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Diffstat (limited to 'Lib/test/test_ossaudiodev.py')
| -rw-r--r-- | Lib/test/test_ossaudiodev.py | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/Lib/test/test_ossaudiodev.py b/Lib/test/test_ossaudiodev.py index 8810516..9f64406 100644 --- a/Lib/test/test_ossaudiodev.py +++ b/Lib/test/test_ossaudiodev.py @@ -69,14 +69,25 @@ 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 + #print ("actual running time was %.2f sec (%.1f%% difference)" + # % (elapsed_time, percent_diff)) + 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: |