Unit test fixes

src/__tests__/connection.test.js

@@ -15,6 +15,8 @@ test(`connect fails when error occurs during createConnection`, async () => {
 test(`socket receive data fails when decryption fails`, async () => {
   let cbl = {};
   const socket = {
+    setNoDelay: () => {},
+    setKeepAlive: () => {},
     on: (name, cb) => {
       cbl[name] = cb;
     },
@@ -40,6 +42,8 @@ test(`socket receive data fails when decryption fails`, async () => {
 
 test(`disconnect succeeds if an error is thrown`, async () => {
   const socket = {
+    setNoDelay: () => {},
+    setKeepAlive: () => {},
     destroy: () => {
       throw new Error('mock destroy error');
     },
@@ -53,6 +57,8 @@ test(`disconnect succeeds if an error is thrown`, async () => {
 test(`send fails on socket error`, async () => {
   let cbl = {};
   const socket = {
+    setNoDelay: () => {},
+    setKeepAlive: () => {},
     on: (name, cb) => {
       cbl[name] = cb;
     },
@@ -70,6 +76,8 @@ test(`send fails on socket error`, async () => {
 test(`error is thrown when socket is closed`, async () => {
   let cbl = {};
   const socket = {
+    setNoDelay: () => {},
+    setKeepAlive: () => {},
     on: (name, cb) => {
       cbl[name] = cb;
     },
@@ -87,6 +95,8 @@ test(`error is thrown when socket is closed`, async () => {
 test(`send fails when write error occurs`, async () => {
   let cbl = {};
   const socket = {
+    setNoDelay: () => {},
+    setKeepAlive: () => {},
     on: (name, cb) => {
       cbl[name] = cb;
     },

src/networking/packet.js

@@ -24,7 +24,7 @@ export default class packet {
     this.token = token;
   }
 
-  buffer = null;
+  buffer = new Uint8Array(0);
   decode_offset = 0;
   token;
 
@@ -180,9 +180,11 @@ export default class packet {
           ...this.buffer.slice(nonce.length + mac.length),
           ...this.buffer.slice(nonce.length, nonce.length + mac.length),
         ]);
-        this.buffer = Buffer.from(
-          new XChaCha20Poly1305(key).open(nonce, this.buffer, aad)
-        );
+        const result = new XChaCha20Poly1305(key).open(nonce, this.buffer, aad);
+        if (!result) {
+          throw new Error('decryption failed');
+        }
+        this.buffer = Buffer.from(result);
       }
 
       this.buffer = new Uint8Array(this.buffer);