traefik/provider/kv/kv_test.go

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package kv
import (
"testing"
"time"
"github.com/containous/traefik/types"
"github.com/docker/libkv/store"
)
func TestKvWatchTree(t *testing.T) {
returnedChans := make(chan chan []*store.KVPair)
provider := Provider{
kvClient: &Mock{
WatchTreeMethod: func() <-chan []*store.KVPair {
c := make(chan []*store.KVPair, 10)
returnedChans <- c
return c
},
},
}
configChan := make(chan types.ConfigMessage)
go func() {
provider.watchKv(configChan, "prefix", make(chan bool, 1))
}()
select {
case c1 := <-returnedChans:
c1 <- []*store.KVPair{}
<-configChan
close(c1) // WatchTree chans can close due to error
case <-time.After(1 * time.Second):
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t.Fatalf("Failed to create a new WatchTree chan")
}
select {
case c2 := <-returnedChans:
c2 <- []*store.KVPair{}
<-configChan
case <-time.After(1 * time.Second):
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t.Fatalf("Failed to create a new WatchTree chan")
}
select {
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case <-configChan:
t.Fatalf("configChan should be empty")
default:
}
}