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diff --git a/contracts/erc20/contracts/test/DummyERC20Token.sol b/contracts/erc20/contracts/test/DummyERC20Token.sol
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+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "@0x/contracts-utils/contracts/src/Ownable.sol";
+import "../src/MintableERC20Token.sol";
+
+
+contract DummyERC20Token is
+ Ownable,
+ MintableERC20Token
+{
+ string public name;
+ string public symbol;
+ uint256 public decimals;
+ uint256 public constant MAX_MINT_AMOUNT = 10000000000000000000000;
+
+ constructor (
+ string _name,
+ string _symbol,
+ uint256 _decimals,
+ uint256 _totalSupply
+ )
+ public
+ {
+ name = _name;
+ symbol = _symbol;
+ decimals = _decimals;
+ _totalSupply = _totalSupply;
+ balances[msg.sender] = _totalSupply;
+ }
+
+ /// @dev Sets the balance of target address
+ /// @param _target Address or which balance will be updated
+ /// @param _value New balance of target address
+ function setBalance(address _target, uint256 _value)
+ external
+ onlyOwner
+ {
+ uint256 currBalance = balances[_target];
+ if (_value < currBalance) {
+ _totalSupply = safeSub(_totalSupply, safeSub(currBalance, _value));
+ } else {
+ _totalSupply = safeAdd(_totalSupply, safeSub(_value, currBalance));
+ }
+ balances[_target] = _value;
+ }
+
+ /// @dev Mints new tokens for sender
+ /// @param _value Amount of tokens to mint
+ function mint(uint256 _value)
+ external
+ {
+ require(
+ _value <= MAX_MINT_AMOUNT,
+ "VALUE_TOO_LARGE"
+ );
+
+ _mint(msg.sender, _value);
+ }
+}