diff --git a/tests/test_audio.py b/tests/test_audio.py
index fc206b4..5142dc1 100644
--- a/tests/test_audio.py
+++ b/tests/test_audio.py
@@ -4,9 +4,10 @@ import signal
 
 
 def test_launch():
-    p = audio.ALSA(tool='true', Fs=32000).launch(fname='fname')
+    p = audio.ALSA(tool='true', Fs=32000).launch()
     assert p.wait() == 0
 
+
 def test_exit():
     p = audio.ALSA(tool='python', Fs=32000).launch(fname='-', stdin=sp.PIPE)
     s = b'import sys; sys.exit(42)'
@@ -14,6 +15,7 @@ def test_exit():
     p.stdin.close()
     assert p.wait() == 42
 
+
 def test_io():
     p = audio.ALSA(tool='python', Fs=32000)
     p = p.launch(fname='-', stdin=sp.PIPE, stdout=sp.PIPE)
@@ -22,6 +24,7 @@ def test_io():
     p.stdin.close()
     assert p.stdout.read(len(s)) == s
 
+
 def test_kill():
     p = audio.ALSA(tool='python', Fs=32000)
     p = p.launch(fname='-', stdin=sp.PIPE, stdout=sp.PIPE)