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package downloader
import (
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"gopkg.in/fatih/set.v0"
)
func createHashSet(hashes []common.Hash) *set.Set {
hset := set.New()
for _, hash := range hashes {
hset.Add(hash)
}
return hset
}
func createBlocksFromHashSet(hashes *set.Set) []*types.Block {
blocks := make([]*types.Block, hashes.Size())
var i int
hashes.Each(func(v interface{}) bool {
blocks[i] = createBlock(i, common.Hash{}, v.(common.Hash))
i++
return true
})
return blocks
}
func TestChunking(t *testing.T) {
queue := newQueue()
peer1 := newPeer("peer1", common.Hash{}, nil, nil)
peer2 := newPeer("peer2", common.Hash{}, nil, nil)
// 99 + 1 (1 == known genesis hash)
hashes := createHashes(0, 99)
queue.Insert(hashes)
chunk1 := queue.Reserve(peer1, 99)
if chunk1 == nil {
t.Errorf("chunk1 is nil")
t.FailNow()
}
chunk2 := queue.Reserve(peer2, 99)
if chunk2 == nil {
t.Errorf("chunk2 is nil")
t.FailNow()
}
if len(chunk1.Hashes) != 99 {
t.Error("expected chunk1 hashes to be 99, got", len(chunk1.Hashes))
}
if len(chunk2.Hashes) != 1 {
t.Error("expected chunk1 hashes to be 1, got", len(chunk2.Hashes))
}
}
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