cosmos-sdk/x/staking/simulation/genesis_test.go
Amaury 5cd741a878
revert: Turn staking power reduction into an on-chain param (#9495)
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## Description

Closes: #9447

This PR partially reverts #8505. Namely:
- it removes PowerReduction as a staking on-chain param
- however, it keeps #8505's API changes regarding adding a `powerReduction` function argument to staking functions. This allows us to rely less on global variables in said functions.

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---

### Author Checklist

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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/master/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/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/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
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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
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- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)
2021-06-14 14:45:15 +00:00

106 lines
4.5 KiB
Go

package simulation_test
import (
"encoding/json"
"math/rand"
"testing"
"github.com/stretchr/testify/require"
"github.com/cosmos/cosmos-sdk/codec"
codectypes "github.com/cosmos/cosmos-sdk/codec/types"
cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec"
"github.com/cosmos/cosmos-sdk/types/module"
simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
"github.com/cosmos/cosmos-sdk/x/staking/simulation"
"github.com/cosmos/cosmos-sdk/x/staking/types"
)
// TestRandomizedGenState tests the normal scenario of applying RandomizedGenState.
// Abonormal scenarios are not tested here.
func TestRandomizedGenState(t *testing.T) {
interfaceRegistry := codectypes.NewInterfaceRegistry()
cryptocodec.RegisterInterfaces(interfaceRegistry)
cdc := codec.NewProtoCodec(interfaceRegistry)
s := rand.NewSource(1)
r := rand.New(s)
simState := module.SimulationState{
AppParams: make(simtypes.AppParams),
Cdc: cdc,
Rand: r,
NumBonded: 3,
Accounts: simtypes.RandomAccounts(r, 3),
InitialStake: 1000,
GenState: make(map[string]json.RawMessage),
}
simulation.RandomizedGenState(&simState)
var stakingGenesis types.GenesisState
simState.Cdc.MustUnmarshalJSON(simState.GenState[types.ModuleName], &stakingGenesis)
require.Equal(t, uint32(207), stakingGenesis.Params.MaxValidators)
require.Equal(t, uint32(7), stakingGenesis.Params.MaxEntries)
require.Equal(t, uint32(8687), stakingGenesis.Params.HistoricalEntries)
require.Equal(t, "stake", stakingGenesis.Params.BondDenom)
require.Equal(t, float64(238280), stakingGenesis.Params.UnbondingTime.Seconds())
// check numbers of Delegations and Validators
require.Len(t, stakingGenesis.Delegations, 3)
require.Len(t, stakingGenesis.Validators, 3)
// check Delegations
require.Equal(t, "cosmos1tnh2q55v8wyygtt9srz5safamzdengsnqeycj3", stakingGenesis.Delegations[0].DelegatorAddress)
require.Equal(t, "cosmosvaloper1tnh2q55v8wyygtt9srz5safamzdengsn9dsd7z", stakingGenesis.Delegations[0].ValidatorAddress)
require.Equal(t, "1000.000000000000000000", stakingGenesis.Delegations[0].Shares.String())
// check validators
require.Equal(t, "cosmosvaloper1ghekyjucln7y67ntx7cf27m9dpuxxemnsvnaes", stakingGenesis.Validators[2].GetOperator().String())
require.Equal(t, []byte{0xa, 0x20, 0x51, 0xde, 0xbd, 0xe8, 0xfa, 0xdf, 0x4e, 0xfc, 0x33, 0xa5, 0x16, 0x94, 0xf6, 0xee, 0xd3, 0x69, 0x7a, 0x7a, 0x1c, 0x2d, 0x50, 0xb6, 0x2, 0xf7, 0x16, 0x4e, 0x66, 0x9f, 0xff, 0x38, 0x91, 0x9b}, stakingGenesis.Validators[2].ConsensusPubkey.Value)
require.Equal(t, false, stakingGenesis.Validators[2].Jailed)
require.Equal(t, "BOND_STATUS_UNBONDED", stakingGenesis.Validators[2].Status.String())
require.Equal(t, "1000", stakingGenesis.Validators[2].Tokens.String())
require.Equal(t, "1000.000000000000000000", stakingGenesis.Validators[2].DelegatorShares.String())
require.Equal(t, "0.292059246265731326", stakingGenesis.Validators[2].Commission.CommissionRates.Rate.String())
require.Equal(t, "0.330000000000000000", stakingGenesis.Validators[2].Commission.CommissionRates.MaxRate.String())
require.Equal(t, "0.038337453731274481", stakingGenesis.Validators[2].Commission.CommissionRates.MaxChangeRate.String())
require.Equal(t, "1", stakingGenesis.Validators[2].MinSelfDelegation.String())
}
// TestRandomizedGenState1 tests abnormal scenarios of applying RandomizedGenState.
func TestRandomizedGenState1(t *testing.T) {
interfaceRegistry := codectypes.NewInterfaceRegistry()
cdc := codec.NewProtoCodec(interfaceRegistry)
s := rand.NewSource(1)
r := rand.New(s)
// all these tests will panic
tests := []struct {
simState module.SimulationState
panicMsg string
}{
{ // panic => reason: incomplete initialization of the simState
module.SimulationState{}, "invalid memory address or nil pointer dereference"},
{ // panic => reason: incomplete initialization of the simState
module.SimulationState{
AppParams: make(simtypes.AppParams),
Cdc: cdc,
Rand: r,
}, "invalid memory address or nil pointer dereference"},
{
// panic => reason: numBonded != len(Accnounts)
module.SimulationState{
AppParams: make(simtypes.AppParams),
Cdc: cdc,
Rand: r,
NumBonded: 4,
Accounts: simtypes.RandomAccounts(r, 3),
InitialStake: 1000,
GenState: make(map[string]json.RawMessage),
}, "invalid memory address or nil pointer dereference"},
}
for _, tt := range tests {
require.Panicsf(t, func() { simulation.RandomizedGenState(&tt.simState) }, tt.panicMsg)
}
}