Merge branch 'development' into fix/ether_token_address

37 files changed, 107 insertions, 348 deletions

diff --git a/packages/0x.js/CHANGELOG.md b/packages/0x.js/CHANGELOG.md
index 2dd1bbaaa..0202471e7 100644
--- a/packages/0x.js/CHANGELOG.md
+++ b/packages/0x.js/CHANGELOG.md
@@ -1,9 +1,14 @@
 # CHANGELOG
 
+
 ## v0.x.0 - _TBD, 2018_
 
     * Add `zeroEx.etherToken.getContractAddressIfExists` (#350)
 
+## v0.31.1 - _February 1, 2018_
+
+    * Fix the bug causing order watcher to throw is makerToken === zrx (#357)
+
 ## v0.31.0 - _January 30, 2018_
 
     * Add the `shouldAddPersonalMessagePrefix` parameter to `signOrderHashAsync` so that the
diff --git a/packages/0x.js/contract_templates/contract.mustache b/packages/0x.js/contract_templates/contract.handlebars
index 3e501cce6..d3fe1b8cc 100644
--- a/packages/0x.js/contract_templates/contract.mustache
+++ b/packages/0x.js/contract_templates/contract.handlebars
@@ -20,6 +20,6 @@ export class {{contractName}}Contract extends BaseContract {
 {{/each}}
     constructor(web3ContractInstance: Web3.ContractInstance, defaults: Partial<TxData>) {
         super(web3ContractInstance, defaults);
-        classUtils.bindAll(this, ['web3ContractInstance', 'defaults']);
+        classUtils.bindAll(this, ['_web3ContractInstance', '_defaults']);
     }
 } // tslint:disable:max-file-line-count
diff --git a/packages/0x.js/contract_templates/partials/call.mustache b/packages/0x.js/contract_templates/partials/call.handlebars
index ef4bda724..0475136f0 100644
--- a/packages/0x.js/contract_templates/partials/call.mustache
+++ b/packages/0x.js/contract_templates/partials/call.handlebars
@@ -5,8 +5,8 @@ public {{this.name}} = {
     ): Promise<{{> return_type outputs=outputs}}> {
         const self = this as {{contractName}}Contract;
         const result = await promisify<{{> return_type outputs=outputs}}>(
-            self.web3ContractInstance.{{this.name}}.call,
-            self.web3ContractInstance,
+            self._web3ContractInstance.{{this.name}}.call,
+            self._web3ContractInstance,
         )(
             {{> params inputs=inputs}}
         );
diff --git a/packages/0x.js/contract_templates/partials/params.mustache b/packages/0x.js/contract_templates/partials/params.handlebars
index ac5d4ae85..ac5d4ae85 100644
--- a/packages/0x.js/contract_templates/partials/params.mustache
+++ b/packages/0x.js/contract_templates/partials/params.handlebars
diff --git a/packages/0x.js/contract_templates/partials/return_type.mustache b/packages/0x.js/contract_templates/partials/return_type.handlebars
index 383961a40..383961a40 100644
--- a/packages/0x.js/contract_templates/partials/return_type.mustache
+++ b/packages/0x.js/contract_templates/partials/return_type.handlebars
diff --git a/packages/0x.js/contract_templates/partials/tx.mustache b/packages/0x.js/contract_templates/partials/tx.handlebars
index 8a43e5319..9df83266a 100644
--- a/packages/0x.js/contract_templates/partials/tx.mustache
+++ b/packages/0x.js/contract_templates/partials/tx.handlebars
@@ -9,7 +9,7 @@ public {{this.name}} = {
     {{/this.payable}}
     ): Promise<string> {
         const self = this as {{contractName}}Contract;
-        const txDataWithDefaults = await self.applyDefaultsToTxDataAsync(
+        const txDataWithDefaults = await self._applyDefaultsToTxDataAsync(
             txData,
             self.{{this.name}}.estimateGasAsync.bind(
                 self,
@@ -17,7 +17,7 @@ public {{this.name}} = {
             ),
         );
         const txHash = await promisify<string>(
-            self.web3ContractInstance.{{this.name}}, self.web3ContractInstance,
+            self._web3ContractInstance.{{this.name}}, self._web3ContractInstance,
         )(
             {{> params inputs=inputs}}
             txDataWithDefaults,
@@ -29,11 +29,11 @@ public {{this.name}} = {
         txData: TxData = {},
     ): Promise<number> {
         const self = this as {{contractName}}Contract;
-        const txDataWithDefaults = await self.applyDefaultsToTxDataAsync(
+        const txDataWithDefaults = await self._applyDefaultsToTxDataAsync(
             txData,
         );
         const gas = await promisify<number>(
-            self.web3ContractInstance.{{this.name}}.estimateGas, self.web3ContractInstance,
+            self._web3ContractInstance.{{this.name}}.estimateGas, self._web3ContractInstance,
         )(
             {{> params inputs=inputs}}
             txDataWithDefaults,
@@ -45,7 +45,7 @@ public {{this.name}} = {
         txData: TxData = {},
     ): string {
         const self = this as {{contractName}}Contract;
-        const abiEncodedTransactionData = self.web3ContractInstance.{{this.name}}.getData();
+        const abiEncodedTransactionData = self._web3ContractInstance.{{this.name}}.getData();
         return abiEncodedTransactionData;
     },
 };
diff --git a/packages/0x.js/contract_templates/partials/typed_params.mustache b/packages/0x.js/contract_templates/partials/typed_params.handlebars
index 3ea4b2e95..3ea4b2e95 100644
--- a/packages/0x.js/contract_templates/partials/typed_params.mustache
+++ b/packages/0x.js/contract_templates/partials/typed_params.handlebars
diff --git a/packages/0x.js/package.json b/packages/0x.js/package.json
index 2942e5001..a967cea16 100644
--- a/packages/0x.js/package.json
+++ b/packages/0x.js/package.json
@@ -1,6 +1,6 @@
 {
     "name": "0x.js",
-    "version": "0.31.0",
+    "version": "0.31.1",
     "description": "A javascript library for interacting with the 0x protocol",
     "keywords": [
         "0x.js",
@@ -12,11 +12,12 @@
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
     "scripts": {
+        "build:watch": "tsc -w",
         "prebuild": "run-s clean generate_contract_wrappers",
         "build": "run-p build:umd:prod build:commonjs; exit 0;",
         "docs:json": "typedoc --excludePrivate --excludeExternals --target ES5 --json $JSON_FILE_PATH $PROJECT_DIR",
         "upload_docs_json": "aws s3 cp generated_docs/index.json $S3_URL --profile 0xproject --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers --content-type application/json",
-        "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abiGlob 'src/artifacts/@(Exchange|Token|TokenTransferProxy|EtherToken|TokenRegistry|DummyToken).json' --templates contract_templates --output src/contract_wrappers/generated",
+        "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis 'src/artifacts/@(Exchange|Token|TokenTransferProxy|EtherToken|TokenRegistry|DummyToken).json' --template contract_templates/contract.handlebars --partials 'contract_templates/partials/**/*.handlebars' --output src/contract_wrappers/generated",
         "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
         "test:circleci": "run-s test:coverage report_test_coverage",
         "test": "run-s clean test:commonjs",
@@ -41,9 +42,9 @@
         "node": ">=6.0.0"
     },
     "devDependencies": {
-        "@0xproject/abi-gen": "^0.1.5",
-        "@0xproject/dev-utils": "^0.0.8",
-        "@0xproject/tslint-config": "^0.4.5",
+        "@0xproject/abi-gen": "^0.1.6",
+        "@0xproject/dev-utils": "^0.0.9",
+        "@0xproject/tslint-config": "^0.4.6",
         "@types/bintrees": "^1.0.2",
         "@types/jsonschema": "^1.1.1",
         "@types/lodash": "^4.14.86",
@@ -54,7 +55,7 @@
         "awesome-typescript-loader": "^3.1.3",
         "chai": "^4.0.1",
         "chai-as-promised": "^7.1.0",
-        "chai-as-promised-typescript-typings": "^0.0.7",
+        "chai-as-promised-typescript-typings": "^0.0.8",
         "chai-bignumber": "^2.0.1",
         "chai-typescript-typings": "^0.0.2",
         "copyfiles": "^1.2.0",
@@ -66,30 +67,30 @@
         "nyc": "^11.0.1",
         "opn-cli": "^3.1.0",
         "request": "^2.81.0",
-        "request-promise-native": "^1.0.4",
+        "request-promise-native": "^1.0.5",
         "shx": "^0.2.2",
         "sinon": "^4.0.0",
         "source-map-support": "^0.5.0",
         "truffle-hdwallet-provider": "^0.0.3",
         "tslint": "5.8.0",
         "typedoc": "~0.8.0",
-        "typescript": "~2.6.1",
+        "typescript": "2.7.1",
         "web3-provider-engine": "^13.0.1",
-        "web3-typescript-typings": "^0.9.7",
+        "web3-typescript-typings": "^0.9.8",
         "webpack": "^3.1.0"
     },
     "dependencies": {
-        "@0xproject/assert": "^0.0.14",
-        "@0xproject/json-schemas": "^0.7.6",
-        "@0xproject/types": "^0.1.7",
-        "@0xproject/utils": "^0.2.3",
-        "@0xproject/web3-wrapper": "^0.1.8",
+        "@0xproject/assert": "^0.0.15",
+        "@0xproject/json-schemas": "^0.7.7",
+        "@0xproject/types": "^0.1.8",
+        "@0xproject/utils": "^0.2.4",
+        "@0xproject/web3-wrapper": "^0.1.9",
         "bintrees": "^1.0.2",
         "bn.js": "^4.11.8",
         "ethereumjs-abi": "^0.6.4",
         "ethereumjs-blockstream": "^2.0.6",
         "ethereumjs-util": "^5.1.1",
-        "js-sha3": "^0.6.1",
+        "js-sha3": "^0.7.0",
         "lodash": "^4.17.4",
         "uuid": "^3.1.0",
         "web3": "^0.20.0"
diff --git a/packages/0x.js/src/0x.ts b/packages/0x.js/src/0x.ts
index f8a484c5d..6cfa65cc2 100644
--- a/packages/0x.js/src/0x.ts
+++ b/packages/0x.js/src/0x.ts
@@ -1,5 +1,6 @@
 import { schemas, SchemaValidator } from '@0xproject/json-schemas';
-import { BigNumber, intervalUtils } from '@0xproject/utils';
+import { TransactionReceiptWithDecodedLogs } from '@0xproject/types';
+import { AbiDecoder, BigNumber, intervalUtils } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as ethUtil from 'ethereumjs-util';
 import * as _ from 'lodash';
@@ -12,16 +13,7 @@ import { TokenTransferProxyWrapper } from './contract_wrappers/token_transfer_pr
 import { TokenWrapper } from './contract_wrappers/token_wrapper';
 import { OrderStateWatcher } from './order_watcher/order_state_watcher';
 import { zeroExConfigSchema } from './schemas/zero_ex_config_schema';
-import {
-    ECSignature,
-    Order,
-    SignedOrder,
-    TransactionReceiptWithDecodedLogs,
-    Web3Provider,
-    ZeroExConfig,
-    ZeroExError,
-} from './types';
-import { AbiDecoder } from './utils/abi_decoder';
+import { ECSignature, Order, SignedOrder, Web3Provider, ZeroExConfig, ZeroExError } from './types';
 import { assert } from './utils/assert';
 import { constants } from './utils/constants';
 import { decorators } from './utils/decorators';
@@ -334,8 +326,8 @@ export class ZeroEx {
                 );
             },
         );
-
-        return txReceiptPromise;
+        const txReceipt = await txReceiptPromise;
+        return txReceipt;
     }
     /*
      * HACK: `TokenWrapper` needs a token transfer proxy address. `TokenTransferProxy` address is fetched from
diff --git a/packages/0x.js/src/contract_wrappers/contract_wrapper.ts b/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
index 09de77452..d913e8d9b 100644
--- a/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
@@ -1,4 +1,5 @@
-import { intervalUtils } from '@0xproject/utils';
+import { LogWithDecodedArgs, RawLog } from '@0xproject/types';
+import { AbiDecoder, intervalUtils } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import { Block, BlockAndLogStreamer } from 'ethereumjs-blockstream';
 import * as _ from 'lodash';
@@ -13,11 +14,8 @@ import {
     EventCallback,
     IndexedFilterValues,
     InternalZeroExError,
-    LogWithDecodedArgs,
-    RawLog,
     ZeroExError,
 } from '../types';
-import { AbiDecoder } from '../utils/abi_decoder';
 import { constants } from '../utils/constants';
 import { filterUtils } from '../utils/filter_utils';
 
@@ -36,8 +34,8 @@ export class ContractWrapper {
     protected _web3Wrapper: Web3Wrapper;
     protected _networkId: number;
     private _abiDecoder?: AbiDecoder;
-    private _blockAndLogStreamerIfExists: BlockAndLogStreamer | undefined;
-    private _blockAndLogStreamInterval: NodeJS.Timer;
+    private _blockAndLogStreamerIfExists?: BlockAndLogStreamer;
+    private _blockAndLogStreamIntervalIfExists?: NodeJS.Timer;
     private _filters: { [filterToken: string]: Web3.FilterObject };
     private _filterCallbacks: {
         [filterToken: string]: EventCallback<ContractEventArgs>;
@@ -54,7 +52,7 @@ export class ContractWrapper {
         this._onLogAddedSubscriptionToken = undefined;
         this._onLogRemovedSubscriptionToken = undefined;
     }
-    protected unsubscribeAll(): void {
+    protected _unsubscribeAll(): void {
         const filterTokens = _.keys(this._filterCallbacks);
         _.each(filterTokens, filterToken => {
             this._unsubscribe(filterToken);
@@ -164,7 +162,7 @@ export class ContractWrapper {
         );
         const catchAllLogFilter = {};
         this._blockAndLogStreamerIfExists.addLogFilter(catchAllLogFilter);
-        this._blockAndLogStreamInterval = intervalUtils.setAsyncExcludingInterval(
+        this._blockAndLogStreamIntervalIfExists = intervalUtils.setAsyncExcludingInterval(
             this._reconcileBlockAsync.bind(this),
             constants.DEFAULT_BLOCK_POLLING_INTERVAL,
             this._onReconcileBlockError.bind(this),
@@ -193,7 +191,7 @@ export class ContractWrapper {
         }
         this._blockAndLogStreamerIfExists.unsubscribeFromOnLogAdded(this._onLogAddedSubscriptionToken as string);
         this._blockAndLogStreamerIfExists.unsubscribeFromOnLogRemoved(this._onLogRemovedSubscriptionToken as string);
-        intervalUtils.clearAsyncExcludingInterval(this._blockAndLogStreamInterval);
+        intervalUtils.clearAsyncExcludingInterval(this._blockAndLogStreamIntervalIfExists as NodeJS.Timer);
         delete this._blockAndLogStreamerIfExists;
     }
     private async _reconcileBlockAsync(): Promise<void> {
diff --git a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts b/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
index ead6fe9d1..32c9ae6a9 100644
--- a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
@@ -1,5 +1,6 @@
 import { schemas } from '@0xproject/json-schemas';
-import { BigNumber } from '@0xproject/utils';
+import { LogWithDecodedArgs } from '@0xproject/types';
+import { AbiDecoder, BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 
@@ -10,11 +11,9 @@ import {
     EtherTokenEvents,
     EventCallback,
     IndexedFilterValues,
-    LogWithDecodedArgs,
     TransactionOpts,
     ZeroExError,
 } from '../types';
-import { AbiDecoder } from '../utils/abi_decoder';
 import { assert } from '../utils/assert';
 
 import { ContractWrapper } from './contract_wrapper';
@@ -160,8 +159,8 @@ export class EtherTokenWrapper extends ContractWrapper {
     /**
      * Cancels all existing subscriptions
      */
-    public unsubscribeAll(): void {
-        super.unsubscribeAll();
+    public _unsubscribeAll(): void {
+        super._unsubscribeAll();
     }
     /**
      * Retrieves the Ethereum address of the EtherToken contract deployed on the network
@@ -177,7 +176,7 @@ export class EtherTokenWrapper extends ContractWrapper {
         return contractAddressIfExists;
     }
     private _invalidateContractInstance(): void {
-        this.unsubscribeAll();
+        this._unsubscribeAll();
         this._etherTokenContractsByAddress = {};
     }
     private async _getEtherTokenContractAsync(etherTokenAddress: string): Promise<EtherTokenContract> {
diff --git a/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts b/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
index 2b6117729..63c0d073a 100644
--- a/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
@@ -1,5 +1,6 @@
 import { schemas } from '@0xproject/json-schemas';
-import { BigNumber } from '@0xproject/utils';
+import { DecodedLogArgs, LogWithDecodedArgs } from '@0xproject/types';
+import { AbiDecoder, BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import * as Web3 from 'web3';
@@ -8,7 +9,6 @@ import { artifacts } from '../artifacts';
 import {
     BlockParamLiteral,
     BlockRange,
-    DecodedLogArgs,
     ECSignature,
     EventCallback,
     ExchangeContractErrCodes,
@@ -17,7 +17,6 @@ import {
     ExchangeEvents,
     IndexedFilterValues,
     LogErrorContractEventArgs,
-    LogWithDecodedArgs,
     MethodOpts,
     Order,
     OrderAddresses,
@@ -28,7 +27,6 @@ import {
     SignedOrder,
     ValidateOrderFillableOpts,
 } from '../types';
-import { AbiDecoder } from '../utils/abi_decoder';
 import { assert } from '../utils/assert';
 import { decorators } from '../utils/decorators';
 import { ExchangeTransferSimulator } from '../utils/exchange_transfer_simulator';
@@ -680,8 +678,8 @@ export class ExchangeWrapper extends ContractWrapper {
     /**
      * Cancels all existing subscriptions
      */
-    public unsubscribeAll(): void {
-        super.unsubscribeAll();
+    public _unsubscribeAll(): void {
+        super._unsubscribeAll();
     }
     /**
      * Gets historical logs without creating a subscription
@@ -846,9 +844,9 @@ export class ExchangeWrapper extends ContractWrapper {
     public throwLogErrorsAsErrors(logs: Array<LogWithDecodedArgs<DecodedLogArgs> | Web3.LogEntry>): void {
         const errLog = _.find(logs, {
             event: ExchangeEvents.LogError,
-        }) as LogWithDecodedArgs<LogErrorContractEventArgs> | undefined;
+        });
         if (!_.isUndefined(errLog)) {
-            const logArgs = errLog.args;
+            const logArgs = (errLog as LogWithDecodedArgs<LogErrorContractEventArgs>).args;
             const errCode = logArgs.errorId.toNumber();
             const errMessage = this._exchangeContractErrCodesToMsg[errCode];
             throw new Error(errMessage);
@@ -863,7 +861,7 @@ export class ExchangeWrapper extends ContractWrapper {
         return contractAddress;
     }
     private _invalidateContractInstances(): void {
-        this.unsubscribeAll();
+        this._unsubscribeAll();
         delete this._exchangeContractIfExists;
     }
     private async _isValidSignatureUsingContractCallAsync(
diff --git a/packages/0x.js/src/contract_wrappers/generated/base_contract.ts b/packages/0x.js/src/contract_wrappers/generated/base_contract.ts
index 28a7e2f52..d8fac7eea 100644
--- a/packages/0x.js/src/contract_wrappers/generated/base_contract.ts
+++ b/packages/0x.js/src/contract_wrappers/generated/base_contract.ts
@@ -3,9 +3,9 @@ import * as _ from 'lodash';
 import * as Web3 from 'web3';
 
 export class BaseContract {
-    protected web3ContractInstance: Web3.ContractInstance;
-    protected defaults: Partial<TxData>;
-    protected async applyDefaultsToTxDataAsync<T extends TxData|TxDataPayable>(
+    protected _web3ContractInstance: Web3.ContractInstance;
+    protected _defaults: Partial<TxData>;
+    protected async _applyDefaultsToTxDataAsync<T extends TxData|TxDataPayable>(
         txData: T,
         estimateGasAsync?: (txData: T) => Promise<number>,
     ): Promise<TxData> {
@@ -15,7 +15,7 @@ export class BaseContract {
         // 3. Gas estimate calculation + safety margin
         const removeUndefinedProperties = _.pickBy;
         const txDataWithDefaults = {
-            ...removeUndefinedProperties(this.defaults),
+            ...removeUndefinedProperties(this._defaults),
             ...removeUndefinedProperties(txData as any),
             // HACK: TS can't prove that T is spreadable.
             // Awaiting https://github.com/Microsoft/TypeScript/pull/13288 to be merged
@@ -27,7 +27,7 @@ export class BaseContract {
         return txDataWithDefaults;
     }
     constructor(web3ContractInstance: Web3.ContractInstance, defaults: Partial<TxData>) {
-        this.web3ContractInstance = web3ContractInstance;
-        this.defaults = defaults;
+        this._web3ContractInstance = web3ContractInstance;
+        this._defaults = defaults;
     }
 }
diff --git a/packages/0x.js/src/contract_wrappers/token_wrapper.ts b/packages/0x.js/src/contract_wrappers/token_wrapper.ts
index 7943f4a60..98c24d059 100644
--- a/packages/0x.js/src/contract_wrappers/token_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/token_wrapper.ts
@@ -1,5 +1,6 @@
 import { schemas } from '@0xproject/json-schemas';
-import { BigNumber } from '@0xproject/utils';
+import { LogWithDecodedArgs } from '@0xproject/types';
+import { AbiDecoder, BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 
@@ -8,14 +9,12 @@ import {
     BlockRange,
     EventCallback,
     IndexedFilterValues,
-    LogWithDecodedArgs,
     MethodOpts,
     TokenContractEventArgs,
     TokenEvents,
     TransactionOpts,
     ZeroExError,
 } from '../types';
-import { AbiDecoder } from '../utils/abi_decoder';
 import { assert } from '../utils/assert';
 import { constants } from '../utils/constants';
 
@@ -343,8 +342,8 @@ export class TokenWrapper extends ContractWrapper {
     /**
      * Cancels all existing subscriptions
      */
-    public unsubscribeAll(): void {
-        super.unsubscribeAll();
+    public _unsubscribeAll(): void {
+        super._unsubscribeAll();
     }
     /**
      * Gets historical logs without creating a subscription
@@ -375,7 +374,7 @@ export class TokenWrapper extends ContractWrapper {
         return logs;
     }
     private _invalidateContractInstances(): void {
-        this.unsubscribeAll();
+        this._unsubscribeAll();
         this._tokenContractsByAddress = {};
     }
     private async _getTokenContractAsync(tokenAddress: string): Promise<TokenContract> {
diff --git a/packages/0x.js/src/globals.d.ts b/packages/0x.js/src/globals.d.ts
index 4f4932b6e..0e103d057 100644
--- a/packages/0x.js/src/globals.d.ts
+++ b/packages/0x.js/src/globals.d.ts
@@ -41,19 +41,3 @@ declare module 'truffle-hdwallet-provider' {
     }
     export = HDWalletProvider;
 }
-
-// abi-decoder declarations
-interface DecodedLogArg {}
-interface DecodedLog {
-    name: string;
-    events: DecodedLogArg[];
-}
-declare module 'abi-decoder' {
-    import * as Web3 from 'web3';
-    const addABI: (abi: Web3.AbiDefinition) => void;
-    const decodeLogs: (logs: Web3.LogEntry[]) => DecodedLog[];
-}
-
-declare module 'web3/lib/solidity/coder' {
-    const decodeParams: (types: string[], data: string) => any[];
-}
diff --git a/packages/0x.js/src/index.ts b/packages/0x.js/src/index.ts
index 599c3a2b0..41e67e177 100644
--- a/packages/0x.js/src/index.ts
+++ b/packages/0x.js/src/index.ts
@@ -28,12 +28,9 @@ export {
     WithdrawalContractEventArgs,
     DepositContractEventArgs,
     ContractEventArgs,
-    ContractEventArg,
     Web3Provider,
     ZeroExConfig,
     EtherTokenEvents,
-    TransactionReceiptWithDecodedLogs,
-    LogWithDecodedArgs,
     MethodOpts,
     OrderTransactionOpts,
     TransactionOpts,
@@ -47,4 +44,6 @@ export {
     OrderState,
 } from './types';
 
+export { ContractEventArg, LogWithDecodedArgs, TransactionReceiptWithDecodedLogs } from '@0xproject/types';
+
 export { TransactionReceipt } from '@0xproject/types';
diff --git a/packages/0x.js/src/order_watcher/order_state_watcher.ts b/packages/0x.js/src/order_watcher/order_state_watcher.ts
index 12ac60960..1ad1a90b1 100644
--- a/packages/0x.js/src/order_watcher/order_state_watcher.ts
+++ b/packages/0x.js/src/order_watcher/order_state_watcher.ts
@@ -1,5 +1,6 @@
 import { schemas } from '@0xproject/json-schemas';
-import { intervalUtils } from '@0xproject/utils';
+import { LogWithDecodedArgs } from '@0xproject/types';
+import { AbiDecoder, intervalUtils } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 
@@ -19,7 +20,6 @@ import {
     LogCancelContractEventArgs,
     LogEvent,
     LogFillContractEventArgs,
-    LogWithDecodedArgs,
     OnOrderStateChangeCallback,
     OrderState,
     OrderStateWatcherConfig,
@@ -29,7 +29,6 @@ import {
     WithdrawalContractEventArgs,
     ZeroExError,
 } from '../types';
-import { AbiDecoder } from '../utils/abi_decoder';
 import { assert } from '../utils/assert';
 import { OrderStateUtils } from '../utils/order_state_utils';
 import { utils } from '../utils/utils';
@@ -134,8 +133,12 @@ export class OrderStateWatcher {
         delete this._orderStateByOrderHashCache[orderHash];
         const exchange = (this._orderFilledCancelledLazyStore as any)._exchange as ExchangeWrapper;
         const zrxTokenAddress = exchange.getZRXTokenAddress();
+
         this._removeFromDependentOrderHashes(signedOrder.maker, zrxTokenAddress, orderHash);
-        this._removeFromDependentOrderHashes(signedOrder.maker, signedOrder.makerTokenAddress, orderHash);
+        if (zrxTokenAddress !== signedOrder.makerTokenAddress) {
+            this._removeFromDependentOrderHashes(signedOrder.maker, signedOrder.makerTokenAddress, orderHash);
+        }
+
         this._expirationWatcher.removeOrder(orderHash);
     }
     /**
@@ -224,12 +227,12 @@ export class OrderStateWatcher {
             return;
         }
         const log = logIfExists as LogEvent; // At this moment we are sure that no error occured and log is defined.
-        const maybeDecodedLog = this._abiDecoder.tryToDecodeLogOrNoop(log);
-        const isLogDecoded = !_.isUndefined((maybeDecodedLog as LogWithDecodedArgs<any>).event);
+        const maybeDecodedLog = this._abiDecoder.tryToDecodeLogOrNoop<ContractEventArgs>(log);
+        const isLogDecoded = !_.isUndefined(((maybeDecodedLog as any) as LogWithDecodedArgs<ContractEventArgs>).event);
         if (!isLogDecoded) {
             return; // noop
         }
-        const decodedLog = maybeDecodedLog as LogWithDecodedArgs<ContractEventArgs>;
+        const decodedLog = (maybeDecodedLog as any) as LogWithDecodedArgs<ContractEventArgs>;
         let makerToken: string;
         let makerAddress: string;
         switch (decodedLog.event) {
diff --git a/packages/0x.js/src/types.ts b/packages/0x.js/src/types.ts
index 3c93910e9..a0deb91c9 100644
--- a/packages/0x.js/src/types.ts
+++ b/packages/0x.js/src/types.ts
@@ -1,4 +1,4 @@
-import { TransactionReceipt } from '@0xproject/types';
+import { ContractEventArg, LogWithDecodedArgs } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as Web3 from 'web3';
 
@@ -53,13 +53,6 @@ export interface DecodedLogEvent<ArgsType> {
 export type EventCallback<ArgsType> = (err: null | Error, log?: DecodedLogEvent<ArgsType>) => void;
 export type EventWatcherCallback = (err: null | Error, log?: LogEvent) => void;
 
-export enum SolidityTypes {
-    Address = 'address',
-    Uint256 = 'uint256',
-    Uint8 = 'uint8',
-    Uint = 'uint',
-}
-
 export enum ExchangeContractErrCodes {
     ERROR_FILL_EXPIRED, // Order has already expired
     ERROR_FILL_NO_VALUE, // Order has already been fully filled or cancelled
@@ -94,8 +87,6 @@ export enum ExchangeContractErrs {
     BatchOrdersMustHaveAtLeastOneItem = 'BATCH_ORDERS_MUST_HAVE_AT_LEAST_ONE_ITEM',
 }
 
-export type RawLog = Web3.LogEntry;
-
 export interface ContractEvent {
     logIndex: number;
     transactionIndex: number;
@@ -163,7 +154,6 @@ export type EtherTokenContractEventArgs =
     | DepositContractEventArgs
     | WithdrawalContractEventArgs;
 export type ContractEventArgs = ExchangeContractEventArgs | TokenContractEventArgs | EtherTokenContractEventArgs;
-export type ContractEventArg = string | BigNumber;
 
 export interface Order {
     maker: string;
@@ -267,11 +257,6 @@ export type SyncMethod = (...args: any[]) => any;
  */
 export type Web3Provider = Web3.Provider;
 
-export interface JSONRPCPayload {
-    params: any[];
-    method: string;
-}
-
 /*
  * orderExpirationCheckingIntervalMs: How often to check for expired orders. Default: 50
  * eventPollingIntervalMs: How often to poll the Ethereum node for new events. Defaults: 200
@@ -305,23 +290,6 @@ export interface ZeroExConfig {
     orderWatcherConfig?: OrderStateWatcherConfig;
 }
 
-export enum AbiType {
-    Function = 'function',
-    Constructor = 'constructor',
-    Event = 'event',
-    Fallback = 'fallback',
-}
-
-export interface DecodedLogArgs {
-    [argName: string]: ContractEventArg;
-}
-
-export interface LogWithDecodedArgs<ArgsType> extends Web3.DecodedLogEntry<ArgsType> {}
-
-export interface TransactionReceiptWithDecodedLogs extends TransactionReceipt {
-    logs: Array<LogWithDecodedArgs<DecodedLogArgs> | Web3.LogEntry>;
-}
-
 export type ArtifactContractName = 'ZRX' | 'TokenTransferProxy' | 'TokenRegistry' | 'Token' | 'Exchange' | 'EtherToken';
 
 export interface Artifact {
diff --git a/packages/0x.js/src/utils/abi_decoder.ts b/packages/0x.js/src/utils/abi_decoder.ts
deleted file mode 100644
index bbd2a0b1d..000000000
--- a/packages/0x.js/src/utils/abi_decoder.ts
+++ /dev/null
@@ -1,72 +0,0 @@
-import { BigNumber } from '@0xproject/utils';
-import * as _ from 'lodash';
-import * as Web3 from 'web3';
-import * as SolidityCoder from 'web3/lib/solidity/coder';
-
-import { AbiType, ContractEventArgs, DecodedLogArgs, LogWithDecodedArgs, RawLog, SolidityTypes } from '../types';
-
-export class AbiDecoder {
-    private _savedABIs: Web3.AbiDefinition[] = [];
-    private _methodIds: { [signatureHash: string]: Web3.EventAbi } = {};
-    private static _padZeros(address: string) {
-        let formatted = address;
-        if (_.startsWith(formatted, '0x')) {
-            formatted = formatted.slice(2);
-        }
-
-        formatted = _.padStart(formatted, 40, '0');
-        return `0x${formatted}`;
-    }
-    constructor(abiArrays: Web3.AbiDefinition[][]) {
-        _.map(abiArrays, this._addABI.bind(this));
-    }
-    // This method can only decode logs from the 0x & ERC20 smart contracts
-    public tryToDecodeLogOrNoop<ArgsType extends ContractEventArgs>(
-        log: Web3.LogEntry,
-    ): LogWithDecodedArgs<ArgsType> | RawLog {
-        const methodId = log.topics[0];
-        const event = this._methodIds[methodId];
-        if (_.isUndefined(event)) {
-            return log;
-        }
-        const logData = log.data;
-        const decodedParams: DecodedLogArgs = {};
-        let dataIndex = 0;
-        let topicsIndex = 1;
-
-        const nonIndexedInputs = _.filter(event.inputs, input => !input.indexed);
-        const dataTypes = _.map(nonIndexedInputs, input => input.type);
-        const decodedData = SolidityCoder.decodeParams(dataTypes, logData.slice('0x'.length));
-
-        _.map(event.inputs, (param: Web3.EventParameter) => {
-            // Indexed parameters are stored in topics. Non-indexed ones in decodedData
-            let value = param.indexed ? log.topics[topicsIndex++] : decodedData[dataIndex++];
-            if (param.type === SolidityTypes.Address) {
-                value = AbiDecoder._padZeros(new BigNumber(value).toString(16));
-            } else if (
-                param.type === SolidityTypes.Uint256 ||
-                param.type === SolidityTypes.Uint8 ||
-                param.type === SolidityTypes.Uint
-            ) {
-                value = new BigNumber(value);
-            }
-            decodedParams[param.name] = value;
-        });
-
-        return {
-            ...log,
-            event: event.name,
-            args: decodedParams,
-        };
-    }
-    private _addABI(abiArray: Web3.AbiDefinition[]): void {
-        _.map(abiArray, (abi: Web3.AbiDefinition) => {
-            if (abi.type === AbiType.Event) {
-                const signature = `${abi.name}(${_.map(abi.inputs, input => input.type).join(',')})`;
-                const signatureHash = new Web3().sha3(signature);
-                this._methodIds[signatureHash] = abi;
-            }
-        });
-        this._savedABIs = this._savedABIs.concat(abiArray);
-    }
-}
diff --git a/packages/0x.js/src/utils/utils.ts b/packages/0x.js/src/utils/utils.ts
index 42cf5d956..74f2c5995 100644
--- a/packages/0x.js/src/utils/utils.ts
+++ b/packages/0x.js/src/utils/utils.ts
@@ -1,10 +1,11 @@
+import { SolidityTypes } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import BN = require('bn.js');
 import * as ethABI from 'ethereumjs-abi';
 import * as ethUtil from 'ethereumjs-util';
 import * as _ from 'lodash';
 
-import { Order, SignedOrder, SolidityTypes } from '../types';
+import { Order, SignedOrder } from '../types';
 
 export const utils = {
     /**
diff --git a/packages/0x.js/test/0x.js_test.ts b/packages/0x.js/test/0x.js_test.ts
index 927fe20be..5ebb68c8c 100644
--- a/packages/0x.js/test/0x.js_test.ts
+++ b/packages/0x.js/test/0x.js_test.ts
@@ -1,4 +1,4 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
@@ -10,9 +10,8 @@ import { ApprovalContractEventArgs, LogWithDecodedArgs, Order, TokenEvents, Zero
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { TokenUtils } from './utils/token_utils';
-import { web3Factory } from './utils/web3_factory';
 
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle();
 chaiSetup.configure();
 const expect = chai.expect;
 
diff --git a/packages/0x.js/test/assert_test.ts b/packages/0x.js/test/assert_test.ts
index 1f2820070..c4451742f 100644
--- a/packages/0x.js/test/assert_test.ts
+++ b/packages/0x.js/test/assert_test.ts
@@ -1,3 +1,4 @@
+import { web3Factory } from '@0xproject/dev-utils';
 import * as chai from 'chai';
 import 'mocha';
 
@@ -5,7 +6,6 @@ import { ZeroEx } from '../src';
 import { assert } from '../src/utils/assert';
 
 import { constants } from './utils/constants';
-import { web3Factory } from './utils/web3_factory';
 
 const expect = chai.expect;
 
diff --git a/packages/0x.js/test/ether_token_wrapper_test.ts b/packages/0x.js/test/ether_token_wrapper_test.ts
index 145f11bd1..da49ec467 100644
--- a/packages/0x.js/test/ether_token_wrapper_test.ts
+++ b/packages/0x.js/test/ether_token_wrapper_test.ts
@@ -1,4 +1,4 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import 'mocha';
@@ -23,11 +23,10 @@ import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3Factory } from './utils/web3_factory';
 
 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle();
 
 // Since the address depositing/withdrawing ETH/WETH also needs to pay gas costs for the transaction,
 // a small amount of ETH will be used to pay this gas cost. We therefore check that the difference between
@@ -156,7 +155,7 @@ describe('EtherTokenWrapper', () => {
             etherTokenAddress = etherToken.address;
         });
         afterEach(() => {
-            zeroEx.etherToken.unsubscribeAll();
+            zeroEx.etherToken._unsubscribeAll();
         });
         // Hack: Mocha does not allow a test to be both async and have a `done` callback
         // Since we need to await the receipt of the event in the `subscribe` callback,
diff --git a/packages/0x.js/test/event_watcher_test.ts b/packages/0x.js/test/event_watcher_test.ts
index f92fb2b02..93ee9cd1c 100644
--- a/packages/0x.js/test/event_watcher_test.ts
+++ b/packages/0x.js/test/event_watcher_test.ts
@@ -1,3 +1,4 @@
+import { web3Factory } from '@0xproject/dev-utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import * as _ from 'lodash';
@@ -11,7 +12,6 @@ import { DoneCallback } from '../src/types';
 
 import { chaiSetup } from './utils/chai_setup';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
-import { web3Factory } from './utils/web3_factory';
 
 chaiSetup.configure();
 const expect = chai.expect;
diff --git a/packages/0x.js/test/exchange_transfer_simulator_test.ts b/packages/0x.js/test/exchange_transfer_simulator_test.ts
index 20b4a05ca..e85a1640f 100644
--- a/packages/0x.js/test/exchange_transfer_simulator_test.ts
+++ b/packages/0x.js/test/exchange_transfer_simulator_test.ts
@@ -1,4 +1,4 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 
@@ -8,11 +8,10 @@ import { ExchangeTransferSimulator } from '../src/utils/exchange_transfer_simula
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
-import { web3Factory } from './utils/web3_factory';
 
 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle();
 
 describe('ExchangeTransferSimulator', () => {
     const web3 = web3Factory.create();
diff --git a/packages/0x.js/test/exchange_wrapper_test.ts b/packages/0x.js/test/exchange_wrapper_test.ts
index 7e0ffd818..044298601 100644
--- a/packages/0x.js/test/exchange_wrapper_test.ts
+++ b/packages/0x.js/test/exchange_wrapper_test.ts
@@ -1,4 +1,4 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
@@ -25,11 +25,10 @@ import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3Factory } from './utils/web3_factory';
 
 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle();
 
 const NON_EXISTENT_ORDER_HASH = '0x79370342234e7acd6bbeac335bd3bb1d368383294b64b8160a00f4060e4d3777';
 
@@ -922,7 +921,7 @@ describe('ExchangeWrapper', () => {
             );
         });
         afterEach(async () => {
-            zeroEx.exchange.unsubscribeAll();
+            zeroEx.exchange._unsubscribeAll();
         });
         // Hack: Mocha does not allow a test to be both async and have a `done` callback
         // Since we need to await the receipt of the event in the `subscribe` callback,
diff --git a/packages/0x.js/test/expiration_watcher_test.ts b/packages/0x.js/test/expiration_watcher_test.ts
index 770615f88..b49dee8e5 100644
--- a/packages/0x.js/test/expiration_watcher_test.ts
+++ b/packages/0x.js/test/expiration_watcher_test.ts
@@ -1,4 +1,4 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
@@ -13,15 +13,13 @@ import { constants } from '../src/utils/constants';
 import { utils } from '../src/utils/utils';
 
 import { chaiSetup } from './utils/chai_setup';
-import { constants as testConstants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { reportNoErrorCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3Factory } from './utils/web3_factory';
 
 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle(testConstants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle();
 
 describe('ExpirationWatcher', () => {
     let web3: Web3;
diff --git a/packages/0x.js/test/order_state_watcher_test.ts b/packages/0x.js/test/order_state_watcher_test.ts
index 2e9202fe2..9e2ad89e1 100644
--- a/packages/0x.js/test/order_state_watcher_test.ts
+++ b/packages/0x.js/test/order_state_watcher_test.ts
@@ -1,4 +1,4 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
@@ -22,13 +22,12 @@ import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3Factory } from './utils/web3_factory';
 
 const TIMEOUT_MS = 150;
 
 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle();
 
 describe('OrderStateWatcher', () => {
     let web3: Web3;
diff --git a/packages/0x.js/test/order_validation_test.ts b/packages/0x.js/test/order_validation_test.ts
index be3e0590c..934e2e51f 100644
--- a/packages/0x.js/test/order_validation_test.ts
+++ b/packages/0x.js/test/order_validation_test.ts
@@ -1,4 +1,4 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as Sinon from 'sinon';
@@ -13,11 +13,10 @@ import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { TokenUtils } from './utils/token_utils';
-import { web3Factory } from './utils/web3_factory';
 
 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle();
 
 describe('OrderValidation', () => {
     let web3: Web3;
diff --git a/packages/0x.js/test/subscription_test.ts b/packages/0x.js/test/subscription_test.ts
index f4c6f748f..337e2effa 100644
--- a/packages/0x.js/test/subscription_test.ts
+++ b/packages/0x.js/test/subscription_test.ts
@@ -1,4 +1,4 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 import 'mocha';
@@ -11,10 +11,9 @@ import { DoneCallback } from '../src/types';
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { assertNodeCallbackError } from './utils/report_callback_errors';
-import { web3Factory } from './utils/web3_factory';
 
 chaiSetup.configure();
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle();
 
 describe('SubscriptionTest', () => {
     let web3: Web3;
@@ -50,7 +49,7 @@ describe('SubscriptionTest', () => {
             tokenAddress = token.address;
         });
         afterEach(() => {
-            zeroEx.token.unsubscribeAll();
+            zeroEx.token._unsubscribeAll();
             _.each(stubs, s => s.restore());
             stubs = [];
         });
@@ -77,7 +76,7 @@ describe('SubscriptionTest', () => {
                 const callback = (err: Error | null, logEvent?: DecodedLogEvent<ApprovalContractEventArgs>) => _.noop;
                 zeroEx.token.subscribe(tokenAddress, TokenEvents.Approval, indexFilterValues, callback);
                 stubs = [Sinon.stub((zeroEx as any)._web3Wrapper, 'getBlockAsync').throws(new Error('JSON RPC error'))];
-                zeroEx.token.unsubscribeAll();
+                zeroEx.token._unsubscribeAll();
                 done();
             })().catch(done);
         });
diff --git a/packages/0x.js/test/token_registry_wrapper_test.ts b/packages/0x.js/test/token_registry_wrapper_test.ts
index 0a170db8f..fefb99b16 100644
--- a/packages/0x.js/test/token_registry_wrapper_test.ts
+++ b/packages/0x.js/test/token_registry_wrapper_test.ts
@@ -1,4 +1,4 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { schemas, SchemaValidator } from '@0xproject/json-schemas';
 import * as chai from 'chai';
 import * as _ from 'lodash';
@@ -8,11 +8,10 @@ import { Token, ZeroEx } from '../src';
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
-import { web3Factory } from './utils/web3_factory';
 
 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle();
 
 const TOKEN_REGISTRY_SIZE_AFTER_MIGRATION = 7;
 
diff --git a/packages/0x.js/test/token_transfer_proxy_wrapper_test.ts b/packages/0x.js/test/token_transfer_proxy_wrapper_test.ts
index 15bd7a8ba..dc9ec2064 100644
--- a/packages/0x.js/test/token_transfer_proxy_wrapper_test.ts
+++ b/packages/0x.js/test/token_transfer_proxy_wrapper_test.ts
@@ -1,10 +1,10 @@
+import { web3Factory } from '@0xproject/dev-utils';
 import * as chai from 'chai';
 
 import { ZeroEx } from '../src';
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
-import { web3Factory } from './utils/web3_factory';
 
 chaiSetup.configure();
 const expect = chai.expect;
diff --git a/packages/0x.js/test/token_wrapper_test.ts b/packages/0x.js/test/token_wrapper_test.ts
index 4ba1f07c5..34ebe30c2 100644
--- a/packages/0x.js/test/token_wrapper_test.ts
+++ b/packages/0x.js/test/token_wrapper_test.ts
@@ -1,4 +1,4 @@
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
@@ -22,11 +22,10 @@ import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3Factory } from './utils/web3_factory';
 
 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
+const blockchainLifecycle = new BlockchainLifecycle();
 
 describe('TokenWrapper', () => {
     let web3: Web3;
@@ -378,7 +377,7 @@ describe('TokenWrapper', () => {
             tokenAddress = token.address;
         });
         afterEach(() => {
-            zeroEx.token.unsubscribeAll();
+            zeroEx.token._unsubscribeAll();
         });
         // Hack: Mocha does not allow a test to be both async and have a `done` callback
         // Since we need to await the receipt of the event in the `subscribe` callback,
diff --git a/packages/0x.js/test/utils/constants.ts b/packages/0x.js/test/utils/constants.ts
index a9e665c25..cf030259c 100644
--- a/packages/0x.js/test/utils/constants.ts
+++ b/packages/0x.js/test/utils/constants.ts
@@ -1,11 +1,9 @@
 export const constants = {
     NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
-    RPC_URL: 'http://localhost:8545',
     ROPSTEN_NETWORK_ID: 3,
     KOVAN_NETWORK_ID: 42,
     TESTRPC_NETWORK_ID: 50,
     KOVAN_RPC_URL: 'https://kovan.infura.io/',
     ROPSTEN_RPC_URL: 'https://ropsten.infura.io/',
     ZRX_DECIMALS: 18,
-    GAS_ESTIMATE: 500000,
 };
diff --git a/packages/0x.js/test/utils/subproviders/empty_wallet_subprovider.ts b/packages/0x.js/test/utils/subproviders/empty_wallet_subprovider.ts
deleted file mode 100644
index 53f2be83d..000000000
--- a/packages/0x.js/test/utils/subproviders/empty_wallet_subprovider.ts
+++ /dev/null
@@ -1,27 +0,0 @@
-import { JSONRPCPayload } from '../../../src/types';
-
-/*
- * This class implements the web3-provider-engine subprovider interface and returns
- * that the provider has no addresses when queried.
- * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js
- */
-export class EmptyWalletSubprovider {
-    // This method needs to be here to satisfy the interface but linter wants it to be static.
-    // tslint:disable-next-line:prefer-function-over-method
-    public handleRequest(payload: JSONRPCPayload, next: () => void, end: (err: Error | null, result: any) => void) {
-        switch (payload.method) {
-            case 'eth_accounts':
-                end(null, []);
-                return;
-
-            default:
-                next();
-                return;
-        }
-    }
-    // Required to implement this method despite not needing it for this subprovider
-    // tslint:disable-next-line:prefer-function-over-method
-    public setEngine(engine: any) {
-        // noop
-    }
-}
diff --git a/packages/0x.js/test/utils/subproviders/fake_gas_estimate_subprovider.ts b/packages/0x.js/test/utils/subproviders/fake_gas_estimate_subprovider.ts
deleted file mode 100644
index e1113a851..000000000
--- a/packages/0x.js/test/utils/subproviders/fake_gas_estimate_subprovider.ts
+++ /dev/null
@@ -1,34 +0,0 @@
-import { JSONRPCPayload } from '../../../src/types';
-
-/*
- * This class implements the web3-provider-engine subprovider interface and returns
- * the constant gas estimate when queried.
- * HACK: We need this so that our tests don't use testrpc gas estimation which sometimes kills the node.
- * Source: https://github.com/trufflesuite/ganache-cli/issues/417
- * Source: https://github.com/trufflesuite/ganache-cli/issues/437
- * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js
- */
-export class FakeGasEstimateSubprovider {
-    private _constantGasAmount: number;
-    constructor(constantGasAmount: number) {
-        this._constantGasAmount = constantGasAmount;
-    }
-    // This method needs to be here to satisfy the interface but linter wants it to be static.
-    // tslint:disable-next-line:prefer-function-over-method
-    public handleRequest(payload: JSONRPCPayload, next: () => void, end: (err: Error | null, result: any) => void) {
-        switch (payload.method) {
-            case 'eth_estimateGas':
-                end(null, this._constantGasAmount);
-                return;
-
-            default:
-                next();
-                return;
-        }
-    }
-    // Required to implement this method despite not needing it for this subprovider
-    // tslint:disable-next-line:prefer-function-over-method
-    public setEngine(engine: any) {
-        // noop
-    }
-}
diff --git a/packages/0x.js/test/utils/web3_factory.ts b/packages/0x.js/test/utils/web3_factory.ts
deleted file mode 100644
index 26c26e03d..000000000
--- a/packages/0x.js/test/utils/web3_factory.ts
+++ /dev/null
@@ -1,42 +0,0 @@
-// HACK: web3 injects XMLHttpRequest into the global scope and ProviderEngine checks XMLHttpRequest
-// to know whether it is running in a browser or node environment. We need it to be undefined since
-// we are not running in a browser env.
-// Filed issue: https://github.com/ethereum/web3.js/issues/844
-(global as any).XMLHttpRequest = undefined;
-import ProviderEngine = require('web3-provider-engine');
-import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
-
-import { EmptyWalletSubprovider } from './subproviders/empty_wallet_subprovider';
-import { FakeGasEstimateSubprovider } from './subproviders/fake_gas_estimate_subprovider';
-
-import { constants } from './constants';
-
-// HACK: web3 leaks XMLHttpRequest into the global scope and causes requests to hang
-// because they are using the wrong XHR package.
-// importing web3 after subproviders fixes this issue
-// Filed issue: https://github.com/ethereum/web3.js/issues/844
-// tslint:disable-next-line:ordered-imports
-import * as Web3 from 'web3';
-
-export const web3Factory = {
-    create(hasAddresses: boolean = true): Web3 {
-        const provider = this.getRpcProvider(hasAddresses);
-        const web3 = new Web3();
-        web3.setProvider(provider);
-        return web3;
-    },
-    getRpcProvider(hasAddresses: boolean = true): Web3.Provider {
-        const provider = new ProviderEngine();
-        if (!hasAddresses) {
-            provider.addProvider(new EmptyWalletSubprovider());
-        }
-        provider.addProvider(new FakeGasEstimateSubprovider(constants.GAS_ESTIMATE));
-        provider.addProvider(
-            new RpcSubprovider({
-                rpcUrl: constants.RPC_URL,
-            }),
-        );
-        provider.start();
-        return provider;
-    },
-};