test: Don't assume 0 balance on live wrapper contracts

Author: CheyenneAtapour

src/BaseTokenWrapper.sol

@@ -103,6 +103,11 @@ abstract contract BaseTokenWrapper is Ownable, IBaseTokenWrapper {
     return _withdrawToken(amount, to, aTokenOut);
   }
 
+  /// @inheritdoc IBaseTokenWrapper
+  function borrowToken(uint256 amount, address to) external {
+    // Implement borrow logic here
+  }
+
   /// @inheritdoc IBaseTokenWrapper
   function rescueTokens(
     IERC20 token,

src/interfaces/IBaseTokenWrapper.sol

@@ -61,6 +61,13 @@ interface IBaseTokenWrapper {
     PermitSignature calldata signature
   ) external returns (uint256);
 
+  /**
+   * @notice Borrows the wrapped token from the Pool, unwraps it, sending to the recipient
+   * @param amount The amount of the token to borrow from the Pool and unwrap
+   * @param to The address that will receive the unwrapped token
+   */
+  function borrowToken(uint256 amount, address to) external;
+
   /**
    * @notice Provides way for the contract owner to rescue ERC-20 tokens
    * @param token The address of the token to withdraw from this contract

test/BaseTokenWrapper.t.sol

@@ -638,6 +638,7 @@ abstract contract BaseTokenWrapperTest is Test {
 
   function testRescueETH() public {
     uint256 ethAmount = 100 ether;
+    vm.deal(address(tokenWrapper), 0);
     assertEq(
       address(tokenWrapper).balance,
       0,