public void TestLease()
{
CheckBalance();
long amount = 1 * Blockchain.V_UNITY;
LeaseTransaction tx = TransactionFactory.BuildLeaseTx(recipient, amount);
ProvenTransaction result = account.SendTransaction(chain, tx);
Assert.IsNotNull(result.Id);
Assert.IsTrue(WaitPackageOnChain(result.Id));
leaseId = result.Id;
}