Move more shared utils into utils package and reuse them

2017-12-08 18:01:40 +03:00
parent 6120a43fff
commit cb596c1413
29 changed files with 41 additions and 171 deletions
--- a/packages/0x.js/src/0x.ts
+++ b/packages/0x.js/src/0x.ts
@@ -1,11 +1,11 @@
 import {schemas, SchemaValidator} from '@0xproject/json-schemas';
+import {intervalUtils, bigNumberConfigs} from '@0xproject/utils';
 import {Web3Wrapper} from '@0xproject/web3-wrapper';
 import BigNumber from 'bignumber.js';
 import * as ethUtil from 'ethereumjs-util';
 import * as _ from 'lodash';

 import {artifacts} from './artifacts';
-import {bigNumberConfigs} from './bignumber_config';
 import {EtherTokenWrapper} from './contract_wrappers/ether_token_wrapper';
 import {ExchangeWrapper} from './contract_wrappers/exchange_wrapper';
 import {TokenRegistryWrapper} from './contract_wrappers/token_registry_wrapper';
@@ -26,7 +26,6 @@ import {
 import {AbiDecoder} from './utils/abi_decoder';
 import {assert} from './utils/assert';
 import {constants} from './utils/constants';
-import {intervalUtils} from './utils/interval_utils';
 import {OrderStateUtils} from './utils/order_state_utils';
 import {signatureUtils} from './utils/signature_utils';
 import {utils} from './utils/utils';
--- a/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
@@ -1,3 +1,4 @@
+import {intervalUtils} from '@0xproject/utils';
 import {Web3Wrapper} from '@0xproject/web3-wrapper';
 import {Block, BlockAndLogStreamer} from 'ethereumjs-blockstream';
 import * as _ from 'lodash';
@@ -19,7 +20,6 @@ import {
 import {AbiDecoder} from '../utils/abi_decoder';
 import {constants} from '../utils/constants';
 import {filterUtils} from '../utils/filter_utils';
-import {intervalUtils} from '../utils/interval_utils';

 const CONTRACT_NAME_TO_NOT_FOUND_ERROR: {[contractName: string]: ZeroExError} = {
    ZRX: ZeroExError.ZRXContractDoesNotExist,
--- a/packages/0x.js/src/order_watcher/event_watcher.ts
+++ b/packages/0x.js/src/order_watcher/event_watcher.ts
@@ -1,3 +1,4 @@
+import {intervalUtils} from '@0xproject/utils';
 import {Web3Wrapper} from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import * as Web3 from 'web3';
@@ -10,7 +11,6 @@ import {
 } from '../types';
 import {AbiDecoder} from '../utils/abi_decoder';
 import {assert} from '../utils/assert';
-import {intervalUtils} from '../utils/interval_utils';
 import {utils} from '../utils/utils';

 const DEFAULT_EVENT_POLLING_INTERVAL_MS = 200;
--- a/packages/0x.js/src/order_watcher/expiration_watcher.ts
+++ b/packages/0x.js/src/order_watcher/expiration_watcher.ts
@@ -1,10 +1,10 @@
+import {intervalUtils} from '@0xproject/utils';
 import {BigNumber} from 'bignumber.js';
 import {RBTree} from 'bintrees';
 import * as _ from 'lodash';

 import {ZeroEx} from '../0x';
 import {SignedOrder, ZeroExError} from '../types';
-import {intervalUtils} from '../utils/interval_utils';
 import {utils} from '../utils/utils';

 const DEFAULT_EXPIRATION_MARGIN_MS = 0;
--- a/packages/0x.js/src/order_watcher/order_state_watcher.ts
+++ b/packages/0x.js/src/order_watcher/order_state_watcher.ts
@@ -1,4 +1,5 @@
 import {schemas} from '@0xproject/json-schemas';
+import {intervalUtils} from '@0xproject/utils';
 import {Web3Wrapper} from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';

@@ -29,7 +30,6 @@ import {
 } from '../types';
 import {AbiDecoder} from '../utils/abi_decoder';
 import {assert} from '../utils/assert';
-import {intervalUtils} from '../utils/interval_utils';
 import {OrderStateUtils} from '../utils/order_state_utils';
 import {utils} from '../utils/utils';

--- a/packages/0x.js/test/0x.js_test.ts
+++ b/packages/0x.js/test/0x.js_test.ts
@@ -1,3 +1,4 @@
+import {BlockchainLifecycle} from '@0xproject/dev-utils';
 import BigNumber from 'bignumber.js';
 import * as chai from 'chai';
 import * as _ from 'lodash';
@@ -6,13 +7,12 @@ import * as Sinon from 'sinon';

 import {ApprovalContractEventArgs, LogWithDecodedArgs, Order, TokenEvents, ZeroEx, ZeroExError} from '../src';

-import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 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();
+const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
 chaiSetup.configure();
 const expect = chai.expect;

--- a/packages/0x.js/test/ether_token_wrapper_test.ts
+++ b/packages/0x.js/test/ether_token_wrapper_test.ts
@@ -1,3 +1,4 @@
+import {BlockchainLifecycle} from '@0xproject/dev-utils';
 import BigNumber from 'bignumber.js';
 import * as chai from 'chai';
 import 'mocha';
@@ -5,14 +6,13 @@ import * as Web3 from 'web3';

 import {ZeroEx, ZeroExError} from '../src';

-import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 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();
+const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);

 // 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
--- a/packages/0x.js/test/exchange_transfer_simulator_test.ts
+++ b/packages/0x.js/test/exchange_transfer_simulator_test.ts
@@ -1,3 +1,4 @@
+import {BlockchainLifecycle} from '@0xproject/dev-utils';
 import BigNumber from 'bignumber.js';
 import * as chai from 'chai';

@@ -5,14 +6,13 @@ import {ExchangeContractErrs, Token, ZeroEx} from '../src';
 import {BlockParamLiteral, TradeSide, TransferType} from '../src/types';
 import {ExchangeTransferSimulator} from '../src/utils/exchange_transfer_simulator';

-import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 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();
+const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);

 describe('ExchangeTransferSimulator', () => {
    const web3 = web3Factory.create();
--- a/packages/0x.js/test/exchange_wrapper_test.ts
+++ b/packages/0x.js/test/exchange_wrapper_test.ts
@@ -1,3 +1,4 @@
+import {BlockchainLifecycle} from '@0xproject/dev-utils';
 import BigNumber from 'bignumber.js';
 import * as chai from 'chai';
 import 'mocha';
@@ -19,7 +20,6 @@ import {
 } from '../src';
 import {BlockParamLiteral, DoneCallback} from '../src/types';

-import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 import {chaiSetup} from './utils/chai_setup';
 import {constants} from './utils/constants';
 import {FillScenarios} from './utils/fill_scenarios';
@@ -28,7 +28,7 @@ import {web3Factory} from './utils/web3_factory';

 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle();
+const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);

 const NON_EXISTENT_ORDER_HASH = '0x79370342234e7acd6bbeac335bd3bb1d368383294b64b8160a00f4060e4d3777';

--- a/packages/0x.js/test/expiration_watcher_test.ts
+++ b/packages/0x.js/test/expiration_watcher_test.ts
@@ -1,3 +1,4 @@
+import {BlockchainLifecycle} from '@0xproject/dev-utils';
 import {Web3Wrapper} from '@0xproject/web3-wrapper';
 import BigNumber from 'bignumber.js';
 import * as chai from 'chai';
@@ -12,8 +13,8 @@ import {DoneCallback, Token} from '../src/types';
 import {constants} from '../src/utils/constants';
 import {utils} from '../src/utils/utils';

-import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 import {chaiSetup} from './utils/chai_setup';
+import {constants as testConstants} from './utils/constants';
 import {FillScenarios} from './utils/fill_scenarios';
 import {reportCallbackErrors} from './utils/report_callback_errors';
 import {TokenUtils} from './utils/token_utils';
@@ -21,7 +22,7 @@ import {web3Factory} from './utils/web3_factory';

 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle();
+const blockchainLifecycle = new BlockchainLifecycle(testConstants.RPC_URL);

 describe('ExpirationWatcher', () => {
    let web3: Web3;
--- a/packages/0x.js/test/order_state_watcher_test.ts
+++ b/packages/0x.js/test/order_state_watcher_test.ts
@@ -1,3 +1,4 @@
+import {BlockchainLifecycle} from '@0xproject/dev-utils';
 import {Web3Wrapper} from '@0xproject/web3-wrapper';
 import BigNumber from 'bignumber.js';
 import * as chai from 'chai';
@@ -21,7 +22,6 @@ import {
 import {OrderStateWatcher} from '../src/order_watcher/order_state_watcher';
 import {DoneCallback} from '../src/types';

-import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 import {chaiSetup} from './utils/chai_setup';
 import {constants} from './utils/constants';
 import {FillScenarios} from './utils/fill_scenarios';
@@ -33,7 +33,7 @@ const TIMEOUT_MS = 150;

 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle();
+const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);

 describe('OrderStateWatcher', () => {
    let web3: Web3;
--- a/packages/0x.js/test/order_validation_test.ts
+++ b/packages/0x.js/test/order_validation_test.ts
@@ -1,3 +1,4 @@
+import {BlockchainLifecycle} from '@0xproject/dev-utils';
 import BigNumber from 'bignumber.js';
 import * as chai from 'chai';
 import * as Sinon from 'sinon';
@@ -8,7 +9,6 @@ import {BlockParamLiteral, TradeSide, TransferType} from '../src/types';
 import {ExchangeTransferSimulator} from '../src/utils/exchange_transfer_simulator';
 import {OrderValidationUtils} from '../src/utils/order_validation_utils';

-import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 import {chaiSetup} from './utils/chai_setup';
 import {constants} from './utils/constants';
 import {FillScenarios} from './utils/fill_scenarios';
@@ -17,7 +17,7 @@ import {web3Factory} from './utils/web3_factory';

 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle();
+const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);

 describe('OrderValidation', () => {
    let web3: Web3;
--- a/packages/0x.js/test/subscription_test.ts
+++ b/packages/0x.js/test/subscription_test.ts
@@ -1,3 +1,4 @@
+import {BlockchainLifecycle} from '@0xproject/dev-utils';
 import BigNumber from 'bignumber.js';
 import * as chai from 'chai';
 import * as _ from 'lodash';
@@ -15,7 +16,6 @@ import {
 } from '../src';
 import {BlockParamLiteral, DoneCallback} from '../src/types';

-import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 import {chaiSetup} from './utils/chai_setup';
 import {constants} from './utils/constants';
 import {reportCallbackErrors} from './utils/report_callback_errors';
@@ -24,7 +24,7 @@ import {web3Factory} from './utils/web3_factory';

 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle();
+const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);

 describe('SubscriptionTest', () => {
    let web3: Web3;
--- a/packages/0x.js/test/token_registry_wrapper_test.ts
+++ b/packages/0x.js/test/token_registry_wrapper_test.ts
@@ -1,18 +1,18 @@
 import {schemas, SchemaValidator} from '@0xproject/json-schemas';
+import {BlockchainLifecycle} from '@0xproject/dev-utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';

 import {Token, ZeroEx} from '../src';

-import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 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();
+const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);

 const TOKEN_REGISTRY_SIZE_AFTER_MIGRATION = 7;

--- a/packages/0x.js/test/token_wrapper_test.ts
+++ b/packages/0x.js/test/token_wrapper_test.ts
@@ -1,4 +1,5 @@
 import {promisify} from '@0xproject/utils';
+import {BlockchainLifecycle} from '@0xproject/dev-utils';
 import {Web3Wrapper} from '@0xproject/web3-wrapper';
 import BigNumber from 'bignumber.js';
 import * as chai from 'chai';
@@ -21,7 +22,6 @@ import {
 } from '../src';
 import {BlockParamLiteral, DoneCallback} from '../src/types';

-import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 import {chaiSetup} from './utils/chai_setup';
 import {constants} from './utils/constants';
 import {TokenUtils} from './utils/token_utils';
@@ -29,7 +29,7 @@ import {web3Factory} from './utils/web3_factory';

 chaiSetup.configure();
 const expect = chai.expect;
-const blockchainLifecycle = new BlockchainLifecycle();
+const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);

 describe('TokenWrapper', () => {
    let web3: Web3;
--- a/packages/0x.js/test/utils/blockchain_lifecycle.ts
+++ b/packages/0x.js/test/utils/blockchain_lifecycle.ts
@@ -1,26 +0,0 @@
-import {RPC} from './rpc';
-
-export class BlockchainLifecycle {
-    private rpc: RPC;
-    private snapshotIdsStack: number[];
-    constructor() {
-        this.rpc = new RPC();
-        this.snapshotIdsStack = [];
-    }
-    // TODO: In order to run these tests on an actual node, we should check if we are running against
-    // TestRPC, if so, use snapshots, otherwise re-deploy contracts before every test
-    public async startAsync(): Promise<void> {
-        const snapshotId = await this.rpc.takeSnapshotAsync();
-        this.snapshotIdsStack.push(snapshotId);
-    }
-    public async revertAsync(): Promise<void> {
-        const snapshotId = this.snapshotIdsStack.pop() as number;
-        const didRevert = await this.rpc.revertSnapshotAsync(snapshotId);
-        if (!didRevert) {
-            throw new Error(`Snapshot with id #${snapshotId} failed to revert`);
-        }
-    }
-    public async mineABlock(): Promise<void> {
-        await this.rpc.mineBlockAsync();
-    }
-}
--- a/packages/0x.js/test/utils/constants.ts
+++ b/packages/0x.js/test/utils/constants.ts
@@ -1,7 +1,6 @@
 export const constants = {
    NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
-    RPC_HOST: 'localhost',
-    RPC_PORT: 8545,
+    RPC_URL: 'http://localhost:8545',
    ROPSTEN_NETWORK_ID: 3,
    KOVAN_NETWORK_ID: 42,
    TESTRPC_NETWORK_ID: 50,
--- a/packages/0x.js/test/utils/rpc.ts
+++ b/packages/0x.js/test/utils/rpc.ts
@@ -1,58 +0,0 @@
-import * as ethUtil from 'ethereumjs-util';
-import * as request from 'request-promise-native';
-
-import {constants} from './constants';
-
-export class RPC {
-    private host: string;
-    private port: number;
-    private id: number;
-    constructor() {
-        this.host = constants.RPC_HOST;
-        this.port = constants.RPC_PORT;
-        this.id = 0;
-    }
-    public async takeSnapshotAsync(): Promise<number> {
-        const method = 'evm_snapshot';
-        const params: any[] = [];
-        const payload = this.toPayload(method, params);
-        const snapshotIdHex = await this.sendAsync(payload);
-        const snapshotId = ethUtil.bufferToInt(ethUtil.toBuffer(snapshotIdHex));
-        return snapshotId;
-    }
-    public async revertSnapshotAsync(snapshotId: number): Promise<boolean> {
-        const method = 'evm_revert';
-        const params = [snapshotId];
-        const payload = this.toPayload(method, params);
-        const didRevert = await this.sendAsync(payload);
-        return didRevert;
-    }
-    public async mineBlockAsync(): Promise<void> {
-        const method = 'evm_mine';
-        const params: any[] = [];
-        const payload = this.toPayload(method, params);
-        await this.sendAsync(payload);
-    }
-    private toPayload(method: string, params: any[] = []): string {
-        const payload = JSON.stringify({
-            id: this.id,
-            method,
-            params,
-        });
-        this.id += 1;
-        return payload;
-    }
-    private async sendAsync(payload: string): Promise<any> {
-        const opts = {
-            method: 'POST',
-            uri: `http://${this.host}:${this.port}`,
-            body: payload,
-            headers: {
-                'content-type': 'application/json',
-            },
-        };
-        const bodyString = await request(opts);
-        const body = JSON.parse(bodyString);
-        return body.result;
-    }
-}
--- a/packages/0x.js/test/utils/web3_factory.ts
+++ b/packages/0x.js/test/utils/web3_factory.ts
@@ -21,13 +21,12 @@ export const web3Factory = {
    },
    getRpcProvider(hasAddresses: boolean = true): Web3.Provider {
        const provider = new ProviderEngine();
-        const rpcUrl = `http://${constants.RPC_HOST}:${constants.RPC_PORT}`;
        if (!hasAddresses) {
            provider.addProvider(new EmptyWalletSubprovider());
        }
        provider.addProvider(new FakeGasEstimateSubprovider(constants.GAS_ESTIMATE));
        provider.addProvider(new RpcSubprovider({
-            rpcUrl,
+            rpcUrl: constants.RPC_URL,
        }));
        provider.start();
        return provider;
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -29,6 +29,7 @@
  },
  "homepage": "https://github.com/0xProject/0x.js/packages/contracts/README.md",
  "devDependencies": {
+    "@0xproject/dev-utils": "^0.0.1",
    "@0xproject/tslint-config": "^0.2.1",
    "@0xproject/types": "^0.1.0",
    "@types/bluebird": "^3.5.3",
--- a/packages/contracts/test/ts/multi_sig_with_time_lock.ts
+++ b/packages/contracts/test/ts/multi_sig_with_time_lock.ts
@@ -1,13 +1,14 @@
+import {RPC} from '@0xproject/dev-utils';
 import {promisify} from '@0xproject/utils';
 import {BigNumber} from 'bignumber.js';
 import * as chai from 'chai';
 import Web3 = require('web3');

 import * as multiSigWalletJSON from '../../build/contracts/MultiSigWalletWithTimeLock.json';
+import * as truffleConf from '../../truffle.js';
 import {Artifacts} from '../../util/artifacts';
 import {constants} from '../../util/constants';
 import {MultiSigWrapper} from '../../util/multi_sig_wrapper';
-import {RPC} from '../../util/rpc';
 import {ContractInstance} from '../../util/types';

 import {chaiSetup} from './utils/chai_setup';
@@ -38,7 +39,8 @@ contract('MultiSigWalletWithTimeLock', (accounts: string[]) => {

        const secondsTimeLocked = await multiSig.secondsTimeLocked.call();
        initialSecondsTimeLocked = secondsTimeLocked.toNumber();
-        rpc = new RPC();
+        const rpcUrl = `http://${truffleConf.networks.development.host}:${truffleConf.networks.development.port}`;
+        rpc = new RPC(rpcUrl);
    });

    describe('changeTimeLock', () => {
--- a/packages/contracts/util/balances.ts
+++ b/packages/contracts/util/balances.ts
@@ -1,7 +1,7 @@
+import {bigNumberConfigs} from '@0xproject/utils';
 import {BigNumber} from 'bignumber.js';
 import * as _ from 'lodash';

-import {bigNumberConfigs} from './bignumber_config';
 import {BalancesByOwner, ContractInstance} from './types';

 bigNumberConfigs.configure();
--- a/packages/contracts/util/bignumber_config.ts
+++ b/packages/contracts/util/bignumber_config.ts
@@ -1,11 +0,0 @@
-import {BigNumber} from 'bignumber.js';
-
-export const bigNumberConfigs = {
-    configure() {
-        // By default BigNumber's `toString` method converts to exponential notation if the value has
-        // more then 20 digits. We want to avoid this behavior, so we set EXPONENTIAL_AT to a high number
-        BigNumber.config({
-            EXPONENTIAL_AT: 1000,
-        });
-    },
-};
--- a/packages/contracts/util/rpc.ts
+++ b/packages/contracts/util/rpc.ts
@@ -1,43 +0,0 @@
-import 'isomorphic-fetch';
-
-import * as truffleConf from '../truffle.js';
-
-export class RPC {
-    private host: string;
-    private port: number;
-    private id: number;
-    constructor() {
-        this.host = truffleConf.networks.development.host;
-        this.port = truffleConf.networks.development.port;
-        this.id = 0;
-    }
-    public async increaseTimeAsync(time: number) {
-        const method = 'evm_increaseTime';
-        const params = [time];
-        const payload = this.toPayload(method, params);
-        return this.sendAsync(payload);
-    }
-    public async mineBlockAsync() {
-        const method = 'evm_mine';
-        const payload = this.toPayload(method);
-        return this.sendAsync(payload);
-    }
-    private toPayload(method: string, params: any[] = []) {
-        const payload = JSON.stringify({
-            id: this.id,
-            method,
-            params,
-        });
-        this.id++;
-        return payload;
-    }
-    private async sendAsync(payload: string): Promise<any> {
-        const opts = {
-            method: 'POST',
-            body: payload,
-        };
-        const response = await fetch(`http://${this.host}:${this.port}`, opts);
-        const responsePayload = await response.json();
-        return responsePayload;
-    }
-}
--- a/packages/types/src/index.ts
+++ b/packages/types/src/index.ts
@@ -8,6 +8,10 @@ export interface TxData {
    nonce?: number;
 }

+export interface TxDataPayable extends TxData {
+    value?: BigNumber;
+}
+
 export interface TransactionReceipt {
    blockHash: string;
    blockNumber: number;
--- a/packages/utils/src/bignumber_config.ts
+++ b/packages/utils/src/bignumber_config.ts
--- a/packages/0x.js/src/utils/class_utils.ts
+++ b/packages/0x.js/src/utils/class_utils.ts
--- a/packages/utils/src/index.ts
+++ b/packages/utils/src/index.ts
@@ -1,2 +1,5 @@
 export {promisify} from './promisify';
 export {addressUtils} from './address_utils';
+export {classUtils} from './class_utils';
+export {intervalUtils} from './interval_utils';
+export {bigNumberConfigs} from './bignumber_config';
--- a/packages/0x.js/src/utils/interval_utils.ts
+++ b/packages/0x.js/src/utils/interval_utils.ts