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|
package zdns
import (
"fmt"
"strings"
"testing"
"time"
)
func TestConfig(t *testing.T) {
text := `
[dns]
listen = "0.0.0.0:53"
protocol = "udp"
cache_size = 2048
resolvers = [
"192.0.2.1:53",
"192.0.2.2:53=example.com",
]
hijack_mode = "zero" # or: empty, hosts
hosts_refresh_interval = "48h"
database = "/tmp/log.db"
log_mode = "all"
log_ttl = "72h"
[resolver]
protocol = "tcp-tls" # or: "", "udp", "tcp"
timeout = "1s"
[[hosts]]
url = "file:///home/foo/hosts-good"
hijack = false
[[hosts]]
url = "https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts"
timeout = "10s"
hijack = true
[[hosts]]
entries = [
"0.0.0.0 goodhost1",
"0.0.0.0 goodhost2",
]
hijack = false
`
r := strings.NewReader(text)
conf, err := ReadConfig(r)
if err != nil {
t.Fatal(err)
}
var intTests = []struct {
field string
got int
want int
}{
{"DNS.CacheSize", conf.DNS.CacheSize, 2048},
{"len(DNS.Resolvers)", len(conf.DNS.Resolvers), 2},
{"Resolver.Timeout", int(conf.Resolver.Timeout), int(time.Second)},
{"DNS.RefreshInterval", int(conf.DNS.refreshInterval), int(48 * time.Hour)},
{"len(Hosts)", len(conf.Hosts), 3},
{"DNS.LogTTL", int(conf.DNS.LogTTL), int(72 * time.Hour)},
}
for i, tt := range intTests {
if tt.got != tt.want {
t.Errorf("#%d: %s = %d, want %d", i, tt.field, tt.got, tt.want)
}
}
var stringTests = []struct {
field string
got string
want string
}{
{"DNS.Listen", conf.DNS.Listen, "0.0.0.0:53"},
{"DNS.Protocol", conf.DNS.Protocol, "udp"},
{"DNS.Resolvers[0]", conf.DNS.Resolvers[0], "192.0.2.1:53"},
{"DNS.Resolvers[1]", conf.DNS.Resolvers[1], "192.0.2.2:53=example.com"},
{"DNS.HijackMode", conf.DNS.HijackMode, "zero"},
{"DNS.Database", conf.DNS.Database, "/tmp/log.db"},
{"DNS.LogMode", conf.DNS.LogModeString, "all"},
{"DNS.LogTTL", conf.DNS.LogTTLString, "72h"},
{"Resolver.Protocol", conf.Resolver.Protocol, "tcp-tls"},
{"Hosts[0].Source", conf.Hosts[0].URL, "file:///home/foo/hosts-good"},
{"Hosts[1].Source", conf.Hosts[1].URL, "https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts"},
{"Hosts[1].Timeout", conf.Hosts[1].Timeout, "10s"},
{"Hosts[2].hosts", fmt.Sprintf("%+v", conf.Hosts[2].hosts), "map[goodhost1:[{IP:0.0.0.0 Zone:}] goodhost2:[{IP:0.0.0.0 Zone:}]]"},
}
for i, tt := range stringTests {
if tt.got != tt.want {
t.Errorf("#%d: %s = %q, want %q", i, tt.field, tt.got, tt.want)
}
}
var boolTests = []struct {
field string
got bool
want bool
}{
{"Hosts[0].Hijack", conf.Hosts[0].Hijack, false},
{"Hosts[1].Hijack", conf.Hosts[1].Hijack, true},
}
for i, tt := range boolTests {
if tt.got != tt.want {
t.Errorf("#%d: %s = %t, want %t", i, tt.field, tt.got, tt.want)
}
}
}
func TestConfigErrors(t *testing.T) {
baseConf := "[dns]\nlisten = \"0.0.0.0:53\"\n"
conf0 := baseConf + "cache_size = -1"
conf1 := baseConf + `
hijack_mode = "foo"
`
conf2 := baseConf + `
hosts_refresh_interval = "foo"
`
conf3 := baseConf + `
hosts_refresh_interval = "-1h"
`
conf4 := baseConf + `
resolvers = ["foo"]
`
conf5 := baseConf + `
[resolver]
protocol = "foo"
`
conf6 := baseConf + `
[resolver]
timeout = "foo"
`
conf7 := baseConf + `
[resolver]
timeout = "-1s"
`
conf8 := baseConf + `
[[hosts]]
url = ":foo"
`
conf9 := baseConf + `
[[hosts]]
url = "foo://bar"
`
conf10 := baseConf + `
[[hosts]]
url = "file:///tmp/foo"
timeout = "1s"
`
conf11 := baseConf + `
[[hosts]]
entries = ["0.0.0.0 host1"]
timeout = "1s"
`
conf12 := baseConf + `
log_mode = "foo"
[resolver]
timeout = "1s"
`
conf13 := baseConf + `
log_mode = "hijacked"
[resolver]
timeout = "1s"
`
conf14 := baseConf + `
resolvers = ["http://example.com"]
[resolver]
protocol = "https"
`
conf15 := baseConf + `
cache_persist = true
`
var tests = []struct {
in string
err string
}{
{conf0, "cache size must be >= 0"},
{conf1, "invalid hijack mode: foo"},
{conf2, "invalid refresh interval: time: invalid duration \"foo\""},
{conf3, "refresh interval must be >= 0"},
{conf4, "invalid resolver: address foo: missing port in address"},
{conf5, "invalid resolver protocol: foo"},
{conf6, "invalid resolver timeout: foo"},
{conf7, "resolver timeout must be >= 0"},
{conf8, ":foo: invalid url: parse \":foo\": missing protocol scheme"},
{conf9, "foo://bar: unsupported scheme: foo"},
{conf10, "file:///tmp/foo: timeout cannot be set for file url"},
{conf11, "[0.0.0.0 host1]: timeout cannot be set for inline hosts"},
{conf12, "invalid log mode: foo"},
{conf13, `log_mode = "hijacked" requires 'database' to be set`},
{conf14, "protocol https requires https scheme for resolver http://example.com"},
{conf15, "cache_persist = true requires 'database' to be set"},
}
for i, tt := range tests {
var got string
_, err := ReadConfig(strings.NewReader(tt.in))
if err != nil {
got = err.Error()
}
if got != tt.err {
t.Errorf("#%d: want %q, got %q", i, tt.err, got)
}
}
}
|
