From a9e1fcd623b0ed7a3a8a186ed66a1469e1d405af Mon Sep 17 00:00:00 2001 From: Jakub Wojciechowski Date: Sat, 29 Jul 2017 09:00:54 +0100 Subject: [PATCH] Add complex crowdsale example #331 requested changes --- contracts/examples/SampleCrowdsale.sol | 48 +++++++++++++++++++ .../examples/crowdsale/SampleCrowdsale.sol | 27 ----------- .../crowdsale/SampleCrowdsaleToken.sol | 18 ------- test/SampleCrowdsale.js | 2 +- 4 files changed, 49 insertions(+), 46 deletions(-) create mode 100644 contracts/examples/SampleCrowdsale.sol delete mode 100644 contracts/examples/crowdsale/SampleCrowdsale.sol delete mode 100644 contracts/examples/crowdsale/SampleCrowdsaleToken.sol diff --git a/contracts/examples/SampleCrowdsale.sol b/contracts/examples/SampleCrowdsale.sol new file mode 100644 index 000000000..2fc95c610 --- /dev/null +++ b/contracts/examples/SampleCrowdsale.sol @@ -0,0 +1,48 @@ +pragma solidity ^0.4.11; + +import "../crowdsale/CappedCrowdsale.sol"; +import "../crowdsale/RefundableCrowdsale.sol"; +import "../token/MintableToken.sol"; + +/** + * @title SampleCrowdsaleToken + * @dev Very simple ERC20 Token that can be minted. + * It is meant to be used in a crowdsale contract. + */ +contract SampleCrowdsaleToken is MintableToken { + + string public constant name = "Sample Crowdsale Token"; + string public constant symbol = "SCT"; + uint8 public constant decimals = 18; + +} + +/** + * @title SampleCrowdsale + * @dev This is an example of a fully fledged crowdsale. + * The way to add new features to a base crowdsale is by multiple inheritance. + * In this example we are providing following extensions: + * CappedCrowdsale - sets a max boundary for raised funds + * RefundableCrowdsale - set a min goal to be reached and returns funds if it's not met + * + * After adding multiple features it's good practice to run integration tests + * to ensure that subcontracts works together as intended. + */ +contract SampleCrowdsale is CappedCrowdsale, RefundableCrowdsale { + + function SampleCrowdsale(uint256 _startBlock, uint256 _endBlock, uint256 _rate, uint256 _goal, uint256 _cap, address _wallet) + CappedCrowdsale(_cap) + FinalizableCrowdsale() + RefundableCrowdsale(_goal) + Crowdsale(_startBlock, _endBlock, _rate, _wallet) + { + //As goal needs to be met for a successful crowdsale + //the value needs to less or equal than a cap which is limit for accepted funds + require(_goal <= _cap); + } + + function createTokenContract() internal returns (MintableToken) { + return new SampleCrowdsaleToken(); + } + +} \ No newline at end of file diff --git a/contracts/examples/crowdsale/SampleCrowdsale.sol b/contracts/examples/crowdsale/SampleCrowdsale.sol deleted file mode 100644 index 82071c08d..000000000 --- a/contracts/examples/crowdsale/SampleCrowdsale.sol +++ /dev/null @@ -1,27 +0,0 @@ -pragma solidity ^0.4.11; - -import "../../crowdsale/CappedCrowdsale.sol"; -import "../../crowdsale/RefundableCrowdsale.sol"; -import "./SampleCrowdsaleToken.sol"; - -/** - * @title SampleCrowdsale - * @dev This is an example of a fully fledged crowdsale that incorporates - * ability to finalize sale and checks for both cap and goal. - */ -contract SampleCrowdsale is CappedCrowdsale, RefundableCrowdsale { - - function SampleCrowdsale(uint256 _startBlock, uint256 _endBlock, uint256 _rate, uint256 _goal, uint256 _cap, address _wallet) - CappedCrowdsale(_cap) - FinalizableCrowdsale() - RefundableCrowdsale(_goal) - Crowdsale(_startBlock, _endBlock, _rate, _wallet) - { - require(_goal <= _cap); - } - - function createTokenContract() internal returns (MintableToken) { - return new SampleCrowdsaleToken(); - } - -} \ No newline at end of file diff --git a/contracts/examples/crowdsale/SampleCrowdsaleToken.sol b/contracts/examples/crowdsale/SampleCrowdsaleToken.sol deleted file mode 100644 index 155b3e439..000000000 --- a/contracts/examples/crowdsale/SampleCrowdsaleToken.sol +++ /dev/null @@ -1,18 +0,0 @@ -pragma solidity ^0.4.11; - - -import "../../token/MintableToken.sol"; - - -/** - * @title SampleCrowdsaleToken - * @dev Very simple ERC20 Token that can be minted. - * It is meant to be used in a crowdsale contract. - */ -contract SampleCrowdsaleToken is MintableToken { - - string public constant name = "Sample Crowdsale Token"; - string public constant symbol = "SCT"; - uint256 public constant decimals = 18; - -} diff --git a/test/SampleCrowdsale.js b/test/SampleCrowdsale.js index 2f6ddea41..a589194f7 100644 --- a/test/SampleCrowdsale.js +++ b/test/SampleCrowdsale.js @@ -34,7 +34,7 @@ contract('Crowdsale', function ([owner, wallet, investor]) { (await this.crowdsale.startBlock()).should.be.bignumber.equal(this.startBlock); (await this.crowdsale.endBlock()).should.be.bignumber.equal(this.endBlock); (await this.crowdsale.rate()).should.be.bignumber.equal(RATE); - (await this.crowdsale.wallet()).should.be.bignumber.equal(wallet); + (await this.crowdsale.wallet()).should.be.equal(wallet); (await this.crowdsale.goal()).should.be.bignumber.equal(GOAL); (await this.crowdsale.cap()).should.be.bignumber.equal(CAP); });