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 }