diff --git a/test/error_test.py b/test/error_test.py
index a2f8b42..9085a96 100644
--- a/test/error_test.py
+++ b/test/error_test.py
@@ -2,7 +2,7 @@
 """
 >>> import os
 >>> import sys
->>> from nava import play, stop
+>>> from nava import play, stop, Engine
 >>> test_sound_path = os.path.join("others", "test.wav")
 >>> play("test.wav")
 Traceback (most recent call last):
@@ -26,20 +26,11 @@
 nava.errors.NavaBaseError: `engine` type must be `Engine` enum.
 >>> sys_platform = sys.platform
 >>> if sys_platform == "win32":
-...     sound_id = nava.play(test_sound_path, async_mode=False, engine=nava.Engine.AFPLAY)
+...     sound_id = play(test_sound_path, async_mode=False, engine=Engine.AFPLAY)
 ... elif sys_platform == "darwin":
-...     sound_id = nava.play(test_sound_path, async_mode=False, engine=nava.Engine.WINSOUND)
+...     sound_id = play(test_sound_path, async_mode=False, engine=Engine.WINSOUND)
 ... else:
-...     sound_id = nava.play(test_sound_path, async_mode=False, engine=nava.Engine.WINSOUND)
-Traceback (most recent call last):
-    ...
-nava.errors.NavaBaseError: Sound can not play due to some issues.
->>> if sys_platform == "win32":
-...     sound_id = nava.play(test_sound_path, async_mode=True, engine=nava.Engine.AFPLAY)
-... elif sys_platform == "darwin":
-...     sound_id = nava.play(test_sound_path, async_mode=True, engine=nava.Engine.WINSOUND)
-... else:
-...     sound_id = nava.play(test_sound_path, async_mode=True, engine=nava.Engine.WINSOUND)
+...     sound_id = play(test_sound_path, async_mode=False, engine=Engine.WINSOUND)
 Traceback (most recent call last):
     ...
 nava.errors.NavaBaseError: Sound can not play due to some issues.