Refactor contracts tests to not use injected web3 instance

3 files changed, 9 insertions, 20 deletions

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);