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103 lines
3.1 KiB
103 lines
3.1 KiB
// Copyright 2020 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 client
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import (
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"reflect"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common/mclock"
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"github.com/ethereum/go-ethereum/p2p/nodestate"
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)
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var (
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testSetup = &nodestate.Setup{}
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sfTest1 = testSetup.NewFlag("test1")
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sfTest2 = testSetup.NewFlag("test2")
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sfTest3 = testSetup.NewFlag("test3")
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sfTest4 = testSetup.NewFlag("test4")
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sfiTestWeight = testSetup.NewField("nodeWeight", reflect.TypeOf(uint64(0)))
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)
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const iterTestNodeCount = 6
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func TestWrsIterator(t *testing.T) {
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ns := nodestate.NewNodeStateMachine(nil, nil, &mclock.Simulated{}, testSetup)
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w := NewWrsIterator(ns, sfTest2, sfTest3.Or(sfTest4), sfiTestWeight)
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ns.Start()
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for i := 1; i <= iterTestNodeCount; i++ {
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ns.SetState(testNode(i), sfTest1, nodestate.Flags{}, 0)
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ns.SetField(testNode(i), sfiTestWeight, uint64(1))
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}
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next := func() int {
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ch := make(chan struct{})
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go func() {
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w.Next()
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close(ch)
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}()
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select {
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case <-ch:
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case <-time.After(time.Second * 5):
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t.Fatalf("Iterator.Next() timeout")
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}
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node := w.Node()
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ns.SetState(node, sfTest4, nodestate.Flags{}, 0)
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return testNodeIndex(node.ID())
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}
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set := make(map[int]bool)
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expset := func() {
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for len(set) > 0 {
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n := next()
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if !set[n] {
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t.Errorf("Item returned by iterator not in the expected set (got %d)", n)
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}
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delete(set, n)
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}
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}
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ns.SetState(testNode(1), sfTest2, nodestate.Flags{}, 0)
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ns.SetState(testNode(2), sfTest2, nodestate.Flags{}, 0)
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ns.SetState(testNode(3), sfTest2, nodestate.Flags{}, 0)
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set[1] = true
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set[2] = true
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set[3] = true
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expset()
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ns.SetState(testNode(4), sfTest2, nodestate.Flags{}, 0)
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ns.SetState(testNode(5), sfTest2.Or(sfTest3), nodestate.Flags{}, 0)
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ns.SetState(testNode(6), sfTest2, nodestate.Flags{}, 0)
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set[4] = true
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set[6] = true
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expset()
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ns.SetField(testNode(2), sfiTestWeight, uint64(0))
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ns.SetState(testNode(1), nodestate.Flags{}, sfTest4, 0)
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ns.SetState(testNode(2), nodestate.Flags{}, sfTest4, 0)
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ns.SetState(testNode(3), nodestate.Flags{}, sfTest4, 0)
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set[1] = true
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set[3] = true
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expset()
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ns.SetField(testNode(2), sfiTestWeight, uint64(1))
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ns.SetState(testNode(2), nodestate.Flags{}, sfTest2, 0)
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ns.SetState(testNode(1), nodestate.Flags{}, sfTest4, 0)
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ns.SetState(testNode(2), sfTest2, sfTest4, 0)
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ns.SetState(testNode(3), nodestate.Flags{}, sfTest4, 0)
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set[1] = true
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set[2] = true
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set[3] = true
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expset()
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ns.Stop()
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}
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