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3 files changed, 7 insertions, 2 deletions

diff --git a/packages/contract-wrappers/test/forwarder_wrapper_test.ts b/packages/contract-wrappers/test/forwarder_wrapper_test.ts
index 9fe39ea9f..730658884 100644
--- a/packages/contract-wrappers/test/forwarder_wrapper_test.ts
+++ b/packages/contract-wrappers/test/forwarder_wrapper_test.ts
@@ -54,7 +54,7 @@ describe('ForwarderWrapper', () => {
             contractWrappers.erc20Proxy.address,
             contractWrappers.erc721Proxy.address,
         );
-        [, makerAddress, takerAddress ] = userAddresses;
+        [, makerAddress, takerAddress] = userAddresses;
         [makerTokenAddress] = tokenUtils.getDummyERC20TokenAddresses();
         takerTokenAddress = contractWrappers.forwarder.etherTokenAddress;
         [makerAssetData, takerAssetData] = [
diff --git a/packages/contract-wrappers/test/revert_validation_test.ts b/packages/contract-wrappers/test/revert_validation_test.ts
index 1d0baf1e3..c5673bb61 100644
--- a/packages/contract-wrappers/test/revert_validation_test.ts
+++ b/packages/contract-wrappers/test/revert_validation_test.ts
@@ -109,7 +109,7 @@ describe('Revert Validation ExchangeWrapper', () => {
                 makerTokenBalance,
             );
             await web3Wrapper.awaitTransactionSuccessAsync(txHash, constants.AWAIT_TRANSACTION_MINED_MS);
-            await expect(
+            return expect(
                 contractWrappers.exchange.fillOrderAsync(signedOrder, takerTokenFillAmount, takerAddress, {
                     shouldValidate: true,
                 }),
diff --git a/packages/contract-wrappers/test/utils/migrate.ts b/packages/contract-wrappers/test/utils/migrate.ts
index adcc22b1a..26412d246 100644
--- a/packages/contract-wrappers/test/utils/migrate.ts
+++ b/packages/contract-wrappers/test/utils/migrate.ts
@@ -4,6 +4,11 @@ import { ContractAddresses } from '@0xproject/types';
 
 import { provider } from './web3_wrapper';
 
+/**
+ * Configures and runs the migrations exactly once. Any subsequent times this is
+ * called, it returns the cached addresses.
+ * @returns The addresses of contracts that were deployed during the migrations.
+ */
 export async function migrateOnceAsync(): Promise<ContractAddresses> {
     const txDefaults = {
         gas: devConstants.GAS_LIMIT,