public void Can_upgrade_maybe_parent()
{
BlockHeader parent = Build.A.BlockHeader.TestObject;
BlockHeader parentWithTotalDiff = Build.A.BlockHeader.WithTotalDifficulty(1).TestObject;
BlockHeader child = Build.A.BlockHeader.WithParent(parent).TestObject;
parent.TotalDifficulty.Should().BeNull(); // just to avoid the testing rig change without this test being updated
IBlockFinder blockFinder = Substitute.For <IBlockFinder>();
blockFinder.FindHeader(child.ParentHash, BlockTreeLookupOptions.TotalDifficultyNotNeeded).Returns(parent);
blockFinder.FindHeader(child.ParentHash, BlockTreeLookupOptions.None).Returns(parentWithTotalDiff);
blockFinder.FindParentHeader(child, BlockTreeLookupOptions.TotalDifficultyNotNeeded).Should().Be(parent);
blockFinder.FindParentHeader(child, BlockTreeLookupOptions.None).TotalDifficulty.Should().Be((UInt256?)UInt256.One);
}
private bool TryGetParentBlock(BlockHeader currentBlock, out BlockHeader parentHeader)
{
if (currentBlock.IsGenesis)
{
parentHeader = null;
return(false);
}
parentHeader = _blockFinder.FindParentHeader(currentBlock, BlockTreeLookupOptions.TotalDifficultyNotNeeded);
return(true);
}