test: improve fungible module coverage

changelog.md

@@ -56,6 +56,7 @@
 * [1961](https://github.com/zeta-chain/node/pull/1961) - improve observer module coverage
 * [1967](https://github.com/zeta-chain/node/pull/1967) - improve crosschain module coverage
 * [1955](https://github.com/zeta-chain/node/pull/1955) - improve emissions module coverage
+* [1985](https://github.com/zeta-chain/node/pull/1985) - improve fungible module coverage
 
 ### Fixes
 

x/fungible/keeper/deposits_test.go

@@ -6,6 +6,7 @@ import (
 
 	"cosmossdk.io/math"
 
+	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/stretchr/testify/require"
 	"github.com/zeta-chain/zetacore/pkg/chains"
 	"github.com/zeta-chain/zetacore/pkg/coin"
@@ -352,3 +353,17 @@ func TestKeeper_ZRC20DepositAndCallContract(t *testing.T) {
 		require.EqualValues(t, int64(0), balance.Int64())
 	})
 }
+
+func TestKeeper_DepositCoinZeta(t *testing.T) {
+	k, ctx, _, _ := testkeeper.FungibleKeeper(t)
+	to := sample.EthAddress()
+	amount := big.NewInt(1)
+	zetaToAddress := sdk.AccAddress(to.Bytes())
+
+	b := k.GetBankKeeper().GetBalance(ctx, zetaToAddress, "azeta")
+	require.Equal(t, int64(0), b.Amount.Int64())
+
+	k.DepositCoinZeta(ctx, to, amount)
+	b = k.GetBankKeeper().GetBalance(ctx, zetaToAddress, "azeta")
+	require.Equal(t, amount.Int64(), b.Amount.Int64())
+}

x/fungible/keeper/evm.go

@@ -54,7 +54,7 @@ func (k Keeper) DeployContract(ctx sdk.Context, metadata *bind.MetaData, ctorArg
 	}
 
 	if len(metadata.Bin) <= 2 {
-		return common.Address{}, cosmoserrors.Wrapf(types.ErrABIGet, "metadata Bin field too short: %s", err.Error())
+		return common.Address{}, cosmoserrors.Wrapf(types.ErrABIGet, "metadata Bin field too short")
 	}
 
 	bin, err := hex.DecodeString(metadata.Bin[2:])
@@ -98,10 +98,6 @@ func (k Keeper) DeployZRC20Contract(
 	if chain == nil {
 		return common.Address{}, cosmoserrors.Wrapf(zetaObserverTypes.ErrSupportedChains, "chain %d not found", chainID)
 	}
-	chainStr := chain.ChainName.String()
-	if chain == nil {
-		return common.Address{}, cosmoserrors.Wrapf(zetaObserverTypes.ErrSupportedChains, "chain %s not found", chainStr)
-	}
 	// Check if Contract has already been deployed for Asset
 	_, found := k.GetForeignCoinFromAsset(ctx, erc20Contract, chainID)
 	if found {
@@ -309,43 +305,6 @@ func (k Keeper) DepositZRC20AndCallContract(ctx sdk.Context,
 	)
 }
 
-// QueryWithdrawGasFee returns the gas fee for a withdrawal transaction associated with a given zrc20
-func (k Keeper) QueryWithdrawGasFee(ctx sdk.Context, contract common.Address) (*big.Int, error) {
-	zrc20ABI, err := zrc20.ZRC20MetaData.GetAbi()
-	if err != nil {
-		return nil, err
-	}
-	res, err := k.CallEVM(
-		ctx,
-		*zrc20ABI,
-		types.ModuleAddressEVM,
-		contract,
-		BigIntZero,
-		nil,
-		false,
-		false,
-		"withdrawGasFee",
-	)
-	if err != nil {
-		return nil, err
-	}
-
-	unpacked, err := zrc20ABI.Unpack("withdrawGasFee", res.Ret)
-	if err != nil {
-		return nil, err
-	}
-	if len(unpacked) < 2 {
-		return nil, fmt.Errorf("expect 2 returned values, got %d", len(unpacked))
-	}
-
-	GasFee, ok := unpacked[1].(*big.Int)
-	if !ok {
-		return nil, errors.New("can't read returned value as big.Int")
-	}
-
-	return GasFee, nil
-}
-
 // QueryProtocolFlatFee returns the protocol flat fee associated with a given zrc20
 func (k Keeper) QueryProtocolFlatFee(ctx sdk.Context, contract common.Address) (*big.Int, error) {
 	zrc20ABI, err := zrc20.ZRC20MetaData.GetAbi()

x/fungible/keeper/evm_hooks.go

@@ -22,12 +22,12 @@ func (k Keeper) EVMHooks() EVMHooks {
 
 // PostTxProcessing is a wrapper for calling the EVM PostTxProcessing hook on the module keeper
 func (h EVMHooks) PostTxProcessing(ctx sdk.Context, _ core.Message, receipt *ethtypes.Receipt) error {
-	return h.k.CheckPausedZRC20(ctx, receipt)
+	return h.k.checkPausedZRC20(ctx, receipt)
 }
 
-// CheckPausedZRC20 checks the events of the receipt
+// checkPausedZRC20 checks the events of the receipt
 // if an event is emitted from a paused ZRC20 contract it will revert the transaction
-func (k Keeper) CheckPausedZRC20(ctx sdk.Context, receipt *ethtypes.Receipt) error {
+func (k Keeper) checkPausedZRC20(ctx sdk.Context, receipt *ethtypes.Receipt) error {
 	if receipt == nil {
 		return nil
 	}

x/fungible/keeper/evm_hooks_test.go

@@ -123,7 +123,8 @@ func TestKeeper_CheckPausedZRC20(t *testing.T) {
 			assertPaused(addrPausedZRC20.Hex())
 
 			// process test
-			err := k.CheckPausedZRC20(ctx, tc.receipt)
+			h := k.EVMHooks()
+			err := h.PostTxProcessing(ctx, nil, tc.receipt)
 			if tc.wantErr {
 				require.ErrorIs(t, err, types.ErrPausedZRC20)
 			} else {