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roundrobin_test.go
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roundrobin_test.go
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package pooly
import (
"testing"
"time"
)
func TestServiceRoundRobin(t *testing.T) {
e1 := newEchoServer(t, echo1)
defer e1.close()
e2 := newEchoServer(t, echo2)
defer e2.close()
e3 := newEchoServer(t, echo3)
defer e3.close()
s := NewService("echo", nil)
defer s.Close()
s.Add(echo1)
s.Add(echo2)
s.Add(echo3)
c, err := s.GetConn()
if err != nil {
t.Fatal(err)
}
a := c.Address()
if err := c.Release(nil, HostUp); err != nil {
t.Fatal(err)
}
if a != echo1 {
t.Fatal(echo1, "expected")
}
c, err = s.GetConn()
if err != nil {
t.Fatal(err)
}
a = c.Address()
if err := c.Release(nil, HostUp); err != nil {
t.Fatal(err)
}
if a != echo2 {
t.Fatal(echo2, "expected")
}
t.Log("status:", s.Status())
s.Remove(echo3)
time.Sleep(1 * time.Millisecond) // wait for propagation
c, err = s.GetConn()
if err != nil {
t.Fatal(err)
}
a = c.Address()
if err := c.Release(nil, HostUp); err != nil {
t.Fatal(err)
}
if a != echo1 {
t.Fatal(echo1, "expected")
}
t.Log("status:", s.Status())
s.Add(echo3)
time.Sleep(1 * time.Millisecond) // wait for propagation
c, err = s.GetConn()
if err != nil {
t.Fatal(err)
}
a = c.Address()
if err := c.Release(nil, HostUp); err != nil {
t.Fatal(err)
}
if a != echo2 {
t.Fatal(echo2, "expected")
}
c, err = s.GetConn()
if err != nil {
t.Fatal(err)
}
a = c.Address()
if err := c.Release(nil, HostUp); err != nil {
t.Fatal(err)
}
if a != echo3 {
t.Fatal(echo3, "expected")
}
c, err = s.GetConn()
if err != nil {
t.Fatal(err)
}
a = c.Address()
if err := c.Release(nil, HostUp); err != nil {
t.Fatal(err)
}
if a != echo1 {
t.Fatal(echo1, "expected")
}
t.Log("status:", s.Status())
}