micro/registry/mdns_test.go

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package registry
import (
"testing"
"time"
)
func TestMDNS(t *testing.T) {
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testData := []*Service{
{
Name: "test1",
Version: "1.0.1",
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Nodes: []*Node{
{
Id: "test1-1",
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Address: "10.0.0.1:10001",
Metadata: map[string]string{
"foo": "bar",
},
},
},
},
{
Name: "test2",
Version: "1.0.2",
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Nodes: []*Node{
{
Id: "test2-1",
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Address: "10.0.0.2:10002",
Metadata: map[string]string{
"foo2": "bar2",
},
},
},
},
{
Name: "test3",
Version: "1.0.3",
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Nodes: []*Node{
{
Id: "test3-1",
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Address: "10.0.0.3:10003",
Metadata: map[string]string{
"foo3": "bar3",
},
},
},
},
}
// new registry
r := NewRegistry()
for _, service := range testData {
// register service
if err := r.Register(service); err != nil {
t.Fatal(err)
}
// get registered service
s, err := r.GetService(service.Name)
if err != nil {
t.Fatal(err)
}
if len(s) != 1 {
t.Fatalf("Expected one result for %s got %d", service.Name, len(s))
}
if s[0].Name != service.Name {
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t.Fatalf("Expected name %s got %s", service.Name, s[0].Name)
}
if s[0].Version != service.Version {
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t.Fatalf("Expected version %s got %s", service.Version, s[0].Version)
}
if len(s[0].Nodes) != 1 {
t.Fatalf("Expected 1 node, got %d", len(s[0].Nodes))
}
node := s[0].Nodes[0]
if node.Id != service.Nodes[0].Id {
t.Fatalf("Expected node id %s got %s", service.Nodes[0].Id, node.Id)
}
if node.Address != service.Nodes[0].Address {
t.Fatalf("Expected node address %s got %s", service.Nodes[0].Address, node.Address)
}
}
services, err := r.ListServices()
if err != nil {
t.Fatal(err)
}
for _, service := range testData {
var seen bool
for _, s := range services {
if s.Name == service.Name {
seen = true
break
}
}
if !seen {
t.Fatalf("Expected service %s got nothing", service.Name)
}
// deregister
if err := r.Deregister(service); err != nil {
t.Fatal(err)
}
time.Sleep(time.Millisecond * 5)
// check its gone
s, _ := r.GetService(service.Name)
if len(s) > 0 {
t.Fatalf("Expected nothing got %+v", s[0])
}
}
}