github.com/linapex/ethereum-go-chinese@v0.0.0-20190316121929-f8b7a73c3fa1/swarm/network/simulation/kademlia_test.go (about)

     1  
     2  //<developer>
     3  //    <name>linapex 曹一峰</name>
     4  //    <email>linapex@163.com</email>
     5  //    <wx>superexc</wx>
     6  //    <qqgroup>128148617</qqgroup>
     7  //    <url>https://jsq.ink</url>
     8  //    <role>pku engineer</role>
     9  //    <date>2019-03-16 19:16:43</date>
    10  //</624450114521403392>
    11  
    12  
    13  package simulation
    14  
    15  import (
    16  	"context"
    17  	"sync"
    18  	"testing"
    19  	"time"
    20  
    21  	"github.com/ethereum/go-ethereum/node"
    22  	"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
    23  	"github.com/ethereum/go-ethereum/swarm/network"
    24  )
    25  
    26  func TestWaitTillHealthy(t *testing.T) {
    27  	t.Skip("WaitTillHealthy depends on discovery, which relies on a reliable SuggestPeer, which is not reliable")
    28  
    29  	sim := New(map[string]ServiceFunc{
    30  		"bzz": func(ctx *adapters.ServiceContext, b *sync.Map) (node.Service, func(), error) {
    31  			addr := network.NewAddr(ctx.Config.Node())
    32  			hp := network.NewHiveParams()
    33  			config := &network.BzzConfig{
    34  				OverlayAddr:  addr.Over(),
    35  				UnderlayAddr: addr.Under(),
    36  				HiveParams:   hp,
    37  			}
    38  			kad := network.NewKademlia(addr.Over(), network.NewKadParams())
    39  //将kademlia存储在bucketkeykademlia下的节点桶中
    40  //这样就可以通过waittillhealthy方法找到它。
    41  			b.Store(BucketKeyKademlia, kad)
    42  			return network.NewBzz(config, kad, nil, nil, nil), nil, nil
    43  		},
    44  	})
    45  	defer sim.Close()
    46  
    47  	_, err := sim.AddNodesAndConnectRing(10)
    48  	if err != nil {
    49  		t.Fatal(err)
    50  	}
    51  
    52  	ctx, cancel := context.WithTimeout(context.Background(), 120*time.Second)
    53  	defer cancel()
    54  	ill, err := sim.WaitTillHealthy(ctx)
    55  	if err != nil {
    56  		for id, kad := range ill {
    57  			t.Log("Node", id)
    58  			t.Log(kad.String())
    59  		}
    60  		if err != nil {
    61  			t.Fatal(err)
    62  		}
    63  	}
    64  }
    65