return testenv instead of simultaed backend

Author: bonedaddy

bclient/bclient.go

@@ -5,9 +5,9 @@ import (
 	"math/big"
 
 	"github.com/bonedaddy/go-defi/sushiswap"
+	"github.com/bonedaddy/go-defi/testenv"
 	"github.com/bonedaddy/go-defi/uniswap"
 	"github.com/bonedaddy/go-defi/utils"
-	"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
 	"github.com/ethereum/go-ethereum/ethclient"
 )
 
@@ -37,8 +37,8 @@ func NewClient(ctx context.Context, bc utils.Blockchain) (*BClient, error) {
 // SimulatedBackend attempts to conver the Blockchain interface to a simulated backend type
 // returning an error if unable to type convert the interface. This likely indicates
 // that an ethclient backend is being used
-func (bc *BClient) SimulatedBackend() (*backends.SimulatedBackend, error) {
-	sn, ok := bc.bc.(*backends.SimulatedBackend)
+func (bc *BClient) SimulatedBackend() (*testenv.Testenv, error) {
+	sn, ok := bc.bc.(*testenv.Testenv)
 	if !ok {
 		return nil, ErrNotSimulatedBackend
 	}