refactor: Use mocks for x/authz testing (#12799)

## Description Closes: #12761 --- ### Author Checklist *All items are required. Please add a note to the item if the item is not applicable and please add links to any relevant follow up issues.* I have... - [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [ ] added `!` to the type prefix if API or client breaking change - [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting)) - [ ] provided a link to the relevant issue or specification - [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/building-modules) - [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#testing) - [ ] added a changelog entry to `CHANGELOG.md` - [ ] included comments for [documenting Go code](https://blog.golang.org/godoc) - [ ] updated the relevant documentation or specification - [ ] reviewed "Files changed" and left comments if necessary - [ ] confirmed all CI checks have passed ### Reviewers Checklist *All items are required. Please add a note if the item is not applicable and please add your handle next to the items reviewed if you only reviewed selected items.* I have... - [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [ ] confirmed `!` in the type prefix if API or client breaking change - [ ] confirmed all author checklist items have been addressed - [ ] reviewed state machine logic - [ ] reviewed API design and naming - [ ] reviewed documentation is accurate - [ ] reviewed tests and test coverage - [ ] manually tested (if applicable)
2022-08-10 13:34:28 +05:30 · 2022-08-10 13:34:28 +05:30 · f7e46ae6d3
parent 2bb48e8cd2
commit f7e46ae6d3
10 changed files with 276 additions and 76 deletions
--- a/scripts/mockgen.sh
+++ b/scripts/mockgen.sh
@ -17,5 +17,6 @@ $mockgen_cmd -source=x/params/proposal_handler_test.go -package testutil -destin
 $mockgen_cmd -source=x/crisis/types/expected_keepers.go -package testutil -destination x/crisis/testutil/expected_keepers_mocks.go
 $mockgen_cmd -source=x/auth/types/expected_keepers.go -package testutil -destination x/auth/testutil/expected_keepers_mocks.go
 $mockgen_cmd -source=x/auth/ante/expected_keepers.go -package testutil -destination x/auth/ante/testutil/expected_keepers_mocks.go
+$mockgen_cmd -source=x/authz/expected_keepers.go -package testutil -destination x/authz/testutil/expected_keepers_mocks.go
 $mockgen_cmd -source=x/bank/types/expected_keepers.go -package testutil -destination x/bank/testutil/expected_keepers_mocks.go
 $mockgen_cmd -source=x/evidence/types/expected_keepers.go -package testutil -destination x/evidence/testutil/expected_keepers_mocks.go
--- a/x/authz/keeper/genesis_test.go
+++ b/x/authz/keeper/genesis_test.go
@ -5,31 +5,55 @@ import (
 	"time"

 	"github.com/stretchr/testify/suite"
+	"github.com/tendermint/tendermint/libs/log"
 	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"

+	"github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1"
-	simtestutil "github.com/cosmos/cosmos-sdk/testutil/sims"
+	"github.com/cosmos/cosmos-sdk/testutil"
 	sdk "github.com/cosmos/cosmos-sdk/types"
+	moduletestutil "github.com/cosmos/cosmos-sdk/types/module/testutil"
 	"github.com/cosmos/cosmos-sdk/x/authz/keeper"
-	"github.com/cosmos/cosmos-sdk/x/authz/testutil"
+	authzmodule "github.com/cosmos/cosmos-sdk/x/authz/module"
+	authztestutil "github.com/cosmos/cosmos-sdk/x/authz/testutil"
 	bank "github.com/cosmos/cosmos-sdk/x/bank/types"
+	"github.com/golang/mock/gomock"
 )

 type GenesisTestSuite struct {
 	suite.Suite

-	ctx    sdk.Context
-	keeper keeper.Keeper
+	ctx           sdk.Context
+	keeper        keeper.Keeper
+	baseApp       *baseapp.BaseApp
+	accountKeeper *authztestutil.MockAccountKeeper
+	encCfg        moduletestutil.TestEncodingConfig
 }

 func (suite *GenesisTestSuite) SetupTest() {
-	app, err := simtestutil.Setup(
-		testutil.AppConfig,
-		&suite.keeper,
-	)
-	suite.Require().NoError(err)
+	key := sdk.NewKVStoreKey(keeper.StoreKey)
+	testCtx := testutil.DefaultContextWithDB(suite.T(), key, sdk.NewTransientStoreKey("transient_test"))
+	suite.ctx = testCtx.Ctx.WithBlockHeader(tmproto.Header{Height: 1})
+	suite.encCfg = moduletestutil.MakeTestEncodingConfig(authzmodule.AppModuleBasic{})

-	suite.ctx = app.BaseApp.NewContext(false, tmproto.Header{Height: 1})
+	// gomock initializations
+	ctrl := gomock.NewController(suite.T())
+	suite.accountKeeper = authztestutil.NewMockAccountKeeper(ctrl)
+
+	suite.baseApp = baseapp.NewBaseApp(
+		"authz",
+		log.NewNopLogger(),
+		testCtx.DB,
+		suite.encCfg.TxConfig.TxDecoder(),
+	)
+	suite.baseApp.SetCMS(testCtx.CMS)
+
+	bank.RegisterInterfaces(suite.encCfg.InterfaceRegistry)
+
+	msr := suite.baseApp.MsgServiceRouter()
+	msr.SetInterfaceRegistry(suite.encCfg.InterfaceRegistry)
+
+	suite.keeper = keeper.NewKeeper(key, suite.encCfg.Codec, msr, suite.accountKeeper)
 }

 var (
--- a/x/authz/keeper/grpc_query_test.go
+++ b/x/authz/keeper/grpc_query_test.go
@ -69,7 +69,7 @@ func (suite *TestSuite) TestGRPCQueryAuthorization() {
 			func(require *require.Assertions, res *authz.QueryGrantsResponse) {
 				var auth authz.Authorization
 				require.Equal(1, len(res.Grants))
-				err := suite.interfaceRegistry.UnpackAny(res.Grants[0].Authorization, &auth)
+				err := suite.encCfg.InterfaceRegistry.UnpackAny(res.Grants[0].Authorization, &auth)
 				require.NoError(err)
 				require.NotNil(auth)
 				require.Equal(auth.String(), expAuthorization.String())
@ -135,7 +135,7 @@ func (suite *TestSuite) TestGRPCQueryAuthorizations() {
 			func(res *authz.QueryGrantsResponse) {
 				var auth authz.Authorization
 				suite.Require().Equal(1, len(res.Grants))
-				err := suite.interfaceRegistry.UnpackAny(res.Grants[0].Authorization, &auth)
+				err := suite.encCfg.InterfaceRegistry.UnpackAny(res.Grants[0].Authorization, &auth)
 				suite.Require().NoError(err)
 				suite.Require().NotNil(auth)
 				suite.Require().Equal(auth.String(), expAuthorization.String())
--- a/x/authz/keeper/keeper_test.go
+++ b/x/authz/keeper/keeper_test.go
@ -4,21 +4,23 @@ import (
 	"testing"
 	"time"

+	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/suite"
 	tmtime "github.com/tendermint/tendermint/libs/time"
 	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"

 	"github.com/cosmos/cosmos-sdk/baseapp"
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
+	"github.com/cosmos/cosmos-sdk/testutil"
 	simtestutil "github.com/cosmos/cosmos-sdk/testutil/sims"
 	sdk "github.com/cosmos/cosmos-sdk/types"
+	moduletestutil "github.com/cosmos/cosmos-sdk/types/module/testutil"
 	"github.com/cosmos/cosmos-sdk/x/authz"
 	authzkeeper "github.com/cosmos/cosmos-sdk/x/authz/keeper"
-	"github.com/cosmos/cosmos-sdk/x/authz/testutil"
-	bankkeeper "github.com/cosmos/cosmos-sdk/x/bank/keeper"
-	banktestutil "github.com/cosmos/cosmos-sdk/x/bank/testutil"
+	authzmodule "github.com/cosmos/cosmos-sdk/x/authz/module"
+	authztestutil "github.com/cosmos/cosmos-sdk/x/authz/testutil"
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
-	stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"
+	"github.com/tendermint/tendermint/libs/log"
 )

 var (
@ -34,34 +36,46 @@ type TestSuite struct {
 	ctx               sdk.Context
 	addrs             []sdk.AccAddress
 	authzKeeper       authzkeeper.Keeper
-	bankKeeper        bankkeeper.Keeper
+	accountKeeper     *authztestutil.MockAccountKeeper
+	bankKeeper        *authztestutil.MockBankKeeper
 	interfaceRegistry codectypes.InterfaceRegistry
+	baseApp           *baseapp.BaseApp
+	encCfg            moduletestutil.TestEncodingConfig
 	queryClient       authz.QueryClient
 }

 func (s *TestSuite) SetupTest() {
-	var stakingKeeper *stakingkeeper.Keeper
+	key := sdk.NewKVStoreKey(authzkeeper.StoreKey)
+	testCtx := testutil.DefaultContextWithDB(s.T(), key, sdk.NewTransientStoreKey("transient_test"))
+	s.ctx = testCtx.Ctx.WithBlockHeader(tmproto.Header{Time: tmtime.Now()})
+	s.encCfg = moduletestutil.MakeTestEncodingConfig(authzmodule.AppModuleBasic{})

-	app, err := simtestutil.Setup(
-		testutil.AppConfig,
-		&s.bankKeeper,
-		&stakingKeeper,
-		&s.authzKeeper,
-		&s.interfaceRegistry,
+	s.baseApp = baseapp.NewBaseApp(
+		"authz",
+		log.NewNopLogger(),
+		testCtx.DB,
+		s.encCfg.TxConfig.TxDecoder(),
 	)
-	s.Require().NoError(err)
+	s.baseApp.SetCMS(testCtx.CMS)
+	s.baseApp.SetInterfaceRegistry(s.encCfg.InterfaceRegistry)

-	ctx := app.BaseApp.NewContext(false, tmproto.Header{})
-	now := tmtime.Now()
-	ctx = ctx.WithBlockHeader(tmproto.Header{Time: now})
-	queryHelper := baseapp.NewQueryServerTestHelper(ctx, s.interfaceRegistry)
+	s.addrs = simtestutil.CreateIncrementalAccounts(3)
+
+	// gomock initializations
+	ctrl := gomock.NewController(s.T())
+	s.accountKeeper = authztestutil.NewMockAccountKeeper(ctrl)
+	s.bankKeeper = authztestutil.NewMockBankKeeper(ctrl)
+	banktypes.RegisterInterfaces(s.encCfg.InterfaceRegistry)
+	banktypes.RegisterMsgServer(s.baseApp.MsgServiceRouter(), s.bankKeeper)
+
+	s.authzKeeper = authzkeeper.NewKeeper(key, s.encCfg.Codec, s.baseApp.MsgServiceRouter(), s.accountKeeper)
+
+	queryHelper := baseapp.NewQueryServerTestHelper(s.ctx, s.encCfg.InterfaceRegistry)
 	authz.RegisterQueryServer(queryHelper, s.authzKeeper)
 	queryClient := authz.NewQueryClient(queryHelper)
 	s.queryClient = queryClient

-	s.ctx = ctx
 	s.queryClient = queryClient
-	s.addrs = simtestutil.AddTestAddrsIncremental(s.bankKeeper, stakingKeeper, ctx, 3, sdk.NewInt(30000000))
 }

 func (s *TestSuite) TestKeeper() {
@ -147,8 +161,6 @@ func (s *TestSuite) TestDispatchAction() {
 	recipientAddr := addrs[2]
 	a := banktypes.NewSendAuthorization(coins100, nil)

-	require.NoError(banktestutil.FundAccount(s.bankKeeper, s.ctx, granterAddr, coins1000))
-
 	testCases := []struct {
 		name      string
 		req       authz.MsgExec
@ -291,7 +303,6 @@ func (s *TestSuite) TestDispatchedEvents() {
 	granterAddr := addrs[0]
 	granteeAddr := addrs[1]
 	recipientAddr := addrs[2]
-	require.NoError(banktestutil.FundAccount(s.bankKeeper, s.ctx, granterAddr, coins1000))
 	expiration := s.ctx.BlockTime().Add(1 * time.Second) // must be in the future

 	msgs := authz.NewMsgExec(granteeAddr, []sdk.Msg{
@ -321,13 +332,11 @@ func (s *TestSuite) TestDispatchedEvents() {
 	events := s.ctx.EventManager().Events()

 	// get last 5 events (events that occur *after* the grant)
-	events = events[len(events)-5:]
+	events = events[len(events)-2:]

 	requiredEvents := map[string]bool{
-		"coin_spent":    false,
-		"coin_received": false,
-		"transfer":      false,
-		"message":       false,
+		"cosmos.authz.v1beta1.EventGrant":  true,
+		"cosmos.authz.v1beta1.EventRevoke": true,
 	}
 	for _, e := range events {
 		requiredEvents[e.Type] = true
--- a/x/authz/module/abci_test.go
+++ b/x/authz/module/abci_test.go
@ -5,37 +5,42 @@ import (
 	"time"

 	"github.com/cosmos/cosmos-sdk/baseapp"
-	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
+	"github.com/cosmos/cosmos-sdk/testutil"
 	simtestutil "github.com/cosmos/cosmos-sdk/testutil/sims"
 	sdk "github.com/cosmos/cosmos-sdk/types"
+	moduletestutil "github.com/cosmos/cosmos-sdk/types/module/testutil"
+	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
 	"github.com/cosmos/cosmos-sdk/x/authz"
 	"github.com/cosmos/cosmos-sdk/x/authz/keeper"
 	authzmodule "github.com/cosmos/cosmos-sdk/x/authz/module"
-	"github.com/cosmos/cosmos-sdk/x/authz/testutil"
-	bankkeeper "github.com/cosmos/cosmos-sdk/x/bank/keeper"
+	authztestutil "github.com/cosmos/cosmos-sdk/x/authz/testutil"
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
-	stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"
+	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/require"
+	"github.com/tendermint/tendermint/libs/log"
+
 	"github.com/tendermint/tendermint/proto/tendermint/types"
 )

 func TestExpiredGrantsQueue(t *testing.T) {
-	var interfaceRegistry codectypes.InterfaceRegistry
-	var authzKeeper keeper.Keeper
-	var bankKeeper bankkeeper.Keeper
-	var stakingKeeper *stakingkeeper.Keeper

-	app, err := simtestutil.Setup(
-		testutil.AppConfig,
-		&interfaceRegistry,
-		&authzKeeper,
-		&bankKeeper,
-		&stakingKeeper,
+	key := sdk.NewKVStoreKey(keeper.StoreKey)
+	testCtx := testutil.DefaultContextWithDB(t, key, sdk.NewTransientStoreKey("transient_test"))
+	encCfg := moduletestutil.MakeTestEncodingConfig(authzmodule.AppModuleBasic{})
+	ctx := testCtx.Ctx.WithBlockHeader(types.Header{})
+
+	baseApp := baseapp.NewBaseApp(
+		"authz",
+		log.NewNopLogger(),
+		testCtx.DB,
+		encCfg.TxConfig.TxDecoder(),
 	)
-	require.NoError(t, err)
+	baseApp.SetCMS(testCtx.CMS)
+	baseApp.SetInterfaceRegistry(encCfg.InterfaceRegistry)

-	ctx := app.BaseApp.NewContext(false, types.Header{})
-	addrs := simtestutil.AddTestAddrsIncremental(bankKeeper, stakingKeeper, ctx, 5, sdk.NewInt(30000000))
+	banktypes.RegisterInterfaces(encCfg.InterfaceRegistry)
+
+	addrs := simtestutil.CreateIncrementalAccounts(5)
 	granter := addrs[0]
 	grantee1 := addrs[1]
 	grantee2 := addrs[2]
@ -46,6 +51,16 @@ func TestExpiredGrantsQueue(t *testing.T) {
 	smallCoins := sdk.NewCoins(sdk.NewInt64Coin("stake", 10))
 	sendAuthz := banktypes.NewSendAuthorization(smallCoins, nil)

+	ctrl := gomock.NewController(t)
+	accountKeeper := authztestutil.NewMockAccountKeeper(ctrl)
+	accountKeeper.EXPECT().GetAccount(gomock.Any(), granter).Return(authtypes.NewBaseAccountWithAddress(granter)).AnyTimes()
+	accountKeeper.EXPECT().GetAccount(gomock.Any(), grantee1).Return(authtypes.NewBaseAccountWithAddress(grantee1)).AnyTimes()
+	accountKeeper.EXPECT().GetAccount(gomock.Any(), grantee2).Return(authtypes.NewBaseAccountWithAddress(grantee2)).AnyTimes()
+	accountKeeper.EXPECT().GetAccount(gomock.Any(), grantee3).Return(authtypes.NewBaseAccountWithAddress(grantee3)).AnyTimes()
+	accountKeeper.EXPECT().GetAccount(gomock.Any(), grantee4).Return(authtypes.NewBaseAccountWithAddress(grantee4)).AnyTimes()
+
+	authzKeeper := keeper.NewKeeper(key, encCfg.Codec, baseApp.MsgServiceRouter(), accountKeeper)
+
 	save := func(grantee sdk.AccAddress, exp *time.Time) {
 		err := authzKeeper.SaveGrant(ctx, grantee, granter, sendAuthz, exp)
 		require.NoError(t, err, "Grant from %s", grantee.String())
@ -55,7 +70,7 @@ func TestExpiredGrantsQueue(t *testing.T) {
 	save(grantee3, &expiration2)
 	save(grantee4, nil)

-	queryHelper := baseapp.NewQueryServerTestHelper(ctx, interfaceRegistry)
+	queryHelper := baseapp.NewQueryServerTestHelper(ctx, encCfg.InterfaceRegistry)
 	authz.RegisterQueryServer(queryHelper, authzKeeper)
 	queryClient := authz.NewQueryClient(queryHelper)

--- a/x/authz/simulation/decoder_test.go
+++ b/x/authz/simulation/decoder_test.go
@ -7,28 +7,28 @@ import (

 	"github.com/stretchr/testify/require"

-	"cosmossdk.io/depinject"
-	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/kv"
 	"github.com/cosmos/cosmos-sdk/x/authz"
 	"github.com/cosmos/cosmos-sdk/x/authz/keeper"
+	authzmodule "github.com/cosmos/cosmos-sdk/x/authz/module"
 	"github.com/cosmos/cosmos-sdk/x/authz/simulation"
-	"github.com/cosmos/cosmos-sdk/x/authz/testutil"
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
+
+	moduletestutil "github.com/cosmos/cosmos-sdk/types/module/testutil"
 )

 func TestDecodeStore(t *testing.T) {
-	var cdc codec.Codec
-	depinject.Inject(testutil.AppConfig, &cdc)
+	encCfg := moduletestutil.MakeTestEncodingConfig(authzmodule.AppModuleBasic{})
+	banktypes.RegisterInterfaces(encCfg.InterfaceRegistry)

-	dec := simulation.NewDecodeStore(cdc)
+	dec := simulation.NewDecodeStore(encCfg.Codec)

 	now := time.Now().UTC()
 	e := now.Add(1)
 	sendAuthz := banktypes.NewSendAuthorization(sdk.NewCoins(sdk.NewInt64Coin("foo", 123)), nil)
 	grant, _ := authz.NewGrant(now, sendAuthz, &e)
-	grantBz, err := cdc.Marshal(&grant)
+	grantBz, err := encCfg.Codec.Marshal(&grant)
 	require.NoError(t, err)
 	kvPairs := kv.Pairs{
 		Pairs: []kv.Pair{
--- a/x/authz/simulation/genesis_test.go
+++ b/x/authz/simulation/genesis_test.go
@ -7,26 +7,27 @@ import (

 	"github.com/stretchr/testify/require"

-	"cosmossdk.io/depinject"
 	sdkmath "cosmossdk.io/math"
-	"github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/types/module"
 	simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
 	"github.com/cosmos/cosmos-sdk/x/authz"
+	authzmodule "github.com/cosmos/cosmos-sdk/x/authz/module"
 	"github.com/cosmos/cosmos-sdk/x/authz/simulation"
-	"github.com/cosmos/cosmos-sdk/x/authz/testutil"
+	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
+
+	moduletestutil "github.com/cosmos/cosmos-sdk/types/module/testutil"
 )

 func TestRandomizedGenState(t *testing.T) {
-	var cdc codec.Codec
-	depinject.Inject(testutil.AppConfig, &cdc)
+	encCfg := moduletestutil.MakeTestEncodingConfig(authzmodule.AppModuleBasic{})
+	banktypes.RegisterInterfaces(encCfg.InterfaceRegistry)

 	s := rand.NewSource(1)
 	r := rand.New(s)

 	simState := module.SimulationState{
 		AppParams:    make(simtypes.AppParams),
-		Cdc:          cdc,
+		Cdc:          encCfg.Codec,
 		Rand:         r,
 		NumBonded:    3,
 		Accounts:     simtypes.RandomAccounts(r, 3),
--- a/x/authz/simulation/operations_test.go
+++ b/x/authz/simulation/operations_test.go
@ -23,7 +23,6 @@ import (
 	bankkeeper "github.com/cosmos/cosmos-sdk/x/bank/keeper"
 	banktestutil "github.com/cosmos/cosmos-sdk/x/bank/testutil"
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
-	stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"
 )

 type SimTestSuite struct {
@ -37,7 +36,6 @@ type SimTestSuite struct {
 	interfaceRegistry codectypes.InterfaceRegistry
 	accountKeeper     authkeeper.AccountKeeper
 	bankKeeper        bankkeeper.Keeper
-	stakingKeeper     *stakingkeeper.Keeper
 	authzKeeper       authzkeeper.Keeper
 }

@ -49,7 +47,6 @@ func (suite *SimTestSuite) SetupTest() {
 		&suite.interfaceRegistry,
 		&suite.accountKeeper,
 		&suite.bankKeeper,
-		&suite.stakingKeeper,
 		&suite.authzKeeper,
 	)
 	suite.Require().NoError(err)
@ -98,7 +95,7 @@ func (suite *SimTestSuite) TestWeightedOperations() {
 func (suite *SimTestSuite) getTestingAccounts(r *rand.Rand, n int) []simtypes.Account {
 	accounts := simtypes.RandomAccounts(r, n)

-	initAmt := suite.stakingKeeper.TokensFromConsensusPower(suite.ctx, 200000)
+	initAmt := sdk.TokensFromConsensusPower(200000, sdk.DefaultPowerReduction)
 	initCoins := sdk.NewCoins(sdk.NewCoin("stake", initAmt))

 	// add coins to the accounts
@ -156,7 +153,7 @@ func (suite *SimTestSuite) TestSimulateRevoke() {
 		},
 	})

-	initAmt := suite.stakingKeeper.TokensFromConsensusPower(suite.ctx, 200000)
+	initAmt := sdk.TokensFromConsensusPower(200000, sdk.DefaultPowerReduction)
 	initCoins := sdk.NewCoins(sdk.NewCoin("stake", initAmt))

 	granter := accounts[0]
@ -191,7 +188,7 @@ func (suite *SimTestSuite) TestSimulateExec() {
 	// begin a new block
 	suite.app.BeginBlock(abci.RequestBeginBlock{Header: tmproto.Header{Height: suite.app.LastBlockHeight() + 1, AppHash: suite.app.LastCommitID().Hash}})

-	initAmt := suite.stakingKeeper.TokensFromConsensusPower(suite.ctx, 200000)
+	initAmt := sdk.TokensFromConsensusPower(200000, sdk.DefaultPowerReduction)
 	initCoins := sdk.NewCoins(sdk.NewCoin("stake", initAmt))

 	granter := accounts[0]
--- a/x/authz/testutil/bank_helpers.go
+++ b/x/authz/testutil/bank_helpers.go
@ -0,0 +1,21 @@
+package testutil
+
+import (
+	"context"
+
+	bank "github.com/cosmos/cosmos-sdk/x/bank/types"
+)
+
+var _ bank.MsgServer = MockBankKeeper{}
+
+func (k MockBankKeeper) Send(goCtx context.Context, msg *bank.MsgSend) (*bank.MsgSendResponse, error) {
+	return nil, nil
+}
+
+func (k MockBankKeeper) MultiSend(goCtx context.Context, msg *bank.MsgMultiSend) (*bank.MsgMultiSendResponse, error) {
+	return nil, nil
+}
+
+func (k MockBankKeeper) UpdateParams(goCtx context.Context, req *bank.MsgUpdateParams) (*bank.MsgUpdateParamsResponse, error) {
+	return nil, nil
+}
--- a/x/authz/testutil/expected_keepers_mocks.go
+++ b/x/authz/testutil/expected_keepers_mocks.go
@ -0,0 +1,132 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: x/authz/expected_keepers.go
+
+// Package testutil is a generated GoMock package.
+package testutil
+
+import (
+	reflect "reflect"
+
+	types "github.com/cosmos/cosmos-sdk/types"
+	types0 "github.com/cosmos/cosmos-sdk/x/auth/types"
+	gomock "github.com/golang/mock/gomock"
+)
+
+// MockAccountKeeper is a mock of AccountKeeper interface.
+type MockAccountKeeper struct {
+	ctrl     *gomock.Controller
+	recorder *MockAccountKeeperMockRecorder
+}
+
+// MockAccountKeeperMockRecorder is the mock recorder for MockAccountKeeper.
+type MockAccountKeeperMockRecorder struct {
+	mock *MockAccountKeeper
+}
+
+// NewMockAccountKeeper creates a new mock instance.
+func NewMockAccountKeeper(ctrl *gomock.Controller) *MockAccountKeeper {
+	mock := &MockAccountKeeper{ctrl: ctrl}
+	mock.recorder = &MockAccountKeeperMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockAccountKeeper) EXPECT() *MockAccountKeeperMockRecorder {
+	return m.recorder
+}
+
+// GetAccount mocks base method.
+func (m *MockAccountKeeper) GetAccount(ctx types.Context, addr types.AccAddress) types0.AccountI {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetAccount", ctx, addr)
+	ret0, _ := ret[0].(types0.AccountI)
+	return ret0
+}
+
+// GetAccount indicates an expected call of GetAccount.
+func (mr *MockAccountKeeperMockRecorder) GetAccount(ctx, addr interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetAccount", reflect.TypeOf((*MockAccountKeeper)(nil).GetAccount), ctx, addr)
+}
+
+// NewAccountWithAddress mocks base method.
+func (m *MockAccountKeeper) NewAccountWithAddress(ctx types.Context, addr types.AccAddress) types0.AccountI {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "NewAccountWithAddress", ctx, addr)
+	ret0, _ := ret[0].(types0.AccountI)
+	return ret0
+}
+
+// NewAccountWithAddress indicates an expected call of NewAccountWithAddress.
+func (mr *MockAccountKeeperMockRecorder) NewAccountWithAddress(ctx, addr interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "NewAccountWithAddress", reflect.TypeOf((*MockAccountKeeper)(nil).NewAccountWithAddress), ctx, addr)
+}
+
+// SetAccount mocks base method.
+func (m *MockAccountKeeper) SetAccount(ctx types.Context, acc types0.AccountI) {
+	m.ctrl.T.Helper()
+	m.ctrl.Call(m, "SetAccount", ctx, acc)
+}
+
+// SetAccount indicates an expected call of SetAccount.
+func (mr *MockAccountKeeperMockRecorder) SetAccount(ctx, acc interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SetAccount", reflect.TypeOf((*MockAccountKeeper)(nil).SetAccount), ctx, acc)
+}
+
+// MockBankKeeper is a mock of BankKeeper interface.
+type MockBankKeeper struct {
+	ctrl     *gomock.Controller
+	recorder *MockBankKeeperMockRecorder
+}
+
+// MockBankKeeperMockRecorder is the mock recorder for MockBankKeeper.
+type MockBankKeeperMockRecorder struct {
+	mock *MockBankKeeper
+}
+
+// NewMockBankKeeper creates a new mock instance.
+func NewMockBankKeeper(ctrl *gomock.Controller) *MockBankKeeper {
+	mock := &MockBankKeeper{ctrl: ctrl}
+	mock.recorder = &MockBankKeeperMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockBankKeeper) EXPECT() *MockBankKeeperMockRecorder {
+	return m.recorder
+}
+
+// IsSendEnabledCoins mocks base method.
+func (m *MockBankKeeper) IsSendEnabledCoins(ctx types.Context, coins ...types.Coin) error {
+	m.ctrl.T.Helper()
+	varargs := []interface{}{ctx}
+	for _, a := range coins {
+		varargs = append(varargs, a)
+	}
+	ret := m.ctrl.Call(m, "IsSendEnabledCoins", varargs...)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// IsSendEnabledCoins indicates an expected call of IsSendEnabledCoins.
+func (mr *MockBankKeeperMockRecorder) IsSendEnabledCoins(ctx interface{}, coins ...interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	varargs := append([]interface{}{ctx}, coins...)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "IsSendEnabledCoins", reflect.TypeOf((*MockBankKeeper)(nil).IsSendEnabledCoins), varargs...)
+}
+
+// SpendableCoins mocks base method.
+func (m *MockBankKeeper) SpendableCoins(ctx types.Context, addr types.AccAddress) types.Coins {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "SpendableCoins", ctx, addr)
+	ret0, _ := ret[0].(types.Coins)
+	return ret0
+}
+
+// SpendableCoins indicates an expected call of SpendableCoins.
+func (mr *MockBankKeeperMockRecorder) SpendableCoins(ctx, addr interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SpendableCoins", reflect.TypeOf((*MockBankKeeper)(nil).SpendableCoins), ctx, addr)
+}