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authorAmir Bandeali <abandeali1@gmail.com>2018-07-31 08:14:00 +0800
committerAmir Bandeali <abandeali1@gmail.com>2018-08-17 08:31:21 +0800
commit4dd59a370d77e6aee2a95fc2e3b04646dd4f1f02 (patch)
tree526ef2b26a55021fcaf635153a192320c891b797 /packages/contracts/src/2.0.0
parent7a6e6473866dae794b9876f900e5d6f5efd15911 (diff)
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Add tests for ERC20 token with no return values
Diffstat (limited to 'packages/contracts/src/2.0.0')
-rw-r--r--packages/contracts/src/2.0.0/test/DummyERC20Token/DummyNoReturnERC20Token.sol116
1 files changed, 116 insertions, 0 deletions
diff --git a/packages/contracts/src/2.0.0/test/DummyERC20Token/DummyNoReturnERC20Token.sol b/packages/contracts/src/2.0.0/test/DummyERC20Token/DummyNoReturnERC20Token.sol
new file mode 100644
index 000000000..79156d3dd
--- /dev/null
+++ b/packages/contracts/src/2.0.0/test/DummyERC20Token/DummyNoReturnERC20Token.sol
@@ -0,0 +1,116 @@
+/*
+
+ 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 "./DummyERC20Token.sol";
+
+
+// solhint-disable no-empty-blocks
+contract DummyNoReturnERC20Token is
+ DummyERC20Token
+{
+
+ constructor (
+ string _name,
+ string _symbol,
+ uint256 _decimals,
+ uint256 _totalSupply
+ )
+ public
+ DummyERC20Token(
+ _name,
+ _symbol,
+ _decimals,
+ _totalSupply
+ )
+ {}
+
+ /// @dev send `value` token to `to` from `msg.sender`
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ function transfer(address _to, uint256 _value)
+ external
+ returns (bool)
+ {
+ require(
+ balances[msg.sender] >= _value,
+ "ERC20_INSUFFICIENT_BALANCE"
+ );
+ require(
+ balances[_to] + _value >= balances[_to],
+ "UINT256_OVERFLOW"
+ );
+
+ balances[msg.sender] -= _value;
+ balances[_to] += _value;
+
+ emit Transfer(
+ msg.sender,
+ _to,
+ _value
+ );
+
+ // HACK: This contract will not compile if we remove `returns (bool)`, so we manually return no data
+ assembly {
+ return(0, 0)
+ }
+ }
+
+ /// @dev send `value` token to `to` from `from` on the condition it is approved by `from`
+ /// @param _from The address of the sender
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ function transferFrom(
+ address _from,
+ address _to,
+ uint256 _value
+ )
+ external
+ returns (bool)
+ {
+ require(
+ balances[_from] >= _value,
+ "ERC20_INSUFFICIENT_BALANCE"
+ );
+ require(
+ allowed[_from][msg.sender] >= _value,
+ "ERC20_INSUFFICIENT_ALLOWANCE"
+ );
+ require(
+ balances[_to] + _value >= balances[_to],
+ "UINT256_OVERFLOW"
+ );
+
+ balances[_to] += _value;
+ balances[_from] -= _value;
+ allowed[_from][msg.sender] -= _value;
+
+ emit Transfer(
+ _from,
+ _to,
+ _value
+ );
+
+ // HACK: This contract will not compile if we remove `returns (bool)`, so we manually return no data
+ assembly {
+ return(0, 0)
+ }
+ }
+}
+