1 files changed, 126 insertions, 0 deletions
diff --git a/packages/contracts/test/ether_token.ts b/packages/contracts/test/ether_token.ts
new file mode 100644
index 000000000..4c70534ee
--- /dev/null
+++ b/packages/contracts/test/ether_token.ts
@@ -0,0 +1,126 @@
+import { ZeroEx, ZeroExError } from '0x.js';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
+import { BigNumber, promisify } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
+import * as chai from 'chai';
+
+import { constants } from '../util/constants';
+import { ContractName } from '../util/types';
+
+import { chaiSetup } from './utils/chai_setup';
+import { deployer } from './utils/deployer';
+
+chaiSetup.configure();
+const expect = chai.expect;
+const web3 = web3Factory.create();
+const web3Wrapper = new Web3Wrapper(web3.currentProvider);
+const blockchainLifecycle = new BlockchainLifecycle();
+
+describe('EtherToken', () => {
+    let account: string;
+    const gasPrice = ZeroEx.toBaseUnitAmount(new BigNumber(20), 9);
+    let zeroEx: ZeroEx;
+    let etherTokenAddress: string;
+    before(async () => {
+        const accounts = await web3Wrapper.getAvailableAddressesAsync();
+        account = accounts[0];
+
+        const etherToken = await deployer.deployAsync(ContractName.EtherToken);
+        etherTokenAddress = etherToken.address;
+        zeroEx = new ZeroEx(web3.currentProvider, {
+            gasPrice,
+            networkId: constants.TESTRPC_NETWORK_ID,
+        });
+    });
+    beforeEach(async () => {
+        await blockchainLifecycle.startAsync();
+    });
+    afterEach(async () => {
+        await blockchainLifecycle.revertAsync();
+    });
+    describe('deposit', () => {
+        it('should throw if caller attempts to deposit more Ether than caller balance', async () => {
+            const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+            const ethToDeposit = initEthBalance.plus(1);
+
+            return expect(zeroEx.etherToken.depositAsync(etherTokenAddress, ethToDeposit, account)).to.be.rejectedWith(
+                ZeroExError.InsufficientEthBalanceForDeposit,
+            );
+        });
+
+        it('should convert deposited Ether to wrapped Ether tokens', async () => {
+            const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+            const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+
+            const ethToDeposit = new BigNumber(web3.toWei(1, 'ether'));
+
+            const txHash = await zeroEx.etherToken.depositAsync(etherTokenAddress, ethToDeposit, account);
+            const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
+
+            const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
+            const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+            const finalEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+
+            expect(finalEthBalance).to.be.bignumber.equal(initEthBalance.minus(ethToDeposit.plus(ethSpentOnGas)));
+            expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.plus(ethToDeposit));
+        });
+    });
+
+    describe('withdraw', () => {
+        it('should throw if caller attempts to withdraw greater than caller balance', async () => {
+            const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+            const ethTokensToWithdraw = initEthTokenBalance.plus(1);
+
+            return expect(
+                zeroEx.etherToken.withdrawAsync(etherTokenAddress, ethTokensToWithdraw, account),
+            ).to.be.rejectedWith(ZeroExError.InsufficientWEthBalanceForWithdrawal);
+        });
+
+        it('should convert ether tokens to ether with sufficient balance', async () => {
+            const ethToDeposit = new BigNumber(web3.toWei(1, 'ether'));
+            await zeroEx.etherToken.depositAsync(etherTokenAddress, ethToDeposit, account);
+            const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+            const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+            const ethTokensToWithdraw = initEthTokenBalance;
+            expect(ethTokensToWithdraw).to.not.be.bignumber.equal(0);
+            const txHash = await zeroEx.etherToken.withdrawAsync(etherTokenAddress, ethTokensToWithdraw, account, {
+                gasLimit: constants.MAX_ETHERTOKEN_WITHDRAW_GAS,
+            });
+            const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
+
+            const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
+            const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+            const finalEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+
+            expect(finalEthBalance).to.be.bignumber.equal(
+                initEthBalance.plus(ethTokensToWithdraw.minus(ethSpentOnGas)),
+            );
+            expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.minus(ethTokensToWithdraw));
+        });
+    });
+
+    describe('fallback', () => {
+        it('should convert sent ether to ether tokens', async () => {
+            const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+            const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+
+            const ethToDeposit = ZeroEx.toBaseUnitAmount(new BigNumber(1), 18);
+
+            const txHash = await web3Wrapper.sendTransactionAsync({
+                from: account,
+                to: etherTokenAddress,
+                value: ethToDeposit,
+                gasPrice,
+            });
+
+            const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
+
+            const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
+            const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+            const finalEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+
+            expect(finalEthBalance).to.be.bignumber.equal(initEthBalance.minus(ethToDeposit.plus(ethSpentOnGas)));
+            expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.plus(ethToDeposit));
+        });
+    });
+});