1 files changed, 59 insertions, 4 deletions
diff --git a/Lib/test/test_linuxaudiodev.py b/Lib/test/test_linuxaudiodev.py
index 4faaab1..535f84c 100644
--- a/Lib/test/test_linuxaudiodev.py
+++ b/Lib/test/test_linuxaudiodev.py
@@ -1,23 +1,78 @@
 from test_support import verbose, findfile, TestFailed, TestSkipped
-import linuxaudiodev
+
 import errno
+import fcntl
+import linuxaudiodev
 import os
+import select
+import sunaudio
+import time
+
+SND_FORMAT_MULAW_8 = 1
 
 def play_sound_file(path):
     fp = open(path, 'r')
+    size, enc, rate, nchannels, extra = sunaudio.gethdr(fp)
     data = fp.read()
     fp.close()
+
+    if enc != SND_FORMAT_MULAW_8:
+        print "Expect .au file with 8-bit mu-law samples"
+        return
+
     try:
         a = linuxaudiodev.open('w')
     except linuxaudiodev.error, msg:
         if msg[0] in (errno.EACCES, errno.ENODEV):
             raise TestSkipped, msg
         raise TestFailed, msg
-    else:
-        a.write(data)
-        a.close()
+
+    # at least check that these methods can be invoked
+    a.bufsize()
+    a.obufcount()
+    a.obuffree()
+    a.getptr()
+    a.fileno()
+
+    # set parameters based on .au file headers
+    a.setparameters(rate, 8, nchannels, linuxaudiodev.AFMT_MU_LAW, 1)
+    a.write(data)
+    a.flush()
+    a.close()
+
+def test_errors():
+    a = linuxaudiodev.open("w")
+    size = 8
+    fmt = linuxaudiodev.AFMT_U8
+    rate = 8000
+    nchannels = 1
+    try:
+        a.setparameters(-1, size, nchannels, fmt)
+    except ValueError, msg:
+        print msg
+    try:
+        a.setparameters(rate, -2, nchannels, fmt)
+    except ValueError, msg:
+        print msg
+    try:
+        a.setparameters(rate, size, 3, fmt)
+    except ValueError, msg:
+        print msg
+    try:
+        a.setparameters(rate, size, nchannels, 177)
+    except ValueError, msg:
+        print msg
+    try:
+        a.setparameters(rate, size, nchannels, linuxaudiodev.AFMT_U16_LE)
+    except ValueError, msg:
+        print msg
+    try:
+        a.setparameters(rate, 16, nchannels, fmt)
+    except ValueError, msg:
+        print msg
 
 def test():
     play_sound_file(findfile('audiotest.au'))
+    test_errors()
 
 test()