package etcd
import (
"errors"
"io"
"testing"
stdetcd "github.com/coreos/etcd/client"
"github.com/go-kit/kit/endpoint"
"github.com/go-kit/kit/log"
)
var (
node = &stdetcd.Node{
Key: "/foo",
Nodes: []*stdetcd.Node{
{Key: "/foo/1", Value: "1:1"},
{Key: "/foo/2", Value: "1:2"},
},
}
fakeResponse = &stdetcd.Response{
Node: node,
}
)
func TestSubscriber(t *testing.T) {
factory := func(string) (endpoint.Endpoint, io.Closer, error) {
return endpoint.Nop, nil, nil
}
client := &fakeClient{
responses: map[string]*stdetcd.Response{"/foo": fakeResponse},
}
s, err := NewSubscriber(client, "/foo", factory, log.NewNopLogger())
if err != nil {
t.Fatal(err)
}
defer s.Stop()
if _, err := s.Endpoints(); err != nil {
t.Fatal(err)
}
}
func TestBadFactory(t *testing.T) {
factory := func(string) (endpoint.Endpoint, io.Closer, error) {
return nil, nil, errors.New("kaboom")
}
client := &fakeClient{
responses: map[string]*stdetcd.Response{"/foo": fakeResponse},
}
s, err := NewSubscriber(client, "/foo", factory, log.NewNopLogger())
if err != nil {
t.Fatal(err)
}
defer s.Stop()
endpoints, err := s.Endpoints()
if err != nil {
t.Fatal(err)
}
if want, have := 0, len(endpoints); want != have {
t.Errorf("want %d, have %d", want, have)
}
}
type fakeClient struct {
responses map[string]*stdetcd.Response
}
func (c *fakeClient) GetEntries(prefix string) ([]string, error) {
response, ok := c.responses[prefix]
if !ok {
return nil, errors.New("key not exist")
}
entries := make([]string, len(response.Node.Nodes))
for i, node := range response.Node.Nodes {
entries[i] = node.Value
}
return entries, nil
}
func (c *fakeClient) WatchPrefix(prefix string, ch chan struct{}) {}
func (c *fakeClient) Register(Service) error {
return nil
}
func (c *fakeClient) Deregister(Service) error {
return nil
}