0g-chain/x/kavamint/abci_test.go

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add x/kavamint & x/community modules (#1400) * add `x/kavamint` module (#1376) * stub out the x/kavamint module * mint staking rewards in x/kavamint BeginBlocker * calculate cumulative inflation from x/kavamint * cleanup, abstract bond denom, grpc query tests * store & use previous block time to calculate mints * move test suite to testutil * add test of x/kavamint BeginBlocker * cleanup & comments from @DracoLi review * fix x/incentive integration test * remove rest client grpc test * add x/kavamint module spec * track previous block time in genesis * suggested cleanup from PR review * bugfix incorrect module account check * add x/community module (#1388) * add x/community module * refactor and setup fund-community-pool tx * remove unused features (params, genesis state) * test x/community query and message * update with master branch deps * updates from review * indicate deprecated methods on module (still needed to fulfill interface) * remove legacy querier * derive msg Route() and Type() from sdk.MsgTypeURL(&msg) * use module name for message Route() * mint community pool inflation in x/kavamint (#1389) * mint community pool inflation in x/kavamint * refactor x/kavamint abci inflation test * test inflation from x/kavamint * default kavamint rates to 0% * rename kavamint account name variables * panic if genesis kavamint previous block time not set * emit event on kavamint begin blocker * add kavamint year of inflation sanity check test * update fund_community_pool message event * add x/community spec * refactor inflation accumulation into single func * use new comm pool in kavadist multispend proposal (#1403) the x/community module houses the new community pool. this commit points the CommunityPoolMultiSpendProposal at the new community pool so that multispend proposals can continue to be processed once original fee pool funds are move to x/community * updates from proto lint changes * update earn proposals to use new community pool originally the CommunityPoolDepositProposal & CommunityPoolWithdrawProposal used the vanilla community pool fee pool. this commit updates them both to use the new x/community module account. * spec formatting update * add x/community & x/kavamint to internal testnet genesis * increase test coverage of x/kavamint * increase test coverage of x/community * use string type for sdk.Dec proto fields; disable generation of getters for genesis and params (and other store objects) * follow sdk conventions for params endpoint naming * add kavamint to swagger; update swagger & proto docs * remove legacy querier; touch up module to match others * reduce max minting rate; refactor genesis to allow nil/zero block time; repace proto stringers and remove getters; keep sdk.Dec values strings in protos; increase validation of sdk.Dec values in params; increase coverage; add module account permission checks; ensure import and export of genesis does not change state * fix scaling of rate values -- should be yearly rates * revert key change * fix typo in test name * fix regression in running tests -- rename method Co-authored-by: Nick DeLuca <nickdeluca08@gmail.com>
2022-12-09 21:24:35 +00:00
package kavamint_test
import (
"testing"
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
"github.com/cosmos/cosmos-sdk/x/staking"
"github.com/stretchr/testify/suite"
communitytypes "github.com/kava-labs/kava/x/community/types"
"github.com/kava-labs/kava/x/kavamint"
"github.com/kava-labs/kava/x/kavamint/keeper"
"github.com/kava-labs/kava/x/kavamint/testutil"
"github.com/kava-labs/kava/x/kavamint/types"
)
type abciTestSuite struct {
testutil.KavamintTestSuite
}
func (suite *abciTestSuite) SetupTest() {
suite.KavamintTestSuite.SetupTest()
}
func (suite abciTestSuite) CheckModuleBalance(ctx sdk.Context, moduleName string, expectedAmount sdk.Int) {
denom := suite.StakingKeeper.BondDenom(ctx)
amount := suite.App.GetModuleAccountBalance(ctx, moduleName, denom)
suite.Require().Equal(expectedAmount, amount)
}
func (suite *abciTestSuite) CheckFeeCollectorBalance(ctx sdk.Context, expectedAmount sdk.Int) {
suite.CheckModuleBalance(ctx, authtypes.FeeCollectorName, expectedAmount)
}
func (suite *abciTestSuite) CheckKavamintBalance(ctx sdk.Context, expectedAmount sdk.Int) {
suite.CheckModuleBalance(ctx, types.ModuleName, expectedAmount)
}
func (suite *abciTestSuite) CheckCommunityPoolBalance(ctx sdk.Context, expectedAmount sdk.Int) {
suite.CheckModuleBalance(ctx, communitytypes.ModuleAccountName, expectedAmount)
}
func TestABCITestSuite(t *testing.T) {
suite.Run(t, new(abciTestSuite))
}
func (suite *abciTestSuite) Test_BeginBlocker_MintsExpectedTokens() {
testCases := []struct {
name string
blockTime uint64
communityPoolInflation sdk.Dec
stakingRewardsApy sdk.Dec
bondedRatio sdk.Dec
setup func()
expCommunityPoolBalance sdk.Int
expFeeCollectorBalance sdk.Int
}{
{
name: "sanity check: a year of seconds mints total yearly inflation",
blockTime: keeper.SecondsPerYear,
communityPoolInflation: sdk.NewDecWithPrec(20, 2),
stakingRewardsApy: sdk.NewDecWithPrec(20, 2),
bondedRatio: sdk.NewDecWithPrec(50, 2),
// 20% inflation on 1e10 tokens -> 2e9 minted
expCommunityPoolBalance: sdk.NewInt(2e9),
// 20% APY, 50% bonded (5e9) -> 1e9 minted
expFeeCollectorBalance: sdk.NewInt(1e9),
},
{
name: "mints staking rewards, handles 0 community pool inflation",
blockTime: 6,
communityPoolInflation: sdk.ZeroDec(),
stakingRewardsApy: sdk.NewDecWithPrec(20, 2),
bondedRatio: sdk.NewDecWithPrec(40, 2),
expCommunityPoolBalance: sdk.ZeroInt(),
// 20% APY for 6 seconds
// bond ratio is 40%, so total supply * ratio = 1e10 * .4
// https://www.wolframalpha.com/input?i2d=true&i=%5C%2840%29Power%5B%5C%2840%29Surd%5B1.20%2C31536000%5D%5C%2841%29%2C6%5D-1%5C%2841%29*1e10*.4
// => 138.75 => truncated to 138 tokens.
expFeeCollectorBalance: sdk.NewInt(138),
},
{
name: "mints community pool inflation, handles 0 staking rewards",
blockTime: 6,
communityPoolInflation: sdk.NewDecWithPrec(80, 2),
stakingRewardsApy: sdk.ZeroDec(),
bondedRatio: sdk.NewDecWithPrec(40, 2),
// 80% APY for 6 seconds
// total supply = 1e10
// https://www.wolframalpha.com/input?i2d=true&i=%5C%2840%29Power%5B%5C%2840%29Surd%5B1.80%2C31536000%5D%5C%2841%29%2C6%5D-1%5C%2841%29*1e10
// => 1118.32 => truncated to 1118 tokens.
expCommunityPoolBalance: sdk.NewInt(1118),
expFeeCollectorBalance: sdk.ZeroInt(),
},
{
name: "mints no tokens if all inflation is zero",
blockTime: 6,
communityPoolInflation: sdk.ZeroDec(),
stakingRewardsApy: sdk.ZeroDec(),
bondedRatio: sdk.NewDecWithPrec(40, 2),
expCommunityPoolBalance: sdk.ZeroInt(),
expFeeCollectorBalance: sdk.ZeroInt(),
},
{
name: "mints community pool inflation and staking rewards",
blockTime: 6,
communityPoolInflation: sdk.NewDecWithPrec(50, 2),
stakingRewardsApy: sdk.NewDecWithPrec(20, 2),
bondedRatio: sdk.NewDecWithPrec(35, 2),
// 50% APY for 6 seconds
// total supply = 1e10
// https://www.wolframalpha.com/input?i2d=true&i=%5C%2840%29Power%5B%5C%2840%29Surd%5B1.5%2C31536000%5D%5C%2841%29%2C6%5D-1%5C%2841%29*1e10
// => 771.43 => truncated to 771 tokens.
expCommunityPoolBalance: sdk.NewInt(771),
// 20% APY for 6 seconds
// total bonded = 1e10 * 35%
// https://www.wolframalpha.com/input?i2d=true&i=%5C%2840%29Power%5B%5C%2840%29Surd%5B1.20%2C31536000%5D%5C%2841%29%2C6%5D-1%5C%2841%29*1e10*.35
// => 121.41 => truncated to 121 tokens.
expFeeCollectorBalance: sdk.NewInt(121),
},
{
name: "handles extra long block time",
blockTime: 60, // like if we're upgrading the network & it takes an hour to get back up
communityPoolInflation: sdk.NewDecWithPrec(50, 2),
stakingRewardsApy: sdk.NewDecWithPrec(20, 2),
bondedRatio: sdk.NewDecWithPrec(35, 2),
// https://www.wolframalpha.com/input?i2d=true&i=%5C%2840%29Power%5B%5C%2840%29Surd%5B1.5%2C31536000%5D%5C%2841%29%2C60%5D-1%5C%2841%29*1e10
expCommunityPoolBalance: sdk.NewInt(7714),
// https://www.wolframalpha.com/input?i2d=true&i=%5C%2840%29Power%5B%5C%2840%29Surd%5B1.20%2C31536000%5D%5C%2841%29%2C60%5D-1%5C%2841%29*1e10*.35
expFeeCollectorBalance: sdk.NewInt(1214),
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.SetupTest()
// set store and params
suite.Keeper.SetPreviousBlockTime(suite.Ctx, suite.Ctx.BlockTime())
suite.Keeper.SetParams(
suite.Ctx,
types.NewParams(tc.communityPoolInflation, tc.stakingRewardsApy),
)
// set bonded token ratio
suite.SetBondedTokenRatio(tc.bondedRatio)
staking.EndBlocker(suite.Ctx, suite.StakingKeeper)
// run begin blocker
kavamint.BeginBlocker(suite.Ctx, suite.Keeper)
// expect everything empty to start
suite.CheckFeeCollectorBalance(suite.Ctx, sdk.ZeroInt())
suite.CheckKavamintBalance(suite.Ctx, sdk.ZeroInt())
suite.CheckCommunityPoolBalance(suite.Ctx, sdk.ZeroInt())
// expect initial block time set
startBlockTime := suite.Keeper.GetPreviousBlockTime(suite.Ctx)
suite.Require().False(startBlockTime.IsZero())
suite.Require().Equal(suite.Ctx.BlockTime(), startBlockTime)
// run begin blocker again to mint inflation
ctx2 := suite.Ctx.WithBlockTime(suite.Ctx.BlockTime().Add(time.Second * time.Duration(tc.blockTime)))
kavamint.BeginBlocker(ctx2, suite.Keeper)
// check expected balances
suite.CheckCommunityPoolBalance(ctx2, tc.expCommunityPoolBalance)
suite.CheckFeeCollectorBalance(ctx2, tc.expFeeCollectorBalance)
// x/kavamint balance should always be 0 because 100% should be transferred out every block
suite.CheckKavamintBalance(ctx2, sdk.ZeroInt())
// expect time to be updated
endBlockTime := suite.Keeper.GetPreviousBlockTime(ctx2)
suite.Require().False(endBlockTime.IsZero())
suite.Require().Equal(ctx2.BlockTime(), endBlockTime)
})
}
}
func (suite *abciTestSuite) Test_BeginBlocker_DefaultsToBlockTime() {
suite.SetupTest()
// unset previous block time
suite.Keeper.SetPreviousBlockTime(suite.Ctx, time.Time{})
// run begin blocker
kavamint.BeginBlocker(suite.Ctx, suite.Keeper)
// ensure block time gets set
blockTime := suite.Keeper.GetPreviousBlockTime(suite.Ctx)
suite.False(blockTime.IsZero())
suite.Equal(suite.Ctx.BlockTime(), blockTime)
}