg.PrivateKey)
}
if cfg.Address != "10.0.0.1/24" {
t.Errorf("expected Address 10.0.0.1/24, got %s", cfg.Address)
}
if cfg.DNS != "1.1.1.1" {
t.Errorf("expected DNS 1.1.1.1, got %s", cfg.DNS)
}
if len(cfg.Peers) != 2 {
t.Fatalf("expected 2 peers, got %d", len(cfg.Peers))
}
p1 := cfg.Peers[0]
if p1.PublicKey != "DEF456UVW" || p1.Endpoint != "1.2.3.4:51820" || len(p1.AllowedIPs) != 1 || p1.AllowedIPs[0] != "0.0.0.0/0" {
t.Errorf("Peer 1 mismatch: %+v", p1)
}
p2 := cfg.Peers[1]
if p2.PublicKey != "GHI789TSR" || p2.Endpoint != "5.6.7.8:51820" || len(p2.AllowedIPs) != 2 || p2.AllowedIPs[0] != "192.168.1.0/24" {
t.Errorf("Peer 2 mismatch: %+v", p2)
}
}
func TestParseInvalidConfig(t *testing.T) {
content := `[Interface]
InvalidLineWithoutEquals`
tmpFile := filepath.Join(t.TempDir(), "invalid.conf")
if err := os.WriteFile(tmpFile, []byte(content), 0644); err != nil {
t.Fatal(err)
}
_, err := Parse(tmpFile)
if err == nil {
t.Error("expected error for invalid line format, got nil")
}
}
func TestParseConfigInTheWildEdgeCases(t *testing.T) {
tests := []struct {
name string
content string
want *Config
wantErr bool
}{
{
name: "Case insensitivity for sections and keys",
content: `
[interface]
privatekey = my-private-key
address = 10.0.1.2/24
dns = 8.8.8.8
[peer]
publickey = peer-public-key
endpoint = 5.5.5.5:51820
allowedips = 10.0.1.0/24, fd00::1/64
`,
want: &Config{
PrivateKey: "my-private-key",
Address: "10.0.1.2/24",
DNS: "8.8.8.8",
Peers: []Peer{
{
PublicKey: "peer-public-key",
Endpoint: "5.5.5.5:51820",
AllowedIPs: []string{"10.0.1.0/24", "fd00::1/64"},
},
},
},
},
{
name: "Inline and block comments",
content: `
# This is a whole-line comment
; This is another whole-line comment starting with semicolon
[Interface]
PrivateKey = key-with-hash-inside#123 # Comment at end of line
Address = 10.0.0.1/24 ; inline semicolon comment
DNS = 1.1.1.1 # DNS fallback
[Peer]
PublicKey = peerkey ; comment here
# This is a comment between fields
Endpoint = 1.1.1.1:1111
AllowedIPs = 10.0.0.0/24, 10.0.1.0/24 # comment at the end of allowed ips
`,
want: &Config{
PrivateKey: "key-with-hash-inside#123",
Address: "10.0.0.1/24",
DNS: "1.1.1.1",
Peers: []Peer{
{
PublicKey: "peerkey",
Endpoint: "1.1.1.1:1111",
AllowedIPs: []string{"10.0.0.0/24", "10.0.1.0/24"},
},
},
},
},
{
name: "Crazy whitespaces and tabs",
content: `
[Interface]
PrivateKey = key123
Address = 10.0.0.2/24
DNS = 9.9.9.9
[Peer]
PublicKey = key456
Endpoint = 2.2.2.2:2222
AllowedIPs = 192.168.1.1/32 , 192.168.1.2/32
`,
want: &Config{
PrivateKey: "key123",
Address: "10.0.0.2/24",
DNS: "9.9.9.9",
Peers: []Peer{
{
PublicKey: "key456",
Endpoint: "2.2.2.2:2222",
AllowedIPs: []string{"192.168.1.1/32", "192.168.1.2/32"},
},
},
},
},
{
name: "Ignore unrecognized keys under Interface and Peer",
content: `
[Interface]
PrivateKey = pk
Address = 10.0.0.1/24
ListenPort = 51820
FwMark = 1234
MTU = 1420
PostUp = iptables -A FORWARD -i %i -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
PostDown = iptables -D FORWARD -i %i -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE
[Peer]
PublicKey = pubk
PresharedKey = preshared_key_abc
Endpoint = 3.3.3.3:3333
AllowedIPs = 0.0.0.0/0
PersistentKeepalive = 25
`,
want: &Config{
PrivateKey: "pk",
Address: "10.0.0.1/24",
DNS: "",
Peers: []Peer{
{
PublicKey: "pubk",
Endpoint: "3.3.3.3:3333",
AllowedIPs: []string{"0.0.0.0/0"},
},
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
tmpFile := filepath.Join(t.TempDir(), "test_wild.conf")
if err := os.WriteFile(tmpFile, []byte(tt.content), 0644); err != nil {
t.Fatal(err)
}
cfg, err := Parse(tmpFile)
if (err != nil) != tt.wantErr {
t.Fatalf("Parse() error = %v, wantErr %v", err, tt.wantErr)
}
if err == nil {
if !reflect.DeepEqual(cfg, tt.want) {
t.Errorf("Parse() got = %+v, want = %+v", cfg, tt.want)
}
}
})
}
}
|
