refactor: remove simapp from x/staking module (cosmos#13101)

## Description

Closes: cosmos#13099 



---

### 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)

CHANGELOG.md

@@ -70,8 +70,10 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * [#12886](https://github.com/cosmos/cosmos-sdk/pull/12886) Amortize cost of processing cache KV store
 * [#12953](https://github.com/cosmos/cosmos-sdk/pull/12953) Change the default priority mechanism to be based on gas price.
 * [#13048](https://github.com/cosmos/cosmos-sdk/pull/13048) Add handling of AccountNumberStoreKeyPrefix to the x/auth simulation decoder.
+* [#13101](https://github.com/cosmos/cosmos-sdk/pull/13101) Remove weights from `simapp/params` and `testutil/sims`. They are now in their respective modules.
 * (simapp) [#13107](https://github.com/cosmos/cosmos-sdk/pull/13107) Call `SetIAVLCacheSize` with the configured value in simapp.
 
+
 ### State Machine Breaking
 
 * (x/distribution) [#12852](https://github.com/cosmos/cosmos-sdk/pull/12852) Deprecate `CommunityPoolSpendProposal`. Please execute a `MsgCommunityPoolSpend` message via the new v1 `x/gov` module instead. This message can be used to directly fund the `x/gov` module account.

x/distribution/simulation/operations.go

@@ -9,7 +9,6 @@ import (
 	"github.com/cosmos/cosmos-sdk/codec"
 	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"
 	simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
 	"github.com/cosmos/cosmos-sdk/x/auth/tx"
@@ -26,35 +25,40 @@ const (
 	OpWeightMsgWithdrawDelegationReward    = "op_weight_msg_withdraw_delegation_reward"
 	OpWeightMsgWithdrawValidatorCommission = "op_weight_msg_withdraw_validator_commission"
 	OpWeightMsgFundCommunityPool           = "op_weight_msg_fund_community_pool"
+
+	DefaultWeightMsgSetWithdrawAddress          int = 50
+	DefaultWeightMsgWithdrawDelegationReward    int = 50
+	DefaultWeightMsgWithdrawValidatorCommission int = 50
+	DefaultWeightMsgFundCommunityPool           int = 50
 )
 
 // WeightedOperations returns all the operations from the module with their respective weights
 func WeightedOperations(appParams simtypes.AppParams, cdc codec.JSONCodec, ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper, sk types.StakingKeeper) simulation.WeightedOperations {
 	var weightMsgSetWithdrawAddress int
 	appParams.GetOrGenerate(cdc, OpWeightMsgSetWithdrawAddress, &weightMsgSetWithdrawAddress, nil,
 		func(_ *rand.Rand) {
-			weightMsgSetWithdrawAddress = simtestutil.DefaultWeightMsgSetWithdrawAddress
+			weightMsgSetWithdrawAddress = DefaultWeightMsgSetWithdrawAddress
 		},
 	)
 
 	var weightMsgWithdrawDelegationReward int
 	appParams.GetOrGenerate(cdc, OpWeightMsgWithdrawDelegationReward, &weightMsgWithdrawDelegationReward, nil,
 		func(_ *rand.Rand) {
-			weightMsgWithdrawDelegationReward = simtestutil.DefaultWeightMsgWithdrawDelegationReward
+			weightMsgWithdrawDelegationReward = DefaultWeightMsgWithdrawDelegationReward
 		},
 	)
 
 	var weightMsgWithdrawValidatorCommission int
 	appParams.GetOrGenerate(cdc, OpWeightMsgWithdrawValidatorCommission, &weightMsgWithdrawValidatorCommission, nil,
 		func(_ *rand.Rand) {
-			weightMsgWithdrawValidatorCommission = simtestutil.DefaultWeightMsgWithdrawValidatorCommission
+			weightMsgWithdrawValidatorCommission = DefaultWeightMsgWithdrawValidatorCommission
 		},
 	)
 
 	var weightMsgFundCommunityPool int
 	appParams.GetOrGenerate(cdc, OpWeightMsgFundCommunityPool, &weightMsgFundCommunityPool, nil,
 		func(_ *rand.Rand) {
-			weightMsgFundCommunityPool = simtestutil.DefaultWeightMsgFundCommunityPool
+			weightMsgFundCommunityPool = DefaultWeightMsgFundCommunityPool
 		},
 	)
 

x/gov/simulation/operations.go

@@ -38,6 +38,7 @@ const (
 	DefaultWeightMsgDeposit      = 100
 	DefaultWeightMsgVote         = 67
 	DefaultWeightMsgVoteWeighted = 33
+	DefaultWeightTextProposal    = 5
 )
 
 // WeightedOperations returns all the operations from the module with their respective weights

x/gov/simulation/proposals.go

@@ -3,7 +3,6 @@ package simulation
 import (
 	"math/rand"
 
-	simtestutil "github.com/cosmos/cosmos-sdk/testutil/sims"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
 	"github.com/cosmos/cosmos-sdk/x/gov/types/v1beta1"
@@ -18,7 +17,7 @@ func ProposalContents() []simtypes.WeightedProposalContent {
 	return []simtypes.WeightedProposalContent{
 		simulation.NewWeightedProposalContent(
 			OpWeightMsgDeposit,
-			simtestutil.DefaultWeightTextProposal,
+			DefaultWeightTextProposal,
 			SimulateTextProposalContent,
 		),
 	}

x/gov/simulation/proposals_test.go

@@ -7,7 +7,6 @@ import (
 	"github.com/stretchr/testify/require"
 	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
 
-	simtestutil "github.com/cosmos/cosmos-sdk/testutil/sims"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
 	"github.com/cosmos/cosmos-sdk/x/gov/simulation"
@@ -29,7 +28,7 @@ func TestProposalContents(t *testing.T) {
 
 	// tests w0 interface:
 	require.Equal(t, simulation.OpWeightMsgDeposit, w0.AppParamsKey())
-	require.Equal(t, simtestutil.DefaultWeightTextProposal, w0.DefaultWeight())
+	require.Equal(t, simulation.DefaultWeightTextProposal, w0.DefaultWeight())
 
 	content := w0.ContentSimulatorFn()(r, ctx, accounts)
 

x/params/simulation/proposals.go

@@ -1,20 +1,22 @@
 package simulation
 
 import (
-	simtestutil "github.com/cosmos/cosmos-sdk/testutil/sims"
 	simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
 	"github.com/cosmos/cosmos-sdk/x/simulation"
 )
 
-// OpWeightSubmitParamChangeProposal app params key for param change proposal
-const OpWeightSubmitParamChangeProposal = "op_weight_submit_param_change_proposal"
+const (
+	// OpWeightSubmitParamChangeProposal app params key for param change proposal
+	OpWeightSubmitParamChangeProposal = "op_weight_submit_param_change_proposal"
+	DefaultWeightParamChangeProposal  = 5
+)
 
 // ProposalContents defines the module weighted proposals' contents
 func ProposalContents(paramChanges []simtypes.ParamChange) []simtypes.WeightedProposalContent {
 	return []simtypes.WeightedProposalContent{
 		simulation.NewWeightedProposalContent(
 			OpWeightSubmitParamChangeProposal,
-			simtestutil.DefaultWeightParamChangeProposal,
+			DefaultWeightParamChangeProposal,
 			SimulateParamChangeProposalContent(paramChanges),
 		),
 	}

x/params/simulation/proposals_test.go

@@ -7,7 +7,6 @@ import (
 	"github.com/stretchr/testify/require"
 	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
 
-	simtestutil "github.com/cosmos/cosmos-sdk/testutil/sims"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
 	"github.com/cosmos/cosmos-sdk/x/params/simulation"
@@ -32,7 +31,7 @@ func TestProposalContents(t *testing.T) {
 
 	// tests w0 interface:
 	require.Equal(t, simulation.OpWeightSubmitParamChangeProposal, w0.AppParamsKey())
-	require.Equal(t, simtestutil.DefaultWeightParamChangeProposal, w0.DefaultWeight())
+	require.Equal(t, simulation.DefaultWeightParamChangeProposal, w0.DefaultWeight())
 
 	content := w0.ContentSimulatorFn()(r, ctx, accounts)
 

x/simulation/operations_test.go

@@ -44,10 +44,10 @@ func (suite *SimTestSuite) TestWeightedOperations() {
 		opMsgRoute string
 		opMsgName  string
 	}{
-		{simtestutil.DefaultWeightMsgSetWithdrawAddress, types.ModuleName, types.TypeMsgSetWithdrawAddress},
-		{simtestutil.DefaultWeightMsgWithdrawDelegationReward, types.ModuleName, types.TypeMsgWithdrawDelegatorReward},
-		{simtestutil.DefaultWeightMsgWithdrawValidatorCommission, types.ModuleName, types.TypeMsgWithdrawValidatorCommission},
-		{simtestutil.DefaultWeightMsgFundCommunityPool, types.ModuleName, types.TypeMsgFundCommunityPool},
+		{simulation.DefaultWeightMsgSetWithdrawAddress, types.ModuleName, types.TypeMsgSetWithdrawAddress},
+		{simulation.DefaultWeightMsgWithdrawDelegationReward, types.ModuleName, types.TypeMsgWithdrawDelegatorReward},
+		{simulation.DefaultWeightMsgWithdrawValidatorCommission, types.ModuleName, types.TypeMsgWithdrawValidatorCommission},
+		{simulation.DefaultWeightMsgFundCommunityPool, types.ModuleName, types.TypeMsgFundCommunityPool},
 	}
 
 	for i, w := range weightesOps {

x/slashing/simulation/operations.go

@@ -21,7 +21,8 @@ import (
 //
 //nolint:gosec // these are not hardcoded credentials.
 const (
-	OpWeightMsgUnjail = "op_weight_msg_unjail"
+	OpWeightMsgUnjail      = "op_weight_msg_unjail"
+	DefaultWeightMsgUnjail = 100
 )
 
 // WeightedOperations returns all the operations from the module with their respective weights
@@ -33,7 +34,7 @@ func WeightedOperations(
 	var weightMsgUnjail int
 	appParams.GetOrGenerate(cdc, OpWeightMsgUnjail, &weightMsgUnjail, nil,
 		func(_ *rand.Rand) {
-			weightMsgUnjail = simtestutil.DefaultWeightMsgUnjail
+			weightMsgUnjail = DefaultWeightMsgUnjail
 		},
 	)
 

x/slashing/simulation/operations_test.go

@@ -123,7 +123,7 @@ func (suite *SimTestSuite) TestWeightedOperations() {
 		weight     int
 		opMsgRoute string
 		opMsgName  string
-	}{{simtestutil.DefaultWeightMsgUnjail, types.ModuleName, types.TypeMsgUnjail}}
+	}{{simulation.DefaultWeightMsgUnjail, types.ModuleName, types.TypeMsgUnjail}}
 
 	weightesOps := simulation.WeightedOperations(appParams, suite.codec, suite.accountKeeper, suite.bankKeeper, suite.slashingKeeper, suite.stakingKeeper)
 	for i, w := range weightesOps {