move simulation params back to modules (#4839)

cosmos · Aug 5, 2019 · 52c18e0 · 52c18e0
1 parent 77d8bd9
commit 52c18e0
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Showing 14 changed files with 271 additions and 132 deletions.
diff --git a/x/auth/simulation/params.go b/x/auth/simulation/params.go
@@ -0,0 +1,35 @@
+package simulation
+
+import "math/rand"
+
+// Simulation parameter constants
+const (
+	MaxMemoChars           = "max_memo_characters"
+	TxSigLimit             = "tx_sig_limit"
+	TxSizeCostPerByte      = "tx_size_cost_per_byte"
+	SigVerifyCostED25519   = "sig_verify_cost_ed25519"
+	SigVerifyCostSECP256K1 = "sig_verify_cost_secp256k1"
+)
+
+// GenParams generates random auth parameters
+func GenParams(paramSims map[string]func(r *rand.Rand) interface{}) {
+	paramSims[MaxMemoChars] = func(r *rand.Rand) interface{} {
+		return uint64(RandIntBetween(r, 100, 200))
+	}
+
+	paramSims[TxSigLimit] = func(r *rand.Rand) interface{} {
+		return uint64(r.Intn(7) + 1)
+	}
+
+	paramSims[TxSizeCostPerByte] = func(r *rand.Rand) interface{} {
+		return uint64(RandIntBetween(r, 5, 15))
+	}
+
+	paramSims[SigVerifyCostED25519] = func(r *rand.Rand) interface{} {
+		return uint64(RandIntBetween(r, 500, 1000))
+	}
+
+	paramSims[SigVerifyCostSECP256K1] = func(r *rand.Rand) interface{} {
+		return uint64(RandIntBetween(r, 500, 1000))
+	}
+}
diff --git a/x/bank/simulation/params.go b/x/bank/simulation/params.go
@@ -0,0 +1,15 @@
+package simulation
+
+import "math/rand"
+
+// Simulation parameter constants
+const (
+	SendEnabled = "send_enabled"
+)
+
+// GenParams generates random bank parameters
+func GenParams(paramSims map[string]func(r *rand.Rand) interface{}) {
+	paramSims[SendEnabled] = func(r *rand.Rand) interface{} {
+		return r.Int63n(2) == 0
+	}
+}
diff --git a/x/distribution/simulation/msgs.go b/x/distribution/simulation/msgs.go
@@ -11,6 +11,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/gov"
 	govsim "github.com/cosmos/cosmos-sdk/x/gov/simulation"
 	"github.com/cosmos/cosmos-sdk/x/simulation"
+	simutil "github.com/cosmos/cosmos-sdk/x/simulation/util"
 )
 
 // SimulateMsgSetWithdrawAddress generates a MsgSetWithdrawAddress with random values.
@@ -95,15 +96,15 @@ func SimulateCommunityPoolSpendProposalContent(k distribution.Keeper) govsim.Con
 		balance := k.GetFeePool(ctx).CommunityPool
 		if len(balance) > 0 {
 			denomIndex := r.Intn(len(balance))
-			amount, goErr := simulation.RandPositiveInt(r, balance[denomIndex].Amount.TruncateInt())
+			amount, goErr := simutil.RandPositiveInt(r, balance[denomIndex].Amount.TruncateInt())
 			if goErr == nil {
 				denom := balance[denomIndex].Denom
 				coins = sdk.NewCoins(sdk.NewCoin(denom, amount.Mul(sdk.NewInt(2))))
 			}
 		}
 		return distribution.NewCommunityPoolSpendProposal(
-			simulation.RandStringOfLength(r, 10),
-			simulation.RandStringOfLength(r, 100),
+			simutil.RandStringOfLength(r, 10),
+			simutil.RandStringOfLength(r, 100),
 			recipientAcc.Address,
 			coins,
 		)

diff --git a/x/distribution/simulation/params.go b/x/distribution/simulation/params.go
@@ -0,0 +1,30 @@
+package simulation
+
+import (
+	"math/rand"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+
+// Simulation parameter constants
+const (
+	CommunityTax             = "community_tax"
+	BaseProposerReward       = "base_proposer_reward"
+	BonusProposerReward      = "bonus_proposer_reward"
+)
+
+// GenParams generates random distribution parameters
+func GenParams(paramSims map[string]func(r *rand.Rand) interface{}) {
+	paramSims[CommunityTax] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(1, 2).Add(sdk.NewDecWithPrec(int64(r.Intn(30)), 2))
+	}
+
+	paramSims[BaseProposerReward] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(1, 2).Add(sdk.NewDecWithPrec(int64(r.Intn(30)), 2))
+	}
+
+	paramSims[BonusProposerReward] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(1, 2).Add(sdk.NewDecWithPrec(int64(r.Intn(30)), 2))
+	}
+}
diff --git a/x/gov/simulation/msgs.go b/x/gov/simulation/msgs.go
@@ -10,6 +10,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/gov"
 	"github.com/cosmos/cosmos-sdk/x/simulation"
+	simutil "github.com/cosmos/cosmos-sdk/x/simulation/util"
 )
 
 // ContentSimulator defines a function type alias for generating random proposal
@@ -109,8 +110,8 @@ func simulateHandleMsgSubmitProposal(msg gov.MsgSubmitProposal, handler sdk.Hand
 // SimulateTextProposalContent returns random text proposal content.
 func SimulateTextProposalContent(r *rand.Rand, _ *baseapp.BaseApp, _ sdk.Context, _ []simulation.Account) gov.Content {
 	return gov.NewTextProposal(
-		simulation.RandStringOfLength(r, 140),
-		simulation.RandStringOfLength(r, 5000),
+		simutil.RandStringOfLength(r, 140),
+		simutil.RandStringOfLength(r, 5000),
 	)
 }
 

diff --git a/x/gov/simulation/params.go b/x/gov/simulation/params.go
@@ -0,0 +1,40 @@
+package simulation
+
+import (
+	"math/rand"
+	"time"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+// Simulation parameter constants
+const (
+	DepositParamsMinDeposit  = "deposit_params_min_deposit"
+	VotingParamsVotingPeriod = "voting_params_voting_period"
+	TallyParamsQuorum        = "tally_params_quorum"
+	TallyParamsThreshold     = "tally_params_threshold"
+	TallyParamsVeto          = "tally_params_veto"
+)
+
+// GenParams generates random gov parameters
+func GenParams(paramSims map[string]func(r *rand.Rand) interface{}) {
+	paramSims[DepositParamsMinDeposit] = func(r *rand.Rand) interface{} {
+		return sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, int64(RandIntBetween(r, 1, 1e3)))}
+	}
+
+	paramSims[VotingParamsVotingPeriod] = func(r *rand.Rand) interface{} {
+		return time.Duration(RandIntBetween(r, 1, 2*60*60*24*2)) * time.Second
+	}
+
+	paramSims[TallyParamsQuorum] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(int64(RandIntBetween(r, 334, 500)), 3)
+	}
+
+	paramSims[TallyParamsThreshold] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(int64(RandIntBetween(r, 450, 550)), 3)
+	}
+
+	paramSims[TallyParamsVeto] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(int64(RandIntBetween(r, 250, 334)), 3)
+	}
+}
diff --git a/x/mint/simulation/params.go b/x/mint/simulation/params.go
@@ -0,0 +1,39 @@
+package simulation
+
+import (
+	"math/rand"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+// Simulation parameter constants
+const (
+	InflationRateChange = "inflation_rate_change"
+	Inflation           = "inflation"
+	InflationMax        = "inflation_max"
+	InflationMin        = "inflation_min"
+	GoalBonded          = "goal_bonded"
+)
+
+// GenParams generates random gov parameters
+func GenParams(paramSims map[string]func(r *rand.Rand) interface{}) {
+	paramSims[InflationRateChange] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(int64(r.Intn(99)), 2)
+	}
+
+	paramSims[Inflation] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(int64(r.Intn(99)), 2)
+	}
+
+	paramSims[InflationMax] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(20, 2)
+	}
+
+	paramSims[InflationMin] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(7, 2)
+	}
+
+	paramSims[GoalBonded] = func(r *rand.Rand) interface{} {
+		return sdk.NewDecWithPrec(67, 2)
+	}
+}
diff --git a/x/params/simulation/msgs.go b/x/params/simulation/msgs.go
@@ -11,6 +11,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/gov"
 	"github.com/cosmos/cosmos-sdk/x/params"
 	"github.com/cosmos/cosmos-sdk/x/simulation"
+	simutil "github.com/cosmos/cosmos-sdk/x/simulation/util"
 )
 
 type simParamChange struct {
@@ -111,7 +112,7 @@ var paramChangePool = []simParamChange{
 			}
 
 			pc := make(map[string]string)
-			numChanges := simulation.RandIntBetween(r, 1, len(changes))
+			numChanges := simutil.RandIntBetween(r, 1, len(changes))
 			for i := 0; i < numChanges; i++ {
 				c := changes[r.Intn(len(changes))]
 
@@ -159,7 +160,7 @@ var paramChangePool = []simParamChange{
 // It will generate a ParameterChangeProposal object with anywhere between 1 and
 // 3 parameter changes all of which have random, but valid values.
 func SimulateParamChangeProposalContent(r *rand.Rand, _ *baseapp.BaseApp, _ sdk.Context, _ []simulation.Account) gov.Content {
-	numChanges := simulation.RandIntBetween(r, 1, len(paramChangePool)/2)
+	numChanges := simutil.RandIntBetween(r, 1, len(paramChangePool)/2)
 	paramChanges := make([]params.ParamChange, numChanges, numChanges)
 	paramChangesKeys := make(map[string]struct{})
 
@@ -178,8 +179,8 @@ func SimulateParamChangeProposalContent(r *rand.Rand, _ *baseapp.BaseApp, _ sdk.
 	}
 
 	return params.NewParameterChangeProposal(
-		simulation.RandStringOfLength(r, 140),
-		simulation.RandStringOfLength(r, 5000),
+		simutil.RandStringOfLength(r, 140),
+		simutil.RandStringOfLength(r, 5000),
 		paramChanges,
 	)
 }
diff --git a/x/simulation/alias.go b/x/simulation/alias.go
@@ -0,0 +1,20 @@
+// nolint
+// autogenerated code using github.com/rigelrozanski/multitool
+// aliases generated for the following subdirectories:
+// ALIASGEN: github.com/cosmos/cosmos-sdk/x/simulation/util
+package simulation
+
+import (
+	"github.com/cosmos/cosmos-sdk/x/simulation/util"
+)
+
+var (
+	// functions aliases
+	RandStringOfLength = util.RandStringOfLength
+	RandPositiveInt    = util.RandPositiveInt
+	RandomAmount       = util.RandomAmount
+	RandomDecAmount    = util.RandomDecAmount
+	RandTimestamp      = util.RandTimestamp
+	RandIntBetween     = util.RandIntBetween
+	DeriveRand         = util.DeriveRand
+)