Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_aifc.py @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents 6c8b380db727
children b36cb4602e21
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 from test.test_support import findfile, run_unittest, TESTFN
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2 import unittest
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3 import os
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4
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5 import aifc
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6
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7
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8 class AIFCTest(unittest.TestCase):
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9
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10 def setUp(self):
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11 self.f = self.fout = None
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12 self.sndfilepath = findfile('Sine-1000Hz-300ms.aif')
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13
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14 def tearDown(self):
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15 if self.f is not None:
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16 self.f.close()
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17 if self.fout is not None:
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18 try:
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19 self.fout.close()
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20 except (aifc.Error, AttributeError):
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21 pass
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22 try:
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23 os.remove(TESTFN)
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24 except OSError:
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25 pass
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26
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27 def test_skipunknown(self):
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28 #Issue 2245
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29 #This file contains chunk types aifc doesn't recognize.
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30 self.f = aifc.open(self.sndfilepath)
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31
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32 def test_params(self):
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33 f = self.f = aifc.open(self.sndfilepath)
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34 self.assertEqual(f.getnchannels(), 2)
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35 self.assertEqual(f.getsampwidth(), 2)
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36 self.assertEqual(f.getframerate(), 48000)
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37 self.assertEqual(f.getnframes(), 14400)
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38 self.assertEqual(f.getcomptype(), 'NONE')
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39 self.assertEqual(f.getcompname(), 'not compressed')
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40 self.assertEqual(f.getparams(), (2, 2, 48000, 14400, 'NONE', 'not compressed'))
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41
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42 def test_read(self):
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43 f = self.f = aifc.open(self.sndfilepath)
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44 self.assertEqual(f.tell(), 0)
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45 self.assertEqual(f.readframes(2), '\x00\x00\x00\x00\x0b\xd4\x0b\xd4')
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46 f.rewind()
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47 pos0 = f.tell()
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48 self.assertEqual(pos0, 0)
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49 self.assertEqual(f.readframes(2), '\x00\x00\x00\x00\x0b\xd4\x0b\xd4')
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50 pos2 = f.tell()
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51 self.assertEqual(pos2, 2)
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52 self.assertEqual(f.readframes(2), '\x17t\x17t"\xad"\xad')
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53 f.setpos(pos2)
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54 self.assertEqual(f.readframes(2), '\x17t\x17t"\xad"\xad')
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55 f.setpos(pos0)
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56 self.assertEqual(f.readframes(2), '\x00\x00\x00\x00\x0b\xd4\x0b\xd4')
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57
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58 def test_write(self):
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59 f = self.f = aifc.open(self.sndfilepath)
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60 fout = self.fout = aifc.open(TESTFN, 'wb')
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61 fout.aifc()
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62 fout.setparams(f.getparams())
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63 for frame in range(f.getnframes()):
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64 fout.writeframes(f.readframes(1))
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65 fout.close()
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66 fout = self.fout = aifc.open(TESTFN, 'rb')
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67 f.rewind()
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68 self.assertEqual(f.getparams(), fout.getparams())
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69 self.assertEqual(f.readframes(5), fout.readframes(5))
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70
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71 def test_compress(self):
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72 f = self.f = aifc.open(self.sndfilepath)
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73 fout = self.fout = aifc.open(TESTFN, 'wb')
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74 fout.aifc()
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75 fout.setnchannels(f.getnchannels())
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76 fout.setsampwidth(f.getsampwidth())
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77 fout.setframerate(f.getframerate())
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78 fout.setcomptype('ULAW', 'foo')
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79 for frame in range(f.getnframes()):
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80 fout.writeframes(f.readframes(1))
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81 fout.close()
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82 self.assertLess(
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83 os.stat(TESTFN).st_size,
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84 os.stat(self.sndfilepath).st_size*0.75,
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85 )
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86 fout = self.fout = aifc.open(TESTFN, 'rb')
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87 f.rewind()
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88 self.assertEqual(f.getparams()[0:3], fout.getparams()[0:3])
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89 self.assertEqual(fout.getcomptype(), 'ULAW')
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90 self.assertEqual(fout.getcompname(), 'foo')
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91 # XXX: this test fails, not sure if it should succeed or not
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92 # self.assertEqual(f.readframes(5), fout.readframes(5))
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93
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94 def test_close(self):
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95 class Wrapfile(object):
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96 def __init__(self, file):
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97 self.file = open(file, 'rb')
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98 self.closed = False
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99 def close(self):
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100 self.file.close()
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101 self.closed = True
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102 def __getattr__(self, attr): return getattr(self.file, attr)
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103 testfile = Wrapfile(self.sndfilepath)
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104 f = self.f = aifc.open(testfile)
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105 self.assertEqual(testfile.closed, False)
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106 f.close()
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107 self.assertEqual(testfile.closed, True)
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108
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109
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110 def test_main():
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111 run_unittest(AIFCTest)
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112
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113
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114 if __name__ == "__main__":
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115 unittest.main()