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package proxy
import (
"testing"
"time"
"github.com/coredns/coredns/plugin/pkg/healthcheck"
"google.golang.org/grpc/grpclog"
)
func pool() []*healthcheck.UpstreamHost {
return []*healthcheck.UpstreamHost{
{
Name: "localhost:10053",
},
{
Name: "localhost:10054",
},
}
}
func TestStartupShutdown(t *testing.T) {
grpclog.SetLogger(discard{})
upstream := &staticUpstream{
from: ".",
HealthCheck: healthcheck.HealthCheck{
Hosts: pool(),
FailTimeout: 10 * time.Second,
Future: 60 * time.Second,
MaxFails: 1,
},
}
g := newGrpcClient(nil, upstream)
upstream.ex = g
p := &Proxy{}
p.Upstreams = &[]Upstream{upstream}
err := g.OnStartup(p)
if err != nil {
t.Errorf("Error starting grpc client exchanger: %s", err)
return
}
if len(g.clients) != len(pool()) {
t.Errorf("Expected %d grpc clients but found %d", len(pool()), len(g.clients))
}
err = g.OnShutdown(p)
if err != nil {
t.Errorf("Error stopping grpc client exchanger: %s", err)
return
}
if len(g.clients) != 0 {
t.Errorf("Shutdown didn't remove clients, found %d", len(g.clients))
}
if len(g.conns) != 0 {
t.Errorf("Shutdown didn't remove conns, found %d", len(g.conns))
}
}
// discard is a Logger that outputs nothing.
type discard struct{}
func (d discard) Fatal(args ...interface{}) {}
func (d discard) Fatalf(format string, args ...interface{}) {}
func (d discard) Fatalln(args ...interface{}) {}
func (d discard) Print(args ...interface{}) {}
func (d discard) Printf(format string, args ...interface{}) {}
func (d discard) Println(args ...interface{}) {}
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