mirror of https://github.com/status-im/op-geth.git
105 lines
2.3 KiB
Go
105 lines
2.3 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package simulation
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import (
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"context"
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"sync"
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"testing"
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"time"
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)
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// TestPeerEvents creates simulation, adds two nodes,
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// register for peer events, connects nodes in a chain
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// and waits for the number of connection events to
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// be received.
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func TestPeerEvents(t *testing.T) {
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sim := New(noopServiceFuncMap)
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defer sim.Close()
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_, err := sim.AddNodes(2)
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if err != nil {
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t.Fatal(err)
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}
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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events := sim.PeerEvents(ctx, sim.NodeIDs())
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// two nodes -> two connection events
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expectedEventCount := 2
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var wg sync.WaitGroup
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wg.Add(expectedEventCount)
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go func() {
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for e := range events {
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if e.Error != nil {
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if e.Error == context.Canceled {
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return
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}
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t.Error(e.Error)
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continue
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}
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wg.Done()
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}
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}()
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err = sim.ConnectNodesChain(sim.NodeIDs())
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if err != nil {
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t.Fatal(err)
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}
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wg.Wait()
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}
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func TestPeerEventsTimeout(t *testing.T) {
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sim := New(noopServiceFuncMap)
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defer sim.Close()
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_, err := sim.AddNodes(2)
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if err != nil {
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t.Fatal(err)
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}
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ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
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defer cancel()
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events := sim.PeerEvents(ctx, sim.NodeIDs())
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done := make(chan struct{})
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go func() {
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for e := range events {
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if e.Error == context.Canceled {
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return
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}
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if e.Error == context.DeadlineExceeded {
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close(done)
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return
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} else {
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t.Fatal(e.Error)
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}
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}
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}()
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select {
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case <-time.After(time.Second):
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t.Error("no context deadline received")
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case <-done:
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// all good, context deadline detected
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}
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}
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