Merge Karma into one contract

+ Update README contract addresses to reflect new upgradeable version on ropsten
+ Remove functions added to Karma that I was using to test the upgrade process
+ Add test for deploying Karma proxy successfully

README.md

@@ -4,8 +4,8 @@
 
 An upgradeable Ethereum ERC20 token minted by my cat, Karma.
 
-[Ropsten Token](https://ropsten.etherscan.io/token/0xdCDA9d33Eb6eEf5C748743Bb1e2B7FBFBc500904)
+[Ropsten Karma Token](https://ropsten.etherscan.io/token/0x438B6a24d3581c379F51Ae389bf37236ae94BEA8)
 
-[Ropsten Contract](https://ropsten.etherscan.io/address/0xdCDA9d33Eb6eEf5C748743Bb1e2B7FBFBc500904)
+[Ropsten TransparentUpgradeableProxy Contract](https://ropsten.etherscan.io/address/0x438B6a24d3581c379F51Ae389bf37236ae94BEA8#readProxyContract)
 
-[Current KarmaV3 Contract](https://ropsten.etherscan.io/address/0x9e3be3194de7a033f82e7ac121b1036dd817f4c7#code)
+[Karma Contract](https://ropsten.etherscan.io/address/0x957684dC3De2b93154b2561c7bC96875306E39A0#code)

contracts/karma-1-ERC20.sol

@@ -1,14 +1,485 @@
 // Copyright [2021] - [2021], [Shaun Reed] and [Karma] contributors
 // SPDX-License-Identifier: MIT
 
-pragma solidity >= 0.8.0;
-
 // ----------------------------------------------------------------------------
 // Import ERC Token Standard #20 Interface
 //   ETH EIP repo: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
 // ----------------------------------------------------------------------------
-import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
+pragma solidity ^0.8.0;
-import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
+
+/**
+ * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
+ * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
+ * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
+ * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
+ *
+ * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
+ * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
+ *
+ * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
+ * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
+ */
+abstract contract Initializable {
+
+    /**
+     * @dev Indicates that the contract has been initialized.
+     */
+    bool private _initialized;
+
+    /**
+     * @dev Indicates that the contract is in the process of being initialized.
+     */
+    bool private _initializing;
+
+    /**
+     * @dev Modifier to protect an initializer function from being invoked twice.
+     */
+    modifier initializer() {
+        require(_initializing || !_initialized, "Initializable: contract is already initialized");
+
+        bool isTopLevelCall = !_initializing;
+        if (isTopLevelCall) {
+            _initializing = true;
+            _initialized = true;
+        }
+
+        _;
+
+        if (isTopLevelCall) {
+            _initializing = false;
+        }
+    }
+}
+
+
+/**
+ * @dev Interface of the ERC20 standard as defined in the EIP.
+ */
+interface IERC20Upgradeable {
+    /**
+     * @dev Returns the amount of tokens in existence.
+     */
+    function totalSupply() external view returns (uint256);
+
+    /**
+     * @dev Returns the amount of tokens owned by `account`.
+     */
+    function balanceOf(address account) external view returns (uint256);
+
+    /**
+     * @dev Moves `amount` tokens from the caller's account to `recipient`.
+     *
+     * Returns a boolean value indicating whether the operation succeeded.
+     *
+     * Emits a {Transfer} event.
+     */
+    function transfer(address recipient, uint256 amount) external returns (bool);
+
+    /**
+     * @dev Returns the remaining number of tokens that `spender` will be
+     * allowed to spend on behalf of `owner` through {transferFrom}. This is
+     * zero by default.
+     *
+     * This value changes when {approve} or {transferFrom} are called.
+     */
+    function allowance(address owner, address spender) external view returns (uint256);
+
+    /**
+     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
+     *
+     * Returns a boolean value indicating whether the operation succeeded.
+     *
+     * IMPORTANT: Beware that changing an allowance with this method brings the risk
+     * that someone may use both the old and the new allowance by unfortunate
+     * transaction ordering. One possible solution to mitigate this race
+     * condition is to first reduce the spender's allowance to 0 and set the
+     * desired value afterwards:
+     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
+     *
+     * Emits an {Approval} event.
+     */
+    function approve(address spender, uint256 amount) external returns (bool);
+
+    /**
+     * @dev Moves `amount` tokens from `sender` to `recipient` using the
+     * allowance mechanism. `amount` is then deducted from the caller's
+     * allowance.
+     *
+     * Returns a boolean value indicating whether the operation succeeded.
+     *
+     * Emits a {Transfer} event.
+     */
+    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
+
+    /**
+     * @dev Emitted when `value` tokens are moved from one account (`from`) to
+     * another (`to`).
+     *
+     * Note that `value` may be zero.
+     */
+    event Transfer(address indexed from, address indexed to, uint256 value);
+
+    /**
+     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
+     * a call to {approve}. `value` is the new allowance.
+     */
+    event Approval(address indexed owner, address indexed spender, uint256 value);
+}
+
+/**
+ * @dev Interface for the optional metadata functions from the ERC20 standard.
+ *
+ * _Available since v4.1._
+ */
+interface IERC20MetadataUpgradeable is IERC20Upgradeable {
+    /**
+     * @dev Returns the name of the token.
+     */
+    function name() external view returns (string memory);
+
+    /**
+     * @dev Returns the symbol of the token.
+     */
+    function symbol() external view returns (string memory);
+
+    /**
+     * @dev Returns the decimals places of the token.
+     */
+    function decimals() external view returns (uint8);
+}
+
+pragma solidity ^0.8.0;
+/*
+ * @dev Provides information about the current execution context, including the
+ * sender of the transaction and its data. While these are generally available
+ * via msg.sender and msg.data, they should not be accessed in such a direct
+ * manner, since when dealing with meta-transactions the account sending and
+ * paying for execution may not be the actual sender (as far as an application
+ * is concerned).
+ *
+ * This contract is only required for intermediate, library-like contracts.
+ */
+abstract contract ContextUpgradeable is Initializable {
+    function __Context_init() internal initializer {
+        __Context_init_unchained();
+    }
+
+    function __Context_init_unchained() internal initializer {
+    }
+    function _msgSender() internal view virtual returns (address) {
+        return msg.sender;
+    }
+
+    function _msgData() internal view virtual returns (bytes calldata) {
+        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
+        return msg.data;
+    }
+    uint256[50] private __gap;
+}
+
+pragma solidity ^0.8.0;
+/**
+ * @dev Implementation of the {IERC20} interface.
+ *
+ * This implementation is agnostic to the way tokens are created. This means
+ * that a supply mechanism has to be added in a derived contract using {_mint}.
+ * For a generic mechanism see {ERC20PresetMinterPauser}.
+ *
+ * TIP: For a detailed writeup see our guide
+ * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
+ * to implement supply mechanisms].
+ *
+ * We have followed general OpenZeppelin guidelines: functions revert instead
+ * of returning `false` on failure. This behavior is nonetheless conventional
+ * and does not conflict with the expectations of ERC20 applications.
+ *
+ * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
+ * This allows applications to reconstruct the allowance for all accounts just
+ * by listening to said events. Other implementations of the EIP may not emit
+ * these events, as it isn't required by the specification.
+ *
+ * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
+ * functions have been added to mitigate the well-known issues around setting
+ * allowances. See {IERC20-approve}.
+ */
+contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable {
+    mapping (address => uint256) private _balances;
+
+    mapping (address => mapping (address => uint256)) private _allowances;
+
+    uint256 private _totalSupply;
+
+    string private _name;
+    string private _symbol;
+
+    /**
+     * @dev Sets the values for {name} and {symbol}.
+     *
+     * The defaut value of {decimals} is 18. To select a different value for
+     * {decimals} you should overload it.
+     *
+     * All two of these values are immutable: they can only be set once during
+     * construction.
+     */
+    function __ERC20_init(string memory name_, string memory symbol_) internal initializer {
+        __Context_init_unchained();
+        __ERC20_init_unchained(name_, symbol_);
+    }
+
+    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal initializer {
+        _name = name_;
+        _symbol = symbol_;
+    }
+
+    /**
+     * @dev Returns the name of the token.
+     */
+    function name() public view virtual override returns (string memory) {
+        return _name;
+    }
+
+    /**
+     * @dev Returns the symbol of the token, usually a shorter version of the
+     * name.
+     */
+    function symbol() public view virtual override returns (string memory) {
+        return _symbol;
+    }
+
+    /**
+     * @dev Returns the number of decimals used to get its user representation.
+     * For example, if `decimals` equals `2`, a balance of `505` tokens should
+     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
+     *
+     * Tokens usually opt for a value of 18, imitating the relationship between
+     * Ether and Wei. This is the value {ERC20} uses, unless this function is
+     * overridden;
+     *
+     * NOTE: This information is only used for _display_ purposes: it in
+     * no way affects any of the arithmetic of the contract, including
+     * {IERC20-balanceOf} and {IERC20-transfer}.
+     */
+    function decimals() public view virtual override returns (uint8) {
+        return 18;
+    }
+
+    /**
+     * @dev See {IERC20-totalSupply}.
+     */
+    function totalSupply() public view virtual override returns (uint256) {
+        return _totalSupply;
+    }
+
+    /**
+     * @dev See {IERC20-balanceOf}.
+     */
+    function balanceOf(address account) public view virtual override returns (uint256) {
+        return _balances[account];
+    }
+
+    /**
+     * @dev See {IERC20-transfer}.
+     *
+     * Requirements:
+     *
+     * - `recipient` cannot be the zero address.
+     * - the caller must have a balance of at least `amount`.
+     */
+    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
+        _transfer(_msgSender(), recipient, amount);
+        return true;
+    }
+
+    /**
+     * @dev See {IERC20-allowance}.
+     */
+    function allowance(address owner, address spender) public view virtual override returns (uint256) {
+        return _allowances[owner][spender];
+    }
+
+    /**
+     * @dev See {IERC20-approve}.
+     *
+     * Requirements:
+     *
+     * - `spender` cannot be the zero address.
+     */
+    function approve(address spender, uint256 amount) public virtual override returns (bool) {
+        _approve(_msgSender(), spender, amount);
+        return true;
+    }
+
+    /**
+     * @dev See {IERC20-transferFrom}.
+     *
+     * Emits an {Approval} event indicating the updated allowance. This is not
+     * required by the EIP. See the note at the beginning of {ERC20}.
+     *
+     * Requirements:
+     *
+     * - `sender` and `recipient` cannot be the zero address.
+     * - `sender` must have a balance of at least `amount`.
+     * - the caller must have allowance for ``sender``'s tokens of at least
+     * `amount`.
+     */
+    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
+        _transfer(sender, recipient, amount);
+
+        uint256 currentAllowance = _allowances[sender][_msgSender()];
+        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
+        _approve(sender, _msgSender(), currentAllowance - amount);
+
+        return true;
+    }
+
+    /**
+     * @dev Atomically increases the allowance granted to `spender` by the caller.
+     *
+     * This is an alternative to {approve} that can be used as a mitigation for
+     * problems described in {IERC20-approve}.
+     *
+     * Emits an {Approval} event indicating the updated allowance.
+     *
+     * Requirements:
+     *
+     * - `spender` cannot be the zero address.
+     */
+    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
+        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
+        return true;
+    }
+
+    /**
+     * @dev Atomically decreases the allowance granted to `spender` by the caller.
+     *
+     * This is an alternative to {approve} that can be used as a mitigation for
+     * problems described in {IERC20-approve}.
+     *
+     * Emits an {Approval} event indicating the updated allowance.
+     *
+     * Requirements:
+     *
+     * - `spender` cannot be the zero address.
+     * - `spender` must have allowance for the caller of at least
+     * `subtractedValue`.
+     */
+    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
+        uint256 currentAllowance = _allowances[_msgSender()][spender];
+        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
+        _approve(_msgSender(), spender, currentAllowance - subtractedValue);
+
+        return true;
+    }
+
+    /**
+     * @dev Moves tokens `amount` from `sender` to `recipient`.
+     *
+     * This is internal function is equivalent to {transfer}, and can be used to
+     * e.g. implement automatic token fees, slashing mechanisms, etc.
+     *
+     * Emits a {Transfer} event.
+     *
+     * Requirements:
+     *
+     * - `sender` cannot be the zero address.
+     * - `recipient` cannot be the zero address.
+     * - `sender` must have a balance of at least `amount`.
+     */
+    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
+        require(sender != address(0), "ERC20: transfer from the zero address");
+        require(recipient != address(0), "ERC20: transfer to the zero address");
+
+        _beforeTokenTransfer(sender, recipient, amount);
+
+        uint256 senderBalance = _balances[sender];
+        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
+        _balances[sender] = senderBalance - amount;
+        _balances[recipient] += amount;
+
+        emit Transfer(sender, recipient, amount);
+    }
+
+    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
+     * the total supply.
+     *
+     * Emits a {Transfer} event with `from` set to the zero address.
+     *
+     * Requirements:
+     *
+     * - `to` cannot be the zero address.
+     */
+    function _mint(address account, uint256 amount) internal virtual {
+        require(account != address(0), "ERC20: mint to the zero address");
+
+        _beforeTokenTransfer(address(0), account, amount);
+
+        _totalSupply += amount;
+        _balances[account] += amount;
+        emit Transfer(address(0), account, amount);
+    }
+
+    /**
+     * @dev Destroys `amount` tokens from `account`, reducing the
+     * total supply.
+     *
+     * Emits a {Transfer} event with `to` set to the zero address.
+     *
+     * Requirements:
+     *
+     * - `account` cannot be the zero address.
+     * - `account` must have at least `amount` tokens.
+     */
+    function _burn(address account, uint256 amount) internal virtual {
+        require(account != address(0), "ERC20: burn from the zero address");
+
+        _beforeTokenTransfer(account, address(0), amount);
+
+        uint256 accountBalance = _balances[account];
+        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
+        _balances[account] = accountBalance - amount;
+        _totalSupply -= amount;
+
+        emit Transfer(account, address(0), amount);
+    }
+
+    /**
+     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
+     *
+     * This internal function is equivalent to `approve`, and can be used to
+     * e.g. set automatic allowances for certain subsystems, etc.
+     *
+     * Emits an {Approval} event.
+     *
+     * Requirements:
+     *
+     * - `owner` cannot be the zero address.
+     * - `spender` cannot be the zero address.
+     */
+    function _approve(address owner, address spender, uint256 amount) internal virtual {
+        require(owner != address(0), "ERC20: approve from the zero address");
+        require(spender != address(0), "ERC20: approve to the zero address");
+
+        _allowances[owner][spender] = amount;
+        emit Approval(owner, spender, amount);
+    }
+
+    /**
+     * @dev Hook that is called before any transfer of tokens. This includes
+     * minting and burning.
+     *
+     * Calling conditions:
+     *
+     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
+     * will be to transferred to `to`.
+     * - when `from` is zero, `amount` tokens will be minted for `to`.
+     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
+     * - `from` and `to` are never both zero.
+     *
+     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
+     */
+    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
+    uint256[45] private __gap;
+}
 
 // ----------------------------------------------------------------------------
 // Karma Contract

contracts/karma-2-ERC20.sol

@@ -1,28 +0,0 @@
-// Copyright [2021] - [2021], [Shaun Reed] and [Karma] contributors
-// SPDX-License-Identifier: MIT
-
-pragma solidity >= 0.8.0;
-
-// ----------------------------------------------------------------------------
-// Import ERC Token Standard #20 Interface
-//   ETH EIP repo: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
-// ----------------------------------------------------------------------------
-import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
-import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
-
-// ----------------------------------------------------------------------------
-// Karma Contract
-// ----------------------------------------------------------------------------
-
-contract KarmaV2 is Initializable, ERC20Upgradeable
-{
-    function initialize(string memory name, string memory symbol, uint256 initialSupply) public virtual initializer {
-        __ERC20_init(name, symbol);
-        _mint(_msgSender(), initialSupply);
-    }
-
-    function isToken() public returns (bool)
-    {
-        return true;
-    }
-}

contracts/karma-3-ERC20.sol

@@ -1,34 +0,0 @@
-// Copyright [2021] - [2021], [Shaun Reed] and [Karma] contributors
-// SPDX-License-Identifier: MIT
-
-pragma solidity >= 0.8.0;
-
-// ----------------------------------------------------------------------------
-// Import ERC Token Standard #20 Interface
-//   ETH EIP repo: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
-// ----------------------------------------------------------------------------
-import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
-import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
-
-// ----------------------------------------------------------------------------
-// Karma Contract
-// ----------------------------------------------------------------------------
-
-contract KarmaV3 is Initializable, ERC20Upgradeable
-{
-    function initialize(string memory name, string memory symbol, uint256 initialSupply) public virtual initializer {
-        __ERC20_init(name, symbol);
-        _mint(_msgSender(), initialSupply);
-    }
-
-    function isToken() public pure returns (bool)
-    {
-        return true;
-    }
-
-    function getAddress() public view returns (address)
-    {
-        return address(this);
-    }
-
-}

migrations/4_upgrade_karma.js

@@ -1,9 +0,0 @@
-const { upgradeProxy } = require('@openzeppelin/truffle-upgrades');
-
-const Karma = artifacts.require('Karma');
-const KarmaV2 = artifacts.require('KarmaV2');
-
-module.exports = async function (deployer) {
-    const existing = await Karma.deployed();
-    await upgradeProxy(existing.address, KarmaV2, { deployer });
-};

migrations/5_upgrade_karma.js

@@ -1,9 +0,0 @@
-const { upgradeProxy } = require('@openzeppelin/truffle-upgrades');
-
-const KarmaV2 = artifacts.require('KarmaV2');
-const KarmaV3 = artifacts.require('KarmaV3');
-
-module.exports = async function (deployer) {
-    const existing = await KarmaV2.deployed();
-    await upgradeProxy(existing.address, KarmaV3, { deployer });
-};

package-lock.json

@@ -5,7 +5,6 @@
   "requires": true,
   "packages": {
     "": {
-      "name": "karma",
       "version": "1.0.0",
       "license": "MIT",
       "devDependencies": {
@@ -7905,6 +7904,7 @@
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       "dev": true,
+      "hasInstallScript": true,
       "dependencies": {
         "node-gyp-build": "^4.2.0"
       }
@@ -14144,6 +14144,7 @@
       "resolved": "https://registry.npmjs.org/keccak/-/keccak-3.0.1.tgz",
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       "dev": true,
+      "hasInstallScript": true,
       "dependencies": {
         "node-addon-api": "^2.0.0",
         "node-gyp-build": "^4.2.0"
@@ -14478,6 +14479,7 @@
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       "dev": true,
+      "hasInstallScript": true,
       "optional": true,
       "dependencies": {
         "abstract-leveldown": "~6.0.0",
@@ -20147,6 +20149,7 @@
       "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-4.0.2.tgz",
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       "dev": true,
+      "hasInstallScript": true,
       "dependencies": {
         "elliptic": "^6.5.2",
         "node-addon-api": "^2.0.0",
@@ -20891,6 +20894,7 @@
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       "dev": true,
+      "hasInstallScript": true,
       "optional": true,
       "dependencies": {
         "nan": "^2.12.1",
@@ -21552,6 +21556,7 @@
       "resolved": "https://registry.npmjs.org/tiny-secp256k1/-/tiny-secp256k1-1.1.6.tgz",
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       "dev": true,
+      "hasInstallScript": true,
       "optional": true,
       "dependencies": {
         "bindings": "^1.3.0",
@@ -22432,6 +22437,7 @@
       "resolved": "https://registry.npmjs.org/ursa-optional/-/ursa-optional-0.10.2.tgz",
       "integrity": "sha512-TKdwuLboBn7M34RcvVTuQyhvrA8gYKapuVdm0nBP0mnBc7oECOfUQZrY91cefL3/nm64ZyrejSRrhTVdX7NG/A==",
       "dev": true,
+      "hasInstallScript": true,
       "optional": true,
       "dependencies": {
         "bindings": "^1.5.0",
@@ -22446,6 +22452,7 @@
       "resolved": "https://registry.npmjs.org/utf-8-validate/-/utf-8-validate-5.0.4.tgz",
       "integrity": "sha512-MEF05cPSq3AwJ2C7B7sHAA6i53vONoZbMGX8My5auEVm6W+dJ2Jd/TZPyGJ5CH42V2XtbI5FD28HeHeqlPzZ3Q==",
       "dev": true,
+      "hasInstallScript": true,
       "dependencies": {
         "node-gyp-build": "^4.2.0"
       }

test/Karma.proxy.test.js

@@ -0,0 +1,15 @@
+// Load dependencies
+const { expect } = require('chai');
+const { deployProxy, upgradeProxy} = require('@openzeppelin/truffle-upgrades');
+
+// Load compiled artifacts
+const Karma = artifacts.require('Karma');
+
+// Start test block
+contract('Karma (proxy)', function () {
+    // Test case
+    it('Karma deploys successfully', async function () {
+        // Increment
+        const karma = await Karma.new();
+    });
+});

truffle-config.js

@@ -99,10 +99,10 @@ module.exports = {
       version: "0.8.0",    // Fetch exact version from solc-bin (default: truffle's version)
       // docker: true,        // Use "0.5.1" you've installed locally with docker (default: false)
       // settings: {          // See the solidity docs for advice about optimization and evmVersion
-      //  optimizer: {
+       optimizer: {
-      //    enabled: false,
+         enabled: true,
-      //    runs: 200
+         runs: 200
-      //  },
+       },
       //  evmVersion: "byzantium"
       // }
     }