1 files changed, 168 insertions, 0 deletions
diff --git a/packages/contracts/test/ts/ether_token_v2.ts b/packages/contracts/test/ts/ether_token_v2.ts
new file mode 100644
index 000000000..b88fef579
--- /dev/null
+++ b/packages/contracts/test/ts/ether_token_v2.ts
@@ -0,0 +1,168 @@
+import {ZeroEx, ZeroExError} from '0x.js';
+import {promisify} from '@0xproject/utils';
+import {BigNumber} from 'bignumber.js';
+import * as chai from 'chai';
+import Web3 = require('web3');
+
+import {Artifacts} from '../../util/artifacts';
+import {constants} from '../../util/constants';
+
+import {chaiSetup} from './utils/chai_setup';
+
+const {EtherTokenV2} = new Artifacts(artifacts);
+
+chaiSetup.configure();
+const expect = chai.expect;
+
+// In order to benefit from type-safety, we re-assign the global web3 instance injected by Truffle
+// with type `any` to a variable of type `Web3`.
+const web3: Web3 = (global as any).web3;
+
+contract('EtherTokenV2', (accounts: string[]) => {
+    const account = accounts[0];
+    const gasPrice = ZeroEx.toBaseUnitAmount(new BigNumber(20), 9);
+    let zeroEx: ZeroEx;
+    let etherTokenAddress: string;
+    beforeEach(async () => {
+        const etherToken = await EtherTokenV2.new();
+        etherTokenAddress = etherToken.address;
+        zeroEx = new ZeroEx(web3.currentProvider, {
+            gasPrice,
+            etherTokenContractAddress: etherTokenAddress,
+            networkId: constants.TESTRPC_NETWORK_ID,
+        });
+    });
+
+    const sendTransactionAsync = promisify<string>(web3.eth.sendTransaction);
+    const getEthBalanceAsync = async (owner: string) => {
+        const balanceStr = await promisify<string>(web3.eth.getBalance)(owner);
+        const balance = new BigNumber(balanceStr);
+        return balance;
+    };
+
+    describe('deposit', () => {
+        it('should throw if caller attempts to deposit more Ether than caller balance', async () => {
+            const initEthBalance = await getEthBalanceAsync(account);
+            const ethToDeposit = initEthBalance.plus(1);
+
+            return expect(zeroEx.etherToken.depositAsync(ethToDeposit, account))
+                .to.be.rejectedWith(ZeroExError.InsufficientEthBalanceForDeposit);
+        });
+
+        it('should convert deposited Ether to wrapped Ether tokens', async () => {
+            const initEthBalance = await getEthBalanceAsync(account);
+            const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+
+            const ethToDeposit = new BigNumber(web3.toWei(1, 'ether'));
+
+            const txHash = await zeroEx.etherToken.depositAsync(ethToDeposit, account);
+            const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
+
+            const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
+            const finalEthBalance = await getEthBalanceAsync(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));
+        });
+
+        it('should log 1 event with correct arguments', async () => {
+            const ethToDeposit = new BigNumber(web3.toWei(1, 'ether'));
+
+            const txHash = await zeroEx.etherToken.depositAsync(ethToDeposit, account);
+            const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
+
+            const logs = receipt.logs;
+            expect(logs.length).to.equal(1);
+
+            const expectedFrom = ZeroEx.NULL_ADDRESS;
+            const expectedTo = account;
+            const expectedValue = ethToDeposit;
+            const logArgs = (logs[0] as any).args;
+            expect(logArgs._from).to.equal(expectedFrom);
+            expect(logArgs._to).to.equal(expectedTo);
+            expect(logArgs._value).to.be.bignumber.equal(ethToDeposit);
+        });
+    });
+
+    describe('withdraw', () => {
+        beforeEach(async () => {
+            const ethToDeposit = new BigNumber(web3.toWei(1, 'ether'));
+            await zeroEx.etherToken.depositAsync(ethToDeposit, account);
+        });
+
+        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(ethTokensToWithdraw, account))
+                .to.be.rejectedWith(ZeroExError.InsufficientWEthBalanceForWithdrawal);
+        });
+
+        it('should convert ether tokens to ether with sufficient balance', async () => {
+            const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+            const initEthBalance = await getEthBalanceAsync(account);
+            const ethTokensToWithdraw = initEthTokenBalance;
+            expect(ethTokensToWithdraw).to.not.be.bignumber.equal(0);
+            const txHash = await zeroEx.etherToken.withdrawAsync(ethTokensToWithdraw, account, {
+                gasLimit: constants.MAX_ETHERTOKEN_WITHDRAW_GAS,
+            });
+            const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
+
+            const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
+            const finalEthBalance = await getEthBalanceAsync(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));
+        });
+
+        it('should log 1 event with correct arguments', async () => {
+            const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+            const initEthBalance = await getEthBalanceAsync(account);
+            const ethTokensToWithdraw = initEthTokenBalance;
+            expect(ethTokensToWithdraw).to.not.be.bignumber.equal(0);
+            const txHash = await zeroEx.etherToken.withdrawAsync(ethTokensToWithdraw, account, {
+                gasLimit: constants.MAX_ETHERTOKEN_WITHDRAW_GAS,
+            });
+            const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
+
+            const logs = receipt.logs;
+            expect(logs.length).to.equal(1);
+
+            const expectedFrom = account;
+            const expectedTo = ZeroEx.NULL_ADDRESS;
+            const expectedValue = ethTokensToWithdraw;
+            const logArgs = (logs[0] as any).args;
+            expect(logArgs._from).to.equal(expectedFrom);
+            expect(logArgs._to).to.equal(expectedTo);
+            expect(logArgs._value).to.be.bignumber.equal(ethTokensToWithdraw);
+        });
+    });
+
+    describe('fallback', () => {
+        it('should convert sent ether to ether tokens', async () => {
+            const initEthBalance = await getEthBalanceAsync(account);
+            const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
+
+            const ethToDeposit = ZeroEx.toBaseUnitAmount(new BigNumber(1), 18);
+
+            const txHash = await sendTransactionAsync({
+                from: account,
+                to: etherTokenAddress,
+                value: ethToDeposit,
+                gasPrice,
+            });
+
+            const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
+
+            const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
+            const finalEthBalance = await getEthBalanceAsync(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));
+        });
+    });
+});