Remove buffer dependency

src/common.ts

@@ -1,6 +1,6 @@
 export const MAX_DATA_LENGTH = 1000
 
-export const DEFAULT_KEY = Buffer.alloc(16)
+export const DEFAULT_KEY = new Uint8Array(16)
 
 export enum MessageTypes {
   Subscribe = 0x0000,

src/messages/basic.ts

@@ -16,8 +16,9 @@ export interface BasicMessage {
  * @param key The key to encrypt the data with.
  * @returns An outgoing basic message (0x0001) packet.
  */
-export function packBasicMessage (properties: BasicMessage, key: Buffer = DEFAULT_KEY): Buffer {
+export function packBasicMessage (properties: BasicMessage, key: Uint8Array = DEFAULT_KEY): Uint8Array {
-  const message = Buffer.from(properties.message, 'utf-8')
+  const encoder = new TextEncoder()
+  const message = encoder.encode(properties.message)
   const data = encrypt(message, MESSAGE_TYPE, key)
   return packOutgoingPacket({
     messageType: MESSAGE_TYPE,
@@ -31,11 +32,11 @@ export function packBasicMessage (properties: BasicMessage, key: Buffer = DEFAUL
  * @param key The key to decrypt the data with.
  * @returns An unpacked basic message (0x0001) message.
  */
-export function unpackBasicMessage (data: Buffer, key: Buffer = DEFAULT_KEY): BasicMessage {
+export function unpackBasicMessage (data: Uint8Array, key: Uint8Array = DEFAULT_KEY): BasicMessage {
+  const decoder = new TextDecoder()
   const message = decrypt(data, MESSAGE_TYPE, key)
-
   return {
-    message: message.plaintext.toString(),
+    message: decoder.decode(message.plaintext),
     success: message.success
   }
 }

src/messages/keepalive.ts

@@ -8,9 +8,9 @@ const MESSAGE_TYPE = numberToUint16BE(MessageTypes.Keepalive)
  * Create an outgoing keepalive (0x0005) packet.
  * @returns An outgoing keepalive (0x0005) packet.
  */
-export function packKeepaliveMessage (): Buffer {
+export function packKeepaliveMessage (): Uint8Array {
   return packOutgoingPacket({
     messageType: MESSAGE_TYPE,
-    data: Buffer.alloc(0)
+    data: new Uint8Array(0)
   })
 }

src/messages/packet.ts

@@ -5,12 +5,12 @@ import { SmartBuffer } from '../utilities/smart-buffer'
 export interface IncomingPacket {
   messageType: number
   senderId: number
-  data: Buffer
+  data: Uint8Array
 }
 
 export interface OutgoingPacket {
-  messageType: Buffer
+  messageType: Uint8Array
-  data: Buffer
+  data: Uint8Array
 }
 
 /**
@@ -18,20 +18,19 @@ export interface OutgoingPacket {
  * @param outgoingPacket The message type and data to send.
  * @returns A buffer containing the ready-to-send packet.
  */
-export function packOutgoingPacket (outgoingPacket: OutgoingPacket): Buffer {
+export function packOutgoingPacket (outgoingPacket: OutgoingPacket): Uint8Array {
   // Verify that the data does not exceed the maximum data length.
   if (outgoingPacket.data.length > MAX_DATA_LENGTH) {
     throw RangeError(`Specified data of length ${outgoingPacket.data.length} exceeds max data length ${MAX_DATA_LENGTH}.`)
   }
 
   // Prepare the outgoing packet.
-  const buffer = Buffer.concat([
+  const buffer = new SmartBuffer()
-    outgoingPacket.messageType,
+  buffer.writeBytes(outgoingPacket.messageType)
-    numberToUint16BE(outgoingPacket.data.length),
+  buffer.writeBytes(numberToUint16BE(outgoingPacket.data.length))
-    outgoingPacket.data
+  buffer.writeBytes(outgoingPacket.data)
-  ])
 
-  return buffer
+  return buffer.data
 }
 
 /**

src/messages/subscribe.ts

@@ -13,7 +13,7 @@ export interface SubscribeMessage {
  * @param properties The properties for the message.
  * @returns An outgoing subscribe (0x0000) packet.
  */
-export function packSubscribeMessage (properties: SubscribeMessage): Buffer {
+export function packSubscribeMessage (properties: SubscribeMessage): Uint8Array {
   const data = numberToUint16BE(properties.messageType)
   return packOutgoingPacket({
     messageType: MESSAGE_TYPE,

src/messages/unsubscribe.ts

@@ -13,7 +13,7 @@ export interface UnsubscribeMessage {
  * @param properties The properties for the message.
  * @returns An outgoing unsubscribe (0xFFFF) packet.
  */
-export function packUnsubscribeMessage (properties: UnsubscribeMessage): Buffer {
+export function packUnsubscribeMessage (properties: UnsubscribeMessage): Uint8Array {
   const data = numberToUint16BE(properties.messageType)
   return packOutgoingPacket({
     messageType: MESSAGE_TYPE,

src/messages/userDataRequest.ts

@@ -20,25 +20,26 @@ export interface UserDataRequestMessage {
  * @param key The key to encrypt the data with.
  * @returns An outgoing user data request (0x0002) packet.
  */
-export function packUserDataRequestMessage (properties: UserDataRequestMessage, key: Buffer = DEFAULT_KEY): Buffer {
+export function packUserDataRequestMessage (properties: UserDataRequestMessage, key: Uint8Array = DEFAULT_KEY): Uint8Array {
+  const encoder = new TextEncoder()
+
   // Prepare data in correct format.
-  const username = Buffer.from(properties.username, 'utf-8')
+  const username = encoder.encode(properties.username)
   const usernameLength = numberToUint16BE(username.length)
-  const colour = Buffer.from(properties.colour.array())
+  const colour = new Uint8Array(properties.colour.array())
-  const clientId = Buffer.from(properties.clientId, 'utf-8')
+  const clientId = encoder.encode(properties.clientId)
   const clientIdLength = numberToUint16BE(clientId.length)
 
   // Pack data.
-  const packedData = Buffer.concat([
+  const packedData = new SmartBuffer()
-    usernameLength,
+  packedData.writeBytes(usernameLength)
-    username,
+  packedData.writeBytes(username)
-    colour,
+  packedData.writeBytes(colour)
-    clientIdLength,
+  packedData.writeBytes(clientIdLength)
-    clientId
+  packedData.writeBytes(clientId)
-  ])
 
   // Encrypt the data.
-  const data = encrypt(packedData, MESSAGE_TYPE, key)
+  const data = encrypt(packedData.data, MESSAGE_TYPE, key)
 
   return packOutgoingPacket({
     messageType: MESSAGE_TYPE,
@@ -52,7 +53,7 @@ export function packUserDataRequestMessage (properties: UserDataRequestMessage,
  * @param key The key to decrypt the data with.
  * @returns An unpacked user data request (0x0002) message
  */
-export function unpackUserDataRequestMessage (data: Buffer, key: Buffer = DEFAULT_KEY): UserDataRequestMessage {
+export function unpackUserDataRequestMessage (data: Uint8Array, key: Uint8Array = DEFAULT_KEY): UserDataRequestMessage {
   // Decrypt the incoming data.
   const message = decrypt(data, MESSAGE_TYPE, key)
 
@@ -75,11 +76,13 @@ export function unpackUserDataRequestMessage (data: Buffer, key: Buffer = DEFAUL
   const clientIdLength = packedData.readUInt16()
   const clientId = packedData.readBytes(clientIdLength)
 
+  const decoder = new TextDecoder()
+
   // Return data in correct format.
   return {
-    username: username.toString(),
+    username: decoder.decode(username),
     colour: Color.rgb(colour),
-    clientId: clientId.toString(),
+    clientId: decoder.decode(clientId),
     success: message.success
   }
 }

src/messages/userDataResponse.ts

@@ -20,25 +20,26 @@ export interface UserDataResponseMessage {
  * @param key The key to encrypt the data with.
  * @returns The data section of an outgoing user data response (0x0003) message.
  */
-export function packUserDataResponseMessage (properties: UserDataResponseMessage, key: Buffer = DEFAULT_KEY): Buffer {
+export function packUserDataResponseMessage (properties: UserDataResponseMessage, key: Uint8Array = DEFAULT_KEY): Uint8Array {
+  const encoder = new TextEncoder()
+
   // Prepare data in correct format.
-  const username = Buffer.from(properties.username, 'utf-8')
+  const username = encoder.encode(properties.username)
   const usernameLength = numberToUint16BE(username.length)
-  const colour = Buffer.from(properties.colour.array())
+  const colour = new Uint8Array(properties.colour.array())
-  const clientId = Buffer.from(properties.clientId, 'utf-8')
+  const clientId = encoder.encode(properties.clientId)
   const clientIdLength = numberToUint16BE(clientId.length)
 
   // Pack data.
-  const packedData = Buffer.concat([
+  const packedData = new SmartBuffer()
-    usernameLength,
+  packedData.writeBytes(usernameLength)
-    username,
+  packedData.writeBytes(username)
-    colour,
+  packedData.writeBytes(colour)
-    clientIdLength,
+  packedData.writeBytes(clientIdLength)
-    clientId
+  packedData.writeBytes(clientId)
-  ])
 
   // Return encrypted data.
-  const data = encrypt(packedData, MESSAGE_TYPE, key)
+  const data = encrypt(packedData.data, MESSAGE_TYPE, key)
   return packOutgoingPacket({
     messageType: MESSAGE_TYPE,
     data: data
@@ -51,7 +52,7 @@ export function packUserDataResponseMessage (properties: UserDataResponseMessage
  * @param key The key to decrypt the data with.
  * @returns An unpacked user data response (0x0003) message
  */
-export function unpackUserDataResponseMessage (data: Buffer, key: Buffer = DEFAULT_KEY): UserDataResponseMessage {
+export function unpackUserDataResponseMessage (data: Uint8Array, key: Uint8Array = DEFAULT_KEY): UserDataResponseMessage {
   // Decrypt the incoming data.
   const message = decrypt(data, MESSAGE_TYPE, key)
 
@@ -74,11 +75,13 @@ export function unpackUserDataResponseMessage (data: Buffer, key: Buffer = DEFAU
   const clientIdLength = packedData.readUInt16()
   const clientId = packedData.readBytes(clientIdLength)
 
+  const decoder = new TextDecoder()
+
   // Return data in correct format.
   return {
-    username: username.toString(),
+    username: decoder.decode(username),
     colour: Color.rgb(colour),
-    clientId: clientId.toString(),
+    clientId: decoder.decode(clientId),
     success: message.success
   }
 }

src/utilities/number.ts

@@ -3,9 +3,10 @@
  * @param number The number to pack.
  * @returns The packed buffer.
  */
-export function numberToUint16BE (number: number): Buffer {
+export function numberToUint16BE (number: number): Uint8Array {
-  const ret = Buffer.alloc(2)
+  const ret = new Uint8Array(2)
-  ret.writeUInt16BE(number)
+  ret[0] = (number & 0xFF00) >> 8
+  ret[1] = (number & 0x00FF) >> 0
   return ret
 }
 
@@ -14,8 +15,11 @@ export function numberToUint16BE (number: number): Buffer {
  * @param number The number to pack.
  * @returns The packed buffer.
  */
-export function numberToUint32BE (number: number): Buffer {
+export function numberToUint32BE (number: number): Uint8Array {
-  const ret = Buffer.alloc(4)
+  const ret = new Uint8Array(4)
-  ret.writeUInt32BE(number)
+  ret[0] = (number & 0xFF000000) >> 24
+  ret[1] = (number & 0x00FF0000) >> 16
+  ret[2] = (number & 0x0000FF00) >> 8
+  ret[3] = (number & 0x000000FF) >> 0
   return ret
 }

src/utilities/smart-buffer.ts

@@ -16,14 +16,14 @@ export class SmartBuffer {
   /**
   * Return a regular buffer.
   */
-  get data (): Buffer {
+  get data (): Uint8Array {
-    return Buffer.from(this._data)
+    return new Uint8Array(this._data)
   }
 
   /**
   * Update the smart buffer to wrap new data.
   */
-  set data (data: Buffer) {
+  set data (data: Uint8Array) {
     this._data = Array.from(data)
     this.cursor = 0
   }
@@ -64,10 +64,10 @@ export class SmartBuffer {
    * @param data The object to convert to a new SmartBuffer.
    * @returns A new SmartBuffer.
    */
-  static from (data: number[] | ArrayBuffer | Buffer): SmartBuffer {
+  static from (data: number[] | ArrayBuffer): SmartBuffer {
     const smartBuffer = new SmartBuffer()
     if (data instanceof ArrayBuffer) {
-      smartBuffer._data = Array.from(Buffer.from(data))
+      smartBuffer._data = Array.from(new Uint8Array(data))
     } else {
       smartBuffer._data = Array.from(data)
     }
@@ -88,8 +88,8 @@ export class SmartBuffer {
   * @param end The end position.
   * @returns A new buffer containing data from the specified range.
   */
-  slice (start: number, end: number): Buffer {
+  slice (start: number, end: number): Uint8Array {
-    return Buffer.from(this._data.slice(start, end))
+    return new Uint8Array(this._data.slice(start, end))
   }
 
   /**
@@ -110,8 +110,9 @@ export class SmartBuffer {
   * @returns A number represented by the bytes at the current cursor position.
   */
   readUInt16 (): number {
+    const num = this.slice(this.cursor, this.cursor + 2)
     this.cursor += 2
-    return Buffer.from(this._data).readUInt16BE(this.cursor - 2)
+    return (num[0] << 8 | num[1]) >>> 0
   }
 
   /**
@@ -119,15 +120,16 @@ export class SmartBuffer {
   * @returns A number represented by the bytes at the current cursor position.
   */
   readUInt32 (): number {
+    const num = this.slice(this.cursor, this.cursor + 4)
     this.cursor += 4
-    return Buffer.from(this._data).readUInt32BE(this.cursor - 4)
+    return (num[0] << 24 | num[1] << 16 | num[2] << 8 | num[3]) >>> 0
   }
 
   /**
   * Read the specified number of bytes from the smart buffer at the current cursor position, and increment the cursor.
   * @returns A buffer containing the bytes read from the current cursor position.
   */
-  readBytes (length: number): Buffer {
+  readBytes (length: number): Uint8Array {
     this.cursor += length
     return this.slice(this.cursor - length, this.cursor)
   }
@@ -154,7 +156,7 @@ export class SmartBuffer {
   * Write the specified bytes to the smart buffer at the current cursor position, and increment the cursor.
   * @param buffer The bytes to write at the current cursor position.
   */
-  writeBytes (buffer: number[] | Buffer): void {
+  writeBytes (buffer: number[] | Uint8Array): void {
     this.splice(this.cursor, buffer.length, ...buffer)
     this.cursor += buffer.length
   }

tests/messages/basic.test.ts

@@ -1,7 +1,7 @@
 import { MessageTypes } from '../../src/common'
 import { packers, unpackers } from '../../src/mapping'
 
-const KEY = Buffer.from([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F])
+const KEY = new Uint8Array([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F])
 
 test('Create a basic message (0x0001) packet.', () => {
   // Given
@@ -16,7 +16,7 @@ test('Create a basic message (0x0001) packet.', () => {
   // Then
   // We can't check the contents of the data as it's encrypted with a random nonce.
   // Check the message type and length.
-  expect(packedPacket.slice(0, 4)).toMatchObject(Buffer.from([0x00, 0x01, 0x00, 0x2D]))
+  expect(packedPacket.slice(0, 4)).toMatchObject(new Uint8Array([0x00, 0x01, 0x00, 0x2D]))
 
   // Check the total length is as expected.
   expect(packedPacket.length).toBe(49)
@@ -24,7 +24,7 @@ test('Create a basic message (0x0001) packet.', () => {
 
 test('Parse a basic message (0x0001).', () => {
   // Given
-  const ciphertext = Buffer.from([
+  const ciphertext = new Uint8Array([
     0x84, 0xa2, 0x3a, 0xe2, 0xa8, 0xff, 0x43, 0x56, 0x96, 0x94, 0xf6, 0xe5, 0x1a, 0x30, 0x53,
     0x39, 0xb9, 0xc4, 0x2c, 0xab, 0x21, 0x52, 0x8f, 0xc2, 0xba, 0x6c, 0x8b, 0x96, 0x82, 0x9d,
     0x51, 0x27, 0x0c, 0xb6, 0x3b, 0x7f, 0x3e, 0x2a, 0x7b, 0x70, 0xbe, 0x01, 0x7b, 0x71, 0x9d

tests/messages/keepalive.test.ts

@@ -6,6 +6,6 @@ test('Create a keepalive (0x0005) packet.', () => {
   const packedPacket = packers[MessageTypes.Keepalive]()
 
   // Then
-  const expectedResult = Buffer.from([0x00, 0x05, 0x00, 0x00])
+  const expectedResult = new Uint8Array([0x00, 0x05, 0x00, 0x00])
   expect(packedPacket).toMatchObject(expectedResult)
 })

tests/messages/packet.test.ts

@@ -2,8 +2,8 @@ import { packOutgoingPacket, unpackIncomingPacket } from '../../src/messages/pac
 
 test('Pack an outgoing packet.', () => {
   // Given
-  const messageType = Buffer.from([0x12, 0x34])
+  const messageType = new Uint8Array([0x12, 0x34])
-  const data = Buffer.from([0x12, 0x34, 0x56, 0x78])
+  const data = new Uint8Array([0x12, 0x34, 0x56, 0x78])
 
   // When
   const packedPacket = packOutgoingPacket({
@@ -12,7 +12,7 @@ test('Pack an outgoing packet.', () => {
   })
 
   // Then
-  const expectedResult = Buffer.from([
+  const expectedResult = new Uint8Array([
     // Message type
     0x12, 0x34,
     // Data length
@@ -25,7 +25,7 @@ test('Pack an outgoing packet.', () => {
 
 test('Unpack an incoming packet.', () => {
   // Given
-  const incomingPacket = Buffer.from([
+  const incomingPacket = new Uint8Array([
     // Message type
     0x12, 0x34,
     // Sender ID
@@ -42,5 +42,5 @@ test('Unpack an incoming packet.', () => {
   // Then
   expect(unpackedResult.messageType).toBe(0x1234)
   expect(unpackedResult.senderId).toBe(0xaabbccdd)
-  expect(unpackedResult.data).toMatchObject(Buffer.from([0x12, 0x34, 0x56, 0x78]))
+  expect(unpackedResult.data).toMatchObject(new Uint8Array([0x12, 0x34, 0x56, 0x78]))
 })

tests/messages/subscribe.test.ts

@@ -9,6 +9,6 @@ test('Create a subscribe (0x0000) packet.', () => {
   const packedPacket = packers[MessageTypes.Subscribe]({ messageType: messageType })
 
   // Then
-  const expectedResult = Buffer.from([0x00, 0x00, 0x00, 0x02, 0xab, 0xcd])
+  const expectedResult = new Uint8Array([0x00, 0x00, 0x00, 0x02, 0xab, 0xcd])
   expect(packedPacket).toMatchObject(expectedResult)
 })

tests/messages/unsubscribe.test.ts

@@ -9,6 +9,6 @@ test('Create an unsubscribe (0xffff) packet.', () => {
   const packedPacket = packers[MessageTypes.Unsubscribe]({ messageType: messageType })
 
   // Then
-  const expectedResult = Buffer.from([0xff, 0xff, 0x00, 0x02, 0xab, 0xcd])
+  const expectedResult = new Uint8Array([0xff, 0xff, 0x00, 0x02, 0xab, 0xcd])
   expect(packedPacket).toMatchObject(expectedResult)
 })

tests/messages/userDataRequest.test.ts

@@ -2,7 +2,7 @@ import Color from 'color'
 import { MessageTypes } from '../../src/common'
 import { packers, unpackers } from '../../src/mapping'
 
-const KEY = Buffer.from([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F])
+const KEY = new Uint8Array([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F])
 
 test('Create a user data request (0x0002) packet.', () => {
   // Given
@@ -23,7 +23,7 @@ test('Create a user data request (0x0002) packet.', () => {
   // Then
   // We can't check the contents of the data as it's encrypted with a random nonce.
   // Check the message type and length.
-  expect(packedPacket.slice(0, 4)).toMatchObject(Buffer.from([0x00, 0x02, 0x00, 0x3A]))
+  expect(packedPacket.slice(0, 4)).toMatchObject(new Uint8Array([0x00, 0x02, 0x00, 0x3A]))
 
   // Check the total length is as expected.
   expect(packedPacket.length).toBe(62)
@@ -31,7 +31,7 @@ test('Create a user data request (0x0002) packet.', () => {
 
 test('Parse a user data request (0x0002).', () => {
   // Given
-  const ciphertext = Buffer.from([
+  const ciphertext = new Uint8Array([
     0x6e, 0x3f, 0xe8, 0x45, 0x65, 0x59, 0x45, 0x85, 0xb4, 0xb2, 0xbc, 0x7a, 0x03, 0xc5,
     0x6d, 0xf4, 0x23, 0x3e, 0xe9, 0x3b, 0x08, 0x6d, 0x67, 0x85, 0xc1, 0xda, 0xc6, 0x3f,
     0xef, 0xaf, 0x4f, 0xd8, 0x63, 0xe6, 0xc1, 0x6c, 0x98, 0x45, 0x46, 0x4a, 0x3b, 0x61,

tests/messages/userDataResponse.test.ts

@@ -2,7 +2,7 @@ import Color from 'color'
 import { MessageTypes } from '../../src/common'
 import { packers, unpackers } from '../../src/mapping'
 
-const KEY = Buffer.from([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F])
+const KEY = new Uint8Array([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F])
 
 test('Create a user data response (0x0003) packet.', () => {
   // Given
@@ -20,12 +20,10 @@ test('Create a user data response (0x0003) packet.', () => {
     KEY
   )
 
-  console.log(packedPacket.slice(4).toString('hex'))
-
   // Then
   // We can't check the contents of the data as it's encrypted with a random nonce.
   // Check the message type and length.
-  expect(packedPacket.slice(0, 4)).toMatchObject(Buffer.from([0x00, 0x03, 0x00, 0x3A]))
+  expect(packedPacket.slice(0, 4)).toMatchObject(new Uint8Array([0x00, 0x03, 0x00, 0x3A]))
 
   // Check the total length is as expected.
   expect(packedPacket.length).toBe(62)
@@ -33,7 +31,7 @@ test('Create a user data response (0x0003) packet.', () => {
 
 test('Parse a user data response (0x0003).', () => {
   // Given
-  const ciphertext = Buffer.from([
+  const ciphertext = new Uint8Array([
     0x56, 0x71, 0x08, 0xf9, 0x2c, 0x4e, 0x41, 0x13, 0xbe, 0x44, 0xba, 0xd9, 0xe4, 0x25,
     0x14, 0x60, 0x3b, 0x96, 0x7e, 0x0b, 0xbd, 0xac, 0xf0, 0xaf, 0xac, 0xd7, 0x80, 0xe5,
     0x62, 0xd4, 0x33, 0x10, 0x23, 0x6d, 0x00, 0x3c, 0xae, 0x40, 0x6c, 0xe9, 0x40, 0xfc,

tests/utilities/number.test.ts

@@ -5,7 +5,7 @@ test('Test number conversion to Uint16 big endian buffer.', () => {
   const result = numberToUint16BE(1234)
 
   // Then
-  const expectedResult = Buffer.from([0x04, 0xd2])
+  const expectedResult = new Uint8Array([0x04, 0xd2])
   expect(result).toMatchObject(expectedResult)
 })
 
@@ -14,6 +14,6 @@ test('Test number conversion to Uint32 big endian buffer.', () => {
   const result = numberToUint32BE(123456)
 
   // Then
-  const expectedResult = Buffer.from([0x00, 0x01, 0xE2, 0x40])
+  const expectedResult = new Uint8Array([0x00, 0x01, 0xE2, 0x40])
   expect(result).toMatchObject(expectedResult)
 })

tests/utilities/smart-buffer.test.ts

@@ -31,7 +31,7 @@ test('Read a buffer.', () => {
 
   // Then
   const result = smartBuffer.readBytes(4)
-  expect(result).toMatchObject(Buffer.from([0, 1, 2, 3]))
+  expect(result).toMatchObject(new Uint8Array([0, 1, 2, 3]))
 })
 
 test('Read a UInt16 from an offset.', () => {
@@ -67,7 +67,7 @@ test('Read a buffer from an offset.', () => {
   smartBuffer.cursor = 2
 
   // Then
-  expect(smartBuffer.readBytes(4)).toMatchObject(Buffer.from([2, 3, 4, 5]))
+  expect(smartBuffer.readBytes(4)).toMatchObject(new Uint8Array([2, 3, 4, 5]))
 })
 
 test('Write a UInt16.', () => {
@@ -78,7 +78,7 @@ test('Write a UInt16.', () => {
   smartBuffer.writeUInt16(12345)
 
   // Then
-  expect(smartBuffer.data).toMatchObject(Buffer.from([0x30, 0x39]))
+  expect(smartBuffer.data).toMatchObject(new Uint8Array([0x30, 0x39]))
 })
 
 test('Write a UInt32.', () => {
@@ -89,7 +89,7 @@ test('Write a UInt32.', () => {
   smartBuffer.writeUInt32(1234567890)
 
   // Then
-  expect(smartBuffer.data).toMatchObject(Buffer.from([0x49, 0x96, 0x02, 0xD2]))
+  expect(smartBuffer.data).toMatchObject(new Uint8Array([0x49, 0x96, 0x02, 0xD2]))
 })
 
 test('Write a buffer.', () => {
@@ -100,7 +100,7 @@ test('Write a buffer.', () => {
   smartBuffer.writeBytes([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
 
   // Then
-  expect(smartBuffer.data).toMatchObject(Buffer.from([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]))
+  expect(smartBuffer.data).toMatchObject(new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]))
 })
 
 test('Write a UInt16 at an offset.', () => {
@@ -112,7 +112,7 @@ test('Write a UInt16 at an offset.', () => {
   smartBuffer.writeUInt16(12345)
 
   // Then
-  expect(smartBuffer.data).toMatchObject(Buffer.from([0x00, 0x00, 0x30, 0x39]))
+  expect(smartBuffer.data).toMatchObject(new Uint8Array([0x00, 0x00, 0x30, 0x39]))
 })
 
 test('Write a UInt32 at an offset.', () => {
@@ -124,7 +124,7 @@ test('Write a UInt32 at an offset.', () => {
   smartBuffer.writeUInt32(1234567890)
 
   // Then
-  expect(smartBuffer.data).toMatchObject(Buffer.from([0x00, 0x00, 0x49, 0x96, 0x02, 0xD2]))
+  expect(smartBuffer.data).toMatchObject(new Uint8Array([0x00, 0x00, 0x49, 0x96, 0x02, 0xD2]))
 })
 
 test('Write a buffer at an offset.', () => {
@@ -136,7 +136,7 @@ test('Write a buffer at an offset.', () => {
   smartBuffer.writeBytes([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
 
   // Then
-  expect(smartBuffer.data).toMatchObject(Buffer.from([0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]))
+  expect(smartBuffer.data).toMatchObject(new Uint8Array([0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]))
 })
 
 test('Cursor is correctly incremented after reading a UInt16.', () => {