plugeth/les/vflux/client/queueiterator_test.go

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// Copyright 2020 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package client
import (
"testing"
"time"
"github.com/ethereum/go-ethereum/common/mclock"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/p2p/enr"
"github.com/ethereum/go-ethereum/p2p/nodestate"
)
func testNode(i int) *enode.Node {
return enode.SignNull(new(enr.Record), testNodeID(i))
}
func TestQueueIteratorFIFO(t *testing.T) {
testQueueIterator(t, true)
}
func TestQueueIteratorLIFO(t *testing.T) {
testQueueIterator(t, false)
}
func testQueueIterator(t *testing.T, fifo bool) {
ns := nodestate.NewNodeStateMachine(nil, nil, &mclock.Simulated{}, testSetup)
qi := NewQueueIterator(ns, sfTest2, sfTest3.Or(sfTest4), fifo, nil)
ns.Start()
for i := 1; i <= iterTestNodeCount; i++ {
ns.SetState(testNode(i), sfTest1, nodestate.Flags{}, 0)
}
next := func() int {
ch := make(chan struct{})
go func() {
qi.Next()
close(ch)
}()
select {
case <-ch:
case <-time.After(time.Second * 5):
t.Fatalf("Iterator.Next() timeout")
}
node := qi.Node()
ns.SetState(node, sfTest4, nodestate.Flags{}, 0)
return testNodeIndex(node.ID())
}
exp := func(i int) {
n := next()
if n != i {
t.Errorf("Wrong item returned by iterator (expected %d, got %d)", i, n)
}
}
explist := func(list []int) {
for i := range list {
if fifo {
exp(list[i])
} else {
exp(list[len(list)-1-i])
}
}
}
ns.SetState(testNode(1), sfTest2, nodestate.Flags{}, 0)
ns.SetState(testNode(2), sfTest2, nodestate.Flags{}, 0)
ns.SetState(testNode(3), sfTest2, nodestate.Flags{}, 0)
explist([]int{1, 2, 3})
ns.SetState(testNode(4), sfTest2, nodestate.Flags{}, 0)
ns.SetState(testNode(5), sfTest2, nodestate.Flags{}, 0)
ns.SetState(testNode(6), sfTest2, nodestate.Flags{}, 0)
ns.SetState(testNode(5), sfTest3, nodestate.Flags{}, 0)
explist([]int{4, 6})
ns.SetState(testNode(1), nodestate.Flags{}, sfTest4, 0)
ns.SetState(testNode(2), nodestate.Flags{}, sfTest4, 0)
ns.SetState(testNode(3), nodestate.Flags{}, sfTest4, 0)
ns.SetState(testNode(2), sfTest3, nodestate.Flags{}, 0)
ns.SetState(testNode(2), nodestate.Flags{}, sfTest3, 0)
explist([]int{1, 3, 2})
ns.Stop()
}