Merge pull request #283 from OpenZeppelin/crowdsale

Add Crowdsale contracts

test/helpers/CappedCrowdsaleImpl.sol

@@ -0,0 +1,21 @@
+pragma solidity ^0.4.11;
+
+
+import '../../contracts/crowdsale/CappedCrowdsale.sol';
+
+
+contract CappedCrowdsaleImpl is CappedCrowdsale {
+
+  function CappedCrowdsaleImpl (
+    uint256 _startBlock,
+    uint256 _endBlock,
+    uint256 _rate,
+    address _wallet,
+    uint256 _cap
+  )
+    Crowdsale(_startBlock, _endBlock, _rate, _wallet)
+    CappedCrowdsale(_cap) 
+  {
+  }
+
+}

test/helpers/EVMThrow.js

@@ -0,0 +1 @@
+export default 'invalid opcode'

test/helpers/FinalizableCrowdsaleImpl.sol

@@ -0,0 +1,20 @@
+pragma solidity ^0.4.11;
+
+
+import '../../contracts/crowdsale/FinalizableCrowdsale.sol';
+
+
+contract FinalizableCrowdsaleImpl is FinalizableCrowdsale {
+
+  function FinalizableCrowdsaleImpl (
+    uint256 _startBlock,
+    uint256 _endBlock,
+    uint256 _rate,
+    address _wallet
+  )
+    Crowdsale(_startBlock, _endBlock, _rate, _wallet)
+    FinalizableCrowdsale() 
+  {
+  }
+
+}

test/helpers/RefundableCrowdsaleImpl.sol

@@ -0,0 +1,21 @@
+pragma solidity ^0.4.11;
+
+
+import '../../contracts/crowdsale/RefundableCrowdsale.sol';
+
+
+contract RefundableCrowdsaleImpl is RefundableCrowdsale {
+
+  function RefundableCrowdsaleImpl (
+    uint256 _startBlock,
+    uint256 _endBlock,
+    uint256 _rate,
+    address _wallet,
+    uint256 _goal
+  )
+    Crowdsale(_startBlock, _endBlock, _rate, _wallet)
+    RefundableCrowdsale(_goal) 
+  {
+  }
+
+}

test/helpers/advanceToBlock.js

@@ -0,0 +1,22 @@
+export function advanceBlock() {
+  return new Promise((resolve, reject) => {
+    web3.currentProvider.sendAsync({
+      jsonrpc: '2.0',
+      method: 'evm_mine',
+      id: Date.now(),
+    }, (err, res) => {
+      return err ? reject(err) : resolve(res)
+    })
+  })
+}
+
+// Advances the block number so that the last mined block is `number`.
+export default async function advanceToBlock(number) {
+  if (web3.eth.blockNumber > number) {
+    throw Error(`block number ${number} is in the past (current is ${web3.eth.blockNumber})`)
+  }
+
+  while (web3.eth.blockNumber < number) {
+    await advanceBlock()
+  }
+}

test/helpers/ether.js

@@ -0,0 +1,3 @@
+export default function ether(n) {
+  return new web3.BigNumber(web3.toWei(n, 'ether'))
+}