12 files changed, 46 insertions, 81 deletions
diff --git a/packages/contracts/test/ether_token.ts b/packages/contracts/test/ether_token.ts
index 31c6c4ed6..eadeeaa57 100644
--- a/packages/contracts/test/ether_token.ts
+++ b/packages/contracts/test/ether_token.ts
@@ -1,9 +1,8 @@
 import { ZeroEx, ZeroExError } from '0x.js';
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+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 * as Web3 from 'web3';
 
 import { Artifacts } from '../util/artifacts';
 import { constants } from '../util/constants';
@@ -15,10 +14,8 @@ const { EtherToken } = 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;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('EtherToken', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
diff --git a/packages/contracts/test/exchange/core.ts b/packages/contracts/test/exchange/core.ts
index 9a6b4dc83..4f55bc398 100644
--- a/packages/contracts/test/exchange/core.ts
+++ b/packages/contracts/test/exchange/core.ts
@@ -1,10 +1,9 @@
 import { ZeroEx } from '0x.js';
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import ethUtil = require('ethereumjs-util');
-import * as Web3 from 'web3';
 
 import { Artifacts } from '../../util/artifacts';
 import { Balances } from '../../util/balances';
@@ -19,11 +18,8 @@ import { chaiSetup } from '../utils/chai_setup';
 chaiSetup.configure();
 const expect = chai.expect;
 const { Exchange, TokenTransferProxy, DummyToken, TokenRegistry, MaliciousToken } = new Artifacts(artifacts);
-
-// 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;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('Exchange', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
diff --git a/packages/contracts/test/exchange/helpers.ts b/packages/contracts/test/exchange/helpers.ts
index f6e11f087..7af9866d5 100644
--- a/packages/contracts/test/exchange/helpers.ts
+++ b/packages/contracts/test/exchange/helpers.ts
@@ -1,13 +1,11 @@
 import { ZeroEx } from '0x.js';
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import ethUtil = require('ethereumjs-util');
-import * as Web3 from 'web3';
 
 import { Artifacts } from '../../util/artifacts';
-import { constants } from '../../util/constants';
 import { ExchangeWrapper } from '../../util/exchange_wrapper';
 import { Order } from '../../util/order';
 import { OrderFactory } from '../../util/order_factory';
@@ -17,10 +15,8 @@ chaiSetup.configure();
 const expect = chai.expect;
 
 const { Exchange, TokenRegistry } = new Artifacts(artifacts);
-// 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;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('Exchange', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
diff --git a/packages/contracts/test/exchange/wrapper.ts b/packages/contracts/test/exchange/wrapper.ts
index 22deec01c..93f9bf876 100644
--- a/packages/contracts/test/exchange/wrapper.ts
+++ b/packages/contracts/test/exchange/wrapper.ts
@@ -1,10 +1,9 @@
 import { ZeroEx } from '0x.js';
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import * as _ from 'lodash';
-import * as Web3 from 'web3';
 
 import { Artifacts } from '../../util/artifacts';
 import { Balances } from '../../util/balances';
@@ -18,10 +17,8 @@ import { chaiSetup } from '../utils/chai_setup';
 chaiSetup.configure();
 const expect = chai.expect;
 const { Exchange, TokenTransferProxy, DummyToken, TokenRegistry } = new Artifacts(artifacts);
-// 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;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('Exchange', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
diff --git a/packages/contracts/test/multi_sig_with_time_lock.ts b/packages/contracts/test/multi_sig_with_time_lock.ts
index 03914786c..6590dccaa 100644
--- a/packages/contracts/test/multi_sig_with_time_lock.ts
+++ b/packages/contracts/test/multi_sig_with_time_lock.ts
@@ -1,8 +1,7 @@
-import { BlockchainLifecycle, RPC } from '@0xproject/dev-utils';
-import { BigNumber, promisify } from '@0xproject/utils';
+import { BlockchainLifecycle, devConstants, RPC, web3Factory } from '@0xproject/dev-utils';
+import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
-import * as Web3 from 'web3';
 
 import * as multiSigWalletJSON from '../../build/contracts/MultiSigWalletWithTimeLock.json';
 import * as truffleConf from '../truffle.js';
@@ -19,10 +18,8 @@ const MULTI_SIG_ABI = (multiSigWalletJSON as any).abi;
 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;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('MultiSigWalletWithTimeLock', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
@@ -79,8 +76,9 @@ describe('MultiSigWalletWithTimeLock', () => {
         it('should set confirmation time with enough confirmations', async () => {
             const res = await multiSig.confirmTransaction(txId, { from: owners[1] });
             expect(res.logs).to.have.length(2);
-            const blockNum = await promisify<number>(web3.eth.getBlockNumber)();
-            const blockInfo = await promisify<Web3.BlockWithoutTransactionData>(web3.eth.getBlock)(blockNum);
+
+            const blockNum = await web3Wrapper.getBlockNumberAsync();
+            const blockInfo = await web3Wrapper.getBlockAsync(blockNum);
             const timestamp = new BigNumber(blockInfo.timestamp);
             const confirmationTimeBigNum = new BigNumber(await multiSig.confirmationTimes.call(txId));
 
diff --git a/packages/contracts/test/multi_sig_with_time_lock_except_remove_auth_addr.ts b/packages/contracts/test/multi_sig_with_time_lock_except_remove_auth_addr.ts
index f8e8c1f8d..b10e260a2 100644
--- a/packages/contracts/test/multi_sig_with_time_lock_except_remove_auth_addr.ts
+++ b/packages/contracts/test/multi_sig_with_time_lock_except_remove_auth_addr.ts
@@ -1,7 +1,6 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
-import * as Web3 from 'web3';
 
 import * as tokenTransferProxyJSON from '../../build/contracts/TokenTransferProxy.json';
 import { Artifacts } from '../util/artifacts';
@@ -16,10 +15,8 @@ const PROXY_ABI = (tokenTransferProxyJSON as any).abi;
 
 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;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
diff --git a/packages/contracts/test/token_registry.ts b/packages/contracts/test/token_registry.ts
index bcb620e03..cc78feba3 100644
--- a/packages/contracts/test/token_registry.ts
+++ b/packages/contracts/test/token_registry.ts
@@ -1,10 +1,9 @@
 import { ZeroEx } from '0x.js';
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import ethUtil = require('ethereumjs-util');
 import * as _ from 'lodash';
-import * as Web3 from 'web3';
 
 import { Artifacts } from '../util/artifacts';
 import { constants } from '../util/constants';
@@ -16,10 +15,8 @@ import { chaiSetup } from './utils/chai_setup';
 const { TokenRegistry } = 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;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('TokenRegistry', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
diff --git a/packages/contracts/test/token_transfer_proxy/auth.ts b/packages/contracts/test/token_transfer_proxy/auth.ts
index 399ad2080..65455ed9e 100644
--- a/packages/contracts/test/token_transfer_proxy/auth.ts
+++ b/packages/contracts/test/token_transfer_proxy/auth.ts
@@ -1,7 +1,6 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
-import * as Web3 from 'web3';
 
 import { constants } from '../../util/constants';
 import { ContractInstance } from '../../util/types';
@@ -10,10 +9,8 @@ import { chaiSetup } from '../utils/chai_setup';
 chaiSetup.configure();
 const expect = chai.expect;
 const TokenTransferProxy = artifacts.require('./db/TokenTransferProxy.sol');
-// 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;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('TokenTransferProxy', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
diff --git a/packages/contracts/test/token_transfer_proxy/transfer_from.ts b/packages/contracts/test/token_transfer_proxy/transfer_from.ts
index 1a5151309..d1245d3b2 100644
--- a/packages/contracts/test/token_transfer_proxy/transfer_from.ts
+++ b/packages/contracts/test/token_transfer_proxy/transfer_from.ts
@@ -1,7 +1,6 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
-import * as Web3 from 'web3';
 
 import { Artifacts } from '../../util/artifacts';
 import { Balances } from '../../util/balances';
@@ -12,10 +11,8 @@ import { chaiSetup } from '../utils/chai_setup';
 chaiSetup.configure();
 const expect = chai.expect;
 const { TokenTransferProxy, DummyToken, TokenRegistry } = new Artifacts(artifacts);
-// 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;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('TokenTransferProxy', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
diff --git a/packages/contracts/test/unlimited_allowance_token.ts b/packages/contracts/test/unlimited_allowance_token.ts
index ca8ce4c50..36f88c3d2 100644
--- a/packages/contracts/test/unlimited_allowance_token.ts
+++ b/packages/contracts/test/unlimited_allowance_token.ts
@@ -1,9 +1,8 @@
 import { ZeroEx } from '0x.js';
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
-import * as Web3 from 'web3';
 
 import { Artifacts } from '../util/artifacts';
 import { constants } from '../util/constants';
@@ -12,12 +11,10 @@ import { ContractInstance } from '../util/types';
 import { chaiSetup } from './utils/chai_setup';
 
 const { DummyToken } = new Artifacts(artifacts);
-// 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;
+const web3 = web3Factory.create();
 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('UnlimitedAllowanceToken', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
diff --git a/packages/contracts/test/unlimited_allowance_token_v2.ts b/packages/contracts/test/unlimited_allowance_token_v2.ts
index ebdc3ba11..3c4a8e941 100644
--- a/packages/contracts/test/unlimited_allowance_token_v2.ts
+++ b/packages/contracts/test/unlimited_allowance_token_v2.ts
@@ -1,9 +1,8 @@
 import { ZeroEx } from '0x.js';
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
-import * as Web3 from 'web3';
 
 import { Artifacts } from '../util/artifacts';
 import { constants } from '../util/constants';
@@ -14,8 +13,8 @@ import { chaiSetup } from './utils/chai_setup';
 const { DummyTokenV2 } = new Artifacts(artifacts);
 chaiSetup.configure();
 const expect = chai.expect;
-const web3: Web3 = (global as any).web3;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('UnlimitedAllowanceTokenV2', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
diff --git a/packages/contracts/test/zrx_token.ts b/packages/contracts/test/zrx_token.ts
index fe251f53d..573fb8d5a 100644
--- a/packages/contracts/test/zrx_token.ts
+++ b/packages/contracts/test/zrx_token.ts
@@ -1,9 +1,8 @@
 import { ZeroEx } from '0x.js';
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
-import Web3 = require('web3');
 
 import { Artifacts } from '../util/artifacts';
 import { constants } from '../util/constants';
@@ -14,10 +13,8 @@ import { chaiSetup } from './utils/chai_setup';
 chaiSetup.configure();
 const expect = chai.expect;
 const { Exchange, ZRXToken } = new Artifacts(artifacts);
-// 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;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const web3 = web3Factory.create();
+const blockchainLifecycle = new BlockchainLifecycle(devConstants.RPC_URL);
 
 describe('ZRXToken', () => {
     const web3Wrapper = new Web3Wrapper(web3.currentProvider);
@@ -140,10 +137,10 @@ describe('ZRXToken', () => {
             const initOwnerBalance = await zeroEx.token.getBalanceAsync(zrxAddress, owner);
             const amountToTransfer = initOwnerBalance;
             const initSpenderAllowance = MAX_UINT;
-            let txHash = await zeroEx.token.setAllowanceAsync(zrxAddress, owner, spender, initSpenderAllowance, {
+            await zeroEx.token.setAllowanceAsync(zrxAddress, owner, spender, initSpenderAllowance, {
                 gasLimit: constants.MAX_TOKEN_APPROVE_GAS,
             });
-            txHash = await zeroEx.token.transferFromAsync(zrxAddress, owner, spender, spender, amountToTransfer, {
+            await zeroEx.token.transferFromAsync(zrxAddress, owner, spender, spender, amountToTransfer, {
                 gasLimit: constants.MAX_TOKEN_TRANSFERFROM_GAS,
             });
 
@@ -156,8 +153,8 @@ describe('ZRXToken', () => {
             const initSpenderBalance = await zeroEx.token.getBalanceAsync(zrxAddress, spender);
             const amountToTransfer = initOwnerBalance;
             const initSpenderAllowance = initOwnerBalance;
-            let txHash = await zeroEx.token.setAllowanceAsync(zrxAddress, owner, spender, initSpenderAllowance);
-            txHash = await zeroEx.token.transferFromAsync(zrxAddress, owner, spender, spender, amountToTransfer, {
+            await zeroEx.token.setAllowanceAsync(zrxAddress, owner, spender, initSpenderAllowance);
+            await zeroEx.token.transferFromAsync(zrxAddress, owner, spender, spender, amountToTransfer, {
                 gasLimit: constants.MAX_TOKEN_TRANSFERFROM_GAS,
             });
 
@@ -171,8 +168,8 @@ describe('ZRXToken', () => {
         it('should modify allowance if spender has sufficient allowance less than 2^256 - 1', async () => {
             const initOwnerBalance = await zeroEx.token.getBalanceAsync(zrxAddress, owner);
             const amountToTransfer = initOwnerBalance;
-            let txHash = await zeroEx.token.setAllowanceAsync(zrxAddress, owner, spender, amountToTransfer);
-            txHash = await zeroEx.token.transferFromAsync(zrxAddress, owner, spender, spender, amountToTransfer, {
+            await zeroEx.token.setAllowanceAsync(zrxAddress, owner, spender, amountToTransfer);
+            await zeroEx.token.transferFromAsync(zrxAddress, owner, spender, spender, amountToTransfer, {
                 gasLimit: constants.MAX_TOKEN_TRANSFERFROM_GAS,
             });