Check alice, bridgePotEvm, evmSwapPrecompile balances at evmToNative e2e test

Author: dmitrylavrenov

utils/e2e-tests/ts/tests/swap/evmToNative.ts

@@ -7,6 +7,7 @@ import evmSwap from "../../lib/abis/evmSwap";
 import { decodeEventLog } from "viem";
 
 const evmSwapPrecompileAddress = "0x0000000000000000000000000000000000000901";
+const bridgePotEvmAddress = "0x6d6f646c686d63732f656e310000000000000000";
 
 describe("evm to native tokens swap", () => {
   let node: RunNodeState;
@@ -28,6 +29,13 @@ describe("evm to native tokens swap", () => {
     const targetNativeAccount =
       "0x7700000000000000000000000000000000000000000000000000000000000077";
 
+    const aliceBalanceBefore = await publicClient.getBalance({
+      address: alice.account.address,
+    });
+    const bridgePotEvmAddressBalanceBefore = await publicClient.getBalance({
+      address: bridgePotEvmAddress,
+    });
+
     const swapTxHash = await alice.writeContract({
       abi: evmSwap.abi,
       address: evmSwapPrecompileAddress,
@@ -59,5 +67,22 @@ describe("evm to native tokens swap", () => {
         value: swapBalance,
       },
     });
+
+    const fee = swapTxReceipt.cumulativeGasUsed * swapTxReceipt.effectiveGasPrice;
+
+    const aliceBalanceAfter = await publicClient.getBalance({
+      address: alice.account.address,
+    });
+    expect(aliceBalanceAfter).toEqual(aliceBalanceBefore - swapBalance - fee);
+
+    const bridgePotEvmAddressBalanceAfter = await publicClient.getBalance({
+      address: bridgePotEvmAddress,
+    });
+    expect(bridgePotEvmAddressBalanceAfter).toEqual(bridgePotEvmAddressBalanceBefore + swapBalance + fee);
+
+    const evmSwapPrecompileBalance = await publicClient.getBalance({
+      address: evmSwapPrecompileAddress,
+    });
+    expect(evmSwapPrecompileBalance).toEqual(0n);
   });
 });