5 files changed, 13 insertions, 9 deletions
diff --git a/packages/0x.js/src/utils/assert.ts b/packages/0x.js/src/utils/assert.ts
index c21f2dbca..f81e02f78 100644
--- a/packages/0x.js/src/utils/assert.ts
+++ b/packages/0x.js/src/utils/assert.ts
@@ -1,7 +1,7 @@
 import { assert as sharedAssert } from '@0xproject/assert';
 // We need those two unused imports because they're actually used by sharedAssert which gets injected here
 // tslint:disable-next-line:no-unused-variable
-import { Schema } from '@0xproject/json-schemas';
+import { Schema, SchemaValidator } from '@0xproject/json-schemas';
 // tslint:disable-next-line:no-unused-variable
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
diff --git a/packages/0x.js/test/ether_token_wrapper_test.ts b/packages/0x.js/test/ether_token_wrapper_test.ts
index da49ec467..72086dff0 100644
--- a/packages/0x.js/test/ether_token_wrapper_test.ts
+++ b/packages/0x.js/test/ether_token_wrapper_test.ts
@@ -75,11 +75,14 @@ describe('EtherTokenWrapper', () => {
             const contractAddressIfExists = zeroEx.etherToken.getContractAddressIfExists();
             expect(contractAddressIfExists).to.not.be.undefined();
         });
-        it('should return undefined if connected to an unknown network', () => {
+        it('should throw if connected to a private network and contract addresses are not specified', () => {
             const UNKNOWN_NETWORK_NETWORK_ID = 10;
-            const unknownNetworkZeroEx = new ZeroEx(web3.currentProvider, { networkId: UNKNOWN_NETWORK_NETWORK_ID });
-            const contractAddressIfExists = unknownNetworkZeroEx.etherToken.getContractAddressIfExists();
-            expect(contractAddressIfExists).to.be.undefined();
+            expect(
+                () =>
+                    new ZeroEx(web3.currentProvider, {
+                        networkId: UNKNOWN_NETWORK_NETWORK_ID,
+                    } as any),
+            ).to.throw();
         });
     });
     describe('#depositAsync', () => {
diff --git a/packages/0x.js/test/expiration_watcher_test.ts b/packages/0x.js/test/expiration_watcher_test.ts
index b49dee8e5..7f79e3802 100644
--- a/packages/0x.js/test/expiration_watcher_test.ts
+++ b/packages/0x.js/test/expiration_watcher_test.ts
@@ -9,10 +9,10 @@ import * as Web3 from 'web3';
 import { ZeroEx } from '../src/0x';
 import { ExpirationWatcher } from '../src/order_watcher/expiration_watcher';
 import { DoneCallback, Token } from '../src/types';
-import { constants } from '../src/utils/constants';
 import { utils } from '../src/utils/utils';
 
 import { chaiSetup } from './utils/chai_setup';
+import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { reportNoErrorCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
diff --git a/packages/0x.js/test/token_wrapper_test.ts b/packages/0x.js/test/token_wrapper_test.ts
index 34ebe30c2..6ecad4ccf 100644
--- a/packages/0x.js/test/token_wrapper_test.ts
+++ b/packages/0x.js/test/token_wrapper_test.ts
@@ -15,6 +15,7 @@ import {
     TransferContractEventArgs,
     ZeroEx,
     ZeroExError,
+    ZeroExPublicNetworkConfig,
 } from '../src';
 import { DoneCallback } from '../src/types';
 
diff --git a/packages/0x.js/test/utils/constants.ts b/packages/0x.js/test/utils/constants.ts
index cf030259c..bd7841feb 100644
--- a/packages/0x.js/test/utils/constants.ts
+++ b/packages/0x.js/test/utils/constants.ts
@@ -1,8 +1,8 @@
 export const constants = {
     NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
-    ROPSTEN_NETWORK_ID: 3,
-    KOVAN_NETWORK_ID: 42,
-    TESTRPC_NETWORK_ID: 50,
+    ROPSTEN_NETWORK_ID: 3 as 3,
+    KOVAN_NETWORK_ID: 42 as 42,
+    TESTRPC_NETWORK_ID: 50 as 50,
     KOVAN_RPC_URL: 'https://kovan.infura.io/',
     ROPSTEN_RPC_URL: 'https://ropsten.infura.io/',
     ZRX_DECIMALS: 18,