Merge PR #4244: Param Proposal Simulation Messages; Minting Params Fix

x/simulation/params.go

@@ -2,6 +2,9 @@ package simulation
 
 import (
 	"math/rand"
+	"time"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
 const (
@@ -32,6 +35,75 @@ var (
 		{15, 92, 1},
 		{0, 3, 99},
 	})
+
+	// ModuleParamSimulator defines module parameter value simulators. All
+	// values simulated should be within valid acceptable range for the given
+	// parameter.
+	ModuleParamSimulator = map[string]func(r *rand.Rand) interface{}{
+		"MaxMemoCharacters": func(r *rand.Rand) interface{} {
+			return uint64(RandIntBetween(r, 100, 200))
+		},
+		"TxSigLimit": func(r *rand.Rand) interface{} {
+			return uint64(r.Intn(7) + 1)
+		},
+		"TxSizeCostPerByte": func(r *rand.Rand) interface{} {
+			return uint64(RandIntBetween(r, 5, 15))
+		},
+		"SigVerifyCostED25519": func(r *rand.Rand) interface{} {
+			return uint64(RandIntBetween(r, 500, 1000))
+		},
+		"SigVerifyCostSecp256k1": func(r *rand.Rand) interface{} {
+			return uint64(RandIntBetween(r, 500, 1000))
+		},
+		"DepositParams/MinDeposit": func(r *rand.Rand) interface{} {
+			return sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, int64(r.Intn(1e3)))}
+		},
+		"VotingParams/VotingPeriod": func(r *rand.Rand) interface{} {
+			return time.Duration(r.Intn(2*172800)) * time.Second
+		},
+		"TallyParams/Quorum": func(r *rand.Rand) interface{} {
+			return sdk.NewDecWithPrec(334, 3)
+		},
+		"TallyParams/Threshold": func(r *rand.Rand) interface{} {
+			return sdk.NewDecWithPrec(5, 1)
+		},
+		"TallyParams/Veto": func(r *rand.Rand) interface{} {
+			return sdk.NewDecWithPrec(334, 3)
+		},
+		"UnbondingTime": func(r *rand.Rand) interface{} {
+			return time.Duration(RandIntBetween(r, 60, 60*60*24*3*2)) * time.Second
+		},
+		"MaxValidators": func(r *rand.Rand) interface{} {
+			return uint16(r.Intn(250) + 1)
+		},
+		"SignedBlocksWindow": func(r *rand.Rand) interface{} {
+			return int64(RandIntBetween(r, 10, 1000))
+		},
+		"MinSignedPerWindow": func(r *rand.Rand) interface{} {
+			return sdk.NewDecWithPrec(int64(r.Intn(10)), 1)
+		},
+		"DowntimeJailDuration": func(r *rand.Rand) interface{} {
+			return time.Duration(RandIntBetween(r, 60, 60*60*24)) * time.Second
+		},
+		"SlashFractionDoubleSign": func(r *rand.Rand) interface{} {
+			return sdk.NewDec(1).Quo(sdk.NewDec(int64(r.Intn(50) + 1)))
+		},
+		"SlashFractionDowntime": func(r *rand.Rand) interface{} {
+			return sdk.NewDec(1).Quo(sdk.NewDec(int64(r.Intn(200) + 1)))
+		},
+		"InflationRateChange": func(r *rand.Rand) interface{} {
+			return sdk.NewDecWithPrec(int64(r.Intn(99)), 2)
+		},
+		"InflationMax": func(r *rand.Rand) interface{} {
+			return sdk.NewDecWithPrec(20, 2)
+		},
+		"InflationMin": func(r *rand.Rand) interface{} {
+			return sdk.NewDecWithPrec(7, 2)
+		},
+		"GoalBonded": func(r *rand.Rand) interface{} {
+			return sdk.NewDecWithPrec(67, 2)
+		},
+	}
 )
 
 // Simulation parameters