diff --git a/.soliumrc.json b/.soliumrc.json
index c3d5711fa..4d3acf036 100644
--- a/.soliumrc.json
+++ b/.soliumrc.json
@@ -6,7 +6,7 @@
     "mixedcase": 0,
     "no-experimental": 0,
     "lbrace": 0,
-    "max-len": ["error", 100],
+    "max-len": ["warning", 120],
     "indentation": ["error", 4],
     "quotes": ["error", "double"],
     "arg-overflow": ["warning", 3],
diff --git a/contracts/core/Core.sol b/contracts/core/Core.sol
index 61166ca83..b29b95441 100644
--- a/contracts/core/Core.sol
+++ b/contracts/core/Core.sol
@@ -1,4 +1,4 @@
-/*
+    /*
     Copyright 2018 Set Labs Inc.
 
     Licensed under the Apache License, Version 2.0 (the "License");
@@ -32,6 +32,7 @@ import { CoreIssuanceOrder } from "./extensions/CoreIssuanceOrder.sol";
  * The Core contract acts as a coordinator handling issuing, redeeming, and
  * creating Sets, as well as all collateral flows throughout the system.
  */
+ /* solium-disable-next-line no-empty-blocks */
 contract Core is
     CoreExchangeDispatcher,
     CoreIssuanceOrder,
diff --git a/contracts/core/SetToken.sol b/contracts/core/SetToken.sol
index 7ea04ee04..80e169805 100644
--- a/contracts/core/SetToken.sol
+++ b/contracts/core/SetToken.sol
@@ -156,6 +156,7 @@ contract SetToken is
             );
 
             // Figure out which of the components has the minimum decimal value
+            /* solium-disable-next-line security/no-low-level-calls */
             if (currentComponent.call(bytes4(keccak256("decimals()")))) {
                 currentDecimals = DetailedERC20(currentComponent).decimals();
                 minDecimals = currentDecimals < minDecimals ? currentDecimals : minDecimals;
diff --git a/contracts/core/exchange-wrappers/ZeroExExchangeWrapper.sol b/contracts/core/exchange-wrappers/ZeroExExchangeWrapper.sol
index 6128d0f6c..0db4d62b3 100644
--- a/contracts/core/exchange-wrappers/ZeroExExchangeWrapper.sol
+++ b/contracts/core/exchange-wrappers/ZeroExExchangeWrapper.sol
@@ -58,7 +58,6 @@ contract ZeroExExchangeWrapper
         SET_PROXY = _setProxy;
     }
 
-
     /* ============ Public Functions ============ */
 
 
@@ -82,7 +81,7 @@ contract ZeroExExchangeWrapper
     /* ============ Getters ============ */
 
     /* ============ Private ============ */
-    
+
     function fillZeroExOrder(
         bytes _zeroExOrderData
     )
@@ -95,14 +94,17 @@ contract ZeroExExchangeWrapper
 
         // Ensure the maker token is allowed to be approved to the ZeroEx proxy
 
-
-        ZeroExFillResults.FillResults memory fillResults = 
+        // TODO: Still being handled in Felix's PR
+        /* solium-disable-next-line operator-whitespace */
+        ZeroExFillResults.FillResults memory fillResults =
             ZeroExExchange(ZERO_EX_EXCHANGE).fillOrKillOrder(
                 order,
                 fillAmount,
                 signature
             );
 
+        // Temporary to satisfy Solium
+        return fillResults;
         // Ensure the taker token is allowed to be approved to the TransferProxy
     }
 }
diff --git a/contracts/lib/ERC20Wrapper.sol b/contracts/lib/ERC20Wrapper.sol
index fa902094d..f67bcf12e 100644
--- a/contracts/lib/ERC20Wrapper.sol
+++ b/contracts/lib/ERC20Wrapper.sol
@@ -33,6 +33,7 @@ library ERC20Wrapper {
     // ============ Constants ============
 
     string constant INVALID_RETURN_TRANSFER = "Transferred token does not return null or true on successful transfer.";
+    /* solium-disable-next-line max-len */
     string constant INVALID_RETURN_TRANSFERFROM = "Transferred token does not return null or true on successful transferFrom.";
     string constant INVALID_RETURN_APPROVE = "Approved token does not return null or true on successful approve.";
 
diff --git a/package.json b/package.json
index 5c545bb9d..3713a41be 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,8 @@
     "chain": "yarn clean-chain && ganache-cli --db blockchain --networkId 50 --accounts 20 -l 10000000 -e 1000000 -m 'concert load couple harbor equip island argue ramp clarify fence smart topic'",
     "coverage-setup": "cp -r transpiled/test/* test/. && cp -r transpiled/types/* types/. && cp -r transpiled/utils/* utils/.",
     "coverage-cleanup": "find test -name \\*.js* -type f -delete && find types -name \\*.js* -type f -delete && find utils -name \\*.js* -type f -delete",
-    "coverage": "yarn coverage-setup && ./node_modules/.bin/solidity-coverage && yarn coverage-cleanup"
+    "coverage": "yarn coverage-setup && ./node_modules/.bin/solidity-coverage && yarn coverage-cleanup",
+    "precommit": "lint-staged"
   },
   "repository": "git@github.com:SetProtocol/set-protocol-contracts.git",
   "author": "Felix Feng <felix@setprotocol.com>",
@@ -78,6 +79,8 @@
   },
   "dependencies": {
     "fs-extra": "^5.0.0",
+    "husky": "^0.14.3",
+    "lint-staged": "^7.2.0",
     "openzeppelin-zos": "^1.9.1",
     "sol-trace-set": "^0.0.1",
     "solium": "^1.1.7",
@@ -86,5 +89,24 @@
     "tslint-eslint-rules": "^5.3.1",
     "zeppelin-solidity": "^1.10.0",
     "zos-lib": "^1.0.0"
+  },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged"
+    }
+  },
+  "lint-staged": {
+    "contracts/**/*.sol": [
+      "yarn lint-sol --fix",
+      "git add"
+    ],
+    "test/**/*.ts": [
+      "yarn lint-ts --fix",
+      "git add"
+    ],
+    "utils/**/*.ts": [
+      "yarn lint-ts --fix",
+      "git add"
+    ]
   }
 }
diff --git a/test/contracts/core/exchange-wrappers/lib/zeroExOrderDataHandlerMock.spec.ts b/test/contracts/core/exchange-wrappers/lib/zeroExOrderDataHandlerMock.spec.ts
index 9b67d9ac6..6050dbdb1 100644
--- a/test/contracts/core/exchange-wrappers/lib/zeroExOrderDataHandlerMock.spec.ts
+++ b/test/contracts/core/exchange-wrappers/lib/zeroExOrderDataHandlerMock.spec.ts
@@ -1,8 +1,5 @@
 import * as chai from 'chai';
-import * as _ from 'lodash';
-import * as ethUtil from 'ethereumjs-util';
 
-import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
 
 // Types
@@ -32,7 +29,7 @@ import { BigNumberSetup } from '../../../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
 import {
   expectRevertError,
diff --git a/test/contracts/core/exchange-wrappers/takerWalletWrapper.spec.ts b/test/contracts/core/exchange-wrappers/takerWalletWrapper.spec.ts
index 133c39913..03bacd02e 100644
--- a/test/contracts/core/exchange-wrappers/takerWalletWrapper.spec.ts
+++ b/test/contracts/core/exchange-wrappers/takerWalletWrapper.spec.ts
@@ -1,8 +1,6 @@
 import * as chai from 'chai';
 import * as _ from 'lodash';
-import * as ethUtil from 'ethereumjs-util';
 
-import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
 
 // Types
@@ -24,7 +22,7 @@ import { BigNumberSetup } from '../../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
 import {
   DEFAULT_GAS,
@@ -40,7 +38,6 @@ import {
 contract('TakerWalletWrapper', accounts => {
   const [
     deployerAccount,
-    issuerAccount,
     takerAccount,
     authorizedAddress,
     unauthorizedAddress,
@@ -116,12 +113,14 @@ contract('TakerWalletWrapper', accounts => {
     });
 
     it('approves the tokens for transfer to the transferProxy with unlimited allowance', async () => {
-      const existingAllowance = await componentToken.allowance.callAsync(takerWalletWrapper.address, transferProxy.address);
+      const existingAllowance =
+        await componentToken.allowance.callAsync(takerWalletWrapper.address, transferProxy.address);
 
       await subject();
 
       const expectedNewAllowance = existingAllowance.add(UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
-      const newBalance = await componentToken.allowance.callAsync(takerWalletWrapper.address, transferProxy.address);
+      const newBalance =
+        await componentToken.allowance.callAsync(takerWalletWrapper.address, transferProxy.address);
       expect(newBalance).to.be.bignumber.equal(expectedNewAllowance);
     });
 
@@ -161,12 +160,15 @@ contract('TakerWalletWrapper', accounts => {
       });
 
       it('approves the tokens for transfer to the transferProxy with unlimited allowance', async () => {
-        const existingAllowances = await erc20Wrapper.getTokenAllowances(components, takerWalletWrapper.address, transferProxy.address);
+        const existingAllowances =
+          await erc20Wrapper.getTokenAllowances(components, takerWalletWrapper.address, transferProxy.address);
 
         await subject();
 
-        const expectedNewAllowances = _.map(existingAllowances, allowance => allowance.add(UNLIMITED_ALLOWANCE_IN_BASE_UNITS));
-        const newAllowances = await erc20Wrapper.getTokenAllowances(components, takerWalletWrapper.address, transferProxy.address);
+        const expectedNewAllowances =
+          _.map(existingAllowances, allowance => allowance.add(UNLIMITED_ALLOWANCE_IN_BASE_UNITS));
+        const newAllowances =
+          await erc20Wrapper.getTokenAllowances(components, takerWalletWrapper.address, transferProxy.address);
         expect(newAllowances).to.eql(expectedNewAllowances);
       });
     });
diff --git a/test/contracts/core/exchange-wrappers/zeroExExchangeWrapper.spec.ts b/test/contracts/core/exchange-wrappers/zeroExExchangeWrapper.spec.ts
index 3636b3b4b..9769becc1 100644
--- a/test/contracts/core/exchange-wrappers/zeroExExchangeWrapper.spec.ts
+++ b/test/contracts/core/exchange-wrappers/zeroExExchangeWrapper.spec.ts
@@ -1,36 +1,37 @@
-import * as chai from 'chai';
-import * as _ from 'lodash';
-import * as ethUtil from 'ethereumjs-util';
+/* tslint:disable */
+import * as chai from "chai";
+import * as _ from "lodash";
+import * as ethUtil from "ethereumjs-util";
 
-import * as ABIDecoder from 'abi-decoder';
-import { BigNumber } from 'bignumber.js';
+import * as ABIDecoder from "abi-decoder";
+import { BigNumber } from "bignumber.js";
 
 // Types
-import { Address, Bytes32, Log, UInt } from '../../../../types/common.js';
-import { ZeroExOrderHeader, ZeroExOrder } from '../../../../types/zeroEx';
+import { Address, Bytes32, Log, UInt } from "../../../../types/common.js";
+import { ZeroExOrderHeader, ZeroExOrder } from "../../../../types/zeroEx";
 
 // Contract types
-import { ZeroExExchangeWrapperContract } from '../../../../types/generated/zero_ex_exchange_wrapper';
+import { ZeroExExchangeWrapperContract } from "../../../../types/generated/zero_ex_exchange_wrapper";
 
 // Artifacts
-const ZeroExExchangeWrapper = artifacts.require('ZeroExExchangeWrapper');
+const ZeroExExchangeWrapper = artifacts.require("ZeroExExchangeWrapper");
 
 import {
   createZeroExOrder,
-} from '../../../../utils/zeroExExchangeWrapper';
+} from "../../../../utils/zeroExExchangeWrapper";
 
 // Testing Set up
-import { BigNumberSetup } from '../../../../utils/bigNumberSetup';
-import ChaiSetup from '../../../../utils/chaiSetup';
+import { BigNumberSetup } from "../../../../utils/bigNumberSetup";
+import ChaiSetup from "../../../../utils/chaiSetup";
 BigNumberSetup.configure();
 ChaiSetup.configure();
 const { expect, assert } = chai;
 
 import {
   DEFAULT_GAS,
-} from '../../../../utils/constants';
+} from "../../../../utils/constants";
 
-contract('ZeroExExchangeWrapper', accounts => {
+contract("ZeroExExchangeWrapper", (accounts) => {
   const [ownerAccount, takerAddress, feeRecipientAddress, senderAddress] = accounts;
   let zeroExExchangeWrapper: ZeroExExchangeWrapperContract;
 
@@ -45,7 +46,7 @@ contract('ZeroExExchangeWrapper', accounts => {
     );
   });
 
-  describe('#exchange', async () => {
+  describe("#exchange", async () => {
     // Deploy a mock 0x exchange
     // Deploy a mock 0x proxy
   });
diff --git a/test/contracts/core/extensions/coreAccounting.spec.ts b/test/contracts/core/extensions/coreAccounting.spec.ts
index 8cf89276b..49d98a0d5 100644
--- a/test/contracts/core/extensions/coreAccounting.spec.ts
+++ b/test/contracts/core/extensions/coreAccounting.spec.ts
@@ -1,16 +1,13 @@
 import * as chai from 'chai';
 import * as _ from 'lodash';
 
-import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
 
 // Types
 import { Address } from '../../../../types/common.js';
 
 // Contract types
-import { AuthorizableContract } from '../../../../types/generated/authorizable';
 import { CoreContract } from '../../../../types/generated/core';
-import { SetTokenContract } from '../../../../types/generated/set_token';
 import { SetTokenFactoryContract } from '../../../../types/generated/set_token_factory';
 import { StandardTokenMockContract } from '../../../../types/generated/standard_token_mock';
 import { TransferProxyContract } from '../../../../types/generated/transfer_proxy';
@@ -25,7 +22,7 @@ import { BigNumberSetup } from '../../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
 import {
   assertTokenBalance,
@@ -41,7 +38,6 @@ contract('CoreAccounting', accounts => {
   const [
     ownerAccount,
     otherAccount,
-    unauthorizedAccount,
   ] = accounts;
 
   let core: CoreContract;
@@ -97,7 +93,7 @@ contract('CoreAccounting', accounts => {
       await subject();
 
       const newVaultBalance = existingVaultTokenBalance.add(amountToDeposit);
-      assertTokenBalance(mockToken, amountToDeposit, vault.address);
+      assertTokenBalance(mockToken, newVaultBalance, vault.address);
     });
 
     it('increments the vault balance of the token of the owner by the correct amount', async () => {
@@ -253,8 +249,8 @@ contract('CoreAccounting', accounts => {
     });
 
     afterEach(async () => {
-      tokenAddresses = null;
-      amountsToDeposit = null;
+      tokenAddresses = undefined;
+      amountsToDeposit = undefined;
     });
 
     let tokenAddresses: Address[];
@@ -389,8 +385,8 @@ contract('CoreAccounting', accounts => {
     });
 
     afterEach(async () => {
-      tokenAddresses = null;
-      amountsToWithdraw = null;
+      tokenAddresses = undefined;
+      amountsToWithdraw = undefined;
     });
 
     let tokenAddresses: Address[];
diff --git a/test/contracts/core/extensions/coreExchangeDispatcher.spec.ts b/test/contracts/core/extensions/coreExchangeDispatcher.spec.ts
index 744c97edc..70c878d7d 100644
--- a/test/contracts/core/extensions/coreExchangeDispatcher.spec.ts
+++ b/test/contracts/core/extensions/coreExchangeDispatcher.spec.ts
@@ -1,12 +1,10 @@
 import * as chai from 'chai';
-import * as _ from 'lodash';
 
 import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
-import { ether } from '../../../../utils/units';
 
 // Types
-import { Address, Log, UInt } from '../../../../types/common.js';
+import { Address, Log } from '../../../../types/common.js';
 
 // Contract types
 import { CoreContract } from '../../../../types/generated/core';
@@ -16,7 +14,6 @@ const Core = artifacts.require('Core');
 
 // Core wrapper
 import { CoreWrapper } from '../../../../utils/coreWrapper';
-import { ERC20Wrapper } from '../../../../utils/erc20Wrapper';
 
 // Testing Set up
 import { BigNumberSetup } from '../../../../utils/bigNumberSetup';
@@ -64,12 +61,12 @@ contract('CoreExchangeDispatcher', accounts => {
 
   describe('#registerExchange', async () => {
     let subjectCaller: Address;
-    let subjectExchangeId: UInt;
+    let subjectExchangeId: BigNumber;
     let subjectExchangeAddress: Address;
 
     beforeEach(async () => {
       subjectCaller = ownerAccount;
-      subjectExchangeId = EXCHANGES.ZERO_EX;
+      subjectExchangeId = new BigNumber(EXCHANGES.ZERO_EX);
       subjectExchangeAddress = zeroExWrapperAddress;
     });
 
@@ -95,7 +92,7 @@ contract('CoreExchangeDispatcher', accounts => {
       const expectedLogs: Log[] = [
         ExchangeRegistered(
           core.address,
-          new BigNumber(subjectExchangeId),
+          subjectExchangeId,
           subjectExchangeAddress,
         ),
       ];
diff --git a/test/contracts/core/extensions/coreFactory.spec.ts b/test/contracts/core/extensions/coreFactory.spec.ts
index b1cd6ae7d..70998ac53 100644
--- a/test/contracts/core/extensions/coreFactory.spec.ts
+++ b/test/contracts/core/extensions/coreFactory.spec.ts
@@ -1,16 +1,13 @@
 import * as chai from 'chai';
-import * as _ from 'lodash';
 
 import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
-import { ether } from '../../../../utils/units';
 
 // Types
 import { Address, Log } from '../../../../types/common.js';
 
 // Contract types
 import { CoreContract } from '../../../../types/generated/core';
-import { SetTokenContract } from '../../../../types/generated/set_token';
 import { SetTokenFactoryContract } from '../../../../types/generated/set_token_factory';
 import { StandardTokenMockContract } from '../../../../types/generated/standard_token_mock';
 
@@ -50,7 +47,6 @@ import {
 contract('CoreFactory', accounts => {
   const [
     ownerAccount,
-    otherAccount,
   ] = accounts;
 
   let core: CoreContract;
diff --git a/test/contracts/core/extensions/coreInternal.spec.ts b/test/contracts/core/extensions/coreInternal.spec.ts
index fa0eb2ae2..b48bd763f 100644
--- a/test/contracts/core/extensions/coreInternal.spec.ts
+++ b/test/contracts/core/extensions/coreInternal.spec.ts
@@ -2,8 +2,6 @@ import * as chai from 'chai';
 import * as _ from 'lodash';
 
 import * as ABIDecoder from 'abi-decoder';
-import { BigNumber } from 'bignumber.js';
-import { ether } from '../../../../utils/units';
 
 // Types
 import { Address } from '../../../../types/common.js';
@@ -12,7 +10,6 @@ import { Address } from '../../../../types/common.js';
 import { CoreContract } from '../../../../types/generated/core';
 import { SetTokenContract } from '../../../../types/generated/set_token';
 import { SetTokenFactoryContract } from '../../../../types/generated/set_token_factory';
-import { StandardTokenMockContract } from '../../../../types/generated/standard_token_mock';
 import { TransferProxyContract } from '../../../../types/generated/transfer_proxy';
 import { VaultContract } from '../../../../types/generated/vault';
 
@@ -223,7 +220,6 @@ contract('CoreInternal', accounts => {
 
   describe('#disableSet', async () => {
     let setToken: SetTokenContract;
-    let setToken2: SetTokenContract;
     let subjectCaller: Address;
 
     beforeEach(async () => {
@@ -235,14 +231,17 @@ contract('CoreInternal', accounts => {
       const components = await erc20Wrapper.deployTokensAsync(2, ownerAccount);
       const componentAddresses = _.map(components, token => token.address);
       const componentUnits = _.map(components, () => STANDARD_NATURAL_UNIT); // Multiple of naturalUnit
-      setToken = await coreWrapper.createSetTokenAsync(
+
+      // Deploy another Set for branch coverage
+      await coreWrapper.createSetTokenAsync(
         core,
         setTokenFactory.address,
         componentAddresses,
         componentUnits,
         STANDARD_NATURAL_UNIT,
       );
-      setToken2 = await coreWrapper.createSetTokenAsync(
+
+      setToken = await coreWrapper.createSetTokenAsync(
         core,
         setTokenFactory.address,
         componentAddresses,
@@ -255,7 +254,7 @@ contract('CoreInternal', accounts => {
 
     async function subject(): Promise<string> {
       return core.disableSet.sendTransactionAsync(
-        setToken2.address,
+        setToken.address,
         { from: subjectCaller },
       );
     }
@@ -263,7 +262,7 @@ contract('CoreInternal', accounts => {
     it('disables set token address correctly', async () => {
       await subject();
 
-      const isSetValid = await core.validSets.callAsync(setToken2.address);
+      const isSetValid = await core.validSets.callAsync(setToken.address);
       expect(isSetValid).to.be.false;
     });
 
@@ -271,7 +270,7 @@ contract('CoreInternal', accounts => {
       await subject();
 
       const approvedSetTokens = await core.setTokens.callAsync();
-      expect(approvedSetTokens).to.not.include(setToken2.address);
+      expect(approvedSetTokens).to.not.include(setToken.address);
       expect(approvedSetTokens.length).to.equal(1);
     });
 
diff --git a/test/contracts/core/extensions/coreIssuance.spec.ts b/test/contracts/core/extensions/coreIssuance.spec.ts
index 8a01783e2..e5679f12f 100644
--- a/test/contracts/core/extensions/coreIssuance.spec.ts
+++ b/test/contracts/core/extensions/coreIssuance.spec.ts
@@ -28,7 +28,7 @@ import { BigNumberSetup } from '../../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
 import {
   assertLogEquivalence,
@@ -55,7 +55,6 @@ contract('CoreIssuance', accounts => {
   const [
     ownerAccount,
     otherAccount,
-    unauthorizedAccount,
   ] = accounts;
 
   let core: CoreContract;
@@ -115,7 +114,7 @@ contract('CoreIssuance', accounts => {
       return core.issue.sendTransactionAsync(
         subjectSetToIssue,
         subjectQuantityToIssue,
-        { from: ownerAccount },
+        { from: subjectCaller },
       );
     }
 
@@ -240,8 +239,6 @@ contract('CoreIssuance', accounts => {
       });
 
       it('updates the vault balance of the component for the user by the correct amount', async () => {
-        const existingVaultBalance = await vault.balances.callAsync(alreadyDepositedComponent.address, ownerAccount);
-
         await subject();
 
         const requiredQuantityToIssue = subjectQuantityToIssue.div(naturalUnit).mul(componentUnit);
@@ -384,7 +381,7 @@ contract('CoreIssuance', accounts => {
       return core.redeem.sendTransactionAsync(
         subjectSetToRedeem,
         subjectQuantityToRedeem,
-        { from: ownerAccount },
+        { from: subjectCaller },
       );
     }
 
@@ -514,12 +511,13 @@ contract('CoreIssuance', accounts => {
         subjectSetToRedeem,
         subjectQuantityToRedeem,
         subjectComponentsToWithdrawMask,
-        { from: ownerAccount },
+        { from: subjectCaller },
       );
     }
 
     it('decrements the balance of the tokens owned by set in vault', async () => {
-      const existingVaultBalances = await coreWrapper.getVaultBalancesForTokensForOwner(components, vault, subjectSetToRedeem);
+      const existingVaultBalances =
+        await coreWrapper.getVaultBalancesForTokensForOwner(components, vault, subjectSetToRedeem);
 
       await subject();
 
@@ -527,7 +525,8 @@ contract('CoreIssuance', accounts => {
         const requiredQuantityToRedeem = subjectQuantityToRedeem.div(naturalUnit).mul(componentUnits[idx]);
         return existingVaultBalances[idx].sub(requiredQuantityToRedeem);
       });
-      const newVaultBalances = await coreWrapper.getVaultBalancesForTokensForOwner(components, vault, subjectSetToRedeem);
+      const newVaultBalances =
+        await coreWrapper.getVaultBalancesForTokensForOwner(components, vault, subjectSetToRedeem);
       expect(newVaultBalances).to.eql(expectedVaultBalances);
     });
 
@@ -575,7 +574,8 @@ contract('CoreIssuance', accounts => {
 
       it('increments the balances of the remaining tokens back to the user in vault', async () => {
         const remainingComponents = _.tail(components);
-        const existingBalances = await coreWrapper.getVaultBalancesForTokensForOwner(remainingComponents, vault, subjectSetToRedeem);
+        const existingBalances =
+          await coreWrapper.getVaultBalancesForTokensForOwner(remainingComponents, vault, subjectSetToRedeem);
 
         await subject();
 
@@ -583,7 +583,8 @@ contract('CoreIssuance', accounts => {
           const requiredQuantityToRedeem = subjectQuantityToRedeem.div(naturalUnit).mul(componentUnits[idx]);
           return existingBalances[idx].sub(requiredQuantityToRedeem);
         });
-        const newVaultBalances = await coreWrapper.getVaultBalancesForTokensForOwner(remainingComponents, vault, subjectSetToRedeem);
+        const newVaultBalances =
+          await coreWrapper.getVaultBalancesForTokensForOwner(remainingComponents, vault, subjectSetToRedeem);
         expect(newVaultBalances).to.eql(expectedVaultBalances);
       });
     });
@@ -594,7 +595,8 @@ contract('CoreIssuance', accounts => {
       });
 
       it('increments the balances of the tokens back to the user in vault', async () => {
-        const existingVaultBalances = await coreWrapper.getVaultBalancesForTokensForOwner(components, vault, ownerAccount);
+        const existingVaultBalances =
+          await coreWrapper.getVaultBalancesForTokensForOwner(components, vault, ownerAccount);
 
         await subject();
 
@@ -602,7 +604,8 @@ contract('CoreIssuance', accounts => {
           const requiredQuantityToRedeem = subjectQuantityToRedeem.div(naturalUnit).mul(componentUnits[idx]);
           return existingVaultBalances[idx].add(requiredQuantityToRedeem);
         });
-        const newVaultBalances = await coreWrapper.getVaultBalancesForTokensForOwner(components, vault, ownerAccount);
+        const newVaultBalances =
+          await coreWrapper.getVaultBalancesForTokensForOwner(components, vault, ownerAccount);
         expect(newVaultBalances).to.eql(expectedVaultBalances);
       });
     });
diff --git a/test/contracts/core/extensions/coreIssuanceOrder.spec.ts b/test/contracts/core/extensions/coreIssuanceOrder.spec.ts
index 50dfe0786..945794dc0 100644
--- a/test/contracts/core/extensions/coreIssuanceOrder.spec.ts
+++ b/test/contracts/core/extensions/coreIssuanceOrder.spec.ts
@@ -46,11 +46,7 @@ import { BigNumberSetup } from '../../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
-
-import {
-  IssuanceComponentDeposited,
-} from '../../../../utils/contract_logs/core';
+const { expect } = chai;
 
 import {
   assertTokenBalance,
@@ -72,8 +68,6 @@ contract('CoreIssuanceOrder', accounts => {
     makerAccount,
     signerAccount,
     relayerAccount,
-    mockSetTokenAccount,
-    mockTokenAccount,
   ] = accounts;
 
   let core: CoreContract;
@@ -120,12 +114,9 @@ contract('CoreIssuanceOrder', accounts => {
 
     let setAddress: Address;
     let makerAddress: Address;
-    let signerAddress: Address;
     let relayerAddress: Address;
     let componentAddresses: Address[];
     let defaultComponentAmounts: BigNumber[];
-    let requiredComponents: Address[];
-    let requiredComponentAmounts: BigNumber[];
     let orderQuantity: BigNumber;
     let makerToken: StandardTokenMockContract;
     let relayerToken: StandardTokenMockContract;
@@ -144,9 +135,19 @@ contract('CoreIssuanceOrder', accounts => {
       await erc20Wrapper.approveTransfersAsync(deployedTokens, transferProxy.address, takerAccount);
 
       // Give taker all tokens
-      await erc20Wrapper.transferTokensAsync(deployedTokens, takerAccount, DEPLOYED_TOKEN_QUANTITY.div(2), ownerAccount);
+      await erc20Wrapper.transferTokensAsync(
+        deployedTokens,
+        takerAccount,
+        DEPLOYED_TOKEN_QUANTITY.div(2),
+        ownerAccount
+      );
       // Give maker their maker and relayer tokens
-      await erc20Wrapper.transferTokensAsync(deployedTokens.slice(2, 4), signerAccount, DEPLOYED_TOKEN_QUANTITY.div(2), ownerAccount);
+      await erc20Wrapper.transferTokensAsync(
+        deployedTokens.slice(2, 4),
+        signerAccount,
+        DEPLOYED_TOKEN_QUANTITY.div(2),
+        ownerAccount
+      );
 
       const componentTokens = deployedTokens.slice(0, 2);
       componentAddresses = _.map(componentTokens, token => token.address);
@@ -168,10 +169,10 @@ contract('CoreIssuanceOrder', accounts => {
 
       issuanceOrderParams = await generateFillOrderParameters(
         setAddress || setToken.address,
-        signerAddress || signerAccount,
+        signerAccount,
         makerAddress || signerAccount,
-        requiredComponents || componentAddresses,
-        requiredComponentAmounts || defaultComponentAmounts,
+        componentAddresses,
+        defaultComponentAmounts,
         makerToken.address,
         relayerAddress,
         relayerToken.address,
@@ -216,7 +217,6 @@ contract('CoreIssuanceOrder', accounts => {
       await subject();
 
       const fullMakerTokenAmount = ether(10);
-      const newBalance = await makerToken.balanceOf.callAsync(signerAccount);
       const expectedNewBalance = existingBalance.sub(fullMakerTokenAmount);
       await assertTokenBalance(makerToken, expectedNewBalance, signerAccount);
     });
@@ -233,7 +233,6 @@ contract('CoreIssuanceOrder', accounts => {
     });
 
     it('transfers the fees to the relayer', async () => {
-      const existingBalance = await relayerToken.balanceOf.callAsync(relayerAddress);
       await assertTokenBalance(relayerToken, ZERO, relayerAddress);
 
       await subject();
@@ -293,7 +292,6 @@ contract('CoreIssuanceOrder', accounts => {
         await subject();
 
         const partialMakerTokenAmount = ether(10).mul(subjectQuantityToIssue).div(ether(4));
-        const newBalance = await makerToken.balanceOf.callAsync(signerAccount);
         const expectedNewBalance = existingBalance.sub(partialMakerTokenAmount);
         await assertTokenBalance(makerToken, expectedNewBalance, signerAccount);
       });
@@ -310,7 +308,6 @@ contract('CoreIssuanceOrder', accounts => {
       });
 
       it('transfers the partial fees to the relayer', async () => {
-        const existingBalance = await relayerToken.balanceOf.callAsync(relayerAddress);
         await assertTokenBalance(relayerToken, ZERO, relayerAddress);
 
         await subject();
@@ -537,17 +534,11 @@ contract('CoreIssuanceOrder', accounts => {
   describe('#cancelOrder', async () => {
     let subjectCaller: Address;
     let subjectQuantityToCancel: BigNumber;
-    let subjectExchangeOrdersData: Bytes32;
 
     let setToken: SetTokenContract;
-    let setAddress: Address;
-    let makerAddress: Address;
-    let signerAddress: Address;
     let relayerAddress: Address;
     let componentAddresses: Address[];
     let defaultComponentAmounts: BigNumber[];
-    let requiredComponents: Address[];
-    let requiredComponentAmounts: BigNumber[];
     let orderQuantity: BigNumber;
     let makerTokenAmount: BigNumber;
     let makerToken: StandardTokenMockContract;
@@ -558,11 +549,11 @@ contract('CoreIssuanceOrder', accounts => {
 
     beforeEach(async () => {
       const naturalUnit = ether(2);
-      signerAddress = signerAccount;
       relayerAddress = relayerAccount;
 
-      const components = await erc20Wrapper.deployTokensAsync(4, signerAddress); //For current purposes issue to maker/signer
-      await erc20Wrapper.approveTransfersAsync(components, transferProxy.address, signerAddress);
+      // For current purposes issue to maker/signer
+      const components = await erc20Wrapper.deployTokensAsync(4, signerAccount);
+      await erc20Wrapper.approveTransfersAsync(components, transferProxy.address, signerAccount);
 
       componentAddresses = _.map(components, token => token.address);
       const componentUnits = _.map(components, () => ether(4)); // Multiple of naturalUnit
@@ -574,7 +565,8 @@ contract('CoreIssuanceOrder', accounts => {
         naturalUnit,
       );
 
-      defaultComponentAmounts = _.map(componentUnits, unit => unit.mul(ether(4))); //ether(4) for now but will be orderQuantity
+      // ether(4) for now but will be orderQuantity
+      defaultComponentAmounts = _.map(componentUnits, unit => unit.mul(ether(4)));
       await coreWrapper.registerDefaultExchanges(core);
 
       makerToken = components[2];
@@ -583,11 +575,11 @@ contract('CoreIssuanceOrder', accounts => {
       subjectCaller = signerAccount;
       subjectQuantityToCancel = ether(2);
       issuanceOrderParams = await generateFillOrderParameters(
-        setAddress || setToken.address,
-        signerAddress || signerAccount,
-        makerAddress || signerAccount,
-        requiredComponents || componentAddresses,
-        requiredComponentAmounts || defaultComponentAmounts,
+        setToken.address,
+        signerAccount,
+        signerAccount,
+        componentAddresses,
+        defaultComponentAmounts,
         makerToken.address,
         relayerAddress,
         relayerToken.address,
@@ -697,7 +689,7 @@ contract('CoreIssuanceOrder', accounts => {
       });
     });
 
-    describe('when the Set Token quantity in Issuance Order is not a multiple of the natural unit of the set', async () => {
+    describe('when Set Token quantity in IssuanceOrder not a multiple of natural unit of set', async () => {
       before(async () => {
         orderQuantity = ether(5);
       });
diff --git a/test/contracts/core/lib/orderLibrary.spec.ts b/test/contracts/core/lib/orderLibrary.spec.ts
index e30efc128..74fcc3cfa 100644
--- a/test/contracts/core/lib/orderLibrary.spec.ts
+++ b/test/contracts/core/lib/orderLibrary.spec.ts
@@ -1,7 +1,5 @@
 import * as chai from 'chai';
-import * as _ from 'lodash';
 
-import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
 import { ether } from '../../../../utils/units';
 
@@ -11,9 +9,6 @@ import { Address } from '../../../../types/common.js';
 // Contract types
 import { OrderLibraryMockContract } from '../../../../types/generated/order_library_mock';
 
-// Artifacts
-const OrderLibraryMock = artifacts.require('OrderLibraryMock');
-
 // Core wrapper
 import { CoreWrapper } from '../../../../utils/coreWrapper';
 import {
@@ -25,11 +20,7 @@ import { BigNumberSetup } from '../../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
-
-import {
-  expectRevertError,
-} from '../../../../utils/tokenAssertions';
+const { expect } = chai;
 
 import {
   ZERO,
diff --git a/test/contracts/core/setToken.spec.ts b/test/contracts/core/setToken.spec.ts
index 93760dd27..00bfb5a43 100644
--- a/test/contracts/core/setToken.spec.ts
+++ b/test/contracts/core/setToken.spec.ts
@@ -1,6 +1,5 @@
 import * as chai from 'chai';
 import * as _ from 'lodash';
-import * as ethUtil from 'ethereumjs-util';
 
 import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
@@ -11,14 +10,11 @@ import { Address } from '../../../types/common.js';
 
 // Contract types
 import { StandardTokenMockContract } from '../../../types/generated/standard_token_mock';
-import { StandardTokenWithFeeMockContract } from '../../../types/generated/standard_token_with_fee_mock';
 import { SetTokenFactoryContract } from '../../../types/generated/set_token_factory';
 import { SetTokenContract } from '../../../types/generated/set_token';
 
 // Artifacts
 const SetToken = artifacts.require('SetToken');
-const StandardTokenMock = artifacts.require('StandardTokenMock');
-const StandardTokenWithFeeMock = artifacts.require('StandardTokenWithFeeMock');
 
 // Core wrapper
 import { CoreWrapper } from '../../../utils/coreWrapper';
@@ -29,9 +25,8 @@ import { BigNumberSetup } from '../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
-import { getFormattedLogsFromTxHash } from '../../../utils/logs';
 import { assertTokenBalance, expectRevertError } from '../../../utils/tokenAssertions';
 
 import {
diff --git a/test/contracts/core/setTokenFactory.spec.ts b/test/contracts/core/setTokenFactory.spec.ts
index cb70353b0..b941543cb 100644
--- a/test/contracts/core/setTokenFactory.spec.ts
+++ b/test/contracts/core/setTokenFactory.spec.ts
@@ -1,5 +1,4 @@
 import * as chai from 'chai';
-import * as _ from 'lodash';
 
 import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
@@ -8,7 +7,6 @@ import { BigNumber } from 'bignumber.js';
 import { Address } from '../../../types/common.js';
 
 // Contract types
-import { StandardTokenContract } from '../../../types/generated/standard_token';
 import { StandardTokenMockContract } from '../../../types/generated/standard_token_mock';
 import { SetTokenFactoryContract } from '../../../types/generated/set_token_factory';
 
@@ -24,7 +22,7 @@ import { BigNumberSetup } from '../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
 import { expectRevertError } from '../../../utils/tokenAssertions';
 import { ZERO } from '../../../utils/constants';
diff --git a/test/contracts/core/transferProxy.spec.ts b/test/contracts/core/transferProxy.spec.ts
index 3682ca979..19a8bcb9f 100644
--- a/test/contracts/core/transferProxy.spec.ts
+++ b/test/contracts/core/transferProxy.spec.ts
@@ -1,5 +1,4 @@
 import * as chai from 'chai';
-import * as _ from 'lodash';
 
 import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
@@ -10,7 +9,6 @@ import { Address } from '../../../types/common.js';
 // Contract types
 import { InvalidReturnTokenMockContract } from '../../../types/generated/invalid_return_token_mock';
 import { NoXferReturnTokenMockContract } from '../../../types/generated/no_xfer_return_token_mock';
-import { StandardTokenContract } from '../../../types/generated/standard_token';
 import { StandardTokenMockContract } from '../../../types/generated/standard_token_mock';
 import { StandardTokenWithFeeMockContract } from '../../../types/generated/standard_token_with_fee_mock';
 import { TransferProxyContract } from '../../../types/generated/transfer_proxy';
@@ -27,7 +25,7 @@ import { BigNumberSetup } from '../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
 import {
   assertTokenBalance,
diff --git a/test/contracts/core/vault.spec.ts b/test/contracts/core/vault.spec.ts
index 0ea2cd9fe..74226de82 100644
--- a/test/contracts/core/vault.spec.ts
+++ b/test/contracts/core/vault.spec.ts
@@ -1,14 +1,11 @@
 import * as chai from 'chai';
-import * as _ from 'lodash';
 
-import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
 
 // Types
 import { Address } from '../../../types/common.js';
 
 // Contract types
-import { BadTokenMockContract } from '../../../types/generated/bad_token_mock';
 import { InvalidReturnTokenMockContract } from '../../../types/generated/invalid_return_token_mock';
 import { NoXferReturnTokenMockContract } from '../../../types/generated/no_xfer_return_token_mock';
 import { StandardTokenMockContract } from '../../../types/generated/standard_token_mock';
@@ -20,7 +17,7 @@ import { BigNumberSetup } from '../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
 import { CoreWrapper } from '../../../utils/coreWrapper';
 import { ERC20Wrapper } from '../../../utils/erc20Wrapper';
@@ -66,7 +63,7 @@ contract('Vault', accounts => {
       subjectAmountToWithdraw = DEPLOYED_TOKEN_QUANTITY;
       subjectCaller = authorizedAccount;
       subjectReceiver = ownerAccount;
-      subjectTokenAddress = null;
+      subjectTokenAddress = undefined;
     });
 
     async function subject(): Promise<string> {
@@ -123,7 +120,7 @@ contract('Vault', accounts => {
       });
     });
 
-    describe('when the receiver is not null address', async () => {
+    describe('when the receiver is not undefined address', async () => {
       beforeEach(async () => {
         subjectReceiver = NULL_ADDRESS;
       });
@@ -341,7 +338,7 @@ contract('Vault', accounts => {
 
     afterEach(async () => {
       subjectCaller = ownerAccount;
-      subjectTokenAddress = null;
+      subjectTokenAddress = undefined;
     });
 
     async function subject(): Promise<BigNumber> {
diff --git a/test/contracts/lib/authorizable.spec.ts b/test/contracts/lib/authorizable.spec.ts
index f48a34b93..5c2038075 100644
--- a/test/contracts/lib/authorizable.spec.ts
+++ b/test/contracts/lib/authorizable.spec.ts
@@ -1,5 +1,4 @@
 import * as chai from 'chai';
-import * as _ from 'lodash';
 
 import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
@@ -21,7 +20,7 @@ import { BigNumberSetup } from '../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
 import {
   assertLogEquivalence,
@@ -49,7 +48,6 @@ contract('Authorizable', accounts => {
     authAccount1,
     authAccount2,
   ] = accounts;
-  const TX_DEFAULTS = { from: ownerAccount, gas: 7000000 };
 
   let authorizableContract: AuthorizableContract;
   const coreWrapper = new CoreWrapper(ownerAccount, ownerAccount);
diff --git a/test/contracts/lib/commonMath.spec.ts b/test/contracts/lib/commonMath.spec.ts
index c7521cd4b..aea997142 100644
--- a/test/contracts/lib/commonMath.spec.ts
+++ b/test/contracts/lib/commonMath.spec.ts
@@ -1,7 +1,5 @@
 import * as chai from 'chai';
-import * as _ from 'lodash';
 
-import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
 
 // Types
@@ -18,7 +16,7 @@ import { BigNumberSetup } from '../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
 
 contract('CommonMathMock', accounts => {
@@ -36,14 +34,15 @@ contract('CommonMathMock', accounts => {
 
     async function subject(): Promise<BigNumber> {
       return commonMathLibrary.testMaxUInt256.callAsync(
-        { from: ownerAccount },
+        { from: caller },
       );
     }
 
     it('returns the max allowed integer', async () => {
       const maxUInt256 = await subject();
 
-      const expectedMaxUInt256 = new BigNumber('1.15792089237316195423570985008687907853269984665640564039457584007913129639935e+77');
+      const expectedMaxUInt256 =
+        new BigNumber('1.15792089237316195423570985008687907853269984665640564039457584007913129639935e+77');
       expect(maxUInt256).to.be.bignumber.equal(expectedMaxUInt256);
     });
   });
diff --git a/test/contracts/lib/erc20Wrapper.spec.ts b/test/contracts/lib/erc20Wrapper.spec.ts
index 3bf1f9636..0b9f07a54 100644
--- a/test/contracts/lib/erc20Wrapper.spec.ts
+++ b/test/contracts/lib/erc20Wrapper.spec.ts
@@ -1,7 +1,5 @@
 import * as chai from 'chai';
-import * as _ from 'lodash';
 
-import * as ABIDecoder from 'abi-decoder';
 import { BigNumber } from 'bignumber.js';
 import { ether } from '../../../utils/units';
 
@@ -22,7 +20,7 @@ import { BigNumberSetup } from '../../../utils/bigNumberSetup';
 import ChaiSetup from '../../../utils/chaiSetup';
 BigNumberSetup.configure();
 ChaiSetup.configure();
-const { expect, assert } = chai;
+const { expect } = chai;
 
 import {
   expectRevertError
@@ -64,7 +62,7 @@ contract('ERC20WrapperMock', accounts => {
         subjectTokenAddress,
         spenderAccount,
         subjectTransferAllowance,
-        { from: ownerAccount },
+        { from: caller },
       );
     }
 
@@ -81,7 +79,7 @@ contract('ERC20WrapperMock', accounts => {
         erc20WrapperLibrary.address,
         spenderAccount
       );
-      expect(newSpenderAllowance).to.bignumber.equal(subjectTransferAllowance);
+      expect(newSpenderAllowance).to.bignumber.equal(expectedNewAllowance);
     });
 
     describe('#when the token has an invalid return', async () => {
@@ -112,7 +110,7 @@ contract('ERC20WrapperMock', accounts => {
         token.address,
         ownerAccount,
         spenderAccount,
-        { from: ownerAccount },
+        { from: caller },
       );
     }
 
@@ -143,20 +141,36 @@ contract('ERC20WrapperMock', accounts => {
     it('approves the spender on behalf of the calling contract', async () => {
       await subject();
 
-      const allowance = await erc20WrapperLibrary.allowance.callAsync(token.address, erc20WrapperLibrary.address, spenderAccount, { from: ownerAccount });
+      const allowance =
+        await erc20WrapperLibrary.allowance.callAsync(
+          token.address,
+          erc20WrapperLibrary.address,
+          spenderAccount,
+          { from: ownerAccount }
+        );
       expect(allowance).to.bignumber.equal(UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
     });
 
     describe('#when the token has already been approved', async () => {
 
       beforeEach(async () => {
-        await erc20WrapperLibrary.approve.sendTransactionAsync(token.address, spenderAccount, ether(11), {from: ownerAccount});
+        await erc20WrapperLibrary.approve.sendTransactionAsync(
+          token.address,
+          spenderAccount,
+          ether(11),
+          { from: ownerAccount });
       });
 
       it('should not alter the allowance', async () => {
         await subject();
 
-        const allowance = await erc20WrapperLibrary.allowance.callAsync(token.address, erc20WrapperLibrary.address, spenderAccount, { from: ownerAccount });
+        const allowance =
+          await erc20WrapperLibrary.allowance.callAsync(
+            token.address,
+            erc20WrapperLibrary.address,
+            spenderAccount,
+            { from: ownerAccount }
+          );
         expect(allowance).to.bignumber.equal(ether(11));
       });
     });
diff --git a/utils/contract_logs/authorizable.ts b/utils/contract_logs/authorizable.ts
index 78b05de2f..0db4bbf9c 100644
--- a/utils/contract_logs/authorizable.ts
+++ b/utils/contract_logs/authorizable.ts
@@ -1,6 +1,3 @@
-import * as _ from 'lodash';
-import * as LogUtils from '../logs';
-
 import { Address, Log } from '../../types/common';
 
 
diff --git a/utils/contract_logs/core.ts b/utils/contract_logs/core.ts
index ce83743ca..3d4ba2330 100644
--- a/utils/contract_logs/core.ts
+++ b/utils/contract_logs/core.ts
@@ -1,8 +1,6 @@
-import * as _ from 'lodash';
-import * as LogUtils from '../logs';
 import { BigNumber } from 'bignumber.js';
 
-import { Address, Log, UInt } from '../../types/common';
+import { Address, Log } from '../../types/common';
 
 interface CreateLogArgs {
    _setTokenAddress: Address;
@@ -58,7 +56,7 @@ export function IssuanceComponentDeposited(
 
 export function ExchangeRegistered(
   _coreAddress: Address,
-  _exchangeId: UInt,
+  _exchangeId: BigNumber,
   _exchange: Address,
 ): Log {
   return {
diff --git a/utils/contract_logs/coreIssuanceOrder.ts b/utils/contract_logs/coreIssuanceOrder.ts
index 07e175cdf..1588be5cf 100644
--- a/utils/contract_logs/coreIssuanceOrder.ts
+++ b/utils/contract_logs/coreIssuanceOrder.ts
@@ -1,6 +1,3 @@
-import * as _ from 'lodash';
-import * as LogUtils from '../logs';
-
 import { Address, Log, Bytes32 } from '../../types/common';
 import { BigNumber } from 'bignumber.js';
 
diff --git a/yarn.lock b/yarn.lock
index 59768651b..41fd8cbb6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -65,6 +65,12 @@
     lodash "4.17.10"
     web3 "0.20.6"
 
+"@samverschueren/stream-to-observable@^0.3.0":
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/@samverschueren/stream-to-observable/-/stream-to-observable-0.3.0.tgz#ecdf48d532c58ea477acfcab80348424f8d0662f"
+  dependencies:
+    any-observable "^0.3.0"
+
 "@sindresorhus/is@^0.7.0":
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.7.0.tgz#9a06f4f137ee84d7df0460c1fdb1135ffa6c50fd"
@@ -247,7 +253,7 @@ ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
-ansi-styles@^3.2.1:
+ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
   dependencies:
@@ -261,6 +267,10 @@ any-observable@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.2.0.tgz#c67870058003579009083f54ac0abafb5c33d242"
 
+any-observable@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.3.0.tgz#af933475e5806a67d0d7df090dd5e8bef65d119b"
+
 anymatch@^1.3.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
@@ -275,6 +285,10 @@ anymatch@^2.0.0:
     micromatch "^3.1.4"
     normalize-path "^2.1.1"
 
+app-root-path@^2.0.1:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/app-root-path/-/app-root-path-2.1.0.tgz#98bf6599327ecea199309866e8140368fd2e646a"
+
 aproba@^1.0.3:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
@@ -1446,6 +1460,14 @@ chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
+chalk@^2.3.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
+  dependencies:
+    ansi-styles "^3.2.1"
+    escape-string-regexp "^1.0.5"
+    supports-color "^5.3.0"
+
 chalk@~0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-0.4.0.tgz#5199a3ddcd0c1efe23bc08c1b027b06176e0c64f"
@@ -1505,6 +1527,10 @@ chownr@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.0.1.tgz#e2a75042a9551908bebd25b8523d5f9769d79181"
 
+ci-info@^1.0.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-1.1.3.tgz#710193264bb05c77b8c90d02f5aaf22216a667b2"
+
 cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/cipher-base/-/cipher-base-1.0.4.tgz#8760e4ecc272f4c363532f926d874aae2c1397de"
@@ -1674,6 +1700,10 @@ commander@^2.11.0, commander@^2.12.1, commander@^2.9.0:
   version "2.15.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.15.1.tgz#df46e867d0fc2aec66a34662b406a9ccafff5b0f"
 
+commander@^2.14.1:
+  version "2.16.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.16.0.tgz#f16390593996ceb4f3eeb020b31d78528f7f8a50"
+
 commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
@@ -1734,6 +1764,14 @@ cosmiconfig@^3.1.0:
     parse-json "^3.0.0"
     require-from-string "^2.0.1"
 
+cosmiconfig@^5.0.2:
+  version "5.0.5"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.5.tgz#a809e3c2306891ce17ab70359dc8bdf661fe2cd0"
+  dependencies:
+    is-directory "^0.3.1"
+    js-yaml "^3.9.0"
+    parse-json "^4.0.0"
+
 coveralls@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-3.0.1.tgz#12e15914eaa29204e56869a5ece7b9e1492d2ae2"
@@ -1898,6 +1936,10 @@ decompress-response@^3.2.0, decompress-response@^3.3.0:
   dependencies:
     mimic-response "^1.0.0"
 
+dedent@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
+
 deep-eql@^0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-0.1.3.tgz#ef558acab8de25206cd713906d74e56930eb69f2"
@@ -2447,6 +2489,18 @@ execa@^0.7.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
+execa@^0.9.0:
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-0.9.0.tgz#adb7ce62cf985071f60580deb4a88b9e34712d01"
+  dependencies:
+    cross-spawn "^5.0.1"
+    get-stream "^3.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
 exit-hook@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/exit-hook/-/exit-hook-1.1.1.tgz#f05ca233b48c05d54fff07765df8507e95c02ff8"
@@ -2610,6 +2664,10 @@ find-line-column@^0.5.2:
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/find-line-column/-/find-line-column-0.5.2.tgz#db00238ff868551a182e74a103416d295a98c8ca"
 
+find-parent-dir@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/find-parent-dir/-/find-parent-dir-0.3.0.tgz#33c44b429ab2b2f0646299c5f9f718f376ff8d54"
+
 find-root@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/find-root/-/find-root-1.1.0.tgz#abcfc8ba76f708c42a97b3d685b7e9450bfb9ce4"
@@ -2798,6 +2856,10 @@ get-func-name@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/get-func-name/-/get-func-name-2.0.0.tgz#ead774abee72e20409433a066366023dd6887a41"
 
+get-own-enumerable-property-symbols@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-2.0.1.tgz#5c4ad87f2834c4b9b4e84549dc1e0650fb38c24b"
+
 get-stream@3.0.0, get-stream@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
@@ -3211,6 +3273,14 @@ https-browserify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
 
+husky@^0.14.3:
+  version "0.14.3"
+  resolved "https://registry.yarnpkg.com/husky/-/husky-0.14.3.tgz#c69ed74e2d2779769a17ba8399b54ce0b63c12c3"
+  dependencies:
+    is-ci "^1.0.10"
+    normalize-path "^1.0.0"
+    strip-indent "^2.0.0"
+
 iconv-lite@^0.4.17, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   version "0.4.21"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.21.tgz#c47f8733d02171189ebc4a400f3218d348094798"
@@ -3432,6 +3502,12 @@ is-callable@^1.1.1, is-callable@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.3.tgz#86eb75392805ddc33af71c92a0eedf74ee7604b2"
 
+is-ci@^1.0.10:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-ci/-/is-ci-1.1.0.tgz#247e4162e7860cebbdaf30b774d6b0ac7dcfe7a5"
+  dependencies:
+    ci-info "^1.0.0"
+
 is-data-descriptor@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz#0b5ee648388e2c860282e793f1856fec3f301b56"
@@ -3554,6 +3630,10 @@ is-number@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-4.0.0.tgz#0026e37f5454d73e356dfe6564699867c6a7f0ff"
 
+is-obj@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
+
 is-object@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-object/-/is-object-1.0.1.tgz#8952688c5ec2ffd6b03ecc85e769e02903083470"
@@ -3564,6 +3644,12 @@ is-observable@^0.2.0:
   dependencies:
     symbol-observable "^0.2.2"
 
+is-observable@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-observable/-/is-observable-1.1.0.tgz#b3e986c8f44de950867cab5403f5a3465005975e"
+  dependencies:
+    symbol-observable "^1.1.0"
+
 is-odd@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-odd/-/is-odd-2.0.0.tgz#7646624671fd7ea558ccd9a2795182f2958f1b24"
@@ -3614,6 +3700,10 @@ is-regex@^1.0.4:
   dependencies:
     has "^1.0.1"
 
+is-regexp@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-regexp/-/is-regexp-1.0.0.tgz#fd2d883545c46bac5a633e7b9a09e87fa2cb5069"
+
 is-resolvable@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
@@ -3715,6 +3805,19 @@ isurl@^1.0.0-alpha5:
     has-to-string-tag-x "^1.2.0"
     is-object "^1.0.1"
 
+jest-get-type@^22.1.0:
+  version "22.4.3"
+  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.4.3.tgz#e3a8504d8479342dd4420236b322869f18900ce4"
+
+jest-validate@^23.0.0:
+  version "23.4.0"
+  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-23.4.0.tgz#d96eede01ef03ac909c009e9c8e455197d48c201"
+  dependencies:
+    chalk "^2.0.1"
+    jest-get-type "^22.1.0"
+    leven "^2.1.0"
+    pretty-format "^23.2.0"
+
 js-sha3@0.5.5:
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.5.5.tgz#baf0c0e8c54ad5903447df96ade7a4a1bca79a4a"
@@ -3978,6 +4081,10 @@ levelup@^1.2.1:
     semver "~5.4.1"
     xtend "~4.0.0"
 
+leven@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
+
 levn@^0.3.0, levn@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
@@ -3985,6 +4092,34 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+lint-staged@^7.2.0:
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/lint-staged/-/lint-staged-7.2.0.tgz#bdf4bb7f2f37fe689acfaec9999db288a5b26888"
+  dependencies:
+    app-root-path "^2.0.1"
+    chalk "^2.3.1"
+    commander "^2.14.1"
+    cosmiconfig "^5.0.2"
+    debug "^3.1.0"
+    dedent "^0.7.0"
+    execa "^0.9.0"
+    find-parent-dir "^0.3.0"
+    is-glob "^4.0.0"
+    is-windows "^1.0.2"
+    jest-validate "^23.0.0"
+    listr "^0.14.1"
+    lodash "^4.17.5"
+    log-symbols "^2.2.0"
+    micromatch "^3.1.8"
+    npm-which "^3.0.1"
+    p-map "^1.1.1"
+    path-is-inside "^1.0.2"
+    pify "^3.0.0"
+    please-upgrade-node "^3.0.2"
+    staged-git-files "1.1.1"
+    string-argv "^0.0.2"
+    stringify-object "^3.2.2"
+
 listr-silent-renderer@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/listr-silent-renderer/-/listr-silent-renderer-1.1.1.tgz#924b5a3757153770bf1a8e3fbf74b8bbf3f9242e"
@@ -4033,6 +4168,27 @@ listr@^0.13.0:
     stream-to-observable "^0.2.0"
     strip-ansi "^3.0.1"
 
+listr@^0.14.1:
+  version "0.14.1"
+  resolved "https://registry.yarnpkg.com/listr/-/listr-0.14.1.tgz#8a7afa4a7135cee4c921d128e0b7dfc6e522d43d"
+  dependencies:
+    "@samverschueren/stream-to-observable" "^0.3.0"
+    cli-truncate "^0.2.1"
+    figures "^1.7.0"
+    indent-string "^2.1.0"
+    is-observable "^1.1.0"
+    is-promise "^2.1.0"
+    is-stream "^1.1.0"
+    listr-silent-renderer "^1.1.1"
+    listr-update-renderer "^0.4.0"
+    listr-verbose-renderer "^0.4.0"
+    log-symbols "^1.0.2"
+    log-update "^1.0.2"
+    ora "^0.2.3"
+    p-map "^1.1.1"
+    rxjs "^6.1.0"
+    strip-ansi "^3.0.1"
+
 load-json-file@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
@@ -4258,7 +4414,7 @@ micromatch@^2.1.5, micromatch@^2.3.7:
     parse-glob "^3.0.4"
     regex-cache "^0.4.2"
 
-micromatch@^3.1.4:
+micromatch@^3.1.4, micromatch@^3.1.8:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
   dependencies:
@@ -4535,6 +4691,10 @@ normalize-package-data@^2.3.2:
     semver "2 || 3 || 4 || 5"
     validate-npm-package-license "^3.0.1"
 
+normalize-path@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-1.0.0.tgz#32d0e472f91ff345701c15a8311018d3b0a90379"
+
 normalize-path@^2.0.0, normalize-path@^2.0.1, normalize-path@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.1.1.tgz#1ab28b556e198363a8c1a6f7e6fa20137fe6aed9"
@@ -4560,12 +4720,26 @@ npm-packlist@^1.1.6:
     ignore-walk "^3.0.1"
     npm-bundled "^1.0.1"
 
+npm-path@^2.0.2:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/npm-path/-/npm-path-2.0.4.tgz#c641347a5ff9d6a09e4d9bce5580c4f505278e64"
+  dependencies:
+    which "^1.2.10"
+
 npm-run-path@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
   dependencies:
     path-key "^2.0.0"
 
+npm-which@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/npm-which/-/npm-which-3.0.1.tgz#9225f26ec3a285c209cae67c3b11a6b4ab7140aa"
+  dependencies:
+    commander "^2.9.0"
+    npm-path "^2.0.2"
+    which "^1.2.10"
+
 npmlog@^4.0.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
@@ -4960,6 +5134,12 @@ pkg-dir@^2.0.0:
   dependencies:
     find-up "^2.1.0"
 
+please-upgrade-node@^3.0.2:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/please-upgrade-node/-/please-upgrade-node-3.1.1.tgz#ed320051dfcc5024fae696712c8288993595e8ac"
+  dependencies:
+    semver-compare "^1.0.0"
+
 pluralize@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
@@ -4992,6 +5172,13 @@ pretty-bytes@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/pretty-bytes/-/pretty-bytes-4.0.2.tgz#b2bf82e7350d65c6c33aa95aaa5a4f6327f61cd9"
 
+pretty-format@^23.2.0:
+  version "23.2.0"
+  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-23.2.0.tgz#3b0aaa63c018a53583373c1cb3a5d96cc5e83017"
+  dependencies:
+    ansi-regex "^3.0.0"
+    ansi-styles "^3.2.0"
+
 private@^0.1.6, private@^0.1.7, private@^0.1.8, private@~0.1.5:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
@@ -5537,6 +5724,12 @@ rxjs@^5.4.2, rxjs@^5.5.2:
   dependencies:
     symbol-observable "1.0.1"
 
+rxjs@^6.1.0:
+  version "6.2.2"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.2.2.tgz#eb75fa3c186ff5289907d06483a77884586e1cf9"
+  dependencies:
+    tslib "^1.9.0"
+
 safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
@@ -5603,6 +5796,10 @@ semaphore@>=1.0.1, semaphore@^1.0.3:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/semaphore/-/semaphore-1.1.0.tgz#aaad8b86b20fe8e9b32b16dc2ee682a8cd26a8aa"
 
+semver-compare@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/semver-compare/-/semver-compare-1.0.0.tgz#0dee216a1c941ab37e9efb1788f6afc5ff5537fc"
+
 "semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.5.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
@@ -5947,6 +6144,10 @@ sshpk@^1.7.0:
     jsbn "~0.1.0"
     tweetnacl "~0.14.0"
 
+staged-git-files@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/staged-git-files/-/staged-git-files-1.1.1.tgz#37c2218ef0d6d26178b1310719309a16a59f8f7b"
+
 static-extend@^0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/static-extend/-/static-extend-0.1.2.tgz#60809c39cbff55337226fd5e0b520f341f1fb5c6"
@@ -5981,6 +6182,10 @@ strict-uri-encode@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz#279b225df1d582b1f54e65addd4352e18faa0713"
 
+string-argv@^0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/string-argv/-/string-argv-0.0.2.tgz#dac30408690c21f3c3630a3ff3a05877bdcbd736"
+
 string-template@~0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/string-template/-/string-template-0.2.1.tgz#42932e598a352d01fc22ec3367d9d84eec6c9add"
@@ -6018,6 +6223,14 @@ string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
 
+stringify-object@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/stringify-object/-/stringify-object-3.2.2.tgz#9853052e5a88fb605a44cd27445aa257ad7ffbcd"
+  dependencies:
+    get-own-enumerable-property-symbols "^2.0.1"
+    is-obj "^1.0.1"
+    is-regexp "^1.0.0"
+
 stringstream@~0.0.4, stringstream@~0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
@@ -6065,6 +6278,10 @@ strip-hex-prefix@1.0.0:
   dependencies:
     is-hex-prefixed "1.0.0"
 
+strip-indent@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-2.0.0.tgz#5ef8db295d01e6ed6cbf7aab96998d7822527b68"
+
 strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
@@ -6099,6 +6316,10 @@ symbol-observable@^0.2.2:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-0.2.4.tgz#95a83db26186d6af7e7a18dbd9760a2f86d08f40"
 
+symbol-observable@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.2.0.tgz#c22688aed4eab3cdc2dfeacbb561660560a00804"
+
 table@4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
@@ -6332,7 +6553,7 @@ tslib@1.9.0, tslib@^1.8.0, tslib@^1.8.1:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.0.tgz#e37a86fda8cbbaf23a057f473c9f4dc64e5fc2e8"
 
-tslib@^1.7.1:
+tslib@^1.7.1, tslib@^1.9.0:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
 
@@ -6764,6 +6985,12 @@ which@^1.1.1, which@^1.2.14, which@^1.2.9:
   dependencies:
     isexe "^2.0.0"
 
+which@^1.2.10:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
+  dependencies:
+    isexe "^2.0.0"
+
 wide-align@^1.1.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.2.tgz#571e0f1b0604636ebc0dfc21b0339bbe31341710"