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package les
import (
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/light"
"golang.org/x/net/context"
)
var testBankSecureTrieKey = secAddr(testBankAddress)
func secAddr(addr common.Address) []byte {
return crypto.Keccak256(addr[:])
}
type accessTestFn func(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest
func TestBlockAccessLes1(t *testing.T) { testAccess(t, 1, tfBlockAccess) }
func tfBlockAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
return &light.BlockRequest{Hash: bhash, Number: number}
}
func TestReceiptsAccessLes1(t *testing.T) { testAccess(t, 1, tfReceiptsAccess) }
func tfReceiptsAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
return &light.ReceiptsRequest{Hash: bhash, Number: number}
}
func TestTrieEntryAccessLes1(t *testing.T) { testAccess(t, 1, tfTrieEntryAccess) }
func tfTrieEntryAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
return &light.TrieRequest{Id: light.StateTrieID(core.GetHeader(db, bhash, core.GetBlockNumber(db, bhash))), Key: testBankSecureTrieKey}
}
func TestCodeAccessLes1(t *testing.T) { testAccess(t, 1, tfCodeAccess) }
func tfCodeAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
header := core.GetHeader(db, bhash, core.GetBlockNumber(db, bhash))
if header.GetNumberU64() < testContractDeployed {
return nil
}
sti := light.StateTrieID(header)
ci := light.StorageTrieID(sti, testContractAddr, common.Hash{})
return &light.CodeRequest{Id: ci, Hash: crypto.Keccak256Hash(testContractCodeDeployed)}
}
func testAccess(t *testing.T, protocol int, fn accessTestFn) {
// Assemble the test environment
pm, db, _ := newTestProtocolManagerMust(t, false, 4, testChainGen)
lpm, ldb, odr := newTestProtocolManagerMust(t, true, 0, nil)
_, err1, lpeer, err2 := newTestPeerPair("peer", protocol, pm, lpm)
select {
case <-time.After(time.Millisecond * 100):
case err := <-err1:
t.Fatalf("peer 1 handshake error: %v", err)
case err := <-err2:
t.Fatalf("peer 1 handshake error: %v", err)
}
lpm.synchronise(lpeer)
test := func(expFail uint64) {
for i := uint64(0); i <= pm.blockchain.CurrentHeader().GetNumberU64(); i++ {
bhash := core.GetCanonicalHash(db, i)
if req := fn(ldb, bhash, i); req != nil {
ctx, _ := context.WithTimeout(context.Background(), 200*time.Millisecond)
err := odr.Retrieve(ctx, req)
got := err == nil
exp := i < expFail
if exp && !got {
t.Errorf("object retrieval failed")
}
if !exp && got {
t.Errorf("unexpected object retrieval success")
}
}
}
}
// temporarily remove peer to test odr fails
odr.UnregisterPeer(lpeer)
// expect retrievals to fail (except genesis block) without a les peer
test(0)
odr.RegisterPeer(lpeer)
// expect all retrievals to pass
test(5)
odr.UnregisterPeer(lpeer)
}
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