Add config file specifically in prettier command and fix files

13 files changed, 409 insertions, 409 deletions

diff --git a/packages/connect/test/fixtures/standard_relayer_api/fees.json b/packages/connect/test/fixtures/standard_relayer_api/fees.json
index 9f24e93d2..483a74254 100644
--- a/packages/connect/test/fixtures/standard_relayer_api/fees.json
+++ b/packages/connect/test/fixtures/standard_relayer_api/fees.json
@@ -1,5 +1,5 @@
 {
-	"feeRecipient": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
-	"makerFee": "10000000000000000",
-	"takerFee": "30000000000000000"
+    "feeRecipient": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
+    "makerFee": "10000000000000000",
+    "takerFee": "30000000000000000"
 }
diff --git a/packages/connect/test/fixtures/standard_relayer_api/fees.ts b/packages/connect/test/fixtures/standard_relayer_api/fees.ts
index 03981031a..fecbaacff 100644
--- a/packages/connect/test/fixtures/standard_relayer_api/fees.ts
+++ b/packages/connect/test/fixtures/standard_relayer_api/fees.ts
@@ -3,7 +3,7 @@ import { BigNumber } from '@0xproject/utils';
 import { FeesResponse } from '../../../src/types';
 
 export const feesResponse: FeesResponse = {
-	feeRecipient: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
-	makerFee: new BigNumber('10000000000000000'),
-	takerFee: new BigNumber('30000000000000000'),
+    feeRecipient: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
+    makerFee: new BigNumber('10000000000000000'),
+    takerFee: new BigNumber('30000000000000000'),
 };
diff --git a/packages/connect/test/fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f.json b/packages/connect/test/fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f.json
index c0423bf49..e84954b0d 100644
--- a/packages/connect/test/fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f.json
+++ b/packages/connect/test/fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f.json
@@ -1,19 +1,19 @@
 {
-	"maker": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
-	"taker": "0xa2b31dacf30a9c50ca473337c01d8a201ae33e32",
-	"makerFee": "100000000000000",
-	"takerFee": "200000000000000",
-	"makerTokenAmount": "10000000000000000",
-	"takerTokenAmount": "20000000000000000",
-	"makerTokenAddress": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
-	"takerTokenAddress": "0xef7fff64389b814a946f3e92105513705ca6b990",
-	"salt": "256",
-	"feeRecipient": "0xb046140686d052fff581f63f8136cce132e857da",
-	"exchangeContractAddress": "0x12459c951127e0c374ff9105dda097662a027093",
-	"expirationUnixTimestampSec": "42",
-	"ecSignature": {
-		"v": 27,
-		"r": "0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33",
-		"s": "0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254"
-	}
+    "maker": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
+    "taker": "0xa2b31dacf30a9c50ca473337c01d8a201ae33e32",
+    "makerFee": "100000000000000",
+    "takerFee": "200000000000000",
+    "makerTokenAmount": "10000000000000000",
+    "takerTokenAmount": "20000000000000000",
+    "makerTokenAddress": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
+    "takerTokenAddress": "0xef7fff64389b814a946f3e92105513705ca6b990",
+    "salt": "256",
+    "feeRecipient": "0xb046140686d052fff581f63f8136cce132e857da",
+    "exchangeContractAddress": "0x12459c951127e0c374ff9105dda097662a027093",
+    "expirationUnixTimestampSec": "42",
+    "ecSignature": {
+        "v": 27,
+        "r": "0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33",
+        "s": "0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254"
+    }
 }
diff --git a/packages/connect/test/fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f.ts b/packages/connect/test/fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f.ts
index 459a87919..5a03a2ff6 100644
--- a/packages/connect/test/fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f.ts
+++ b/packages/connect/test/fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f.ts
@@ -1,21 +1,21 @@
 import { BigNumber } from '@0xproject/utils';
 
 export const orderResponse = {
-	maker: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
-	taker: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
-	makerFee: new BigNumber('100000000000000'),
-	takerFee: new BigNumber('200000000000000'),
-	makerTokenAmount: new BigNumber('10000000000000000'),
-	takerTokenAmount: new BigNumber('20000000000000000'),
-	makerTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
-	takerTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
-	salt: new BigNumber('256'),
-	feeRecipient: '0xb046140686d052fff581f63f8136cce132e857da',
-	exchangeContractAddress: '0x12459c951127e0c374ff9105dda097662a027093',
-	expirationUnixTimestampSec: new BigNumber('42'),
-	ecSignature: {
-		v: 27,
-		r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
-		s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
-	},
+    maker: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
+    taker: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
+    makerFee: new BigNumber('100000000000000'),
+    takerFee: new BigNumber('200000000000000'),
+    makerTokenAmount: new BigNumber('10000000000000000'),
+    takerTokenAmount: new BigNumber('20000000000000000'),
+    makerTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
+    takerTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
+    salt: new BigNumber('256'),
+    feeRecipient: '0xb046140686d052fff581f63f8136cce132e857da',
+    exchangeContractAddress: '0x12459c951127e0c374ff9105dda097662a027093',
+    expirationUnixTimestampSec: new BigNumber('42'),
+    ecSignature: {
+        v: 27,
+        r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
+        s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
+    },
 };
diff --git a/packages/connect/test/fixtures/standard_relayer_api/orderbook.json b/packages/connect/test/fixtures/standard_relayer_api/orderbook.json
index 569498312..825be34c2 100644
--- a/packages/connect/test/fixtures/standard_relayer_api/orderbook.json
+++ b/packages/connect/test/fixtures/standard_relayer_api/orderbook.json
@@ -1,44 +1,44 @@
 {
-	"bids": [
-		{
-			"maker": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
-			"taker": "0xa2b31dacf30a9c50ca473337c01d8a201ae33e32",
-			"makerFee": "100000000000000",
-			"takerFee": "200000000000000",
-			"makerTokenAmount": "10000000000000000",
-			"takerTokenAmount": "20000000000000000",
-			"makerTokenAddress": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
-			"takerTokenAddress": "0xef7fff64389b814a946f3e92105513705ca6b990",
-			"salt": "256",
-			"feeRecipient": "0xb046140686d052fff581f63f8136cce132e857da",
-			"exchangeContractAddress": "0x12459c951127e0c374ff9105dda097662a027093",
-			"expirationUnixTimestampSec": "42",
-			"ecSignature": {
-				"v": 27,
-				"r": "0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33",
-				"s": "0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254"
-			}
-		}
-	],
-	"asks": [
-		{
-			"maker": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
-			"taker": "0xa2b31dacf30a9c50ca473337c01d8a201ae33e32",
-			"makerFee": "100000000000000",
-			"takerFee": "200000000000000",
-			"makerTokenAmount": "10000000000000000",
-			"takerTokenAmount": "20000000000000000",
-			"makerTokenAddress": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
-			"takerTokenAddress": "0xef7fff64389b814a946f3e92105513705ca6b990",
-			"salt": "256",
-			"feeRecipient": "0xb046140686d052fff581f63f8136cce132e857da",
-			"exchangeContractAddress": "0x12459c951127e0c374ff9105dda097662a027093",
-			"expirationUnixTimestampSec": "42",
-			"ecSignature": {
-				"v": 27,
-				"r": "0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33",
-				"s": "0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254"
-			}
-		}
-	]
+    "bids": [
+        {
+            "maker": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
+            "taker": "0xa2b31dacf30a9c50ca473337c01d8a201ae33e32",
+            "makerFee": "100000000000000",
+            "takerFee": "200000000000000",
+            "makerTokenAmount": "10000000000000000",
+            "takerTokenAmount": "20000000000000000",
+            "makerTokenAddress": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
+            "takerTokenAddress": "0xef7fff64389b814a946f3e92105513705ca6b990",
+            "salt": "256",
+            "feeRecipient": "0xb046140686d052fff581f63f8136cce132e857da",
+            "exchangeContractAddress": "0x12459c951127e0c374ff9105dda097662a027093",
+            "expirationUnixTimestampSec": "42",
+            "ecSignature": {
+                "v": 27,
+                "r": "0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33",
+                "s": "0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254"
+            }
+        }
+    ],
+    "asks": [
+        {
+            "maker": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
+            "taker": "0xa2b31dacf30a9c50ca473337c01d8a201ae33e32",
+            "makerFee": "100000000000000",
+            "takerFee": "200000000000000",
+            "makerTokenAmount": "10000000000000000",
+            "takerTokenAmount": "20000000000000000",
+            "makerTokenAddress": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
+            "takerTokenAddress": "0xef7fff64389b814a946f3e92105513705ca6b990",
+            "salt": "256",
+            "feeRecipient": "0xb046140686d052fff581f63f8136cce132e857da",
+            "exchangeContractAddress": "0x12459c951127e0c374ff9105dda097662a027093",
+            "expirationUnixTimestampSec": "42",
+            "ecSignature": {
+                "v": 27,
+                "r": "0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33",
+                "s": "0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254"
+            }
+        }
+    ]
 }
diff --git a/packages/connect/test/fixtures/standard_relayer_api/orderbook.ts b/packages/connect/test/fixtures/standard_relayer_api/orderbook.ts
index 90d3d9220..6684ac2e5 100644
--- a/packages/connect/test/fixtures/standard_relayer_api/orderbook.ts
+++ b/packages/connect/test/fixtures/standard_relayer_api/orderbook.ts
@@ -1,46 +1,46 @@
 import { BigNumber } from '@0xproject/utils';
 
 export const orderbookResponse = {
-	bids: [
-		{
-			maker: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
-			taker: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
-			makerFee: new BigNumber('100000000000000'),
-			takerFee: new BigNumber('200000000000000'),
-			makerTokenAmount: new BigNumber('10000000000000000'),
-			takerTokenAmount: new BigNumber('20000000000000000'),
-			makerTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
-			takerTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
-			salt: new BigNumber('256'),
-			feeRecipient: '0xb046140686d052fff581f63f8136cce132e857da',
-			exchangeContractAddress: '0x12459c951127e0c374ff9105dda097662a027093',
-			expirationUnixTimestampSec: new BigNumber('42'),
-			ecSignature: {
-				v: 27,
-				r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
-				s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
-			},
-		},
-	],
-	asks: [
-		{
-			maker: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
-			taker: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
-			makerFee: new BigNumber('100000000000000'),
-			takerFee: new BigNumber('200000000000000'),
-			makerTokenAmount: new BigNumber('10000000000000000'),
-			takerTokenAmount: new BigNumber('20000000000000000'),
-			makerTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
-			takerTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
-			salt: new BigNumber('256'),
-			feeRecipient: '0xb046140686d052fff581f63f8136cce132e857da',
-			exchangeContractAddress: '0x12459c951127e0c374ff9105dda097662a027093',
-			expirationUnixTimestampSec: new BigNumber('42'),
-			ecSignature: {
-				v: 27,
-				r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
-				s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
-			},
-		},
-	],
+    bids: [
+        {
+            maker: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
+            taker: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
+            makerFee: new BigNumber('100000000000000'),
+            takerFee: new BigNumber('200000000000000'),
+            makerTokenAmount: new BigNumber('10000000000000000'),
+            takerTokenAmount: new BigNumber('20000000000000000'),
+            makerTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
+            takerTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
+            salt: new BigNumber('256'),
+            feeRecipient: '0xb046140686d052fff581f63f8136cce132e857da',
+            exchangeContractAddress: '0x12459c951127e0c374ff9105dda097662a027093',
+            expirationUnixTimestampSec: new BigNumber('42'),
+            ecSignature: {
+                v: 27,
+                r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
+                s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
+            },
+        },
+    ],
+    asks: [
+        {
+            maker: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
+            taker: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
+            makerFee: new BigNumber('100000000000000'),
+            takerFee: new BigNumber('200000000000000'),
+            makerTokenAmount: new BigNumber('10000000000000000'),
+            takerTokenAmount: new BigNumber('20000000000000000'),
+            makerTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
+            takerTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
+            salt: new BigNumber('256'),
+            feeRecipient: '0xb046140686d052fff581f63f8136cce132e857da',
+            exchangeContractAddress: '0x12459c951127e0c374ff9105dda097662a027093',
+            expirationUnixTimestampSec: new BigNumber('42'),
+            ecSignature: {
+                v: 27,
+                r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
+                s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
+            },
+        },
+    ],
 };
diff --git a/packages/connect/test/fixtures/standard_relayer_api/orders.json b/packages/connect/test/fixtures/standard_relayer_api/orders.json
index 97d21abd8..cfa780dc4 100644
--- a/packages/connect/test/fixtures/standard_relayer_api/orders.json
+++ b/packages/connect/test/fixtures/standard_relayer_api/orders.json
@@ -1,21 +1,21 @@
 [
-	{
-		"maker": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
-		"taker": "0xa2b31dacf30a9c50ca473337c01d8a201ae33e32",
-		"makerFee": "100000000000000",
-		"takerFee": "200000000000000",
-		"makerTokenAmount": "10000000000000000",
-		"takerTokenAmount": "20000000000000000",
-		"makerTokenAddress": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
-		"takerTokenAddress": "0xef7fff64389b814a946f3e92105513705ca6b990",
-		"salt": "256",
-		"feeRecipient": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
-		"exchangeContractAddress": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
-		"expirationUnixTimestampSec": "42",
-		"ecSignature": {
-			"v": 27,
-			"r": "0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33",
-			"s": "0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254"
-		}
-	}
+    {
+        "maker": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
+        "taker": "0xa2b31dacf30a9c50ca473337c01d8a201ae33e32",
+        "makerFee": "100000000000000",
+        "takerFee": "200000000000000",
+        "makerTokenAmount": "10000000000000000",
+        "takerTokenAmount": "20000000000000000",
+        "makerTokenAddress": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
+        "takerTokenAddress": "0xef7fff64389b814a946f3e92105513705ca6b990",
+        "salt": "256",
+        "feeRecipient": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
+        "exchangeContractAddress": "0x9e56625509c2f60af937f23b7b532600390e8c8b",
+        "expirationUnixTimestampSec": "42",
+        "ecSignature": {
+            "v": 27,
+            "r": "0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33",
+            "s": "0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254"
+        }
+    }
 ]
diff --git a/packages/connect/test/fixtures/standard_relayer_api/orders.ts b/packages/connect/test/fixtures/standard_relayer_api/orders.ts
index 701346971..5044777bd 100644
--- a/packages/connect/test/fixtures/standard_relayer_api/orders.ts
+++ b/packages/connect/test/fixtures/standard_relayer_api/orders.ts
@@ -1,23 +1,23 @@
 import { BigNumber } from '@0xproject/utils';
 
 export const ordersResponse = [
-	{
-		maker: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
-		taker: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
-		makerFee: new BigNumber('100000000000000'),
-		takerFee: new BigNumber('200000000000000'),
-		makerTokenAmount: new BigNumber('10000000000000000'),
-		takerTokenAmount: new BigNumber('20000000000000000'),
-		makerTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
-		takerTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
-		salt: new BigNumber('256'),
-		feeRecipient: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
-		exchangeContractAddress: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
-		expirationUnixTimestampSec: new BigNumber('42'),
-		ecSignature: {
-			v: 27,
-			r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
-			s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
-		},
-	},
+    {
+        maker: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
+        taker: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
+        makerFee: new BigNumber('100000000000000'),
+        takerFee: new BigNumber('200000000000000'),
+        makerTokenAmount: new BigNumber('10000000000000000'),
+        takerTokenAmount: new BigNumber('20000000000000000'),
+        makerTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
+        takerTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
+        salt: new BigNumber('256'),
+        feeRecipient: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
+        exchangeContractAddress: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
+        expirationUnixTimestampSec: new BigNumber('42'),
+        ecSignature: {
+            v: 27,
+            r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
+            s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
+        },
+    },
 ];
diff --git a/packages/connect/test/fixtures/standard_relayer_api/token_pairs.json b/packages/connect/test/fixtures/standard_relayer_api/token_pairs.json
index 8d2ea328a..90f57a974 100644
--- a/packages/connect/test/fixtures/standard_relayer_api/token_pairs.json
+++ b/packages/connect/test/fixtures/standard_relayer_api/token_pairs.json
@@ -1,16 +1,16 @@
 [
-	{
-		"tokenA": {
-			"address": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
-			"minAmount": "0",
-			"maxAmount": "10000000000000000000",
-			"precision": 5
-		},
-		"tokenB": {
-			"address": "0xef7fff64389b814a946f3e92105513705ca6b990",
-			"minAmount": "0",
-			"maxAmount": "50000000000000000000",
-			"precision": 5
-		}
-	}
+    {
+        "tokenA": {
+            "address": "0x323b5d4c32345ced77393b3530b1eed0f346429d",
+            "minAmount": "0",
+            "maxAmount": "10000000000000000000",
+            "precision": 5
+        },
+        "tokenB": {
+            "address": "0xef7fff64389b814a946f3e92105513705ca6b990",
+            "minAmount": "0",
+            "maxAmount": "50000000000000000000",
+            "precision": 5
+        }
+    }
 ]
diff --git a/packages/connect/test/fixtures/standard_relayer_api/token_pairs.ts b/packages/connect/test/fixtures/standard_relayer_api/token_pairs.ts
index 80ecb8207..f48b1e877 100644
--- a/packages/connect/test/fixtures/standard_relayer_api/token_pairs.ts
+++ b/packages/connect/test/fixtures/standard_relayer_api/token_pairs.ts
@@ -3,18 +3,18 @@ import { BigNumber } from '@0xproject/utils';
 import { TokenPairsItem } from '../../../src/types';
 
 export const tokenPairsResponse: TokenPairsItem[] = [
-	{
-		tokenA: {
-			address: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
-			minAmount: new BigNumber(0),
-			maxAmount: new BigNumber('10000000000000000000'),
-			precision: 5,
-		},
-		tokenB: {
-			address: '0xef7fff64389b814a946f3e92105513705ca6b990',
-			minAmount: new BigNumber(0),
-			maxAmount: new BigNumber('50000000000000000000'),
-			precision: 5,
-		},
-	},
+    {
+        tokenA: {
+            address: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
+            minAmount: new BigNumber(0),
+            maxAmount: new BigNumber('10000000000000000000'),
+            precision: 5,
+        },
+        tokenB: {
+            address: '0xef7fff64389b814a946f3e92105513705ca6b990',
+            minAmount: new BigNumber(0),
+            maxAmount: new BigNumber('50000000000000000000'),
+            precision: 5,
+        },
+    },
 ];
diff --git a/packages/connect/test/http_client_test.ts b/packages/connect/test/http_client_test.ts
index 00bde2fc6..15759d911 100644
--- a/packages/connect/test/http_client_test.ts
+++ b/packages/connect/test/http_client_test.ts
@@ -24,128 +24,128 @@ chai.use(chaiAsPromised);
 const expect = chai.expect;
 
 describe('HttpClient', () => {
-	const relayUrl = 'https://example.com';
-	const relayerClient = new HttpClient(relayUrl);
-	afterEach(() => {
-		fetchMock.restore();
-	});
-	describe('#constructor', () => {
-		it('should remove trailing slashes from api url', async () => {
-			const urlWithTrailingSlash = 'https://slash.com/';
-			const urlWithoutTrailingSlash = 'https://slash.com';
-			const client = new HttpClient(urlWithTrailingSlash);
-			const sanitizedUrl = (client as any)._apiEndpointUrl;
-			expect(sanitizedUrl).to.be.deep.equal(urlWithoutTrailingSlash);
-		});
-	});
-	describe('#getTokenPairsAsync', () => {
-		const url = `${relayUrl}/token_pairs`;
-		it('gets token pairs', async () => {
-			fetchMock.get(url, tokenPairsResponseJSON);
-			const tokenPairs = await relayerClient.getTokenPairsAsync();
-			expect(tokenPairs).to.be.deep.equal(tokenPairsResponse);
-		});
-		it('gets specific token pairs for request', async () => {
-			const tokenAddress = '0x323b5d4c32345ced77393b3530b1eed0f346429d';
-			const tokenPairsRequest = {
-				tokenA: tokenAddress,
-			};
-			const urlWithQuery = `${url}?tokenA=${tokenAddress}`;
-			fetchMock.get(urlWithQuery, tokenPairsResponseJSON);
-			const tokenPairs = await relayerClient.getTokenPairsAsync(tokenPairsRequest);
-			expect(tokenPairs).to.be.deep.equal(tokenPairsResponse);
-		});
-		it('throws an error for invalid JSON response', async () => {
-			fetchMock.get(url, { test: 'dummy' });
-			expect(relayerClient.getTokenPairsAsync()).to.be.rejected();
-		});
-	});
-	describe('#getOrdersAsync', () => {
-		const url = `${relayUrl}/orders`;
-		it('gets orders', async () => {
-			fetchMock.get(url, ordersResponseJSON);
-			const orders = await relayerClient.getOrdersAsync();
-			expect(orders).to.be.deep.equal(ordersResponse);
-		});
-		it('gets specific orders for request', async () => {
-			const tokenAddress = '0x323b5d4c32345ced77393b3530b1eed0f346429d';
-			const ordersRequest = {
-				tokenAddress,
-			};
-			const urlWithQuery = `${url}?tokenAddress=${tokenAddress}`;
-			fetchMock.get(urlWithQuery, ordersResponseJSON);
-			const orders = await relayerClient.getOrdersAsync(ordersRequest);
-			expect(orders).to.be.deep.equal(ordersResponse);
-		});
-		it('throws an error for invalid JSON response', async () => {
-			fetchMock.get(url, { test: 'dummy' });
-			expect(relayerClient.getOrdersAsync()).to.be.rejected();
-		});
-	});
-	describe('#getOrderAsync', () => {
-		const orderHash = '0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f';
-		const url = `${relayUrl}/order/${orderHash}`;
-		it('gets order', async () => {
-			fetchMock.get(url, orderResponseJSON);
-			const order = await relayerClient.getOrderAsync(orderHash);
-			expect(order).to.be.deep.equal(orderResponse);
-		});
-		it('throws an error for invalid JSON response', async () => {
-			fetchMock.get(url, { test: 'dummy' });
-			expect(relayerClient.getOrderAsync(orderHash)).to.be.rejected();
-		});
-	});
-	describe('#getOrderBookAsync', () => {
-		const request = {
-			baseTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
-			quoteTokenAddress: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
-		};
-		const url = `${relayUrl}/orderbook?baseTokenAddress=${request.baseTokenAddress}&quoteTokenAddress=${
-			request.quoteTokenAddress
-		}`;
-		it('gets order book', async () => {
-			fetchMock.get(url, orderbookJSON);
-			const orderbook = await relayerClient.getOrderbookAsync(request);
-			expect(orderbook).to.be.deep.equal(orderbookResponse);
-		});
-		it('throws an error for invalid JSON response', async () => {
-			fetchMock.get(url, { test: 'dummy' });
-			expect(relayerClient.getOrderbookAsync(request)).to.be.rejected();
-		});
-	});
-	describe('#getFeesAsync', () => {
-		const request = {
-			exchangeContractAddress: '0x12459c951127e0c374ff9105dda097662a027093',
-			maker: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
-			taker: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
-			makerTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
-			takerTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
-			makerTokenAmount: new BigNumber('10000000000000000000'),
-			takerTokenAmount: new BigNumber('30000000000000000000'),
-			salt: new BigNumber('256'),
-			expirationUnixTimestampSec: new BigNumber('42'),
-		};
-		const url = `${relayUrl}/fees`;
-		it('gets fees', async () => {
-			fetchMock.post(url, feesResponseJSON);
-			const fees = await relayerClient.getFeesAsync(request);
-			expect(fees).to.be.deep.equal(feesResponse);
-		});
-		it('does not mutate input', async () => {
-			fetchMock.post(url, feesResponseJSON);
-			const makerTokenAmountBefore = new BigNumber(request.makerTokenAmount);
-			const takerTokenAmountBefore = new BigNumber(request.takerTokenAmount);
-			const saltBefore = new BigNumber(request.salt);
-			const expirationUnixTimestampSecBefore = new BigNumber(request.expirationUnixTimestampSec);
-			await relayerClient.getFeesAsync(request);
-			expect(makerTokenAmountBefore).to.be.deep.equal(request.makerTokenAmount);
-			expect(takerTokenAmountBefore).to.be.deep.equal(request.takerTokenAmount);
-			expect(saltBefore).to.be.deep.equal(request.salt);
-			expect(expirationUnixTimestampSecBefore).to.be.deep.equal(request.expirationUnixTimestampSec);
-		});
-		it('throws an error for invalid JSON response', async () => {
-			fetchMock.post(url, { test: 'dummy' });
-			expect(relayerClient.getFeesAsync(request)).to.be.rejected();
-		});
-	});
+    const relayUrl = 'https://example.com';
+    const relayerClient = new HttpClient(relayUrl);
+    afterEach(() => {
+        fetchMock.restore();
+    });
+    describe('#constructor', () => {
+        it('should remove trailing slashes from api url', async () => {
+            const urlWithTrailingSlash = 'https://slash.com/';
+            const urlWithoutTrailingSlash = 'https://slash.com';
+            const client = new HttpClient(urlWithTrailingSlash);
+            const sanitizedUrl = (client as any)._apiEndpointUrl;
+            expect(sanitizedUrl).to.be.deep.equal(urlWithoutTrailingSlash);
+        });
+    });
+    describe('#getTokenPairsAsync', () => {
+        const url = `${relayUrl}/token_pairs`;
+        it('gets token pairs', async () => {
+            fetchMock.get(url, tokenPairsResponseJSON);
+            const tokenPairs = await relayerClient.getTokenPairsAsync();
+            expect(tokenPairs).to.be.deep.equal(tokenPairsResponse);
+        });
+        it('gets specific token pairs for request', async () => {
+            const tokenAddress = '0x323b5d4c32345ced77393b3530b1eed0f346429d';
+            const tokenPairsRequest = {
+                tokenA: tokenAddress,
+            };
+            const urlWithQuery = `${url}?tokenA=${tokenAddress}`;
+            fetchMock.get(urlWithQuery, tokenPairsResponseJSON);
+            const tokenPairs = await relayerClient.getTokenPairsAsync(tokenPairsRequest);
+            expect(tokenPairs).to.be.deep.equal(tokenPairsResponse);
+        });
+        it('throws an error for invalid JSON response', async () => {
+            fetchMock.get(url, { test: 'dummy' });
+            expect(relayerClient.getTokenPairsAsync()).to.be.rejected();
+        });
+    });
+    describe('#getOrdersAsync', () => {
+        const url = `${relayUrl}/orders`;
+        it('gets orders', async () => {
+            fetchMock.get(url, ordersResponseJSON);
+            const orders = await relayerClient.getOrdersAsync();
+            expect(orders).to.be.deep.equal(ordersResponse);
+        });
+        it('gets specific orders for request', async () => {
+            const tokenAddress = '0x323b5d4c32345ced77393b3530b1eed0f346429d';
+            const ordersRequest = {
+                tokenAddress,
+            };
+            const urlWithQuery = `${url}?tokenAddress=${tokenAddress}`;
+            fetchMock.get(urlWithQuery, ordersResponseJSON);
+            const orders = await relayerClient.getOrdersAsync(ordersRequest);
+            expect(orders).to.be.deep.equal(ordersResponse);
+        });
+        it('throws an error for invalid JSON response', async () => {
+            fetchMock.get(url, { test: 'dummy' });
+            expect(relayerClient.getOrdersAsync()).to.be.rejected();
+        });
+    });
+    describe('#getOrderAsync', () => {
+        const orderHash = '0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f';
+        const url = `${relayUrl}/order/${orderHash}`;
+        it('gets order', async () => {
+            fetchMock.get(url, orderResponseJSON);
+            const order = await relayerClient.getOrderAsync(orderHash);
+            expect(order).to.be.deep.equal(orderResponse);
+        });
+        it('throws an error for invalid JSON response', async () => {
+            fetchMock.get(url, { test: 'dummy' });
+            expect(relayerClient.getOrderAsync(orderHash)).to.be.rejected();
+        });
+    });
+    describe('#getOrderBookAsync', () => {
+        const request = {
+            baseTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
+            quoteTokenAddress: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
+        };
+        const url = `${relayUrl}/orderbook?baseTokenAddress=${request.baseTokenAddress}&quoteTokenAddress=${
+            request.quoteTokenAddress
+        }`;
+        it('gets order book', async () => {
+            fetchMock.get(url, orderbookJSON);
+            const orderbook = await relayerClient.getOrderbookAsync(request);
+            expect(orderbook).to.be.deep.equal(orderbookResponse);
+        });
+        it('throws an error for invalid JSON response', async () => {
+            fetchMock.get(url, { test: 'dummy' });
+            expect(relayerClient.getOrderbookAsync(request)).to.be.rejected();
+        });
+    });
+    describe('#getFeesAsync', () => {
+        const request = {
+            exchangeContractAddress: '0x12459c951127e0c374ff9105dda097662a027093',
+            maker: '0x9e56625509c2f60af937f23b7b532600390e8c8b',
+            taker: '0xa2b31dacf30a9c50ca473337c01d8a201ae33e32',
+            makerTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
+            takerTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
+            makerTokenAmount: new BigNumber('10000000000000000000'),
+            takerTokenAmount: new BigNumber('30000000000000000000'),
+            salt: new BigNumber('256'),
+            expirationUnixTimestampSec: new BigNumber('42'),
+        };
+        const url = `${relayUrl}/fees`;
+        it('gets fees', async () => {
+            fetchMock.post(url, feesResponseJSON);
+            const fees = await relayerClient.getFeesAsync(request);
+            expect(fees).to.be.deep.equal(feesResponse);
+        });
+        it('does not mutate input', async () => {
+            fetchMock.post(url, feesResponseJSON);
+            const makerTokenAmountBefore = new BigNumber(request.makerTokenAmount);
+            const takerTokenAmountBefore = new BigNumber(request.takerTokenAmount);
+            const saltBefore = new BigNumber(request.salt);
+            const expirationUnixTimestampSecBefore = new BigNumber(request.expirationUnixTimestampSec);
+            await relayerClient.getFeesAsync(request);
+            expect(makerTokenAmountBefore).to.be.deep.equal(request.makerTokenAmount);
+            expect(takerTokenAmountBefore).to.be.deep.equal(request.takerTokenAmount);
+            expect(saltBefore).to.be.deep.equal(request.salt);
+            expect(expirationUnixTimestampSecBefore).to.be.deep.equal(request.expirationUnixTimestampSec);
+        });
+        it('throws an error for invalid JSON response', async () => {
+            fetchMock.post(url, { test: 'dummy' });
+            expect(relayerClient.getFeesAsync(request)).to.be.rejected();
+        });
+    });
 });
diff --git a/packages/connect/test/orderbook_channel_message_parsers_test.ts b/packages/connect/test/orderbook_channel_message_parsers_test.ts
index 04ca157a8..3e1f44384 100644
--- a/packages/connect/test/orderbook_channel_message_parsers_test.ts
+++ b/packages/connect/test/orderbook_channel_message_parsers_test.ts
@@ -7,13 +7,13 @@ import { orderbookChannelMessageParser } from '../src/utils/orderbook_channel_me
 import { orderResponse } from './fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f';
 import { orderbookResponse } from './fixtures/standard_relayer_api/orderbook';
 import {
-	malformedSnapshotOrderbookChannelMessage,
-	snapshotOrderbookChannelMessage,
+    malformedSnapshotOrderbookChannelMessage,
+    snapshotOrderbookChannelMessage,
 } from './fixtures/standard_relayer_api/snapshot_orderbook_channel_message';
 import { unknownOrderbookChannelMessage } from './fixtures/standard_relayer_api/unknown_orderbook_channel_message';
 import {
-	malformedUpdateOrderbookChannelMessage,
-	updateOrderbookChannelMessage,
+    malformedUpdateOrderbookChannelMessage,
+    updateOrderbookChannelMessage,
 } from './fixtures/standard_relayer_api/update_orderbook_channel_message';
 
 chai.config.includeStack = true;
@@ -21,56 +21,56 @@ chai.use(dirtyChai);
 const expect = chai.expect;
 
 describe('orderbookChannelMessageParser', () => {
-	describe('#parser', () => {
-		it('parses snapshot messages', () => {
-			const snapshotMessage = orderbookChannelMessageParser.parse(snapshotOrderbookChannelMessage);
-			expect(snapshotMessage.type).to.be.equal('snapshot');
-			expect(snapshotMessage.payload).to.be.deep.equal(orderbookResponse);
-		});
-		it('parses update messages', () => {
-			const updateMessage = orderbookChannelMessageParser.parse(updateOrderbookChannelMessage);
-			expect(updateMessage.type).to.be.equal('update');
-			expect(updateMessage.payload).to.be.deep.equal(orderResponse);
-		});
-		it('returns unknown message for messages with unsupported types', () => {
-			const unknownMessage = orderbookChannelMessageParser.parse(unknownOrderbookChannelMessage);
-			expect(unknownMessage.type).to.be.equal('unknown');
-			expect(unknownMessage.payload).to.be.undefined();
-		});
-		it('throws when message does not include a type', () => {
-			const typelessMessage = `{
+    describe('#parser', () => {
+        it('parses snapshot messages', () => {
+            const snapshotMessage = orderbookChannelMessageParser.parse(snapshotOrderbookChannelMessage);
+            expect(snapshotMessage.type).to.be.equal('snapshot');
+            expect(snapshotMessage.payload).to.be.deep.equal(orderbookResponse);
+        });
+        it('parses update messages', () => {
+            const updateMessage = orderbookChannelMessageParser.parse(updateOrderbookChannelMessage);
+            expect(updateMessage.type).to.be.equal('update');
+            expect(updateMessage.payload).to.be.deep.equal(orderResponse);
+        });
+        it('returns unknown message for messages with unsupported types', () => {
+            const unknownMessage = orderbookChannelMessageParser.parse(unknownOrderbookChannelMessage);
+            expect(unknownMessage.type).to.be.equal('unknown');
+            expect(unknownMessage.payload).to.be.undefined();
+        });
+        it('throws when message does not include a type', () => {
+            const typelessMessage = `{
                 "channel": "orderbook",
                 "requestId": 1,
                 "payload": {}
             }`;
-			const badCall = () => orderbookChannelMessageParser.parse(typelessMessage);
-			expect(badCall).throws(`Message is missing a type parameter: ${typelessMessage}`);
-		});
-		it('throws when type is not a string', () => {
-			const messageWithBadType = `{
+            const badCall = () => orderbookChannelMessageParser.parse(typelessMessage);
+            expect(badCall).throws(`Message is missing a type parameter: ${typelessMessage}`);
+        });
+        it('throws when type is not a string', () => {
+            const messageWithBadType = `{
                 "type": 1,
                 "channel": "orderbook",
                 "requestId": 1,
                 "payload": {}
             }`;
-			const badCall = () => orderbookChannelMessageParser.parse(messageWithBadType);
-			expect(badCall).throws('Expected type to be of type string, encountered: 1');
-		});
-		it('throws when snapshot message has malformed payload', () => {
-			const badCall = () => orderbookChannelMessageParser.parse(malformedSnapshotOrderbookChannelMessage);
-			// tslint:disable-next-line:max-line-length
-			const errMsg =
-				'Validation errors: instance.payload requires property "bids", instance.payload requires property "asks"';
-			expect(badCall).throws(errMsg);
-		});
-		it('throws when update message has malformed payload', () => {
-			const badCall = () => orderbookChannelMessageParser.parse(malformedUpdateOrderbookChannelMessage);
-			expect(badCall).throws(/^Expected message to conform to schema/);
-		});
-		it('throws when input message is not valid JSON', () => {
-			const nonJsonString = 'h93b{sdfs9fsd f';
-			const badCall = () => orderbookChannelMessageParser.parse(nonJsonString);
-			expect(badCall).throws('Unexpected token h in JSON at position 0');
-		});
-	});
+            const badCall = () => orderbookChannelMessageParser.parse(messageWithBadType);
+            expect(badCall).throws('Expected type to be of type string, encountered: 1');
+        });
+        it('throws when snapshot message has malformed payload', () => {
+            const badCall = () => orderbookChannelMessageParser.parse(malformedSnapshotOrderbookChannelMessage);
+            // tslint:disable-next-line:max-line-length
+            const errMsg =
+                'Validation errors: instance.payload requires property "bids", instance.payload requires property "asks"';
+            expect(badCall).throws(errMsg);
+        });
+        it('throws when update message has malformed payload', () => {
+            const badCall = () => orderbookChannelMessageParser.parse(malformedUpdateOrderbookChannelMessage);
+            expect(badCall).throws(/^Expected message to conform to schema/);
+        });
+        it('throws when input message is not valid JSON', () => {
+            const nonJsonString = 'h93b{sdfs9fsd f';
+            const badCall = () => orderbookChannelMessageParser.parse(nonJsonString);
+            expect(badCall).throws('Unexpected token h in JSON at position 0');
+        });
+    });
 });
diff --git a/packages/connect/test/ws_orderbook_channel_test.ts b/packages/connect/test/ws_orderbook_channel_test.ts
index 0cd8cd12f..ce404d934 100644
--- a/packages/connect/test/ws_orderbook_channel_test.ts
+++ b/packages/connect/test/ws_orderbook_channel_test.ts
@@ -10,52 +10,52 @@ chai.use(dirtyChai);
 const expect = chai.expect;
 
 describe('WebSocketOrderbookChannel', () => {
-	const websocketUrl = 'ws://localhost:8080';
-	const orderbookChannel = new WebSocketOrderbookChannel(websocketUrl);
-	const subscriptionOpts = {
-		baseTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
-		quoteTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
-		snapshot: true,
-		limit: 100,
-	};
-	const emptyOrderbookChannelHandler = {
-		onSnapshot: () => {
-			_.noop();
-		},
-		onUpdate: () => {
-			_.noop();
-		},
-		onError: () => {
-			_.noop();
-		},
-		onClose: () => {
-			_.noop();
-		},
-	};
-	describe('#subscribe', () => {
-		it('throws when subscriptionOpts does not conform to schema', () => {
-			const badSubscribeCall = orderbookChannel.subscribe.bind(
-				orderbookChannel,
-				{},
-				emptyOrderbookChannelHandler,
-			);
-			expect(badSubscribeCall).throws(
-				'Expected subscriptionOpts to conform to schema /RelayerApiOrderbookChannelSubscribePayload\nEncountered: {}\nValidation errors: instance requires property "baseTokenAddress", instance requires property "quoteTokenAddress"',
-			);
-		});
-		it('throws when handler has the incorrect members', () => {
-			const badSubscribeCall = orderbookChannel.subscribe.bind(orderbookChannel, subscriptionOpts, {});
-			expect(badSubscribeCall).throws(
-				'Expected handler.onSnapshot to be of type function, encountered: undefined',
-			);
-		});
-		it('does not throw when inputs are of correct types', () => {
-			const goodSubscribeCall = orderbookChannel.subscribe.bind(
-				orderbookChannel,
-				subscriptionOpts,
-				emptyOrderbookChannelHandler,
-			);
-			expect(goodSubscribeCall).to.not.throw();
-		});
-	});
+    const websocketUrl = 'ws://localhost:8080';
+    const orderbookChannel = new WebSocketOrderbookChannel(websocketUrl);
+    const subscriptionOpts = {
+        baseTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
+        quoteTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
+        snapshot: true,
+        limit: 100,
+    };
+    const emptyOrderbookChannelHandler = {
+        onSnapshot: () => {
+            _.noop();
+        },
+        onUpdate: () => {
+            _.noop();
+        },
+        onError: () => {
+            _.noop();
+        },
+        onClose: () => {
+            _.noop();
+        },
+    };
+    describe('#subscribe', () => {
+        it('throws when subscriptionOpts does not conform to schema', () => {
+            const badSubscribeCall = orderbookChannel.subscribe.bind(
+                orderbookChannel,
+                {},
+                emptyOrderbookChannelHandler,
+            );
+            expect(badSubscribeCall).throws(
+                'Expected subscriptionOpts to conform to schema /RelayerApiOrderbookChannelSubscribePayload\nEncountered: {}\nValidation errors: instance requires property "baseTokenAddress", instance requires property "quoteTokenAddress"',
+            );
+        });
+        it('throws when handler has the incorrect members', () => {
+            const badSubscribeCall = orderbookChannel.subscribe.bind(orderbookChannel, subscriptionOpts, {});
+            expect(badSubscribeCall).throws(
+                'Expected handler.onSnapshot to be of type function, encountered: undefined',
+            );
+        });
+        it('does not throw when inputs are of correct types', () => {
+            const goodSubscribeCall = orderbookChannel.subscribe.bind(
+                orderbookChannel,
+                subscriptionOpts,
+                emptyOrderbookChannelHandler,
+            );
+            expect(goodSubscribeCall).to.not.throw();
+        });
+    });
 });