gitee.com/liu-zhao234568/cntest@v1.0.0/les/vflux/client/wrsiterator_test.go (about)

     1  // Copyright 2020 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package client
    18  
    19  import (
    20  	"reflect"
    21  	"testing"
    22  	"time"
    23  
    24  	"gitee.com/liu-zhao234568/cntest/common/mclock"
    25  	"gitee.com/liu-zhao234568/cntest/p2p/nodestate"
    26  )
    27  
    28  var (
    29  	testSetup     = &nodestate.Setup{}
    30  	sfTest1       = testSetup.NewFlag("test1")
    31  	sfTest2       = testSetup.NewFlag("test2")
    32  	sfTest3       = testSetup.NewFlag("test3")
    33  	sfTest4       = testSetup.NewFlag("test4")
    34  	sfiTestWeight = testSetup.NewField("nodeWeight", reflect.TypeOf(uint64(0)))
    35  )
    36  
    37  const iterTestNodeCount = 6
    38  
    39  func TestWrsIterator(t *testing.T) {
    40  	ns := nodestate.NewNodeStateMachine(nil, nil, &mclock.Simulated{}, testSetup)
    41  	w := NewWrsIterator(ns, sfTest2, sfTest3.Or(sfTest4), sfiTestWeight)
    42  	ns.Start()
    43  	for i := 1; i <= iterTestNodeCount; i++ {
    44  		ns.SetState(testNode(i), sfTest1, nodestate.Flags{}, 0)
    45  		ns.SetField(testNode(i), sfiTestWeight, uint64(1))
    46  	}
    47  	next := func() int {
    48  		ch := make(chan struct{})
    49  		go func() {
    50  			w.Next()
    51  			close(ch)
    52  		}()
    53  		select {
    54  		case <-ch:
    55  		case <-time.After(time.Second * 5):
    56  			t.Fatalf("Iterator.Next() timeout")
    57  		}
    58  		node := w.Node()
    59  		ns.SetState(node, sfTest4, nodestate.Flags{}, 0)
    60  		return testNodeIndex(node.ID())
    61  	}
    62  	set := make(map[int]bool)
    63  	expset := func() {
    64  		for len(set) > 0 {
    65  			n := next()
    66  			if !set[n] {
    67  				t.Errorf("Item returned by iterator not in the expected set (got %d)", n)
    68  			}
    69  			delete(set, n)
    70  		}
    71  	}
    72  
    73  	ns.SetState(testNode(1), sfTest2, nodestate.Flags{}, 0)
    74  	ns.SetState(testNode(2), sfTest2, nodestate.Flags{}, 0)
    75  	ns.SetState(testNode(3), sfTest2, nodestate.Flags{}, 0)
    76  	set[1] = true
    77  	set[2] = true
    78  	set[3] = true
    79  	expset()
    80  	ns.SetState(testNode(4), sfTest2, nodestate.Flags{}, 0)
    81  	ns.SetState(testNode(5), sfTest2.Or(sfTest3), nodestate.Flags{}, 0)
    82  	ns.SetState(testNode(6), sfTest2, nodestate.Flags{}, 0)
    83  	set[4] = true
    84  	set[6] = true
    85  	expset()
    86  	ns.SetField(testNode(2), sfiTestWeight, uint64(0))
    87  	ns.SetState(testNode(1), nodestate.Flags{}, sfTest4, 0)
    88  	ns.SetState(testNode(2), nodestate.Flags{}, sfTest4, 0)
    89  	ns.SetState(testNode(3), nodestate.Flags{}, sfTest4, 0)
    90  	set[1] = true
    91  	set[3] = true
    92  	expset()
    93  	ns.SetField(testNode(2), sfiTestWeight, uint64(1))
    94  	ns.SetState(testNode(2), nodestate.Flags{}, sfTest2, 0)
    95  	ns.SetState(testNode(1), nodestate.Flags{}, sfTest4, 0)
    96  	ns.SetState(testNode(2), sfTest2, sfTest4, 0)
    97  	ns.SetState(testNode(3), nodestate.Flags{}, sfTest4, 0)
    98  	set[1] = true
    99  	set[2] = true
   100  	set[3] = true
   101  	expset()
   102  	ns.Stop()
   103  }