Remove 0x.js dep from contracts

1 files changed, 79 insertions, 84 deletions

diff --git a/packages/contracts/test/exchange/match_orders.ts b/packages/contracts/test/exchange/match_orders.ts
index 94cdf4598..bdf4f54fb 100644
--- a/packages/contracts/test/exchange/match_orders.ts
+++ b/packages/contracts/test/exchange/match_orders.ts
@@ -1,6 +1,7 @@
-import { LogWithDecodedArgs, ZeroEx } from '0x.js';
 import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { LogWithDecodedArgs } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import ethUtil = require('ethereumjs-util');
 import * as _ from 'lodash';
@@ -76,8 +77,6 @@ describe('matchOrders', () => {
 
     let matchOrderTester: MatchOrderTester;
 
-    let zeroEx: ZeroEx;
-
     before(async () => {
         // Create accounts
         const accounts = await web3Wrapper.getAvailableAddressesAsync();
@@ -111,11 +110,7 @@ describe('matchOrders', () => {
             txDefaults,
             assetProxyUtils.encodeERC20ProxyData(zrxToken.address),
         );
-        zeroEx = new ZeroEx(provider, {
-            exchangeContractAddress: exchange.address,
-            networkId: constants.TESTRPC_NETWORK_ID,
-        });
-        exchangeWrapper = new ExchangeWrapper(exchange, zeroEx);
+        exchangeWrapper = new ExchangeWrapper(exchange);
         await exchangeWrapper.registerAssetProxyAsync(AssetProxyId.ERC20, erc20Proxy.address, owner);
         await exchangeWrapper.registerAssetProxyAsync(AssetProxyId.ERC721, erc721Proxy.address, owner);
         // Authorize ERC20 and ERC721 trades by exchange
@@ -161,16 +156,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match signedOrderLeft with signedOrderRight
@@ -195,16 +190,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Store original taker balance
@@ -240,16 +235,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(20), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(4), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(20), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(4), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -274,16 +269,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(50), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -308,16 +303,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(50), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -347,8 +342,8 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(50), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match signedOrderLeft with signedOrderRight2
@@ -377,8 +372,8 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
 
@@ -386,8 +381,8 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(50), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -417,8 +412,8 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(50), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             // Match signedOrderLeft2 with signedOrderRight
@@ -450,16 +445,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress,
             });
             // Match orders
@@ -478,16 +473,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -507,16 +502,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -536,16 +531,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -565,16 +560,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -594,16 +589,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: makerAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: makerAddressRight,
             });
             // Match orders
@@ -622,16 +617,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Cancel left order
@@ -648,16 +643,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Cancel right order
@@ -674,16 +669,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(1), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(200), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -704,16 +699,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -734,16 +729,16 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(5), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(2), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders
@@ -766,14 +761,14 @@ describe('matchOrders', () => {
                 makerAssetData: assetProxyUtils.encodeERC721ProxyData(defaultERC721AssetAddress, erc721TokenToTransfer),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 makerAssetAmount: new BigNumber(1),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
             const signedOrderRight = orderFactoryRight.newSignedOrder({
                 makerAddress: makerAddressRight,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20TakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC721ProxyData(defaultERC721AssetAddress, erc721TokenToTransfer),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 takerAssetAmount: new BigNumber(1),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
@@ -800,7 +795,7 @@ describe('matchOrders', () => {
                 makerAddress: makerAddressLeft,
                 makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 takerAssetData: assetProxyUtils.encodeERC721ProxyData(defaultERC721AssetAddress, erc721TokenToTransfer),
-                makerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 takerAssetAmount: new BigNumber(1),
                 feeRecipientAddress: feeRecipientAddressLeft,
             });
@@ -809,7 +804,7 @@ describe('matchOrders', () => {
                 makerAssetData: assetProxyUtils.encodeERC721ProxyData(defaultERC721AssetAddress, erc721TokenToTransfer),
                 takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultERC20MakerAssetAddress),
                 makerAssetAmount: new BigNumber(1),
-                takerAssetAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18),
+                takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
                 feeRecipientAddress: feeRecipientAddressRight,
             });
             // Match orders