Test: integration test for appside mempool is needed

[cloudgray]

Problem

Currently unit tests for mempool interfaces like Insert, Remove, Select exist. But Integration test using CheckTx and ProcessProposal are not being conducted.

Closing Criteria

• TestTransactionOrderingWithABCIMethodCalls
  • Check tx ordering with txs which have various gas prices
  • Check tx replacement between txs which have same nonce but different gasPrice
  • Check low gas txs are replaced when mempool is full
  • Check expected txs are included in mempool in expected order by CheckTx.
  • Check expected txs are included in proposal in expected order by PrepareProposal.
• TestNonceGappedTransactionsWithABCIMethodCalls
  • Check nonce gap tx passes checkTx
  • Check nonce gap txs pass checkTx
  • Check pending count increases when nonce gap is filled
  • Check txs from different accounts with nonce gaps pass checkTx
  • Check expected txs are included in mempool in expected order by CheckTx.
  • Check expected txs are included in proposal in expected order by PrepareProposal.

[linear]

EVM-234 Test: integration test for appside mempool is needed