diff --git a/src/test/tokenerc20-BTT/other-functions/other.t.sol b/src/test/tokenerc20-BTT/other-functions/other.t.sol
new file mode 100644
index 000000000..4b0049e06
--- /dev/null
+++ b/src/test/tokenerc20-BTT/other-functions/other.t.sol
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: Apache-2.0
+pragma solidity ^0.8.0;
+
+import "../../utils/BaseTest.sol";
+import { IStaking20 } from "contracts/extension/interface/IStaking20.sol";
+
+import "@openzeppelin/contracts-upgradeable/access/IAccessControlEnumerableUpgradeable.sol";
+import "@openzeppelin/contracts-upgradeable/access/IAccessControlUpgradeable.sol";
+import "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";
+import "@openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol";
+
+import { TWProxy } from "contracts/infra/TWProxy.sol";
+
+contract MyTokenERC20 is TokenERC20 {
+    function beforeTokenTransfer(
+        address from,
+        address to,
+        uint256 amount
+    ) external {
+        _beforeTokenTransfer(from, to, amount);
+    }
+
+    function mint(address account, uint256 amount) external {
+        _mint(account, amount);
+    }
+
+    function burn(address account, uint256 amount) external {
+        _burn(account, amount);
+    }
+}
+
+contract TokenERC20Test_OtherFunctions is BaseTest {
+    address public implementation;
+    address public proxy;
+
+    MyTokenERC20 public tokenContract;
+    address internal caller;
+
+    function setUp() public override {
+        super.setUp();
+
+        // Deploy implementation.
+        implementation = address(new MyTokenERC20());
+        caller = getActor(3);
+
+        // Deploy proxy pointing to implementaion.
+        vm.prank(deployer);
+        proxy = address(
+            new TWProxy(
+                implementation,
+                abi.encodeCall(
+                    TokenERC20.initialize,
+                    (
+                        deployer,
+                        NAME,
+                        SYMBOL,
+                        CONTRACT_URI,
+                        forwarders(),
+                        saleRecipient,
+                        platformFeeRecipient,
+                        platformFeeBps
+                    )
+                )
+            )
+        );
+
+        tokenContract = MyTokenERC20(proxy);
+    }
+
+    function test_contractType() public {
+        assertEq(tokenContract.contractType(), bytes32("TokenERC20"));
+    }
+
+    function test_contractVersion() public {
+        assertEq(tokenContract.contractVersion(), uint8(1));
+    }
+
+    function test_beforeTokenTransfer_restricted_notTransferRole() public {
+        vm.prank(deployer);
+        tokenContract.revokeRole(keccak256("TRANSFER_ROLE"), address(0));
+        vm.expectRevert("transfers restricted.");
+        tokenContract.beforeTokenTransfer(caller, address(0x123), 100);
+    }
+
+    modifier whenTransferRole() {
+        vm.prank(deployer);
+        tokenContract.grantRole(keccak256("TRANSFER_ROLE"), caller);
+        _;
+    }
+
+    function test_beforeTokenTransfer_restricted() public whenTransferRole {
+        tokenContract.beforeTokenTransfer(caller, address(0x123), 100);
+    }
+
+    function test_mint() public {
+        tokenContract.mint(caller, 100);
+        assertEq(tokenContract.balanceOf(caller), 100);
+    }
+
+    function test_burn() public {
+        tokenContract.mint(caller, 100);
+        assertEq(tokenContract.balanceOf(caller), 100);
+
+        tokenContract.burn(caller, 60);
+        assertEq(tokenContract.balanceOf(caller), 40);
+    }
+}
diff --git a/src/test/tokenerc20-BTT/other-functions/other.tree b/src/test/tokenerc20-BTT/other-functions/other.tree
new file mode 100644
index 000000000..57a1466a8
--- /dev/null
+++ b/src/test/tokenerc20-BTT/other-functions/other.tree
@@ -0,0 +1,20 @@
+contractType()
+├── it should return bytes32("TokenERC20") ✅
+
+contractVersion()
+├── it should return uint8(1) ✅
+
+_beforeTokenTransfers(
+    address from,
+    address to,
+    uint256 amount
+)
+├── when transfers are restricted (i.e. address(0) doesn't have transfer role, or from-to addresses are not address(0)
+    └── when from and to don't have transfer role
+    │   └── it should revert ✅
+
+_mint(address account, uint256 amount)
+├── it should mint amount to account ✅
+
+_burn(address account, uint256 amount)
+├── it should mint amount from account ✅