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package core
import (
"math/big"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
)
func newChain(size int) (chain []*types.Block) {
var parentHash common.Hash
for i := 0; i < size; i++ {
head := &types.Header{ParentHash: parentHash, Number: big.NewInt(int64(i))}
block := types.NewBlock(head, nil, nil, nil)
chain = append(chain, block)
parentHash = block.Hash()
}
return chain
}
func insertChainCache(cache *BlockCache, chain []*types.Block) {
for _, block := range chain {
cache.Push(block)
}
}
func TestNewBlockCache(t *testing.T) {
chain := newChain(3)
cache := NewBlockCache(2)
insertChainCache(cache, chain)
if cache.hashes[0] != chain[1].Hash() {
t.Error("oldest block incorrect")
}
}
func TestInclusion(t *testing.T) {
chain := newChain(3)
cache := NewBlockCache(3)
insertChainCache(cache, chain)
for _, block := range chain {
if b := cache.Get(block.Hash()); b == nil {
t.Errorf("getting %x failed", block.Hash())
}
}
}
func TestDeletion(t *testing.T) {
chain := newChain(3)
cache := NewBlockCache(3)
insertChainCache(cache, chain)
cache.Delete(chain[1].Hash())
if cache.Has(chain[1].Hash()) {
t.Errorf("expected %x not to be included")
}
}
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