Implement TestToken

contracts/token/TestToken.sol

@@ -0,0 +1,19 @@
+pragma solidity ^0.4.23;
+
+import "./StandardToken.sol";
+
+/**
+ * @notice ERC20Token for test scripts, can be minted by anyone.
+ */
+contract TestToken is StandardToken {
+    
+    constructor() public { }
+
+    /**
+     * @notice any caller can mint any `_amount` 
+     * @param _amount how much to be minted
+     */
+    function mint(uint256 _amount) public {
+        mint(msg.sender, _amount);
+    }
+}