fix: support custom chain IDs for testing (#774)

* Backport commits from main to v3 release branch (#682)

* reorganize channel handshake handler (#647)

* reorganize channel handshake handler

split out channel state changes into its own function.

* readjust 27-interchain-accounts to not rely on state being set before the application callback

* add changelog and migration doc entry

* Update modules/core/04-channel/keeper/handshake.go

* docs: ICA Overview (#626)

* docs: ica overview

* fix: ordering

* add spacing

* fix: spacing

* fix: remove bulletpoints

* fix: wording

* update go mod for security vulnerabilities (#655)

* update go mod for security vulnerabilities

* update package-lock.json

* update vue dependency (#662)

* bump glob-parent version in json package (#663)

* build(deps): bump actions/setup-go from 2.1.4 to 2.1.5 (#656)

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 2.1.4 to 2.1.5.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v2.1.4...v2.1.5)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: colin axnér <25233464+colin-axner@users.noreply.github.com>

* docs: begin removal of internal "spec" directories (#634)

* begin removal of spec docs within core ibc

* remove broken link

* Apply suggestions from code review

Co-authored-by: Damian Nolan <damiannolan@gmail.com>

* remove broken link

* remove broken links

* Apply suggestions from code review

Co-authored-by: Carlos Rodriguez <crodveg@yahoo.es>

Co-authored-by: Damian Nolan <damiannolan@gmail.com>
Co-authored-by: Carlos Rodriguez <crodveg@yahoo.es>

* Modify `OnChanOpenTry` application callback to perform app version negotitation (#646)

* remove NegotiateAppVersion and AppVersion gRPC (#643)

The NegotiateAppVersion callback has been removed from the IBC Application interface.
The gRPC AppVersion has been removed.
The app version negoitation will be handled by applications by returning the version in OnChanOpenTry.

* Modify `OnChanOpenTry` to return application version (#650)

* modify OnChanOpenTry to return negotiated version

modify IBCModule interface function OnChanOpenTry to return the negotiated app version. Tests have not been updated

* fix ibc_module_test.go tests

* fix tests

* Apply suggestions from code review

* add handshake test case

* add CHANGELOG and migration docs

* update documentation

* fix broken link

* fix broken link (#664)

* chore: update make build-docs, add docs build checker (#667)

* update Makefile, add docs build checker

* Update .github/workflows/check-docs.yml

Co-authored-by: Marko <marbar3778@yahoo.com>

Co-authored-by: Marko <marbar3778@yahoo.com>

* register ICA query server, fix panics in params query cli (#666)

Register the controller and host query servers to a chain.
Returns an error upon cli params query failure instead of panicing.

* update of roadmap with latest release (#653)

* update of roadmap with latest release and changed the way release versions are encoded

* fixed typo

Co-authored-by: Carlos Rodriguez <crodveg@gmail.com>

* build(deps): bump actions/checkout from 2.3.1 to 2.4.0 (#672)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.3.1 to 2.4.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2.3.1...v2.4.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* allow ics20 to connect to middleware (#675)

* allow ics20 to connect to middleware

Creates ics4Wrapper which allows middleware applications to only implement SendPacket to connect ics20 as an application in its middleware stack

* add changelog and migration doc

* fix migration doc spelling

* fix: register InterchainAccount as x/auth GenesisAccount (#676)

* adding GenesisAccount interface registration for InterchainAccount impl

* updating RegisterInterfaces ica godoc

* enable mergify for backports (#678)

Co-authored-by: Carlos Rodriguez <crodveg@gmail.com>

Co-authored-by: Sean King <seantking@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Damian Nolan <damiannolan@gmail.com>
Co-authored-by: Carlos Rodriguez <crodveg@yahoo.es>
Co-authored-by: Marko <marbar3778@yahoo.com>
Co-authored-by: Carlos Rodriguez <crodveg@gmail.com>

* fixes evmos tests

* cleanup

* changelog and cleanup

* pr suggestions. bump chainid

Co-authored-by: colin axnér <25233464+colin-axner@users.noreply.github.com>
Co-authored-by: Sean King <seantking@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Damian Nolan <damiannolan@gmail.com>
Co-authored-by: Carlos Rodriguez <crodveg@yahoo.es>
Co-authored-by: Marko <marbar3778@yahoo.com>
Co-authored-by: Carlos Rodriguez <crodveg@gmail.com>
Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

CHANGELOG.md

@@ -43,6 +43,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### API Breaking
 
+* (testing) [\#774](https://github.com/cosmos/ibc-go/pull/774) Added `ChainID` arg to `SetupWithGenesisValSet` on the testing app. `Coordinator` generated ChainIDs now starts at index 1
 * (transfer) [\#675](https://github.com/cosmos/ibc-go/pull/675) Transfer `NewKeeper` now takes in an ICS4Wrapper. The ICS4Wrapper may be the IBC Channel Keeper when ICS20 is not used in a middleware stack. The ICS4Wrapper is required for applications wishing to connect middleware to ICS20.
 * (core) [\#650](https://github.com/cosmos/ibc-go/pull/650) Modify `OnChanOpenTry` IBC application module callback to return the negotiated app version. The version passed into the `MsgChanOpenTry` has been deprecated and will be ignored by core IBC.
 * (core) [\#629](https://github.com/cosmos/ibc-go/pull/629) Removes the `GetProofSpecs` from the ClientState interface. This function was previously unused by core IBC.

modules/apps/27-interchain-accounts/controller/ibc_module_test.go

@@ -54,8 +54,8 @@ func TestICATestSuite(t *testing.T) {
 
 func (suite *InterchainAccountsTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 }
 
 func NewICAPath(chainA, chainB *ibctesting.TestChain) *ibctesting.Path {

modules/apps/27-interchain-accounts/controller/keeper/keeper_test.go

@@ -47,9 +47,9 @@ type KeeperTestSuite struct {
 
 func (suite *KeeperTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 3)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
-	suite.chainC = suite.coordinator.GetChain(ibctesting.GetChainID(2))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
+	suite.chainC = suite.coordinator.GetChain(ibctesting.GetChainID(3))
 }
 
 func NewICAPath(chainA, chainB *ibctesting.TestChain) *ibctesting.Path {

modules/apps/27-interchain-accounts/host/ibc_module_test.go

@@ -56,8 +56,8 @@ func TestICATestSuite(t *testing.T) {
 
 func (suite *InterchainAccountsTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 }
 
 func NewICAPath(chainA, chainB *ibctesting.TestChain) *ibctesting.Path {

modules/apps/27-interchain-accounts/host/keeper/keeper_test.go

@@ -47,9 +47,9 @@ type KeeperTestSuite struct {
 
 func (suite *KeeperTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 3)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
-	suite.chainC = suite.coordinator.GetChain(ibctesting.GetChainID(2))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
+	suite.chainC = suite.coordinator.GetChain(ibctesting.GetChainID(3))
 }
 
 func NewICAPath(chainA, chainB *ibctesting.TestChain) *ibctesting.Path {

modules/apps/27-interchain-accounts/types/account_test.go

@@ -34,8 +34,8 @@ type TypesTestSuite struct {
 func (suite *TypesTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
 
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 }
 
 func TestTypesTestSuite(t *testing.T) {

modules/apps/transfer/keeper/keeper_test.go

@@ -27,9 +27,9 @@ type KeeperTestSuite struct {
 
 func (suite *KeeperTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 3)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
-	suite.chainC = suite.coordinator.GetChain(ibctesting.GetChainID(2))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
+	suite.chainC = suite.coordinator.GetChain(ibctesting.GetChainID(3))
 
 	queryHelper := baseapp.NewQueryServerTestHelper(suite.chainA.GetContext(), suite.chainA.GetSimApp().InterfaceRegistry())
 	types.RegisterQueryServer(queryHelper, suite.chainA.GetSimApp().TransferKeeper)

modules/apps/transfer/transfer_test.go

@@ -25,9 +25,9 @@ type TransferTestSuite struct {
 
 func (suite *TransferTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 3)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
-	suite.chainC = suite.coordinator.GetChain(ibctesting.GetChainID(2))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
+	suite.chainC = suite.coordinator.GetChain(ibctesting.GetChainID(3))
 }
 
 func NewTransferPath(chainA, chainB *ibctesting.TestChain) *ibctesting.Path {

modules/core/02-client/abci_test.go

@@ -28,8 +28,8 @@ type ClientTestSuite struct {
 func (suite *ClientTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
 
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 
 	// set localhost client
 	revision := types.ParseChainID(suite.chainA.GetContext().ChainID())

modules/core/02-client/keeper/keeper_test.go

@@ -73,8 +73,8 @@ type KeeperTestSuite struct {
 func (suite *KeeperTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
 
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 
 	isCheckTx := false
 	suite.now = time.Date(2020, 1, 2, 0, 0, 0, 0, time.UTC)

modules/core/02-client/legacy/v100/store_test.go

@@ -32,8 +32,8 @@ func TestLegacyTestSuite(t *testing.T) {
 // SetupTest creates a coordinator with 2 test chains.
 func (suite *LegacyTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 	// commit some blocks so that QueryProof returns valid proof (cannot return valid query if height <= 1)
 	suite.coordinator.CommitNBlocks(suite.chainA, 2)
 	suite.coordinator.CommitNBlocks(suite.chainB, 2)

modules/core/02-client/types/msgs_test.go

@@ -26,8 +26,8 @@ type TypesTestSuite struct {
 
 func (suite *TypesTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 }
 
 func TestTypesTestSuite(t *testing.T) {

modules/core/03-connection/keeper/keeper_test.go

@@ -22,8 +22,8 @@ type KeeperTestSuite struct {
 
 func (suite *KeeperTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 }
 
 func TestKeeperTestSuite(t *testing.T) {

modules/core/03-connection/types/msgs_test.go

@@ -41,8 +41,8 @@ type MsgTestSuite struct {
 func (suite *MsgTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
 
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 
 	app := simapp.Setup(false)
 	db := dbm.NewMemDB()

modules/core/04-channel/keeper/keeper_test.go

@@ -28,8 +28,8 @@ func TestKeeperTestSuite(t *testing.T) {
 // SetupTest creates a coordinator with 2 test chains.
 func (suite *KeeperTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 	// commit some blocks so that QueryProof returns valid proof (cannot return valid query if height <= 1)
 	suite.coordinator.CommitNBlocks(suite.chainA, 2)
 	suite.coordinator.CommitNBlocks(suite.chainB, 2)

modules/core/ante/ante_test.go

@@ -28,8 +28,8 @@ type AnteTestSuite struct {
 // SetupTest creates a coordinator with 2 test chains.
 func (suite *AnteTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 	// commit some blocks so that QueryProof returns valid proof (cannot return valid query if height <= 1)
 	suite.coordinator.CommitNBlocks(suite.chainA, 2)
 	suite.coordinator.CommitNBlocks(suite.chainB, 2)

modules/core/genesis_test.go

@@ -50,8 +50,8 @@ type IBCTestSuite struct {
 func (suite *IBCTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
 
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 }
 
 func TestIBCTestSuite(t *testing.T) {

modules/core/keeper/msg_server_test.go

@@ -38,8 +38,8 @@ type KeeperTestSuite struct {
 func (suite *KeeperTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
 
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 
 	// TODO: remove
 	// commit some blocks so that QueryProof returns valid proof (cannot return valid query if height <= 1)

modules/core/legacy/v100/genesis_test.go

@@ -38,8 +38,8 @@ func TestLegacyTestSuite(t *testing.T) {
 // SetupTest creates a coordinator with 2 test chains.
 func (suite *LegacyTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 	// commit some blocks so that QueryProof returns valid proof (cannot return valid query if height <= 1)
 	suite.coordinator.CommitNBlocks(suite.chainA, 2)
 	suite.coordinator.CommitNBlocks(suite.chainB, 2)

modules/light-clients/06-solomachine/types/solomachine_test.go

@@ -34,8 +34,8 @@ type SoloMachineTestSuite struct {
 
 func (suite *SoloMachineTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 
 	suite.solomachine = ibctesting.NewSolomachine(suite.T(), suite.chainA.Codec, "solomachinesingle", "testing", 1)
 	suite.solomachineMulti = ibctesting.NewSolomachine(suite.T(), suite.chainA.Codec, "solomachinemulti", "testing", 4)

modules/light-clients/07-tendermint/types/tendermint_test.go

@@ -57,8 +57,8 @@ type TendermintTestSuite struct {
 
 func (suite *TendermintTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2)
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0))
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1))
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2))
 	// commit some blocks so that QueryProof returns valid proof (cannot return valid query if height <= 1)
 	suite.coordinator.CommitNBlocks(suite.chainA, 2)
 	suite.coordinator.CommitNBlocks(suite.chainB, 2)

testing/README.md

@@ -155,8 +155,8 @@ func TestKeeperTestSuite(t *testing.T) {
 // SetupTest creates a coordinator with 2 test chains.
 func (suite *KeeperTestSuite) SetupTest() {
 	suite.coordinator = ibctesting.NewCoordinator(suite.T(), 2) // initializes 2 test chains
-	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(0)) // convenience and readability
-	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(1)) // convenience and readability
+	suite.chainA = suite.coordinator.GetChain(ibctesting.GetChainID(1)) // convenience and readability
+	suite.chainB = suite.coordinator.GetChain(ibctesting.GetChainID(2)) // convenience and readability
 }
 
 ```

testing/app.go

@@ -58,7 +58,7 @@ func SetupTestingApp() (TestingApp, map[string]json.RawMessage) {
 // that also act as delegators. For simplicity, each validator is bonded with a delegation
 // of one consensus engine unit (10^6) in the default token of the simapp from first genesis
 // account. A Nop logger is set in SimApp.
-func SetupWithGenesisValSet(t *testing.T, valSet *tmtypes.ValidatorSet, genAccs []authtypes.GenesisAccount, balances ...banktypes.Balance) TestingApp {
+func SetupWithGenesisValSet(t *testing.T, valSet *tmtypes.ValidatorSet, genAccs []authtypes.GenesisAccount, chainID string, balances ...banktypes.Balance) TestingApp {
 	app, genesisState := DefaultTestingAppInit()
 	// set genesis accounts
 	authGenesis := authtypes.NewGenesisState(authtypes.DefaultParams(), genAccs)
@@ -117,6 +117,7 @@ func SetupWithGenesisValSet(t *testing.T, valSet *tmtypes.ValidatorSet, genAccs
 	// init chain will set the validator set and initialize the genesis accounts
 	app.InitChain(
 		abci.RequestInitChain{
+			ChainId:         chainID,
 			Validators:      []abci.ValidatorUpdate{},
 			ConsensusParams: simapp.DefaultConsensusParams,
 			AppStateBytes:   stateBytes,
@@ -126,6 +127,7 @@ func SetupWithGenesisValSet(t *testing.T, valSet *tmtypes.ValidatorSet, genAccs
 	// commit genesis changes
 	app.Commit()
 	app.BeginBlock(abci.RequestBeginBlock{Header: tmproto.Header{
+		ChainID:            chainID,
 		Height:             app.LastBlockHeight() + 1,
 		AppHash:            app.LastCommitID().Hash,
 		ValidatorsHash:     valSet.Hash(),

testing/chain.go

@@ -90,7 +90,7 @@ func NewTestChain(t *testing.T, coord *Coordinator, chainID string) *TestChain {
 		Coins:   sdk.NewCoins(sdk.NewCoin(sdk.DefaultBondDenom, amount)),
 	}
 
-	app := SetupWithGenesisValSet(t, valSet, []authtypes.GenesisAccount{acc}, balance)
+	app := SetupWithGenesisValSet(t, valSet, []authtypes.GenesisAccount{acc}, chainID, balance)
 
 	// create current header and call begin block
 	header := tmproto.Header{

testing/coordinator.go

@@ -10,9 +10,8 @@ import (
 	abci "github.com/tendermint/tendermint/abci/types"
 )
 
-const ChainIDPrefix = "testchain"
-
 var (
+	ChainIDPrefix   = "testchain"
 	globalStartTime = time.Date(2020, 1, 2, 0, 0, 0, 0, time.UTC)
 	TimeIncrement   = time.Second * 5
 )
@@ -34,7 +33,7 @@ func NewCoordinator(t *testing.T, n int) *Coordinator {
 		CurrentTime: globalStartTime,
 	}
 
-	for i := 0; i < n; i++ {
+	for i := 1; i <= n; i++ {
 		chainID := GetChainID(i)
 		chains[chainID] = NewTestChain(t, coord, chainID)
 	}