8 files changed, 13 insertions, 9 deletions
diff --git a/packages/order-utils/CHANGELOG.json b/packages/order-utils/CHANGELOG.json
index 6290eee0f..a1f199793 100644
--- a/packages/order-utils/CHANGELOG.json
+++ b/packages/order-utils/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "version": "0.1.0",
+        "changes": [
+            {
+                "note": "Export parseECSignature method",
+                "pr": 684
+            }
+        ]
+    },
+    {
         "timestamp": 1529397769,
         "version": "0.0.7",
         "changes": [
diff --git a/packages/order-utils/package.json b/packages/order-utils/package.json
index bd18b7855..62026f9e6 100644
--- a/packages/order-utils/package.json
+++ b/packages/order-utils/package.json
@@ -18,7 +18,7 @@
         "test": "yarn run_mocha",
         "rebuild_and_test": "run-s build test",
         "test:circleci": "yarn test:coverage",
-        "run_mocha": "mocha --require source-map-support/register lib/test/**/*_test.js --bail --exit",
+        "run_mocha": "mocha --require source-map-support/register --require make-promises-safe lib/test/**/*_test.js --bail --exit",
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
         "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
         "clean": "shx rm -rf lib scripts lib/src/artifacts src/generated_contract_wrappers",
diff --git a/packages/order-utils/src/signature_utils.ts b/packages/order-utils/src/signature_utils.ts
index 44a7203a0..d8703bfda 100644
--- a/packages/order-utils/src/signature_utils.ts
+++ b/packages/order-utils/src/signature_utils.ts
@@ -277,7 +277,7 @@ export function parseECSignature(signature: string): ECSignature {
 }
 
 function hashTrezorPersonalMessage(message: Buffer): Buffer {
-    const prefix = ethUtil.toBuffer('\x19Ethereum Signed Message:\n' + String.fromCharCode(message.length));
+    const prefix = ethUtil.toBuffer('\x19Ethereum Signed Message:\n' + String.fromCharCode(message.byteLength));
     return ethUtil.sha3(Buffer.concat([prefix, message]));
 }
 
diff --git a/packages/order-utils/test/assert_test.ts b/packages/order-utils/test/assert_test.ts
index 4b22ef27d..631971787 100644
--- a/packages/order-utils/test/assert_test.ts
+++ b/packages/order-utils/test/assert_test.ts
@@ -1,5 +1,4 @@
 import * as chai from 'chai';
-import 'make-promises-safe';
 import 'mocha';
 
 import { assert } from '../src/assert';
diff --git a/packages/order-utils/test/exchange_transfer_simulator_test.ts b/packages/order-utils/test/exchange_transfer_simulator_test.ts
index c8fc9fbf3..bed04d879 100644
--- a/packages/order-utils/test/exchange_transfer_simulator_test.ts
+++ b/packages/order-utils/test/exchange_transfer_simulator_test.ts
@@ -2,7 +2,6 @@ import { BlockchainLifecycle, devConstants } from '@0xproject/dev-utils';
 import { ExchangeContractErrs } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
-import 'make-promises-safe';
 
 import { artifacts } from '../src/artifacts';
 import { assetProxyUtils } from '../src/asset_proxy_utils';
diff --git a/packages/order-utils/test/order_hash_test.ts b/packages/order-utils/test/order_hash_test.ts
index 7cf6435c2..0a6be83d0 100644
--- a/packages/order-utils/test/order_hash_test.ts
+++ b/packages/order-utils/test/order_hash_test.ts
@@ -1,7 +1,6 @@
 import { Order } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
-import 'make-promises-safe';
 import 'mocha';
 
 import { constants, orderHashUtils } from '../src';
@@ -13,8 +12,8 @@ const expect = chai.expect;
 
 describe('Order hashing', () => {
     describe('#getOrderHashHex', () => {
-        const expectedOrderHash = '0x367ad7730eb8b5feab8a9c9f47c6fcba77a2d4df125ee6a59cc26ac955710f7e';
-        const fakeExchangeContractAddress = '0xb69e673309512a9d726f87304c6984054f87a93b';
+        const expectedOrderHash = '0x434c6b41e2fb6dfcfe1b45c4492fb03700798e9c1afc6f801ba6203f948c1fa7';
+        const fakeExchangeContractAddress = '0x1dc4c1cefef38a777b15aa20260a54e584b16c48';
         const order: Order = {
             makerAddress: constants.NULL_ADDRESS,
             takerAddress: constants.NULL_ADDRESS,
diff --git a/packages/order-utils/test/remaining_fillable_calculator_test.ts b/packages/order-utils/test/remaining_fillable_calculator_test.ts
index c99d10f3f..a5a3b7fc6 100644
--- a/packages/order-utils/test/remaining_fillable_calculator_test.ts
+++ b/packages/order-utils/test/remaining_fillable_calculator_test.ts
@@ -2,7 +2,6 @@ import { SignedOrder } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
-import 'make-promises-safe';
 import 'mocha';
 
 import { RemainingFillableCalculator } from '../src/remaining_fillable_calculator';
diff --git a/packages/order-utils/test/signature_utils_test.ts b/packages/order-utils/test/signature_utils_test.ts
index 74033104a..5714f9671 100644
--- a/packages/order-utils/test/signature_utils_test.ts
+++ b/packages/order-utils/test/signature_utils_test.ts
@@ -2,7 +2,6 @@ import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import { JSONRPCErrorCallback, JSONRPCRequestPayload } from 'ethereum-types';
 import * as _ from 'lodash';
-import 'make-promises-safe';
 import 'mocha';
 import * as Sinon from 'sinon';