public async Task Test_Validate_Before_Attach()
{
Block block = null;
bool validateResult;
validateResult = await _blockValidationProvider.ValidateBeforeAttachAsync(block);
validateResult.ShouldBeFalse();
block = new Block();
validateResult = await _blockValidationProvider.ValidateBeforeAttachAsync(block);
validateResult.ShouldBeFalse();
block.Header = new BlockHeader();
validateResult = await _blockValidationProvider.ValidateBeforeAttachAsync(block);
validateResult.ShouldBeFalse();
block.Body = new BlockBody();
validateResult = await _blockValidationProvider.ValidateBeforeAttachAsync(block);
validateResult.ShouldBeFalse();
block.Body.TransactionIds.Add(Hash.Empty);
block.Header.ChainId = 1234;
validateResult = await _blockValidationProvider.ValidateBeforeAttachAsync(block);
validateResult.ShouldBeFalse();
block.Header.ChainId = 0;
validateResult = await _blockValidationProvider.ValidateBeforeAttachAsync(block);
validateResult.ShouldBeFalse();
block.Header.Height = AElfConstants.GenesisBlockHeight;
validateResult = await _blockValidationProvider.ValidateBeforeAttachAsync(block);
validateResult.ShouldBeFalse();
block.Header = _kernelTestHelper.GenerateBlock(9, HashHelper.ComputeFrom("PreviousBlockHash")).Header;
block.Header.Signature =
ByteString.CopyFrom(CryptoHelper.SignWithPrivateKey(_kernelTestHelper.KeyPair.PrivateKey,
block.GetHash().ToByteArray()));
validateResult = await _blockValidationProvider.ValidateBeforeAttachAsync(block);
validateResult.ShouldBeFalse();
block.Header.MerkleTreeRootOfTransactions = block.Body.CalculateMerkleTreeRoot();
block.Header.Time = TimestampHelper.GetUtcNow() + TimestampHelper.DurationFromMinutes(30);
validateResult = await _blockValidationProvider.ValidateBeforeAttachAsync(block);
validateResult.ShouldBeFalse();
block.Header.Time = TimestampHelper.GetUtcNow();
validateResult = await _blockValidationProvider.ValidateBeforeAttachAsync(block);
validateResult.ShouldBeTrue();
}
private bool IsOldBlock(BlockHeader header)
{
var limit = TimestampHelper.GetUtcNow()
- TimestampHelper.DurationFromMinutes(NetworkConstants.DefaultMaxBlockAgeToBroadcastInMinutes);
if (header.Time < limit)
{
return(true);
}
return(false);
}
public async Task BroadcastAnnounce_Test()
{
var blockHeader = _kernelTestHelper.GenerateBlock(10, Hash.FromString("test")).Header;
//old block
blockHeader.Time = TimestampHelper.GetUtcNow() - TimestampHelper.DurationFromMinutes(20);
await _networkService.BroadcastAnnounceAsync(blockHeader, false);
//known block
blockHeader.Time = TimestampHelper.GetUtcNow();
await _networkService.BroadcastAnnounceAsync(blockHeader, false);
//broadcast again
blockHeader = _kernelTestHelper.GenerateBlock(11, Hash.FromString("new")).Header;
await _networkService.BroadcastAnnounceAsync(blockHeader, false);
}
public async Task BroadcastAnnouncement_OldBlock_Test()
{
var blockHeader = OsCoreTestHelper.CreateFakeBlockHeader(chainId: 1, height: 2);
blockHeader.Time = TimestampHelper.GetUtcNow() -
TimestampHelper.DurationFromMinutes(
NetworkConstants.DefaultMaxBlockAgeToBroadcastInMinutes + 1);
await _networkService.BroadcastAnnounceAsync(blockHeader);
foreach (var peer in _testContext.MockedPeers)
{
peer.Verify(p => p.TryAddKnownBlock(blockHeader.GetHash()), Times.Never);
}
foreach (var peer in _testContext.MockedPeers)
{
peer.Verify(p => p.EnqueueAnnouncement(It.Is <BlockAnnouncement>(ba => ba.BlockHash == blockHeader.GetHash()),
It.IsAny <Action <NetworkException> >()), Times.Never);
}
}
public void DurationFromMinutes_Test()
{
var result = TimestampHelper.DurationFromMinutes(1);
result.Seconds.ShouldBe(60);
}