coredns/plugin/ready/ready_test.go
Fish-pro 039a4d87e2
Use http constants instead of string (#5908)
Signed-off-by: Fish-pro <zechun.chen@daocloud.io>
2023-02-09 12:29:49 +01:00

69 lines
1.9 KiB
Go

package ready
import (
"context"
"fmt"
"net/http"
"testing"
"github.com/coredns/coredns/plugin/erratic"
clog "github.com/coredns/coredns/plugin/pkg/log"
"github.com/coredns/coredns/plugin/test"
"github.com/miekg/dns"
)
func init() { clog.Discard() }
func TestReady(t *testing.T) {
rd := &ready{Addr: ":0"}
e := &erratic.Erratic{}
plugins.Append(e, "erratic")
if err := rd.onStartup(); err != nil {
t.Fatalf("Unable to startup the readiness server: %v", err)
}
defer rd.onFinalShutdown()
address := fmt.Sprintf("http://%s/ready", rd.ln.Addr().String())
response, err := http.Get(address)
if err != nil {
t.Fatalf("Unable to query %s: %v", address, err)
}
if response.StatusCode != http.StatusServiceUnavailable {
t.Errorf("Invalid status code: expecting %d, got %d", 503, response.StatusCode)
}
response.Body.Close()
// make it ready by giving erratic 3 queries.
m := new(dns.Msg)
m.SetQuestion("example.org.", dns.TypeA)
e.ServeDNS(context.TODO(), &test.ResponseWriter{}, m)
e.ServeDNS(context.TODO(), &test.ResponseWriter{}, m)
e.ServeDNS(context.TODO(), &test.ResponseWriter{}, m)
response, err = http.Get(address)
if err != nil {
t.Fatalf("Unable to query %s: %v", address, err)
}
if response.StatusCode != http.StatusOK {
t.Errorf("Invalid status code: expecting %d, got %d", 200, response.StatusCode)
}
response.Body.Close()
// make erratic not-ready by giving it more queries, this should not change the process readiness
e.ServeDNS(context.TODO(), &test.ResponseWriter{}, m)
e.ServeDNS(context.TODO(), &test.ResponseWriter{}, m)
e.ServeDNS(context.TODO(), &test.ResponseWriter{}, m)
response, err = http.Get(address)
if err != nil {
t.Fatalf("Unable to query %s: %v", address, err)
}
if response.StatusCode != http.StatusOK {
t.Errorf("Invalid status code: expecting %d, got %d", 200, response.StatusCode)
}
response.Body.Close()
}