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https://github.com/netbirdio/netbird.git
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a78fd69f80
Added host configurators for Linux, Windows, and macOS. The host configurator will update the peer system configuration directing DNS queries according to its capabilities. Some Linux distributions don't support split (match) DNS or custom ports, and that will be reported to our management system in another PR
87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
package dns
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import (
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"github.com/miekg/dns"
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nbdns "github.com/netbirdio/netbird/dns"
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"strings"
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"testing"
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)
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func TestLocalResolver_ServeDNS(t *testing.T) {
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recordA := nbdns.SimpleRecord{
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Name: "peera.netbird.cloud.",
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Type: 1,
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Class: nbdns.DefaultClass,
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TTL: 300,
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RData: "1.2.3.4",
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}
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recordCNAME := nbdns.SimpleRecord{
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Name: "peerb.netbird.cloud.",
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Type: 5,
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Class: nbdns.DefaultClass,
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TTL: 300,
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RData: "www.netbird.io",
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}
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testCases := []struct {
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name string
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inputRecord nbdns.SimpleRecord
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inputMSG *dns.Msg
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responseShouldBeNil bool
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}{
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{
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name: "Should Resolve A Record",
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inputRecord: recordA,
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inputMSG: new(dns.Msg).SetQuestion(recordA.Name, dns.TypeA),
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},
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{
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name: "Should Resolve CNAME Record",
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inputRecord: recordCNAME,
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inputMSG: new(dns.Msg).SetQuestion(recordCNAME.Name, dns.TypeCNAME),
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},
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{
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name: "Should Not Write When Not Found A Record",
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inputRecord: recordA,
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inputMSG: new(dns.Msg).SetQuestion("not.found.com", dns.TypeA),
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responseShouldBeNil: true,
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},
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}
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for _, testCase := range testCases {
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t.Run(testCase.name, func(t *testing.T) {
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resolver := &localResolver{
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registeredMap: make(registrationMap),
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}
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_ = resolver.registerRecord(testCase.inputRecord)
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var responseMSG *dns.Msg
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responseWriter := &mockResponseWriter{
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WriteMsgFunc: func(m *dns.Msg) error {
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responseMSG = m
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return nil
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},
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}
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resolver.ServeDNS(responseWriter, testCase.inputMSG)
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if responseMSG == nil || len(responseMSG.Answer) == 0 {
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if testCase.responseShouldBeNil {
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return
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}
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t.Fatalf("should write a response message")
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}
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answerString := responseMSG.Answer[0].String()
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if !strings.Contains(answerString, testCase.inputRecord.Name) {
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t.Fatalf("answer doesn't contain the same domain name: \nWant: %s\nGot:%s", testCase.name, answerString)
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}
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if !strings.Contains(answerString, dns.Type(testCase.inputRecord.Type).String()) {
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t.Fatalf("answer doesn't contain the correct type: \nWant: %s\nGot:%s", dns.Type(testCase.inputRecord.Type).String(), answerString)
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}
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if !strings.Contains(answerString, testCase.inputRecord.RData) {
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t.Fatalf("answer doesn't contain the same address: \nWant: %s\nGot:%s", testCase.inputRecord.RData, answerString)
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}
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})
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}
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}
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