BlockCounter creates a BlockCounter that runs completely locally.

Connect initializes a local stub implementation of the chain interfaces for testing.

ConnectWithKey initializes a local stub implementation of the chain interfaces for testing.

NewStakeMonitor creates a new instance of `StakeMonitor` test stub.

StakeMonitor implements `chain.StakeMonitor` interface and works as a local stub for testing.

Chain is an extention of chain.Handle interface which exposes additional functions useful for testing.