cosmos-sdk/x/auth/middleware/gas_test.go

139 lines
4.7 KiB
Go

package middleware_test
import (
"context"
"errors"
abci "github.com/tendermint/tendermint/abci/types"
cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
"github.com/cosmos/cosmos-sdk/testutil/testdata"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/types/tx"
"github.com/cosmos/cosmos-sdk/x/auth/middleware"
"github.com/cosmos/cosmos-sdk/x/auth/signing"
)
// txTest is a dummy tx that doesn't implement GasTx. It should set the GasMeter
// to 0 in this case.
type txTest struct{}
var _ sdk.Tx = txTest{}
func (t txTest) GetMsgs() []sdk.Msg { return []sdk.Msg{} }
func (t txTest) ValidateBasic() error { return nil }
func (s *MWTestSuite) setupGasTx() (signing.Tx, []byte, sdk.Context, uint64) {
ctx := s.SetupTest(true)
txBuilder := s.clientCtx.TxConfig.NewTxBuilder()
// keys and addresses
priv1, _, addr1 := testdata.KeyTestPubAddr()
// msg and signatures
msg := testdata.NewTestMsg(addr1)
feeAmount := testdata.NewTestFeeAmount()
gasLimit := testdata.NewTestGasLimit()
s.Require().NoError(txBuilder.SetMsgs(msg))
txBuilder.SetFeeAmount(feeAmount)
txBuilder.SetGasLimit(gasLimit)
// test tx
privs, accNums, accSeqs := []cryptotypes.PrivKey{priv1}, []uint64{0}, []uint64{0}
tx, txBytes, err := s.createTestTx(txBuilder, privs, accNums, accSeqs, ctx.ChainID())
s.Require().NoError(err)
// Set height to non-zero value for GasMeter to be set
ctx = ctx.WithBlockHeight(1)
return tx, txBytes, ctx, gasLimit
}
func (s *MWTestSuite) TestSetup() {
tx, _, ctx, gasLimit := s.setupGasTx()
txHandler := middleware.ComposeMiddlewares(noopTxHandler{}, middleware.GasTxMiddleware)
testcases := []struct {
name string
tx sdk.Tx
expGasLimit uint64
expErr bool
errorStr string
}{
{"not a gas tx", txTest{}, 0, true, "Tx must be GasTx: tx parse error"},
{"tx with its own gas limit", tx, gasLimit, false, ""},
}
for _, tc := range testcases {
s.Run(tc.name, func() {
res, err := txHandler.CheckTx(sdk.WrapSDKContext(ctx), tc.tx, abci.RequestCheckTx{})
if tc.expErr {
s.Require().EqualError(err, tc.errorStr)
} else {
s.Require().Nil(err, "SetUpContextMiddleware returned error")
s.Require().Equal(tc.expGasLimit, uint64(res.GasWanted))
}
})
}
}
func (s *MWTestSuite) TestRecoverPanic() {
tx, txBytes, ctx, gasLimit := s.setupGasTx()
txHandler := middleware.ComposeMiddlewares(outOfGasTxHandler{}, middleware.GasTxMiddleware, middleware.RecoveryTxMiddleware)
res, err := txHandler.CheckTx(sdk.WrapSDKContext(ctx), tx, abci.RequestCheckTx{Tx: txBytes})
s.Require().Error(err, "Did not return error on OutOfGas panic")
s.Require().True(errors.Is(sdkerrors.ErrOutOfGas, err), "Returned error is not an out of gas error")
s.Require().Equal(gasLimit, uint64(res.GasWanted))
txHandler = middleware.ComposeMiddlewares(outOfGasTxHandler{}, middleware.GasTxMiddleware)
s.Require().Panics(func() { txHandler.CheckTx(sdk.WrapSDKContext(ctx), tx, abci.RequestCheckTx{Tx: txBytes}) }, "Recovered from non-Out-of-Gas panic")
}
// outOfGasTxHandler is a test middleware that will throw OutOfGas panic.
type outOfGasTxHandler struct{}
var _ tx.Handler = outOfGasTxHandler{}
func (txh outOfGasTxHandler) DeliverTx(ctx context.Context, _ sdk.Tx, _ abci.RequestDeliverTx) (abci.ResponseDeliverTx, error) {
sdkCtx := sdk.UnwrapSDKContext(ctx)
overLimit := sdkCtx.GasMeter().Limit() + 1
// Should panic with outofgas error
sdkCtx.GasMeter().ConsumeGas(overLimit, "test panic")
panic("not reached")
}
func (txh outOfGasTxHandler) CheckTx(ctx context.Context, _ sdk.Tx, _ abci.RequestCheckTx) (abci.ResponseCheckTx, error) {
sdkCtx := sdk.UnwrapSDKContext(ctx)
overLimit := sdkCtx.GasMeter().Limit() + 1
// Should panic with outofgas error
sdkCtx.GasMeter().ConsumeGas(overLimit, "test panic")
panic("not reached")
}
func (txh outOfGasTxHandler) SimulateTx(ctx context.Context, _ sdk.Tx, _ tx.RequestSimulateTx) (tx.ResponseSimulateTx, error) {
sdkCtx := sdk.UnwrapSDKContext(ctx)
overLimit := sdkCtx.GasMeter().Limit() + 1
// Should panic with outofgas error
sdkCtx.GasMeter().ConsumeGas(overLimit, "test panic")
panic("not reached")
}
// noopTxHandler is a test middleware that does nothing.
type noopTxHandler struct{}
var _ tx.Handler = noopTxHandler{}
func (txh noopTxHandler) CheckTx(_ context.Context, _ sdk.Tx, _ abci.RequestCheckTx) (abci.ResponseCheckTx, error) {
return abci.ResponseCheckTx{}, nil
}
func (txh noopTxHandler) SimulateTx(_ context.Context, _ sdk.Tx, _ tx.RequestSimulateTx) (tx.ResponseSimulateTx, error) {
return tx.ResponseSimulateTx{}, nil
}
func (txh noopTxHandler) DeliverTx(ctx context.Context, _ sdk.Tx, _ abci.RequestDeliverTx) (abci.ResponseDeliverTx, error) {
return abci.ResponseDeliverTx{}, nil
}