test(evm): evmante fees test coverage

app/evmante_fees.go

@@ -85,7 +85,9 @@ func (empd EthMinGasPriceDecorator) AnteHandle(
 		if fee.LT(requiredFee) {
 			return ctx, errors.Wrapf(
 				errortypes.ErrInsufficientFee,
-				"provided fee < minimum global fee (%s < %s). Please increase the priority tip (for EIP-1559 txs) or the gas prices (for access list or legacy txs)", //nolint:lll
+				"provided fee < minimum global fee (%s < %s). "+
+					"Please increase the priority tip (for EIP-1559 txs) or the gas prices "+
+					"(for access list or legacy txs)",
 				fee.TruncateInt().String(), requiredFee.TruncateInt().String(),
 			)
 		}

app/evmante_fees_test.go

@@ -0,0 +1,103 @@
+package app_test
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
+
+	"github.com/NibiruChain/nibiru/app"
+	"github.com/NibiruChain/nibiru/x/evm/evmtest"
+)
+
+func (s *TestSuite) TestEthMinGasPriceDecorator() {
+	testCases := []struct {
+		name     string
+		txSetup  func(deps *evmtest.TestDeps) sdk.Tx
+		ctxSetup func(deps *evmtest.TestDeps)
+		wantErr  string
+	}{
+		{
+			name: "happy: min gas price is 0",
+			txSetup: func(deps *evmtest.TestDeps) sdk.Tx {
+				tx := happyCreateContractTx(deps)
+				return tx
+			},
+			wantErr: "",
+		},
+		{
+			name: "happy: min gas price is not zero, sufficient fee",
+			ctxSetup: func(deps *evmtest.TestDeps) {
+				gasPrice := sdk.NewInt64Coin("unibi", 1)
+				deps.Ctx = deps.Ctx.
+					WithMinGasPrices(
+						sdk.NewDecCoins(sdk.NewDecCoinFromCoin(gasPrice)),
+					).
+					WithIsCheckTx(true)
+			},
+			txSetup: func(deps *evmtest.TestDeps) sdk.Tx {
+				tx := happyCreateContractTx(deps)
+				return tx
+			},
+			wantErr: "",
+		},
+		{
+			name: "sad: insufficient fee",
+			ctxSetup: func(deps *evmtest.TestDeps) {
+				gasPrice := sdk.NewInt64Coin("unibi", 2)
+				deps.Ctx = deps.Ctx.
+					WithMinGasPrices(
+						sdk.NewDecCoins(sdk.NewDecCoinFromCoin(gasPrice)),
+					).
+					WithIsCheckTx(true)
+			},
+			txSetup: func(deps *evmtest.TestDeps) sdk.Tx {
+				tx := happyCreateContractTx(deps)
+				return tx
+			},
+			wantErr: "insufficient fee",
+		},
+		{
+			name: "sad: tx with non evm message",
+			ctxSetup: func(deps *evmtest.TestDeps) {
+				gasPrice := sdk.NewInt64Coin("unibi", 1)
+				deps.Ctx = deps.Ctx.
+					WithMinGasPrices(
+						sdk.NewDecCoins(sdk.NewDecCoinFromCoin(gasPrice)),
+					).
+					WithIsCheckTx(true)
+			},
+			txSetup: func(deps *evmtest.TestDeps) sdk.Tx {
+				gasLimit := uint64(10)
+				fees := sdk.NewCoins(sdk.NewInt64Coin("unibi", int64(gasLimit)))
+				msg := &banktypes.MsgSend{
+					FromAddress: deps.Sender.NibiruAddr.String(),
+					ToAddress:   evmtest.NewEthAccInfo().NibiruAddr.String(),
+					Amount:      sdk.NewCoins(sdk.NewInt64Coin("unibi", 1)),
+				}
+				return buildTx(deps, true, msg, gasLimit, fees)
+			},
+			wantErr: "invalid message",
+		},
+	}
+
+	for _, tc := range testCases {
+		s.Run(tc.name, func() {
+			deps := evmtest.NewTestDeps()
+			anteDec := app.NewEthMinGasPriceDecorator(deps.Chain.AppKeepers)
+
+			tx := tc.txSetup(&deps)
+
+			if tc.ctxSetup != nil {
+				tc.ctxSetup(&deps)
+			}
+
+			_, err := anteDec.AnteHandle(
+				deps.Ctx, tx, false, NextNoOpAnteHandler,
+			)
+			if tc.wantErr != "" {
+				s.Require().ErrorContains(err, tc.wantErr)
+				return
+			}
+			s.Require().NoError(err)
+		})
+	}
+}