Module testing

Utilities for offchain calls testing.

Namely all ExecutionExtensions that allow mocking the extra APIs.

Structs

• OffchainState
  Internal state of the externalities.
• PendingRequest
  Pending request.
• PoolState
  The internal state of the fake transaction pool.
• TestOffchainExt
  Implementation of offchain externalities used for tests.
• TestPersistentOffchainDB
  Sharable “persistent” offchain storage for test.
• TestTransactionPoolExt
  Implementation of transaction pool used for test.