Merge ffe1589 into 4a10f72

contracts/token/ERC20/RBACMintableToken.sol

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+pragma solidity ^0.4.21;
+
+import "./MintableToken.sol";
+import "../../ownership/rbac/RBACWithAdmin.sol";
+
+
+/**
+ * @title RBACMintable token
+ * @author Vittorio Minacori (@vittominacori)
+ * @dev Simple ERC20 Mintable Token, with RBAC minter permissions
+ */
+contract RBACMintableToken is MintableToken, RBACWithAdmin {
+  /**
+   * A constant role name for indicating minters.
+   */
+  string public constant ROLE_MINTER = "minter";
+
+  /**
+   * @dev modifier to scope access to minters
+   * // reverts
+   */
+  modifier onlyMinter()
+  {
+    checkRole(msg.sender, ROLE_MINTER);
+    _;
+  }
+
+  /**
+   * @dev Function to mint tokens
+   * @param _to The address that will receive the minted tokens.
+   * @param _amount The amount of tokens to mint.
+   * @return A boolean that indicates if the operation was successful.
+   */
+  function mint(address _to, uint256 _amount) onlyMinter canMint public returns (bool) {
+    totalSupply_ = totalSupply_.add(_amount);
+    balances[_to] = balances[_to].add(_amount);
+    emit Mint(_to, _amount);
+    emit Transfer(address(0), _to, _amount);
+    return true;
+  }
+}

test/crowdsale/RBACMintedCrowdsale.test.js

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+import ether from '../helpers/ether';
+
+const BigNumber = web3.BigNumber;
+
+const should = require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should();
+
+const MintedCrowdsale = artifacts.require('MintedCrowdsaleImpl');
+const RBACMintableToken = artifacts.require('RBACMintableToken');
+
+const ROLE_MINTER = 'minter';
+
+contract('MintedCrowdsale using RBACMintableToken', function ([_, investor, wallet, purchaser]) {
+  const rate = new BigNumber(1000);
+  const value = ether(5);
+
+  const expectedTokenAmount = rate.mul(value);
+
+  beforeEach(async function () {
+    this.token = await RBACMintableToken.new();
+    this.crowdsale = await MintedCrowdsale.new(rate, wallet, this.token.address);
+    await this.token.adminAddRole(this.crowdsale.address, ROLE_MINTER);
+  });
+
+  describe('accepting payments', function () {
+    it('should have minter role on token', async function () {
+      const isMinter = await this.token.hasRole(this.crowdsale.address, ROLE_MINTER);
+      isMinter.should.equal(true);
+    });
+
+    it('should accept payments', async function () {
+      await this.crowdsale.send(value).should.be.fulfilled;
+      await this.crowdsale.buyTokens(investor, { value: value, from: purchaser }).should.be.fulfilled;
+    });
+  });
+
+  describe('high-level purchase', function () {
+    it('should log purchase', async function () {
+      const { logs } = await this.crowdsale.sendTransaction({ value: value, from: investor });
+      const event = logs.find(e => e.event === 'TokenPurchase');
+      should.exist(event);
+      event.args.purchaser.should.equal(investor);
+      event.args.beneficiary.should.equal(investor);
+      event.args.value.should.be.bignumber.equal(value);
+      event.args.amount.should.be.bignumber.equal(expectedTokenAmount);
+    });
+
+    it('should assign tokens to sender', async function () {
+      await this.crowdsale.sendTransaction({ value: value, from: investor });
+      let balance = await this.token.balanceOf(investor);
+      balance.should.be.bignumber.equal(expectedTokenAmount);
+    });
+
+    it('should forward funds to wallet', async function () {
+      const pre = web3.eth.getBalance(wallet);
+      await this.crowdsale.sendTransaction({ value, from: investor });
+      const post = web3.eth.getBalance(wallet);
+      post.minus(pre).should.be.bignumber.equal(value);
+    });
+  });
+});

test/token/ERC20/RBACMintableToken.test.js

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+import assertRevert from '../../helpers/assertRevert';
+const RBACMintableToken = artifacts.require('RBACMintableToken');
+
+const ROLE_MINTER = 'minter';
+
+contract('RBACMintable', function ([owner, anotherAccount, minter]) {
+  beforeEach(async function () {
+    this.token = await RBACMintableToken.new({ from: owner });
+    await this.token.adminAddRole(minter, ROLE_MINTER);
+  });
+
+  describe('mint', function () {
+    const amount = 100;
+
+    describe('when the sender has the minter role', function () {
+      const from = minter;
+
+      describe('when the token minting is not finished', function () {
+        it('mints the requested amount', async function () {
+          await this.token.mint(owner, amount, { from });
+
+          const balance = await this.token.balanceOf(owner);
+          assert.equal(balance, amount);
+        });
+
+        it('emits a mint and a transfer event', async function () {
+          const { logs } = await this.token.mint(owner, amount, { from });
+
+          assert.equal(logs.length, 2);
+          assert.equal(logs[0].event, 'Mint');
+          assert.equal(logs[0].args.to, owner);
+          assert.equal(logs[0].args.amount, amount);
+          assert.equal(logs[1].event, 'Transfer');
+        });
+      });
+
+      describe('when the token minting is finished', function () {
+        beforeEach(async function () {
+          await this.token.finishMinting({ from: owner });
+        });
+
+        it('reverts', async function () {
+          await assertRevert(this.token.mint(owner, amount, { from }));
+        });
+      });
+    });
+
+    describe('when the sender has not the minter role', function () {
+      const from = anotherAccount;
+
+      describe('when the token minting is not finished', function () {
+        it('reverts', async function () {
+          await assertRevert(this.token.mint(owner, amount, { from }));
+        });
+      });
+
+      describe('when the token minting is already finished', function () {
+        beforeEach(async function () {
+          await this.token.finishMinting({ from: owner });
+        });
+
+        it('reverts', async function () {
+          await assertRevert(this.token.mint(owner, amount, { from }));
+        });
+      });
+    });
+  });
+});