From d25a510291dd6f59be93a51038924ce893018889 Mon Sep 17 00:00:00 2001
From: Lawrence Forman <lawrence@0xproject.com>
Date: Thu, 4 Apr 2019 19:19:37 -0400
Subject: [PATCH] In `@0x/contracts-exchange`: upgrading tests...

---
 contracts/exchange/test/core.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/contracts/exchange/test/core.ts b/contracts/exchange/test/core.ts
index bee19b1327..1d94bdae09 100644
--- a/contracts/exchange/test/core.ts
+++ b/contracts/exchange/test/core.ts
@@ -56,6 +56,7 @@ const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
 
 // tslint:disable:no-unnecessary-type-assertion
 describe('Exchange core', () => {
+    const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000';
     let chainId: number;
     let makerAddress: string;
     let owner: string;