ime(evm): improve code coverage for EVM keeper (#1396)

* [issue-1018] add new tests on evm module keeper

* [issue-1018] add more new tests on evm module keeper

* [issue-1018] add more new tests on evm module keeper (state_transition, statedb, utils)

* [issue-1018] add more new tests on evm module keeper (msg_server)

* [issue-1018] fix code style

* [issue-1018] add changes in CHANGELOG

* [issue-1018] add missing error check in grpc_query_test

* [issue-1018] fix failing tests

* [issue-1018] add changes based on review comments (grpc_query_test & abci_test)

* [issue-1018] add GenerateAddress in TestEthCall (grpc_query_test)

* [issue-1018] remove unnecessary SetupTest calls

* [issue-1018] refactor SetupTest calls (grpc_query_test & statedb_test)

CHANGELOG.md

@@ -64,6 +64,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (cli) [#1360](https://github.com/evmos/ethermint/pull/1360) Introduce a new `grpc-only` flag, such that when enabled, will start the node in a query-only mode. Note, gRPC MUST be enabled with this flag.
 * (rpc) [#1378](https://github.com/evmos/ethermint/pull/1378) Add support for EVM RPC metrics
 * (ante) [#1390](https://github.com/evmos/ethermint/pull/1390) Added multisig tx support.
+* (test) [#1396](https://github.com/evmos/ethermint/pull/1396) Increase test coverage for the EVM module `keeper`
 
 ### Bug Fixes
 

x/evm/keeper/abci_test.go

@@ -0,0 +1,18 @@
+package keeper_test
+
+import (
+	evmtypes "github.com/evmos/ethermint/x/evm/types"
+	"github.com/tendermint/tendermint/abci/types"
+)
+
+func (suite *KeeperTestSuite) TestEndBlock() {
+	em := suite.ctx.EventManager()
+	suite.Require().Equal(0, len(em.Events()))
+
+	res := suite.app.EvmKeeper.EndBlock(suite.ctx, types.RequestEndBlock{})
+	suite.Require().Equal([]types.ValidatorUpdate{}, res)
+
+	// should emit 1 EventTypeBlockBloom event on EndBlock
+	suite.Require().Equal(1, len(em.Events()))
+	suite.Require().Equal(evmtypes.EventTypeBlockBloom, em.Events()[0].Type)
+}