1import unittest 2from test import audiotests 3from test import support 4from audioop import byteswap 5import io 6import struct 7import sys 8import wave 9 10 11class WaveTest(audiotests.AudioWriteTests, 12 audiotests.AudioTestsWithSourceFile): 13 module = wave 14 15 16class WavePCM8Test(WaveTest, unittest.TestCase): 17 sndfilename = 'pluck-pcm8.wav' 18 sndfilenframes = 3307 19 nchannels = 2 20 sampwidth = 1 21 framerate = 11025 22 nframes = 48 23 comptype = 'NONE' 24 compname = 'not compressed' 25 frames = bytes.fromhex("""\ 26 827F CB80 B184 0088 4B86 C883 3F81 837E 387A 3473 A96B 9A66 \ 27 6D64 4662 8E60 6F60 D762 7B68 936F 5877 177B 757C 887B 5F7B \ 28 917A BE7B 3C7C E67F 4F84 C389 418E D192 6E97 0296 FF94 0092 \ 29 C98E D28D 6F8F 4E8F 648C E38A 888A AB8B D18E 0B91 368E C48A \ 30 """) 31 32 33class WavePCM16Test(WaveTest, unittest.TestCase): 34 sndfilename = 'pluck-pcm16.wav' 35 sndfilenframes = 3307 36 nchannels = 2 37 sampwidth = 2 38 framerate = 11025 39 nframes = 48 40 comptype = 'NONE' 41 compname = 'not compressed' 42 frames = bytes.fromhex("""\ 43 022EFFEA 4B5C00F9 311404EF 80DC0843 CBDF06B2 48AA03F3 BFE701B2 036BFE7C \ 44 B857FA3E B4B2F34F 2999EBCA 1A5FE6D7 EDFCE491 C626E279 0E05E0B8 EF27E02D \ 45 5754E275 FB31E843 1373EF89 D827F72C 978BFB7A F5F7FC11 0866FB9C DF30FB42 \ 46 117FFA36 3EE4FB5D BC75FCB6 66D5FF5F CF16040E 43220978 C1BC0EC8 511F12A4 \ 47 EEDF1755 82061666 7FFF1446 80001296 499C0EB2 52BA0DB9 EFB70F5C CE400FBC \ 48 E4B50CEB 63440A5A 08CA0A1F 2BBA0B0B 51460E47 8BCB113C B6F50EEA 44150A59 \ 49 """) 50 if sys.byteorder != 'big': 51 frames = byteswap(frames, 2) 52 53 54class WavePCM24Test(WaveTest, unittest.TestCase): 55 sndfilename = 'pluck-pcm24.wav' 56 sndfilenframes = 3307 57 nchannels = 2 58 sampwidth = 3 59 framerate = 11025 60 nframes = 48 61 comptype = 'NONE' 62 compname = 'not compressed' 63 frames = bytes.fromhex("""\ 64 022D65FFEB9D 4B5A0F00FA54 3113C304EE2B 80DCD6084303 \ 65 CBDEC006B261 48A99803F2F8 BFE82401B07D 036BFBFE7B5D \ 66 B85756FA3EC9 B4B055F3502B 299830EBCB62 1A5CA7E6D99A \ 67 EDFA3EE491BD C625EBE27884 0E05A9E0B6CF EF2929E02922 \ 68 5758D8E27067 FB3557E83E16 1377BFEF8402 D82C5BF7272A \ 69 978F16FB7745 F5F865FC1013 086635FB9C4E DF30FCFB40EE \ 70 117FE0FA3438 3EE6B8FB5AC3 BC77A3FCB2F4 66D6DAFF5F32 \ 71 CF13B9041275 431D69097A8C C1BB600EC74E 5120B912A2BA \ 72 EEDF641754C0 8207001664B7 7FFFFF14453F 8000001294E6 \ 73 499C1B0EB3B2 52B73E0DBCA0 EFB2B20F5FD8 CE3CDB0FBE12 \ 74 E4B49C0CEA2D 6344A80A5A7C 08C8FE0A1FFE 2BB9860B0A0E \ 75 51486F0E44E1 8BCC64113B05 B6F4EC0EEB36 4413170A5B48 \ 76 """) 77 if sys.byteorder != 'big': 78 frames = byteswap(frames, 3) 79 80 81class WavePCM32Test(WaveTest, unittest.TestCase): 82 sndfilename = 'pluck-pcm32.wav' 83 sndfilenframes = 3307 84 nchannels = 2 85 sampwidth = 4 86 framerate = 11025 87 nframes = 48 88 comptype = 'NONE' 89 compname = 'not compressed' 90 frames = bytes.fromhex("""\ 91 022D65BCFFEB9D92 4B5A0F8000FA549C 3113C34004EE2BC0 80DCD680084303E0 \ 92 CBDEC0C006B26140 48A9980003F2F8FC BFE8248001B07D92 036BFB60FE7B5D34 \ 93 B8575600FA3EC920 B4B05500F3502BC0 29983000EBCB6240 1A5CA7A0E6D99A60 \ 94 EDFA3E80E491BD40 C625EB80E27884A0 0E05A9A0E0B6CFE0 EF292940E0292280 \ 95 5758D800E2706700 FB3557D8E83E1640 1377BF00EF840280 D82C5B80F7272A80 \ 96 978F1600FB774560 F5F86510FC101364 086635A0FB9C4E20 DF30FC40FB40EE28 \ 97 117FE0A0FA3438B0 3EE6B840FB5AC3F0 BC77A380FCB2F454 66D6DA80FF5F32B4 \ 98 CF13B980041275B0 431D6980097A8C00 C1BB60000EC74E00 5120B98012A2BAA0 \ 99 EEDF64C01754C060 820700001664B780 7FFFFFFF14453F40 800000001294E6E0 \ 100 499C1B000EB3B270 52B73E000DBCA020 EFB2B2E00F5FD880 CE3CDB400FBE1270 \ 101 E4B49CC00CEA2D90 6344A8800A5A7CA0 08C8FE800A1FFEE0 2BB986C00B0A0E00 \ 102 51486F800E44E190 8BCC6480113B0580 B6F4EC000EEB3630 441317800A5B48A0 \ 103 """) 104 if sys.byteorder != 'big': 105 frames = byteswap(frames, 4) 106 107 108class MiscTestCase(unittest.TestCase): 109 def test__all__(self): 110 support.check__all__(self, wave, not_exported={'WAVE_FORMAT_PCM'}) 111 112 113class WaveLowLevelTest(unittest.TestCase): 114 115 def test_read_no_chunks(self): 116 b = b'SPAM' 117 with self.assertRaises(EOFError): 118 wave.open(io.BytesIO(b)) 119 120 def test_read_no_riff_chunk(self): 121 b = b'SPAM' + struct.pack('<L', 0) 122 with self.assertRaisesRegex(wave.Error, 123 'file does not start with RIFF id'): 124 wave.open(io.BytesIO(b)) 125 126 def test_read_not_wave(self): 127 b = b'RIFF' + struct.pack('<L', 4) + b'SPAM' 128 with self.assertRaisesRegex(wave.Error, 129 'not a WAVE file'): 130 wave.open(io.BytesIO(b)) 131 132 def test_read_no_fmt_no_data_chunk(self): 133 b = b'RIFF' + struct.pack('<L', 4) + b'WAVE' 134 with self.assertRaisesRegex(wave.Error, 135 'fmt chunk and/or data chunk missing'): 136 wave.open(io.BytesIO(b)) 137 138 def test_read_no_data_chunk(self): 139 b = b'RIFF' + struct.pack('<L', 28) + b'WAVE' 140 b += b'fmt ' + struct.pack('<LHHLLHH', 16, 1, 1, 11025, 11025, 1, 8) 141 with self.assertRaisesRegex(wave.Error, 142 'fmt chunk and/or data chunk missing'): 143 wave.open(io.BytesIO(b)) 144 145 def test_read_no_fmt_chunk(self): 146 b = b'RIFF' + struct.pack('<L', 12) + b'WAVE' 147 b += b'data' + struct.pack('<L', 0) 148 with self.assertRaisesRegex(wave.Error, 'data chunk before fmt chunk'): 149 wave.open(io.BytesIO(b)) 150 151 def test_read_wrong_form(self): 152 b = b'RIFF' + struct.pack('<L', 36) + b'WAVE' 153 b += b'fmt ' + struct.pack('<LHHLLHH', 16, 2, 1, 11025, 11025, 1, 1) 154 b += b'data' + struct.pack('<L', 0) 155 with self.assertRaisesRegex(wave.Error, 'unknown format: 2'): 156 wave.open(io.BytesIO(b)) 157 158 def test_read_wrong_number_of_channels(self): 159 b = b'RIFF' + struct.pack('<L', 36) + b'WAVE' 160 b += b'fmt ' + struct.pack('<LHHLLHH', 16, 1, 0, 11025, 11025, 1, 8) 161 b += b'data' + struct.pack('<L', 0) 162 with self.assertRaisesRegex(wave.Error, 'bad # of channels'): 163 wave.open(io.BytesIO(b)) 164 165 def test_read_wrong_sample_width(self): 166 b = b'RIFF' + struct.pack('<L', 36) + b'WAVE' 167 b += b'fmt ' + struct.pack('<LHHLLHH', 16, 1, 1, 11025, 11025, 1, 0) 168 b += b'data' + struct.pack('<L', 0) 169 with self.assertRaisesRegex(wave.Error, 'bad sample width'): 170 wave.open(io.BytesIO(b)) 171 172 173if __name__ == '__main__': 174 unittest.main() 175