0g-chain/x/swap/keeper/invariants_test.go

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package keeper_test
import (
"testing"
"github.com/kava-labs/kava/x/swap/keeper"
"github.com/kava-labs/kava/x/swap/testutil"
"github.com/kava-labs/kava/x/swap/types"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/stretchr/testify/suite"
)
type invariantTestSuite struct {
testutil.Suite
invariants map[string]map[string]sdk.Invariant
}
func (suite *invariantTestSuite) SetupTest() {
suite.Suite.SetupTest()
suite.invariants = make(map[string]map[string]sdk.Invariant)
keeper.RegisterInvariants(suite, suite.Keeper)
}
func (suite *invariantTestSuite) SetupValidState() {
suite.Keeper.SetPool(suite.Ctx, types.NewPoolRecord(
sdk.NewCoins(
sdk.NewCoin("ukava", sdk.NewInt(1e6)),
sdk.NewCoin("usdx", sdk.NewInt(5e6)),
),
sdk.NewInt(3e6),
))
suite.AddCoinsToModule(
sdk.NewCoins(
sdk.NewCoin("ukava", sdk.NewInt(1e6)),
sdk.NewCoin("usdx", sdk.NewInt(5e6)),
),
)
suite.Keeper.SetDepositorShares(suite.Ctx, types.NewShareRecord(
sdk.AccAddress("depositor 1---------"), // TODO these addresses are padded to get to the required length of 20 bytes. What is a nicer setup?
types.PoolID("ukava", "usdx"),
sdk.NewInt(2e6),
))
suite.Keeper.SetDepositorShares(suite.Ctx, types.NewShareRecord(
sdk.AccAddress("depositor 2---------"),
types.PoolID("ukava", "usdx"),
sdk.NewInt(1e6),
))
suite.Keeper.SetPool(suite.Ctx, types.NewPoolRecord(
sdk.NewCoins(
sdk.NewCoin("hard", sdk.NewInt(1e6)),
sdk.NewCoin("usdx", sdk.NewInt(2e6)),
),
sdk.NewInt(1e6),
))
suite.AddCoinsToModule(
sdk.NewCoins(
sdk.NewCoin("hard", sdk.NewInt(1e6)),
sdk.NewCoin("usdx", sdk.NewInt(2e6)),
),
)
suite.Keeper.SetDepositorShares(suite.Ctx, types.NewShareRecord(
sdk.AccAddress("depositor 1---------"),
types.PoolID("hard", "usdx"),
sdk.NewInt(1e6),
))
}
func (suite *invariantTestSuite) RegisterRoute(moduleName string, route string, invariant sdk.Invariant) {
_, exists := suite.invariants[moduleName]
if !exists {
suite.invariants[moduleName] = make(map[string]sdk.Invariant)
}
suite.invariants[moduleName][route] = invariant
}
func (suite *invariantTestSuite) runInvariant(route string, invariant func(k keeper.Keeper) sdk.Invariant) (string, bool) {
ctx := suite.Ctx
registeredInvariant := suite.invariants[types.ModuleName][route]
suite.Require().NotNil(registeredInvariant)
// direct call
dMessage, dBroken := invariant(suite.Keeper)(ctx)
// registered call
rMessage, rBroken := registeredInvariant(ctx)
// all call
aMessage, aBroken := keeper.AllInvariants(suite.Keeper)(ctx)
// require matching values for direct call and registered call
suite.Require().Equal(dMessage, rMessage, "expected registered invariant message to match")
suite.Require().Equal(dBroken, rBroken, "expected registered invariant broken to match")
// require matching values for direct call and all invariants call if broken
suite.Require().Equal(dBroken, aBroken, "expected all invariant broken to match")
if dBroken {
suite.Require().Equal(dMessage, aMessage, "expected all invariant message to match")
}
// return message, broken
return dMessage, dBroken
}
func (suite *invariantTestSuite) TestPoolRecordsInvariant() {
// default state is valid
message, broken := suite.runInvariant("pool-records", keeper.PoolRecordsInvariant)
suite.Equal("swap: validate pool records broken invariant\npool record invalid\n", message)
suite.Equal(false, broken)
suite.SetupValidState()
message, broken = suite.runInvariant("pool-records", keeper.PoolRecordsInvariant)
suite.Equal("swap: validate pool records broken invariant\npool record invalid\n", message)
suite.Equal(false, broken)
// broken with invalid pool record
suite.Keeper.SetPool_Raw(suite.Ctx, types.NewPoolRecord(
sdk.NewCoins(
sdk.NewCoin("ukava", sdk.NewInt(1e6)),
sdk.NewCoin("usdx", sdk.NewInt(5e6)),
),
sdk.NewInt(-1e6),
))
message, broken = suite.runInvariant("pool-records", keeper.PoolRecordsInvariant)
suite.Equal("swap: validate pool records broken invariant\npool record invalid\n", message)
suite.Equal(true, broken)
}
func (suite *invariantTestSuite) TestShareRecordsInvariant() {
message, broken := suite.runInvariant("share-records", keeper.ShareRecordsInvariant)
suite.Equal("swap: validate share records broken invariant\nshare record invalid\n", message)
suite.Equal(false, broken)
suite.SetupValidState()
message, broken = suite.runInvariant("share-records", keeper.ShareRecordsInvariant)
suite.Equal("swap: validate share records broken invariant\nshare record invalid\n", message)
suite.Equal(false, broken)
// broken with invalid share record
suite.Keeper.SetDepositorShares_Raw(suite.Ctx, types.NewShareRecord(
sdk.AccAddress("depositor 1---------"),
types.PoolID("ukava", "usdx"),
sdk.NewInt(-1e6),
))
message, broken = suite.runInvariant("share-records", keeper.ShareRecordsInvariant)
suite.Equal("swap: validate share records broken invariant\nshare record invalid\n", message)
suite.Equal(true, broken)
}
func (suite *invariantTestSuite) TestPoolReservesInvariant() {
message, broken := suite.runInvariant("pool-reserves", keeper.PoolReservesInvariant)
suite.Equal("swap: pool reserves broken invariant\npool reserves do not match module account\n", message)
suite.Equal(false, broken)
suite.SetupValidState()
message, broken = suite.runInvariant("pool-reserves", keeper.PoolReservesInvariant)
suite.Equal("swap: pool reserves broken invariant\npool reserves do not match module account\n", message)
suite.Equal(false, broken)
// broken when reserves are greater than module balance
suite.Keeper.SetPool(suite.Ctx, types.NewPoolRecord(
sdk.NewCoins(
sdk.NewCoin("ukava", sdk.NewInt(2e6)),
sdk.NewCoin("usdx", sdk.NewInt(10e6)),
),
sdk.NewInt(5e6),
))
message, broken = suite.runInvariant("pool-reserves", keeper.PoolReservesInvariant)
suite.Equal("swap: pool reserves broken invariant\npool reserves do not match module account\n", message)
suite.Equal(true, broken)
// broken when reserves are less than the module balance
suite.Keeper.SetPool(suite.Ctx, types.NewPoolRecord(
sdk.NewCoins(
sdk.NewCoin("ukava", sdk.NewInt(1e5)),
sdk.NewCoin("usdx", sdk.NewInt(5e5)),
),
sdk.NewInt(3e5),
))
message, broken = suite.runInvariant("pool-reserves", keeper.PoolReservesInvariant)
suite.Equal("swap: pool reserves broken invariant\npool reserves do not match module account\n", message)
suite.Equal(true, broken)
}
func (suite *invariantTestSuite) TestPoolSharesInvariant() {
message, broken := suite.runInvariant("pool-shares", keeper.PoolSharesInvariant)
suite.Equal("swap: pool shares broken invariant\npool shares do not match depositor shares\n", message)
suite.Equal(false, broken)
suite.SetupValidState()
message, broken = suite.runInvariant("pool-shares", keeper.PoolSharesInvariant)
suite.Equal("swap: pool shares broken invariant\npool shares do not match depositor shares\n", message)
suite.Equal(false, broken)
// broken when total shares are greater than depositor shares
suite.Keeper.SetPool(suite.Ctx, types.NewPoolRecord(
sdk.NewCoins(
sdk.NewCoin("ukava", sdk.NewInt(1e6)),
sdk.NewCoin("usdx", sdk.NewInt(5e6)),
),
sdk.NewInt(5e6),
))
message, broken = suite.runInvariant("pool-shares", keeper.PoolSharesInvariant)
suite.Equal("swap: pool shares broken invariant\npool shares do not match depositor shares\n", message)
suite.Equal(true, broken)
// broken when total shares are less than the depositor shares
suite.Keeper.SetPool(suite.Ctx, types.NewPoolRecord(
sdk.NewCoins(
sdk.NewCoin("ukava", sdk.NewInt(1e6)),
sdk.NewCoin("usdx", sdk.NewInt(5e6)),
),
sdk.NewInt(1e5),
))
message, broken = suite.runInvariant("pool-shares", keeper.PoolSharesInvariant)
suite.Equal("swap: pool shares broken invariant\npool shares do not match depositor shares\n", message)
suite.Equal(true, broken)
// broken when pool record is missing
suite.Keeper.DeletePool(suite.Ctx, types.PoolID("ukava", "usdx"))
suite.RemoveCoinsFromModule(
sdk.NewCoins(
sdk.NewCoin("ukava", sdk.NewInt(1e6)),
sdk.NewCoin("usdx", sdk.NewInt(5e6)),
),
)
message, broken = suite.runInvariant("pool-shares", keeper.PoolSharesInvariant)
suite.Equal("swap: pool shares broken invariant\npool shares do not match depositor shares\n", message)
suite.Equal(true, broken)
}
func TestInvariantTestSuite(t *testing.T) {
suite.Run(t, new(invariantTestSuite))
}