diff options
Diffstat (limited to 'Lib/test/test_ossaudiodev.py')
| -rw-r--r-- | Lib/test/test_ossaudiodev.py | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/Lib/test/test_ossaudiodev.py b/Lib/test/test_ossaudiodev.py index 8810516e8db..5868ea7f1e9 100644 --- a/Lib/test/test_ossaudiodev.py +++ b/Lib/test/test_ossaudiodev.py @@ -40,6 +40,10 @@ def read_sound_file(path): data = audioop.ulaw2lin(data, 2) return (data, rate, 16, nchannels) +# version of assert that still works with -O +def _assert(expr, message=None): + if not expr: + raise AssertionError(message or "assertion failed") def play_sound_file(data, rate, ssize, nchannels): try: @@ -57,9 +61,9 @@ def play_sound_file(data, rate, ssize, nchannels): dsp.fileno() # Make sure the read-only attributes work. - assert dsp.closed is False, "dsp.closed is not False" - assert dsp.name == "/dev/dsp" - assert dsp.mode == 'w', "bad dsp.mode: %r" % dsp.mode + _assert(dsp.closed is False, "dsp.closed is not False") + _assert(dsp.name == "/dev/dsp") + _assert(dsp.mode == 'w', "bad dsp.mode: %r" % dsp.mode) # And make sure they're really read-only. for attr in ('closed', 'name', 'mode'): @@ -69,14 +73,23 @@ def play_sound_file(data, rate, ssize, nchannels): except TypeError: pass + # Compute expected running time of sound sample (in seconds). + expected_time = float(len(data)) / (ssize/8) / nchannels / rate + # set parameters based on .au file headers dsp.setparameters(AFMT_S16_NE, nchannels, rate) + print ("playing test sound file (expected running time: %.2f sec)" + % expected_time) t1 = time.time() - print "playing test sound file..." dsp.write(data) dsp.close() t2 = time.time() - print "elapsed time: %.1f sec" % (t2-t1) + elapsed_time = t2 - t1 + + percent_diff = (abs(elapsed_time - expected_time) / expected_time) * 100 + _assert(percent_diff <= 10.0, \ + ("elapsed time (%.2f sec) > 10%% off of expected time (%.2f sec)" + % (elapsed_time, expected_time))) def test_setparameters(dsp): # Two configurations for testing: @@ -101,11 +114,11 @@ def test_setparameters(dsp): # setparameters() should be able to set this configuration in # either strict or non-strict mode. result = dsp.setparameters(fmt, channels, rate, False) - assert result == (fmt, channels, rate), \ - "setparameters%r: returned %r" % (config + result) + _assert(result == (fmt, channels, rate), + "setparameters%r: returned %r" % (config, result)) result = dsp.setparameters(fmt, channels, rate, True) - assert result == (fmt, channels, rate), \ - "setparameters%r: returned %r" % (config + result) + _assert(result == (fmt, channels, rate), + "setparameters%r: returned %r" % (config, result)) def test_bad_setparameters(dsp): @@ -123,8 +136,8 @@ def test_bad_setparameters(dsp): ]: (fmt, channels, rate) = config result = dsp.setparameters(fmt, channels, rate, False) - assert result != config, \ - "setparameters: unexpectedly got requested configuration" + _assert(result != config, + "setparameters: unexpectedly got requested configuration") try: result = dsp.setparameters(fmt, channels, rate, True) @@ -145,6 +158,6 @@ def test(): #test_bad_setparameters(dsp) finally: dsp.close() - assert dsp.closed is True, "dsp.closed is not True" + _assert(dsp.closed is True, "dsp.closed is not True") test() |