public void GetPreviousDifficultyUpdateInformationFull_ForHeight9_ThrowException()
{
var difficultyUpdateCycle = 10;
var blockchainHeight = 9;
var sut = new DifficultyCalculator();
var blockchain = new Blockchain(_netId);
var ex = Assert.ThrowsException <DifficultyCalculationException>(
() => sut.GetPreviousDifficultyUpdateInformation(blockchainHeight, blockchain, difficultyUpdateCycle)
);
Assert.AreEqual("Unable to calculate the previous difficulty because the height is lower than the DifficultyUpdateCycle.", ex.Message);
}
public void GetPreviousDifficultyUpdateInformationFull_ForHeight62_ReturnsCorrectInformation()
{
var difficultyUpdateCycle = 10;
var blockchainHeight = 63; // = index and that starts at zero.
var sut = new DifficultyCalculator();
var blocks = new List <Block>();
// Add 64 blocks
for (int i = 10; i < 641; i = i + 10)
{
blocks.Add(new Block(new BlockHeader(_netId, _protocol, "abc", i, ""), new List <AbstractTransaction>()));
}
var blockchain = new Blockchain(blocks, _netId);
BlockDifficultyUpdate result = sut.GetPreviousDifficultyUpdateInformation(blockchainHeight, blockchain, difficultyUpdateCycle);
Assert.AreEqual(blockchain, result.Blockchain);
Assert.AreEqual(50, result.BeginHeight);
Assert.AreEqual(59, result.EndHeight);
Assert.AreEqual(90, result.TotalSecondsForBlocks); // It took 90 seconds to create 9 blocks
}