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