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arihant2mathyouknowone
arihant2math
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youknowone
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add wave at 3.13.2
Signed-off-by: Ashwin Naren <arihant2math@gmail.com>
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‎Lib/test/test_wave.py

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import unittest
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from test import audiotests
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from test import support
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import io
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import struct
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import sys
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import wave
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class WaveTest(audiotests.AudioWriteTests,
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audiotests.AudioTestsWithSourceFile):
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module = wave
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class WavePCM8Test(WaveTest, unittest.TestCase):
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sndfilename = 'pluck-pcm8.wav'
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sndfilenframes = 3307
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nchannels = 2
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sampwidth = 1
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framerate = 11025
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nframes = 48
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comptype = 'NONE'
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compname = 'not compressed'
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frames = bytes.fromhex("""\
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827F CB80 B184 0088 4B86 C883 3F81 837E 387A 3473 A96B 9A66 \
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6D64 4662 8E60 6F60 D762 7B68 936F 5877 177B 757C 887B 5F7B \
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917A BE7B 3C7C E67F 4F84 C389 418E D192 6E97 0296 FF94 0092 \
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C98E D28D 6F8F 4E8F 648C E38A 888A AB8B D18E 0B91 368E C48A \
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""")
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class WavePCM16Test(WaveTest, unittest.TestCase):
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sndfilename = 'pluck-pcm16.wav'
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sndfilenframes = 3307
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nchannels = 2
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sampwidth = 2
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framerate = 11025
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nframes = 48
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comptype = 'NONE'
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compname = 'not compressed'
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frames = bytes.fromhex("""\
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022EFFEA 4B5C00F9 311404EF 80DC0843 CBDF06B2 48AA03F3 BFE701B2 036BFE7C \
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B857FA3E B4B2F34F 2999EBCA 1A5FE6D7 EDFCE491 C626E279 0E05E0B8 EF27E02D \
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5754E275 FB31E843 1373EF89 D827F72C 978BFB7A F5F7FC11 0866FB9C DF30FB42 \
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117FFA36 3EE4FB5D BC75FCB6 66D5FF5F CF16040E 43220978 C1BC0EC8 511F12A4 \
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EEDF1755 82061666 7FFF1446 80001296 499C0EB2 52BA0DB9 EFB70F5C CE400FBC \
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E4B50CEB 63440A5A 08CA0A1F 2BBA0B0B 51460E47 8BCB113C B6F50EEA 44150A59 \
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""")
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if sys.byteorder != 'big':
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frames = wave._byteswap(frames, 2)
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class WavePCM24Test(WaveTest, unittest.TestCase):
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sndfilename = 'pluck-pcm24.wav'
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sndfilenframes = 3307
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nchannels = 2
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sampwidth = 3
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framerate = 11025
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nframes = 48
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comptype = 'NONE'
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compname = 'not compressed'
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frames = bytes.fromhex("""\
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022D65FFEB9D 4B5A0F00FA54 3113C304EE2B 80DCD6084303 \
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CBDEC006B261 48A99803F2F8 BFE82401B07D 036BFBFE7B5D \
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B85756FA3EC9 B4B055F3502B 299830EBCB62 1A5CA7E6D99A \
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EDFA3EE491BD C625EBE27884 0E05A9E0B6CF EF2929E02922 \
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5758D8E27067 FB3557E83E16 1377BFEF8402 D82C5BF7272A \
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978F16FB7745 F5F865FC1013 086635FB9C4E DF30FCFB40EE \
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117FE0FA3438 3EE6B8FB5AC3 BC77A3FCB2F4 66D6DAFF5F32 \
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CF13B9041275 431D69097A8C C1BB600EC74E 5120B912A2BA \
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EEDF641754C0 8207001664B7 7FFFFF14453F 8000001294E6 \
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499C1B0EB3B2 52B73E0DBCA0 EFB2B20F5FD8 CE3CDB0FBE12 \
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E4B49C0CEA2D 6344A80A5A7C 08C8FE0A1FFE 2BB9860B0A0E \
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51486F0E44E1 8BCC64113B05 B6F4EC0EEB36 4413170A5B48 \
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""")
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if sys.byteorder != 'big':
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frames = wave._byteswap(frames, 3)
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class WavePCM24ExtTest(WaveTest, unittest.TestCase):
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sndfilename = 'pluck-pcm24-ext.wav'
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sndfilenframes = 3307
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nchannels = 2
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sampwidth = 3
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framerate = 11025
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nframes = 48
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comptype = 'NONE'
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compname = 'not compressed'
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frames = bytes.fromhex("""\
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022D65FFEB9D 4B5A0F00FA54 3113C304EE2B 80DCD6084303 \
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CBDEC006B261 48A99803F2F8 BFE82401B07D 036BFBFE7B5D \
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B85756FA3EC9 B4B055F3502B 299830EBCB62 1A5CA7E6D99A \
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EDFA3EE491BD C625EBE27884 0E05A9E0B6CF EF2929E02922 \
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5758D8E27067 FB3557E83E16 1377BFEF8402 D82C5BF7272A \
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978F16FB7745 F5F865FC1013 086635FB9C4E DF30FCFB40EE \
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117FE0FA3438 3EE6B8FB5AC3 BC77A3FCB2F4 66D6DAFF5F32 \
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CF13B9041275 431D69097A8C C1BB600EC74E 5120B912A2BA \
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EEDF641754C0 8207001664B7 7FFFFF14453F 8000001294E6 \
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499C1B0EB3B2 52B73E0DBCA0 EFB2B20F5FD8 CE3CDB0FBE12 \
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E4B49C0CEA2D 6344A80A5A7C 08C8FE0A1FFE 2BB9860B0A0E \
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51486F0E44E1 8BCC64113B05 B6F4EC0EEB36 4413170A5B48 \
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""")
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if sys.byteorder != 'big':
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frames = wave._byteswap(frames, 3)
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class WavePCM32Test(WaveTest, unittest.TestCase):
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sndfilename = 'pluck-pcm32.wav'
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sndfilenframes = 3307
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nchannels = 2
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sampwidth = 4
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framerate = 11025
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nframes = 48
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comptype = 'NONE'
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compname = 'not compressed'
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frames = bytes.fromhex("""\
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022D65BCFFEB9D92 4B5A0F8000FA549C 3113C34004EE2BC0 80DCD680084303E0 \
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CBDEC0C006B26140 48A9980003F2F8FC BFE8248001B07D92 036BFB60FE7B5D34 \
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B8575600FA3EC920 B4B05500F3502BC0 29983000EBCB6240 1A5CA7A0E6D99A60 \
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EDFA3E80E491BD40 C625EB80E27884A0 0E05A9A0E0B6CFE0 EF292940E0292280 \
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5758D800E2706700 FB3557D8E83E1640 1377BF00EF840280 D82C5B80F7272A80 \
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978F1600FB774560 F5F86510FC101364 086635A0FB9C4E20 DF30FC40FB40EE28 \
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117FE0A0FA3438B0 3EE6B840FB5AC3F0 BC77A380FCB2F454 66D6DA80FF5F32B4 \
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CF13B980041275B0 431D6980097A8C00 C1BB60000EC74E00 5120B98012A2BAA0 \
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EEDF64C01754C060 820700001664B780 7FFFFFFF14453F40 800000001294E6E0 \
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499C1B000EB3B270 52B73E000DBCA020 EFB2B2E00F5FD880 CE3CDB400FBE1270 \
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E4B49CC00CEA2D90 6344A8800A5A7CA0 08C8FE800A1FFEE0 2BB986C00B0A0E00 \
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51486F800E44E190 8BCC6480113B0580 B6F4EC000EEB3630 441317800A5B48A0 \
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""")
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if sys.byteorder != 'big':
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frames = wave._byteswap(frames, 4)
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class MiscTestCase(unittest.TestCase):
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def test__all__(self):
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not_exported = {'WAVE_FORMAT_PCM', 'WAVE_FORMAT_EXTENSIBLE', 'KSDATAFORMAT_SUBTYPE_PCM'}
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support.check__all__(self, wave, not_exported=not_exported)
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def test_read_deprecations(self):
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filename = support.findfile('pluck-pcm8.wav', subdir='audiodata')
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with wave.open(filename) as reader:
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with self.assertWarns(DeprecationWarning):
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with self.assertRaises(wave.Error):
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reader.getmark('mark')
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with self.assertWarns(DeprecationWarning):
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self.assertIsNone(reader.getmarkers())
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def test_write_deprecations(self):
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with io.BytesIO(b'') as tmpfile:
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with wave.open(tmpfile, 'wb') as writer:
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writer.setnchannels(1)
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writer.setsampwidth(1)
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writer.setframerate(1)
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writer.setcomptype('NONE', 'not compressed')
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with self.assertWarns(DeprecationWarning):
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with self.assertRaises(wave.Error):
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writer.setmark(0, 0, 'mark')
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with self.assertWarns(DeprecationWarning):
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with self.assertRaises(wave.Error):
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writer.getmark('mark')
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with self.assertWarns(DeprecationWarning):
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self.assertIsNone(writer.getmarkers())
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class WaveLowLevelTest(unittest.TestCase):
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def test_read_no_chunks(self):
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b = b'SPAM'
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with self.assertRaises(EOFError):
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wave.open(io.BytesIO(b))
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def test_read_no_riff_chunk(self):
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b = b'SPAM' + struct.pack('<L', 0)
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with self.assertRaisesRegex(wave.Error,
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'file does not start with RIFF id'):
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wave.open(io.BytesIO(b))
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def test_read_not_wave(self):
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b = b'RIFF' + struct.pack('<L', 4) + b'SPAM'
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with self.assertRaisesRegex(wave.Error,
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'not a WAVE file'):
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wave.open(io.BytesIO(b))
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def test_read_no_fmt_no_data_chunk(self):
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b = b'RIFF' + struct.pack('<L', 4) + b'WAVE'
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with self.assertRaisesRegex(wave.Error,
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'fmt chunk and/or data chunk missing'):
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wave.open(io.BytesIO(b))
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def test_read_no_data_chunk(self):
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b = b'RIFF' + struct.pack('<L', 28) + b'WAVE'
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b += b'fmt ' + struct.pack('<LHHLLHH', 16, 1, 1, 11025, 11025, 1, 8)
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with self.assertRaisesRegex(wave.Error,
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'fmt chunk and/or data chunk missing'):
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wave.open(io.BytesIO(b))
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def test_read_no_fmt_chunk(self):
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b = b'RIFF' + struct.pack('<L', 12) + b'WAVE'
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b += b'data' + struct.pack('<L', 0)
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with self.assertRaisesRegex(wave.Error, 'data chunk before fmt chunk'):
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wave.open(io.BytesIO(b))
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def test_read_wrong_form(self):
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b = b'RIFF' + struct.pack('<L', 36) + b'WAVE'
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b += b'fmt ' + struct.pack('<LHHLLHH', 16, 2, 1, 11025, 11025, 1, 1)
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b += b'data' + struct.pack('<L', 0)
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with self.assertRaisesRegex(wave.Error, 'unknown format: 2'):
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wave.open(io.BytesIO(b))
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def test_read_wrong_number_of_channels(self):
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b = b'RIFF' + struct.pack('<L', 36) + b'WAVE'
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b += b'fmt ' + struct.pack('<LHHLLHH', 16, 1, 0, 11025, 11025, 1, 8)
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b += b'data' + struct.pack('<L', 0)
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with self.assertRaisesRegex(wave.Error, 'bad # of channels'):
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wave.open(io.BytesIO(b))
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def test_read_wrong_sample_width(self):
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b = b'RIFF' + struct.pack('<L', 36) + b'WAVE'
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b += b'fmt ' + struct.pack('<LHHLLHH', 16, 1, 1, 11025, 11025, 1, 0)
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b += b'data' + struct.pack('<L', 0)
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with self.assertRaisesRegex(wave.Error, 'bad sample width'):
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wave.open(io.BytesIO(b))
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if __name__ == '__main__':
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unittest.main()

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