Fix player test fork() on macOS

tests/test_player.py

@@ -1,3 +1,4 @@
+from helpers.os_environment import isMacOS
 from queue import Empty
 import unittest
 import multiprocessing
@@ -285,4 +286,7 @@ class TestPlayer(unittest.TestCase):
 
 # runs the unit tests in the module
 if __name__ == "__main__":
+    # Fixes fork error.
+    if isMacOS():
+        multiprocessing.set_start_method("spawn", True)
     unittest.main()

websocket_server.py

@@ -233,6 +233,5 @@ class WebsocketServer:
             await asyncio.sleep(0.02)
 
 
-
 if __name__ == "__main__":
     print("Don't do this")