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	* Use cosmossdk.io/errors for deprecated error methods * Update error registration with cosmossdk.io/errors * Use cosmossdk.io/math for deprecated sdk.Int alias * Fix modified proto file * Update sdk.Int usage in swap hooks * Update e2e test deprecated method usage
		
			
				
	
	
		
			140 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			140 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package keeper_test
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import (
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	"math/big"
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	"testing"
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	sdkmath "cosmossdk.io/math"
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	sdk "github.com/cosmos/cosmos-sdk/types"
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	"github.com/stretchr/testify/suite"
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	"github.com/kava-labs/kava/x/evmutil/keeper"
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	"github.com/kava-labs/kava/x/evmutil/testutil"
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	"github.com/kava-labs/kava/x/evmutil/types"
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)
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type invariantTestSuite struct {
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	testutil.Suite
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	invariants   map[string]map[string]sdk.Invariant
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	contractAddr types.InternalEVMAddress
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}
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func TestInvariantTestSuite(t *testing.T) {
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	suite.Run(t, new(invariantTestSuite))
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}
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func (suite *invariantTestSuite) SetupTest() {
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	suite.Suite.SetupTest()
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	suite.contractAddr = suite.DeployERC20()
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	suite.invariants = make(map[string]map[string]sdk.Invariant)
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	keeper.RegisterInvariants(suite, suite.BankKeeper, suite.Keeper)
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}
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func (suite *invariantTestSuite) SetupValidState() {
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	for i := 0; i < 4; i++ {
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		suite.Keeper.SetAccount(suite.Ctx, *types.NewAccount(
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			suite.Addrs[i],
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			keeper.ConversionMultiplier.QuoRaw(2),
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		))
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	}
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	suite.FundModuleAccountWithKava(
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		types.ModuleName,
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		sdk.NewCoins(
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			sdk.NewCoin("ukava", sdkmath.NewInt(2)), // ( sum of all minor balances ) / conversion multiplier
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		),
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	)
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	err := suite.Keeper.MintERC20(suite.Ctx, suite.contractAddr, suite.Key1Addr, big.NewInt(1000000))
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	suite.Require().NoError(err)
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	// key1 ERC20 bal -10000, sdk.Coin +1000
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	// Module account balance 0 -> 1000
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	_, err = suite.Keeper.CallEVM(
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		suite.Ctx,
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		types.ERC20MintableBurnableContract.ABI,
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		suite.Key1Addr.Address,
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		suite.contractAddr,
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		"convertToCoin",
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		// convertToCoin ERC20 args
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		suite.Key1Addr.Address,
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		big.NewInt(1000),
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	)
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	suite.Require().NoError(err)
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}
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// RegisterRoutes implements sdk.InvariantRegistry
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func (suite *invariantTestSuite) RegisterRoute(moduleName string, route string, invariant sdk.Invariant) {
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	_, exists := suite.invariants[moduleName]
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	if !exists {
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		suite.invariants[moduleName] = make(map[string]sdk.Invariant)
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	}
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	suite.invariants[moduleName][route] = invariant
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}
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func (suite *invariantTestSuite) runInvariant(route string, invariant func(bankKeeper types.BankKeeper, k keeper.Keeper) sdk.Invariant) (string, bool) {
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	ctx := suite.Ctx
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	registeredInvariant := suite.invariants[types.ModuleName][route]
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	suite.Require().NotNil(registeredInvariant)
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	// direct call
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	dMessage, dBroken := invariant(suite.BankKeeper, suite.Keeper)(ctx)
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	// registered call
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	rMessage, rBroken := registeredInvariant(ctx)
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	// all call
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	aMessage, aBroken := keeper.AllInvariants(suite.BankKeeper, suite.Keeper)(ctx)
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	// require matching values for direct call and registered call
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	suite.Require().Equal(dMessage, rMessage, "expected registered invariant message to match")
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	suite.Require().Equal(dBroken, rBroken, "expected registered invariant broken to match")
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	// require matching values for direct call and all invariants call if broken
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	suite.Require().Equal(dBroken, aBroken, "expected all invariant broken to match")
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	if dBroken {
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		suite.Require().Equal(dMessage, aMessage, "expected all invariant message to match")
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	}
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	return dMessage, dBroken
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}
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func (suite *invariantTestSuite) TestFullyBackedInvariant() {
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	// default state is valid
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	_, broken := suite.runInvariant("fully-backed", keeper.FullyBackedInvariant)
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	suite.Equal(false, broken)
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	suite.SetupValidState()
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	_, broken = suite.runInvariant("fully-backed", keeper.FullyBackedInvariant)
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	suite.Equal(false, broken)
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	// break invariant by increasing total minor balances above module balance
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	suite.Keeper.AddBalance(suite.Ctx, suite.Addrs[0], sdk.OneInt())
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	message, broken := suite.runInvariant("fully-backed", keeper.FullyBackedInvariant)
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	suite.Equal("evmutil: fully backed broken invariant\nsum of minor balances greater than module account\n", message)
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	suite.Equal(true, broken)
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}
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func (suite *invariantTestSuite) TestSmallBalances() {
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	// default state is valid
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	_, broken := suite.runInvariant("small-balances", keeper.SmallBalancesInvariant)
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	suite.Equal(false, broken)
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	suite.SetupValidState()
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	_, broken = suite.runInvariant("small-balances", keeper.SmallBalancesInvariant)
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	suite.Equal(false, broken)
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	// increase minor balance at least above conversion multiplier
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	suite.Keeper.AddBalance(suite.Ctx, suite.Addrs[0], keeper.ConversionMultiplier)
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	// add same number of ukava to avoid breaking other invariants
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	amt := sdk.NewCoins(sdk.NewInt64Coin(keeper.CosmosDenom, 1))
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	suite.Require().NoError(
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		suite.App.FundModuleAccount(suite.Ctx, types.ModuleName, amt),
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	)
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	message, broken := suite.runInvariant("small-balances", keeper.SmallBalancesInvariant)
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	suite.Equal("evmutil: small balances broken invariant\nminor balances not all less than overflow\n", message)
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	suite.Equal(true, broken)
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}
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