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package dex
import (
"math/rand"
"testing"
"time"
"github.com/dexon-foundation/dexon/common"
"github.com/dexon-foundation/dexon/p2p/enode"
)
func TestNodeTable(t *testing.T) {
table := newNodeTable()
ch := make(chan newMetasEvent)
table.SubscribeNewMetasEvent(ch)
metas1 := []*NodeMeta{
&NodeMeta{ID: randomID()},
&NodeMeta{ID: randomID()},
}
metas2 := []*NodeMeta{
&NodeMeta{ID: randomID()},
&NodeMeta{ID: randomID()},
}
go table.Add(metas1)
select {
case newMetas := <-ch:
m := map[common.Hash]struct{}{}
for _, meta := range newMetas.Metas {
m[meta.Hash()] = struct{}{}
}
if len(m) != len(metas1) {
t.Errorf("len mismatch: got %d, want: %d",
len(m), len(metas1))
}
for _, meta := range metas1 {
if _, ok := m[meta.Hash()]; !ok {
t.Errorf("expected meta (%s) not exists", meta.Hash())
}
}
case <-time.After(1 * time.Second):
t.Error("did not receive new metas event within one second")
}
go table.Add(metas2)
select {
case newMetas := <-ch:
m := map[common.Hash]struct{}{}
for _, meta := range newMetas.Metas {
m[meta.Hash()] = struct{}{}
}
if len(m) != len(metas1) {
t.Errorf("len mismatch: got %d, want: %d",
len(m), len(metas2))
}
for _, meta := range metas2 {
if _, ok := m[meta.Hash()]; !ok {
t.Errorf("expected meta (%s) not exists", meta.Hash())
}
}
case <-time.After(1 * time.Second):
t.Error("did not receive new metas event within one second")
}
var metas []*NodeMeta
metas = append(metas, metas1...)
metas = append(metas, metas2...)
allMetas := table.Metas()
if len(allMetas) != len(metas) {
t.Errorf("all metas num mismatch: got %d, want %d",
len(metas), len(allMetas))
}
for _, m := range metas {
if m.Hash() != table.Get(m.ID).Hash() {
t.Errorf("meta (%s) mismatch", m.ID.String())
}
}
}
func randomID() (id enode.ID) {
for i := range id {
id[i] = byte(rand.Intn(255))
}
return id
}
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