| import unittest |
| from test import audiotests |
| from test import support |
| from test.support.os_helper import FakePath, unlink |
| import io |
| import os |
| import struct |
| import tempfile |
| import sys |
| import wave |
| |
| |
| class WaveTest(audiotests.AudioWriteTests, |
| audiotests.AudioTestsWithSourceFile): |
| module = wave |
| |
| |
| class WavePCM8Test(WaveTest, unittest.TestCase): |
| sndfilename = 'pluck-pcm8.wav' |
| sndfilenframes = 3307 |
| nchannels = 2 |
| sampwidth = 1 |
| framerate = 11025 |
| nframes = 48 |
| format = wave.WAVE_FORMAT_PCM |
| comptype = 'NONE' |
| compname = 'not compressed' |
| frames = bytes.fromhex("""\ |
| 827F CB80 B184 0088 4B86 C883 3F81 837E 387A 3473 A96B 9A66 \ |
| 6D64 4662 8E60 6F60 D762 7B68 936F 5877 177B 757C 887B 5F7B \ |
| 917A BE7B 3C7C E67F 4F84 C389 418E D192 6E97 0296 FF94 0092 \ |
| C98E D28D 6F8F 4E8F 648C E38A 888A AB8B D18E 0B91 368E C48A \ |
| """) |
| |
| |
| class WavePCM16Test(WaveTest, unittest.TestCase): |
| sndfilename = 'pluck-pcm16.wav' |
| sndfilenframes = 3307 |
| nchannels = 2 |
| sampwidth = 2 |
| framerate = 11025 |
| nframes = 48 |
| format = wave.WAVE_FORMAT_PCM |
| comptype = 'NONE' |
| compname = 'not compressed' |
| frames = bytes.fromhex("""\ |
| 022EFFEA 4B5C00F9 311404EF 80DC0843 CBDF06B2 48AA03F3 BFE701B2 036BFE7C \ |
| B857FA3E B4B2F34F 2999EBCA 1A5FE6D7 EDFCE491 C626E279 0E05E0B8 EF27E02D \ |
| 5754E275 FB31E843 1373EF89 D827F72C 978BFB7A F5F7FC11 0866FB9C DF30FB42 \ |
| 117FFA36 3EE4FB5D BC75FCB6 66D5FF5F CF16040E 43220978 C1BC0EC8 511F12A4 \ |
| EEDF1755 82061666 7FFF1446 80001296 499C0EB2 52BA0DB9 EFB70F5C CE400FBC \ |
| E4B50CEB 63440A5A 08CA0A1F 2BBA0B0B 51460E47 8BCB113C B6F50EEA 44150A59 \ |
| """) |
| if sys.byteorder != 'big': |
| frames = wave._byteswap(frames, 2) |
| |
| |
| class WavePCM24Test(WaveTest, unittest.TestCase): |
| sndfilename = 'pluck-pcm24.wav' |
| sndfilenframes = 3307 |
| nchannels = 2 |
| sampwidth = 3 |
| framerate = 11025 |
| nframes = 48 |
| format = wave.WAVE_FORMAT_PCM |
| comptype = 'NONE' |
| compname = 'not compressed' |
| frames = bytes.fromhex("""\ |
| 022D65FFEB9D 4B5A0F00FA54 3113C304EE2B 80DCD6084303 \ |
| CBDEC006B261 48A99803F2F8 BFE82401B07D 036BFBFE7B5D \ |
| B85756FA3EC9 B4B055F3502B 299830EBCB62 1A5CA7E6D99A \ |
| EDFA3EE491BD C625EBE27884 0E05A9E0B6CF EF2929E02922 \ |
| 5758D8E27067 FB3557E83E16 1377BFEF8402 D82C5BF7272A \ |
| 978F16FB7745 F5F865FC1013 086635FB9C4E DF30FCFB40EE \ |
| 117FE0FA3438 3EE6B8FB5AC3 BC77A3FCB2F4 66D6DAFF5F32 \ |
| CF13B9041275 431D69097A8C C1BB600EC74E 5120B912A2BA \ |
| EEDF641754C0 8207001664B7 7FFFFF14453F 8000001294E6 \ |
| 499C1B0EB3B2 52B73E0DBCA0 EFB2B20F5FD8 CE3CDB0FBE12 \ |
| E4B49C0CEA2D 6344A80A5A7C 08C8FE0A1FFE 2BB9860B0A0E \ |
| 51486F0E44E1 8BCC64113B05 B6F4EC0EEB36 4413170A5B48 \ |
| """) |
| if sys.byteorder != 'big': |
| frames = wave._byteswap(frames, 3) |
| |
| |
| class WavePCM24ExtTest(WaveTest, unittest.TestCase): |
| sndfilename = 'pluck-pcm24-ext.wav' |
| sndfilenframes = 3307 |
| nchannels = 2 |
| sampwidth = 3 |
| framerate = 11025 |
| nframes = 48 |
| format = wave.WAVE_FORMAT_EXTENSIBLE |
| readonly = True # Writing EXTENSIBLE wave format is not supported. |
| comptype = 'NONE' |
| compname = 'not compressed' |
| frames = bytes.fromhex("""\ |
| 022D65FFEB9D 4B5A0F00FA54 3113C304EE2B 80DCD6084303 \ |
| CBDEC006B261 48A99803F2F8 BFE82401B07D 036BFBFE7B5D \ |
| B85756FA3EC9 B4B055F3502B 299830EBCB62 1A5CA7E6D99A \ |
| EDFA3EE491BD C625EBE27884 0E05A9E0B6CF EF2929E02922 \ |
| 5758D8E27067 FB3557E83E16 1377BFEF8402 D82C5BF7272A \ |
| 978F16FB7745 F5F865FC1013 086635FB9C4E DF30FCFB40EE \ |
| 117FE0FA3438 3EE6B8FB5AC3 BC77A3FCB2F4 66D6DAFF5F32 \ |
| CF13B9041275 431D69097A8C C1BB600EC74E 5120B912A2BA \ |
| EEDF641754C0 8207001664B7 7FFFFF14453F 8000001294E6 \ |
| 499C1B0EB3B2 52B73E0DBCA0 EFB2B20F5FD8 CE3CDB0FBE12 \ |
| E4B49C0CEA2D 6344A80A5A7C 08C8FE0A1FFE 2BB9860B0A0E \ |
| 51486F0E44E1 8BCC64113B05 B6F4EC0EEB36 4413170A5B48 \ |
| """) |
| if sys.byteorder != 'big': |
| frames = wave._byteswap(frames, 3) |
| |
| |
| class WavePCM32Test(WaveTest, unittest.TestCase): |
| sndfilename = 'pluck-pcm32.wav' |
| sndfilenframes = 3307 |
| nchannels = 2 |
| sampwidth = 4 |
| framerate = 11025 |
| nframes = 48 |
| format = wave.WAVE_FORMAT_PCM |
| comptype = 'NONE' |
| compname = 'not compressed' |
| frames = bytes.fromhex("""\ |
| 022D65BCFFEB9D92 4B5A0F8000FA549C 3113C34004EE2BC0 80DCD680084303E0 \ |
| CBDEC0C006B26140 48A9980003F2F8FC BFE8248001B07D92 036BFB60FE7B5D34 \ |
| B8575600FA3EC920 B4B05500F3502BC0 29983000EBCB6240 1A5CA7A0E6D99A60 \ |
| EDFA3E80E491BD40 C625EB80E27884A0 0E05A9A0E0B6CFE0 EF292940E0292280 \ |
| 5758D800E2706700 FB3557D8E83E1640 1377BF00EF840280 D82C5B80F7272A80 \ |
| 978F1600FB774560 F5F86510FC101364 086635A0FB9C4E20 DF30FC40FB40EE28 \ |
| 117FE0A0FA3438B0 3EE6B840FB5AC3F0 BC77A380FCB2F454 66D6DA80FF5F32B4 \ |
| CF13B980041275B0 431D6980097A8C00 C1BB60000EC74E00 5120B98012A2BAA0 \ |
| EEDF64C01754C060 820700001664B780 7FFFFFFF14453F40 800000001294E6E0 \ |
| 499C1B000EB3B270 52B73E000DBCA020 EFB2B2E00F5FD880 CE3CDB400FBE1270 \ |
| E4B49CC00CEA2D90 6344A8800A5A7CA0 08C8FE800A1FFEE0 2BB986C00B0A0E00 \ |
| 51486F800E44E190 8BCC6480113B0580 B6F4EC000EEB3630 441317800A5B48A0 \ |
| """) |
| if sys.byteorder != 'big': |
| frames = wave._byteswap(frames, 4) |
| |
| |
| class WaveIeeeFloatingPointTest(WaveTest, unittest.TestCase): |
| sndfilename = 'pluck-float32.wav' |
| sndfilenframes = 3307 |
| nchannels = 2 |
| sampwidth = 4 |
| framerate = 11025 |
| nframes = 48 |
| format = wave.WAVE_FORMAT_IEEE_FLOAT |
| comptype = 'NONE' |
| compname = 'not compressed' |
| frames = bytes.fromhex("""\ |
| 3C8B5960BA231400 3F16B41F3BFA5480 3EC44F0E3D1DC580 BF7E46533D843040 \ |
| BED084FC3D564C30 3F1153303CFCBE40 BF002FB73C583EC0 3CDAFEE0BC425180 \ |
| BF0F5154BD3826E0 BF169F56BDCAFD40 3EA660C0BE21A4EC 3E52E53CBE49332C \ |
| BE102E0CBE5B7214 BEE76852BE6C3BDC 3DE05A98BE7A4980 BE06B6B4BE7EB6EC \ |
| 3F2EB1B0BE6C7CC8 BD195500BE3E0F4C 3E1BBDF8BE03DFEC BE9F4E92BD8D8D58 \ |
| BF50E1D4BD111750 BDA079B0BCFBFB20 3D866358BD0C7640 BE833C0EBD17E240 \ |
| 3E0BFF04BD3978F0 3EFB9AE2BD14A780 BF0710B9BCD342E0 3F4DADB5BBA0CD80 \ |
| BEC3B11A3D024EB0 3F063AD33D97A8C0 BEF912803DEC74E0 3F2241733E1515D4 \ |
| BE0904D83E3AA604 BF7BF2003E3325BC 3F8000003E2229FC BF8000003E14A738 \ |
| 3F1338363DEB3B28 3F256E7C3DDBCA00 BE026A683DF5FD88 BEC70C923DFBE128 \ |
| BE5A5B183DCEA2D8 3F4689513DA5A7C8 3D8C8FE83DA1FFF0 3EAEE61C3DB0A0E0 \ |
| 3F2290DF3DE44E18 BF6867373E09D82C BF1216283DEEB360 3F08262F3DA5B488 \ |
| """) |
| if sys.byteorder != 'big': |
| frames = wave._byteswap(frames, 4) |
| |
| class MiscTestCase(unittest.TestCase): |
| def test__all__(self): |
| not_exported = {'KSDATAFORMAT_SUBTYPE_PCM'} |
| support.check__all__(self, wave, not_exported=not_exported) |
| |
| |
| class WaveLowLevelTest(unittest.TestCase): |
| |
| def test_setparams_6_tuple_defaults_to_pcm(self): |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| filename = fp.name |
| self.addCleanup(unlink, filename) |
| |
| with wave.open(filename, 'wb') as w: |
| w.setformat(wave.WAVE_FORMAT_IEEE_FLOAT) |
| w.setparams((1, 2, 22050, 0, 'NONE', 'not compressed')) |
| self.assertEqual(w.getformat(), wave.WAVE_FORMAT_PCM) |
| |
| def test_setparams_7_tuple_uses_format(self): |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| filename = fp.name |
| self.addCleanup(unlink, filename) |
| |
| with wave.open(filename, 'wb') as w: |
| w.setparams((1, 4, 22050, 0, 'NONE', 'not compressed', |
| wave.WAVE_FORMAT_IEEE_FLOAT)) |
| self.assertEqual(w.getformat(), wave.WAVE_FORMAT_IEEE_FLOAT) |
| |
| def test_setparams_7_tuple_ieee_64bit_sampwidth(self): |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| filename = fp.name |
| self.addCleanup(unlink, filename) |
| |
| with wave.open(filename, 'wb') as w: |
| w.setparams((1, 8, 22050, 0, 'NONE', 'not compressed', |
| wave.WAVE_FORMAT_IEEE_FLOAT)) |
| self.assertEqual(w.getformat(), wave.WAVE_FORMAT_IEEE_FLOAT) |
| self.assertEqual(w.getsampwidth(), 8) |
| |
| def test_getparams_backward_compatible_shape(self): |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| filename = fp.name |
| self.addCleanup(unlink, filename) |
| |
| with wave.open(filename, 'wb') as w: |
| w.setparams((1, 4, 22050, 0, 'NONE', 'not compressed', |
| wave.WAVE_FORMAT_IEEE_FLOAT)) |
| params = w.getparams() |
| self.assertEqual(params, (1, 4, 22050, 0, 'NONE', 'not compressed')) |
| |
| def test_getformat_setformat(self): |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| filename = fp.name |
| self.addCleanup(unlink, filename) |
| |
| with wave.open(filename, 'wb') as w: |
| w.setnchannels(1) |
| w.setsampwidth(4) |
| w.setframerate(22050) |
| self.assertEqual(w.getformat(), wave.WAVE_FORMAT_PCM) |
| w.setformat(wave.WAVE_FORMAT_IEEE_FLOAT) |
| self.assertEqual(w.getformat(), wave.WAVE_FORMAT_IEEE_FLOAT) |
| |
| def test_setformat_ieee_requires_32_or_64_bit_sampwidth(self): |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| filename = fp.name |
| self.addCleanup(unlink, filename) |
| |
| with wave.open(filename, 'wb') as w: |
| w.setnchannels(1) |
| w.setsampwidth(2) |
| w.setframerate(22050) |
| with self.assertRaisesRegex(wave.Error, |
| 'unsupported sample width for IEEE float format'): |
| w.setformat(wave.WAVE_FORMAT_IEEE_FLOAT) |
| |
| def test_setsampwidth_ieee_requires_32_or_64_bit(self): |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| filename = fp.name |
| self.addCleanup(unlink, filename) |
| |
| with wave.open(filename, 'wb') as w: |
| w.setnchannels(1) |
| w.setframerate(22050) |
| w.setformat(wave.WAVE_FORMAT_IEEE_FLOAT) |
| with self.assertRaisesRegex(wave.Error, |
| 'unsupported sample width for IEEE float format'): |
| w.setsampwidth(2) |
| w.setsampwidth(4) |
| |
| def test_setsampwidth_ieee_accepts_64_bit(self): |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| filename = fp.name |
| self.addCleanup(unlink, filename) |
| |
| with wave.open(filename, 'wb') as w: |
| w.setnchannels(1) |
| w.setframerate(22050) |
| w.setformat(wave.WAVE_FORMAT_IEEE_FLOAT) |
| w.setsampwidth(8) |
| self.assertEqual(w.getsampwidth(), 8) |
| |
| def test_read_getformat(self): |
| b = b'RIFF' + struct.pack('<L', 36) + b'WAVE' |
| b += b'fmt ' + struct.pack('<LHHLLHH', 16, 1, 1, 11025, 11025, 1, 8) |
| b += b'data' + struct.pack('<L', 0) |
| with wave.open(io.BytesIO(b), 'rb') as r: |
| self.assertEqual(r.getformat(), wave.WAVE_FORMAT_PCM) |
| |
| def test_read_no_chunks(self): |
| b = b'SPAM' |
| with self.assertRaises(EOFError): |
| wave.open(io.BytesIO(b)) |
| |
| def test_read_no_riff_chunk(self): |
| b = b'SPAM' + struct.pack('<L', 0) |
| with self.assertRaisesRegex(wave.Error, |
| 'file does not start with RIFF id'): |
| wave.open(io.BytesIO(b)) |
| |
| def test_read_not_wave(self): |
| b = b'RIFF' + struct.pack('<L', 4) + b'SPAM' |
| with self.assertRaisesRegex(wave.Error, |
| 'not a WAVE file'): |
| wave.open(io.BytesIO(b)) |
| |
| def test_read_no_fmt_no_data_chunk(self): |
| b = b'RIFF' + struct.pack('<L', 4) + b'WAVE' |
| with self.assertRaisesRegex(wave.Error, |
| 'fmt chunk and/or data chunk missing'): |
| wave.open(io.BytesIO(b)) |
| |
| def test_read_no_data_chunk(self): |
| b = b'RIFF' + struct.pack('<L', 28) + b'WAVE' |
| b += b'fmt ' + struct.pack('<LHHLLHH', 16, 1, 1, 11025, 11025, 1, 8) |
| with self.assertRaisesRegex(wave.Error, |
| 'fmt chunk and/or data chunk missing'): |
| wave.open(io.BytesIO(b)) |
| |
| def test_read_no_fmt_chunk(self): |
| b = b'RIFF' + struct.pack('<L', 12) + b'WAVE' |
| b += b'data' + struct.pack('<L', 0) |
| with self.assertRaisesRegex(wave.Error, 'data chunk before fmt chunk'): |
| wave.open(io.BytesIO(b)) |
| |
| def test_read_wrong_form(self): |
| b = b'RIFF' + struct.pack('<L', 36) + b'WAVE' |
| b += b'fmt ' + struct.pack('<LHHLLHH', 16, 2, 1, 11025, 11025, 1, 1) |
| b += b'data' + struct.pack('<L', 0) |
| with self.assertRaisesRegex(wave.Error, 'unknown format: 2'): |
| wave.open(io.BytesIO(b)) |
| |
| def test_read_wrong_number_of_channels(self): |
| b = b'RIFF' + struct.pack('<L', 36) + b'WAVE' |
| b += b'fmt ' + struct.pack('<LHHLLHH', 16, 1, 0, 11025, 11025, 1, 8) |
| b += b'data' + struct.pack('<L', 0) |
| with self.assertRaisesRegex(wave.Error, 'bad # of channels'): |
| wave.open(io.BytesIO(b)) |
| |
| def test_read_wrong_sample_width(self): |
| b = b'RIFF' + struct.pack('<L', 36) + b'WAVE' |
| b += b'fmt ' + struct.pack('<LHHLLHH', 16, 1, 1, 11025, 11025, 1, 0) |
| b += b'data' + struct.pack('<L', 0) |
| with self.assertRaisesRegex(wave.Error, 'bad sample width'): |
| wave.open(io.BytesIO(b)) |
| |
| def test_open_in_write_raises(self): |
| # gh-136523: Wave_write.__del__ should not throw |
| with support.catch_unraisable_exception() as cm: |
| with self.assertRaises(OSError): |
| wave.open(os.curdir, "wb") |
| support.gc_collect() |
| self.assertIsNone(cm.unraisable) |
| |
| def test_ieee_float_has_fact_chunk(self): |
| nframes = 100 |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| filename = fp.name |
| self.addCleanup(unlink, filename) |
| |
| with wave.open(filename, 'wb') as w: |
| w.setnchannels(1) |
| w.setsampwidth(4) |
| w.setframerate(22050) |
| w.setformat(wave.WAVE_FORMAT_IEEE_FLOAT) |
| w.writeframes(b'\x00\x00\x00\x00' * nframes) |
| |
| with open(filename, 'rb') as f: |
| f.read(12) |
| fact_found = False |
| fact_samples = None |
| while True: |
| chunk_id = f.read(4) |
| if len(chunk_id) < 4: |
| break |
| chunk_size = struct.unpack('<L', f.read(4))[0] |
| if chunk_id == b'fact': |
| fact_found = True |
| fact_samples = struct.unpack('<L', f.read(4))[0] |
| break |
| f.seek(chunk_size + (chunk_size & 1), 1) |
| |
| self.assertTrue(fact_found) |
| self.assertEqual(fact_samples, nframes) |
| |
| def test_pcm_has_no_fact_chunk(self): |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| filename = fp.name |
| self.addCleanup(unlink, filename) |
| |
| with wave.open(filename, 'wb') as w: |
| w.setnchannels(1) |
| w.setsampwidth(2) |
| w.setframerate(22050) |
| w.writeframes(b'\x00\x00' * 100) |
| |
| with open(filename, 'rb') as f: |
| f.read(12) |
| while True: |
| chunk_id = f.read(4) |
| if len(chunk_id) < 4: |
| break |
| chunk_size = struct.unpack('<L', f.read(4))[0] |
| self.assertNotEqual(chunk_id, b'fact') |
| f.seek(chunk_size + (chunk_size & 1), 1) |
| |
| @support.subTests('arg', ( |
| # rounds to 0, should raise: |
| 0.5, |
| 0.4, |
| # Negative values should still raise: |
| -1, |
| -0.5, |
| -0.4, |
| # 0 should raise: |
| 0, |
| )) |
| def test_setframerate_validates_rounded_values(self, arg): |
| """Test that setframerate that round to 0 or negative are rejected""" |
| with wave.open(io.BytesIO(), 'wb') as f: |
| f.setnchannels(1) |
| f.setsampwidth(2) |
| with self.assertRaises(wave.Error): |
| f.setframerate(arg) |
| with self.assertRaises(wave.Error): |
| f.close() |
| |
| @support.subTests(('arg', 'expected'), ( |
| (1.4, 1), |
| (1.5, 2), |
| (1.6, 2), |
| (44100.4, 44100), |
| (44100.5, 44100), |
| (44100.6, 44101), |
| )) |
| def test_setframerate_rounds(self, arg, expected): |
| """Test that setframerate is rounded""" |
| with wave.open(io.BytesIO(), 'wb') as f: |
| f.setnchannels(1) |
| f.setsampwidth(2) |
| f.setframerate(arg) |
| self.assertEqual(f.getframerate(), expected) |
| |
| |
| class WaveOpen(unittest.TestCase): |
| def test_open_pathlike(self): |
| """It is possible to use `wave.read` and `wave.write` with a path-like object""" |
| with tempfile.NamedTemporaryFile(delete_on_close=False) as fp: |
| cases = ( |
| FakePath(fp.name), |
| FakePath(os.fsencode(fp.name)), |
| os.fsencode(fp.name), |
| ) |
| for fake_path in cases: |
| with self.subTest(fake_path): |
| with wave.open(fake_path, 'wb') as f: |
| f.setnchannels(1) |
| f.setsampwidth(2) |
| f.setframerate(44100) |
| |
| with wave.open(fake_path, 'rb') as f: |
| pass |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |
