public void BlockChainLastBlockTest()
{
var blockChain = new MockBlockChain();
var block1 = new MockBlock("block1");
var block2 = new MockBlock("block2");
var block3 = new MockBlock("block3");
// no blocks
Assert.IsNull(blockChain.GetLastBlock());
blockChain.AddBlock(block1);
var lastBlock = blockChain.GetLastBlock();
Assert.AreEqual(block1, lastBlock);
blockChain.AddBlock(block2);
lastBlock = blockChain.GetLastBlock();
Assert.AreNotEqual(block1, lastBlock);
Assert.AreEqual(block2, lastBlock);
blockChain.AddBlock(block3);
lastBlock = blockChain.GetLastBlock();
Assert.AreNotEqual(block1, lastBlock);
Assert.AreNotEqual(block2, lastBlock);
Assert.AreEqual(block3, lastBlock);
}
public void BlockChainHashLinkingTest()
{
var blockChain = new MockBlockChain();
var block1 = new MockBlock("block1");
var block2 = new MockBlock("block2");
var block3 = new MockBlock("block3");
// no blocks
Assert.AreEqual(NO_PREVIOUS_BLOCK_HASH, blockChain.LastBlockHash);
Assert.IsNull(block1.PreviousBlockHash);
blockChain.AddBlock(block1);
Assert.AreEqual(NO_PREVIOUS_BLOCK_HASH, block1.PreviousBlockHash);
Assert.AreEqual(block1.Hash, blockChain.LastBlockHash);
Assert.IsNull(block2.PreviousBlockHash);
blockChain.AddBlock(block2);
Assert.AreEqual(block1.Hash, block2.PreviousBlockHash);
Assert.AreEqual(block2.Hash, blockChain.LastBlockHash);
Assert.IsNull(block3.PreviousBlockHash);
blockChain.AddBlock(block3);
Assert.AreEqual(block2.Hash, block3.PreviousBlockHash);
Assert.AreEqual(block3.Hash, blockChain.LastBlockHash);
}
