mirror of
https://github.com/coredns/coredns.git
synced 2025-11-03 18:53:13 -05:00
121 lines
2.2 KiB
Go
121 lines
2.2 KiB
Go
package test
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import (
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"bytes"
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"io/ioutil"
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"net/http"
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"testing"
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"time"
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"github.com/miekg/dns"
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)
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func TestReload(t *testing.T) {
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corefile := `.:0 {
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whoami
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}
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`
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coreInput := NewInput(corefile)
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c, err := CoreDNSServer(corefile)
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if err != nil {
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t.Fatalf("Could not get CoreDNS serving instance: %s", err)
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}
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udp, _ := CoreDNSServerPorts(c, 0)
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send(t, udp)
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c1, err := c.Restart(coreInput)
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if err != nil {
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t.Fatal(err)
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}
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udp, _ = CoreDNSServerPorts(c1, 0)
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send(t, udp)
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c1.Stop()
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}
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func send(t *testing.T, server string) {
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m := new(dns.Msg)
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m.SetQuestion("whoami.example.org.", dns.TypeSRV)
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r, err := dns.Exchange(m, server)
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if err != nil {
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// This seems to fail a lot on travis, quick'n dirty: redo
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r, err = dns.Exchange(m, server)
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if err != nil {
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return
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}
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}
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if r.Rcode != dns.RcodeSuccess {
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t.Fatalf("Expected successful reply, got %s", dns.RcodeToString[r.Rcode])
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}
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if len(r.Extra) != 2 {
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t.Fatalf("Expected 2 RRs in additional, got %d", len(r.Extra))
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}
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}
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func TestReloadHealth(t *testing.T) {
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corefile := `
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.:0 {
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health 127.0.0.1:52182
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whoami
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}`
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c, err := CoreDNSServer(corefile)
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if err != nil {
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t.Fatalf("Could not get service instance: %s", err)
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}
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// This fails with address 8080 already in use, it shouldn't.
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if c1, err := c.Restart(NewInput(corefile)); err != nil {
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t.Fatal(err)
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} else {
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c1.Stop()
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}
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}
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func TestReloadMetricsHealth(t *testing.T) {
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corefile := `
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.:0 {
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prometheus 127.0.0.1:53183
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health 127.0.0.1:53184
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whoami
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}`
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c, err := CoreDNSServer(corefile)
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if err != nil {
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t.Fatalf("Could not get service instance: %s", err)
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}
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c1, err := c.Restart(NewInput(corefile))
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if err != nil {
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t.Fatal(err)
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}
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defer c1.Stop()
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time.Sleep(1 * time.Second)
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// Health
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resp, err := http.Get("http://localhost:53184/health")
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if err != nil {
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t.Fatal(err)
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}
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ok, _ := ioutil.ReadAll(resp.Body)
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resp.Body.Close()
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if string(ok) != "OK" {
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t.Errorf("Failed to receive OK, got %s", ok)
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}
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// Metrics
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resp, err = http.Get("http://localhost:53183/metrics")
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if err != nil {
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t.Fatal(err)
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}
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const proc = "process_virtual_memory_bytes"
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metrics, _ := ioutil.ReadAll(resp.Body)
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if !bytes.Contains(metrics, []byte(proc)) {
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t.Errorf("Failed to see %s in metric output", proc)
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}
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}
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