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kubo/exchange/bitswap/testutils.go

102 lines
2.3 KiB
Go

package bitswap
import (
"code.google.com/p/go.net/context"
ds "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore"
ds_sync "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore/sync"
"github.com/jbenet/go-ipfs/blocks"
"github.com/jbenet/go-ipfs/blocks/blockstore"
"github.com/jbenet/go-ipfs/exchange"
tn "github.com/jbenet/go-ipfs/exchange/bitswap/testnet"
"github.com/jbenet/go-ipfs/peer"
"github.com/jbenet/go-ipfs/routing/mock"
)
/*
TODO: This whole file needs somewhere better to live.
The issue is that its very difficult to move it somewhere else
without creating circular dependencies.
Additional thought required.
*/
func NewBlockGenerator() BlockGenerator {
return BlockGenerator{}
}
type BlockGenerator struct {
seq int
}
func (bg *BlockGenerator) Next() *blocks.Block {
bg.seq++
return blocks.NewBlock([]byte(string(bg.seq)))
}
func (bg *BlockGenerator) Blocks(n int) []*blocks.Block {
blocks := make([]*blocks.Block, 0)
for i := 0; i < n; i++ {
b := bg.Next()
blocks = append(blocks, b)
}
return blocks
}
func NewSessionGenerator(
net tn.Network, rs mock.RoutingServer) SessionGenerator {
return SessionGenerator{
net: net,
rs: rs,
seq: 0,
}
}
type SessionGenerator struct {
seq int
net tn.Network
rs mock.RoutingServer
}
func (g *SessionGenerator) Next() Instance {
g.seq++
return session(g.net, g.rs, []byte(string(g.seq)))
}
func (g *SessionGenerator) Instances(n int) []Instance {
instances := make([]Instance, 0)
for j := 0; j < n; j++ {
inst := g.Next()
instances = append(instances, inst)
}
return instances
}
type Instance struct {
Peer peer.Peer
Exchange exchange.Interface
Blockstore blockstore.Blockstore
}
// session creates a test bitswap session.
//
// NB: It's easy make mistakes by providing the same peer ID to two different
// sessions. To safeguard, use the SessionGenerator to generate sessions. It's
// just a much better idea.
func session(net tn.Network, rs mock.RoutingServer, id peer.ID) Instance {
p := peer.WithID(id)
adapter := net.Adapter(p)
htc := rs.Client(p)
bstore := blockstore.NewBlockstore(ds_sync.MutexWrap(ds.NewMapDatastore()))
const alwaysSendToPeer = true
ctx := context.TODO()
bs := New(ctx, p, adapter, htc, bstore, alwaysSendToPeer)
return Instance{
Peer: p,
Exchange: bs,
Blockstore: bstore,
}
}