public void TestHeight()
{
var fakeHeaders = new FakeHeaders();
var header0 = fakeHeaders.GenesisChained();
var header1 = fakeHeaders.NextChained();
var chainBuilder = new ChainBuilder();
// verify height with 0 blocks
Assert.AreEqual(-1, chainBuilder.Height);
// verify height with 1 block
chainBuilder.AddBlock(header0);
Assert.AreEqual(0, chainBuilder.Height);
// verify height with 2 blocks
chainBuilder.AddBlock(header1);
Assert.AreEqual(1, chainBuilder.Height);
}