| 4710c53d |
1 | from test import test_support\r |
| 2 | test_support.requires('audio')\r |
| 3 | \r |
| 4 | from test.test_support import findfile, run_unittest\r |
| 5 | \r |
| 6 | import errno\r |
| 7 | import sys\r |
| 8 | import audioop\r |
| 9 | import unittest\r |
| 10 | \r |
| 11 | linuxaudiodev = test_support.import_module('linuxaudiodev', deprecated=True)\r |
| 12 | sunaudio = test_support.import_module('sunaudio', deprecated=True)\r |
| 13 | \r |
| 14 | SND_FORMAT_MULAW_8 = 1\r |
| 15 | \r |
| 16 | class LinuxAudioDevTests(unittest.TestCase):\r |
| 17 | \r |
| 18 | def setUp(self):\r |
| 19 | self.dev = linuxaudiodev.open('w')\r |
| 20 | \r |
| 21 | def tearDown(self):\r |
| 22 | self.dev.close()\r |
| 23 | \r |
| 24 | def test_methods(self):\r |
| 25 | # at least check that these methods can be invoked\r |
| 26 | self.dev.bufsize()\r |
| 27 | self.dev.obufcount()\r |
| 28 | self.dev.obuffree()\r |
| 29 | self.dev.getptr()\r |
| 30 | self.dev.fileno()\r |
| 31 | \r |
| 32 | def test_play_sound_file(self):\r |
| 33 | path = findfile("audiotest.au")\r |
| 34 | fp = open(path, 'r')\r |
| 35 | size, enc, rate, nchannels, extra = sunaudio.gethdr(fp)\r |
| 36 | data = fp.read()\r |
| 37 | fp.close()\r |
| 38 | \r |
| 39 | if enc != SND_FORMAT_MULAW_8:\r |
| 40 | self.fail("Expect .au file with 8-bit mu-law samples")\r |
| 41 | \r |
| 42 | # convert the data to 16-bit signed\r |
| 43 | data = audioop.ulaw2lin(data, 2)\r |
| 44 | \r |
| 45 | # set the data format\r |
| 46 | if sys.byteorder == 'little':\r |
| 47 | fmt = linuxaudiodev.AFMT_S16_LE\r |
| 48 | else:\r |
| 49 | fmt = linuxaudiodev.AFMT_S16_BE\r |
| 50 | \r |
| 51 | # set parameters based on .au file headers\r |
| 52 | self.dev.setparameters(rate, 16, nchannels, fmt)\r |
| 53 | self.dev.write(data)\r |
| 54 | self.dev.flush()\r |
| 55 | \r |
| 56 | def test_errors(self):\r |
| 57 | size = 8\r |
| 58 | fmt = linuxaudiodev.AFMT_U8\r |
| 59 | rate = 8000\r |
| 60 | nchannels = 1\r |
| 61 | try:\r |
| 62 | self.dev.setparameters(-1, size, nchannels, fmt)\r |
| 63 | except ValueError, err:\r |
| 64 | self.assertEqual(err.args[0], "expected rate >= 0, not -1")\r |
| 65 | try:\r |
| 66 | self.dev.setparameters(rate, -2, nchannels, fmt)\r |
| 67 | except ValueError, err:\r |
| 68 | self.assertEqual(err.args[0], "expected sample size >= 0, not -2")\r |
| 69 | try:\r |
| 70 | self.dev.setparameters(rate, size, 3, fmt)\r |
| 71 | except ValueError, err:\r |
| 72 | self.assertEqual(err.args[0], "nchannels must be 1 or 2, not 3")\r |
| 73 | try:\r |
| 74 | self.dev.setparameters(rate, size, nchannels, 177)\r |
| 75 | except ValueError, err:\r |
| 76 | self.assertEqual(err.args[0], "unknown audio encoding: 177")\r |
| 77 | try:\r |
| 78 | self.dev.setparameters(rate, size, nchannels, linuxaudiodev.AFMT_U16_LE)\r |
| 79 | except ValueError, err:\r |
| 80 | self.assertEqual(err.args[0], "for linear unsigned 16-bit little-endian "\r |
| 81 | "audio, expected sample size 16, not 8")\r |
| 82 | try:\r |
| 83 | self.dev.setparameters(rate, 16, nchannels, fmt)\r |
| 84 | except ValueError, err:\r |
| 85 | self.assertEqual(err.args[0], "for linear unsigned 8-bit audio, expected "\r |
| 86 | "sample size 8, not 16")\r |
| 87 | \r |
| 88 | def test_main():\r |
| 89 | try:\r |
| 90 | dsp = linuxaudiodev.open('w')\r |
| 91 | except linuxaudiodev.error, msg:\r |
| 92 | if msg.args[0] in (errno.EACCES, errno.ENOENT, errno.ENODEV, errno.EBUSY):\r |
| 93 | raise unittest.SkipTest(msg)\r |
| 94 | raise\r |
| 95 | dsp.close()\r |
| 96 | run_unittest(LinuxAudioDevTests)\r |
| 97 | \r |
| 98 | if __name__ == '__main__':\r |
| 99 | test_main()\r |
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