Testing: fix block proposer and allow Default gas to be modified (backport #2657) (#2684)

* fix(testing): fix block proposer and allow Default gas to be modified (#2657)

* carry block proposer, and allow Default gas to be modified

* add changelog entry

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
Co-authored-by: colin axnér <25233464+colin-axner@users.noreply.github.com>
Co-authored-by: Carlos Rodriguez <carlos@interchain.io>
(cherry picked from commit f69761d)

# Conflicts:
#	CHANGELOG.md

* fix conflict

Co-authored-by: Ramiro Carlucho <ramirocarlucho@gmail.com>
Co-authored-by: Carlos Rodriguez <carlos@interchain.io>

Author: 3 people

CHANGELOG.md

@@ -76,6 +76,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (apps/27-interchain-accounts) [\#2290](https://github.com/cosmos/ibc-go/pull/2290) Changed `DefaultParams` function in `host` submodule to allow all messages by default. Defined a constant named `AllowAllHostMsgs` for `host` module to keep wildcard "*" string which allows all messages.   
 * (apps/27-interchain-accounts) [\#2297](https://github.com/cosmos/ibc-go/pull/2297) Adding cli command to generate ICS27 packet data.
 * (modules/core/keeper) [\#1728](https://github.com/cosmos/ibc-go/pull/2399) Updated channel callback errors to include portID & channelID for better identification of errors.
+* (testing) [\#2657](https://github.com/cosmos/ibc-go/pull/2657) Carry `ProposerAddress` through commited blocks. Allow `DefaultGenTxGas` to be modified.
 
 ### Features
 

testing/chain.go

@@ -291,6 +291,7 @@ func (chain *TestChain) NextBlock() {
 		Time:               chain.CurrentHeader.Time,
 		ValidatorsHash:     chain.Vals.Hash(),
 		NextValidatorsHash: chain.NextVals.Hash(),
+		ProposerAddress:    chain.CurrentHeader.ProposerAddress,
 	}
 
 	chain.App.BeginBlock(abci.RequestBeginBlock{Header: chain.CurrentHeader})

testing/simapp/helpers/test_helpers.go

@@ -12,11 +12,11 @@ import (
 	authsign "github.com/cosmos/cosmos-sdk/x/auth/signing"
 )
 
+// DefaultGenTxGas default gas for tx simulation
+var DefaultGenTxGas = uint64(1000000)
+
 // SimAppChainID hardcoded chainID for simulation
-const (
-	DefaultGenTxGas = 1000000
-	SimAppChainID   = "simulation-app"
-)
+const SimAppChainID = "simulation-app"
 
 // GenTx generates a signed mock transaction.
 func GenTx(gen client.TxConfig, msgs []sdk.Msg, feeAmt sdk.Coins, gas uint64, chainID string, accNums, accSeqs []uint64, priv ...cryptotypes.PrivKey) (sdk.Tx, error) {