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334 lines
13 KiB
Python
334 lines
13 KiB
Python
from test.support import findfile, run_unittest, TESTFN, captured_stdout, unlink
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import unittest
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import os
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import io
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import struct
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import aifc
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class AIFCTest(unittest.TestCase):
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def setUp(self):
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self.f = self.fout = None
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self.sndfilepath = findfile('Sine-1000Hz-300ms.aif')
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def tearDown(self):
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if self.f is not None:
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self.f.close()
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if self.fout is not None:
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try:
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self.fout.close()
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except (aifc.Error, AttributeError):
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pass
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unlink(TESTFN)
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unlink(TESTFN + '.aiff')
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def test_skipunknown(self):
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#Issue 2245
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#This file contains chunk types aifc doesn't recognize.
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self.f = aifc.open(self.sndfilepath)
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def test_params(self):
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f = self.f = aifc.open(self.sndfilepath)
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self.assertEqual(f.getfp().name, self.sndfilepath)
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self.assertEqual(f.getnchannels(), 2)
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self.assertEqual(f.getsampwidth(), 2)
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self.assertEqual(f.getframerate(), 48000)
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self.assertEqual(f.getnframes(), 14400)
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self.assertEqual(f.getcomptype(), b'NONE')
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self.assertEqual(f.getcompname(), b'not compressed')
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self.assertEqual(
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f.getparams(),
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(2, 2, 48000, 14400, b'NONE', b'not compressed'),
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)
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def test_read(self):
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f = self.f = aifc.open(self.sndfilepath)
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self.assertEqual(f.readframes(0), b'')
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self.assertEqual(f.tell(), 0)
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self.assertEqual(f.readframes(2), b'\x00\x00\x00\x00\x0b\xd4\x0b\xd4')
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f.rewind()
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pos0 = f.tell()
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self.assertEqual(pos0, 0)
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self.assertEqual(f.readframes(2), b'\x00\x00\x00\x00\x0b\xd4\x0b\xd4')
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pos2 = f.tell()
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self.assertEqual(pos2, 2)
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self.assertEqual(f.readframes(2), b'\x17t\x17t"\xad"\xad')
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f.setpos(pos2)
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self.assertEqual(f.readframes(2), b'\x17t\x17t"\xad"\xad')
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f.setpos(pos0)
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self.assertEqual(f.readframes(2), b'\x00\x00\x00\x00\x0b\xd4\x0b\xd4')
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with self.assertRaises(aifc.Error):
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f.setpos(-1)
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with self.assertRaises(aifc.Error):
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f.setpos(f.getnframes() + 1)
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def test_write(self):
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f = self.f = aifc.open(self.sndfilepath)
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fout = self.fout = aifc.open(TESTFN, 'wb')
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fout.aifc()
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fout.setparams(f.getparams())
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for frame in range(f.getnframes()):
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fout.writeframes(f.readframes(1))
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fout.close()
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fout = self.fout = aifc.open(TESTFN, 'rb')
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f.rewind()
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self.assertEqual(f.getparams(), fout.getparams())
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self.assertEqual(f.readframes(5), fout.readframes(5))
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def test_compress(self):
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f = self.f = aifc.open(self.sndfilepath)
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fout = self.fout = aifc.open(TESTFN, 'wb')
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fout.aifc()
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fout.setnchannels(f.getnchannels())
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fout.setsampwidth(f.getsampwidth())
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fout.setframerate(f.getframerate())
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fout.setcomptype(b'ULAW', b'foo')
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for frame in range(f.getnframes()):
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fout.writeframes(f.readframes(1))
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fout.close()
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self.assertLess(
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os.stat(TESTFN).st_size,
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os.stat(self.sndfilepath).st_size*0.75,
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)
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fout = self.fout = aifc.open(TESTFN, 'rb')
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f.rewind()
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self.assertEqual(f.getparams()[0:3], fout.getparams()[0:3])
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self.assertEqual(fout.getcomptype(), b'ULAW')
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self.assertEqual(fout.getcompname(), b'foo')
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def test_close(self):
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class Wrapfile(object):
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def __init__(self, file):
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self.file = open(file, 'rb')
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self.closed = False
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def close(self):
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self.file.close()
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self.closed = True
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def __getattr__(self, attr): return getattr(self.file, attr)
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testfile = Wrapfile(self.sndfilepath)
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f = self.f = aifc.open(testfile)
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self.assertEqual(testfile.closed, False)
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f.close()
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self.assertEqual(testfile.closed, True)
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def test_write_header_comptype_sampwidth(self):
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for comptype in (b'ULAW', b'ulaw', b'ALAW', b'alaw', b'G722'):
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fout = aifc.open(io.BytesIO(), 'wb')
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fout.setnchannels(1)
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fout.setframerate(1)
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fout.setcomptype(comptype, b'')
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fout.close()
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self.assertEqual(fout.getsampwidth(), 2)
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fout.initfp(None)
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def test_write_markers_values(self):
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fout = aifc.open(io.BytesIO(), 'wb')
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self.assertEqual(fout.getmarkers(), None)
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fout.setmark(1, 0, b'foo1')
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fout.setmark(1, 1, b'foo2')
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self.assertEqual(fout.getmark(1), (1, 1, b'foo2'))
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self.assertEqual(fout.getmarkers(), [(1, 1, b'foo2')])
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fout.initfp(None)
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def test_read_markers(self):
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fout = self.fout = aifc.open(TESTFN, 'wb')
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fout.aiff()
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fout.setparams((1, 1, 1, 1, b'NONE', b''))
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fout.setmark(1, 0, b'odd')
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fout.setmark(2, 0, b'even')
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fout.writeframes(b'\x00')
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fout.close()
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f = self.f = aifc.open(TESTFN, 'rb')
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self.assertEqual(f.getmarkers(), [(1, 0, b'odd'), (2, 0, b'even')])
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self.assertEqual(f.getmark(1), (1, 0, b'odd'))
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self.assertEqual(f.getmark(2), (2, 0, b'even'))
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self.assertRaises(aifc.Error, f.getmark, 3)
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class AIFCLowLevelTest(unittest.TestCase):
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def test_read_written(self):
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def read_written(self, what):
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f = io.BytesIO()
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getattr(aifc, '_write_' + what)(f, x)
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f.seek(0)
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return getattr(aifc, '_read_' + what)(f)
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for x in (-1, 0, 0.1, 1):
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self.assertEqual(read_written(x, 'float'), x)
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for x in (float('NaN'), float('Inf')):
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self.assertEqual(read_written(x, 'float'), aifc._HUGE_VAL)
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for x in (b'', b'foo', b'a' * 255):
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self.assertEqual(read_written(x, 'string'), x)
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for x in (-0x7FFFFFFF, -1, 0, 1, 0x7FFFFFFF):
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self.assertEqual(read_written(x, 'long'), x)
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for x in (0, 1, 0xFFFFFFFF):
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self.assertEqual(read_written(x, 'ulong'), x)
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for x in (-0x7FFF, -1, 0, 1, 0x7FFF):
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self.assertEqual(read_written(x, 'short'), x)
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for x in (0, 1, 0xFFFF):
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self.assertEqual(read_written(x, 'ushort'), x)
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def test_read_raises(self):
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f = io.BytesIO(b'\x00')
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self.assertRaises(EOFError, aifc._read_ulong, f)
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self.assertRaises(EOFError, aifc._read_long, f)
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self.assertRaises(EOFError, aifc._read_ushort, f)
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self.assertRaises(EOFError, aifc._read_short, f)
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def test_write_long_string_raises(self):
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f = io.BytesIO()
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with self.assertRaises(ValueError):
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aifc._write_string(f, b'too long' * 255)
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def test_wrong_open_mode(self):
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with self.assertRaises(aifc.Error):
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aifc.open(TESTFN, 'wrong_mode')
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def test_read_wrong_form(self):
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b1 = io.BytesIO(b'WRNG' + struct.pack('>L', 0))
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b2 = io.BytesIO(b'FORM' + struct.pack('>L', 4) + b'WRNG')
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self.assertRaises(aifc.Error, aifc.open, b1)
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self.assertRaises(aifc.Error, aifc.open, b2)
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def test_read_no_comm_chunk(self):
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b = io.BytesIO(b'FORM' + struct.pack('>L', 4) + b'AIFF')
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self.assertRaises(aifc.Error, aifc.open, b)
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def test_read_wrong_compression_type(self):
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b = b'FORM' + struct.pack('>L', 4) + b'AIFC'
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b += b'COMM' + struct.pack('>LhlhhLL', 23, 0, 0, 0, 0, 0, 0)
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b += b'WRNG' + struct.pack('B', 0)
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self.assertRaises(aifc.Error, aifc.open, io.BytesIO(b))
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def test_read_wrong_marks(self):
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b = b'FORM' + struct.pack('>L', 4) + b'AIFF'
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b += b'COMM' + struct.pack('>LhlhhLL', 18, 0, 0, 0, 0, 0, 0)
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b += b'SSND' + struct.pack('>L', 8) + b'\x00' * 8
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b += b'MARK' + struct.pack('>LhB', 3, 1, 1)
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with captured_stdout() as s:
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f = aifc.open(io.BytesIO(b))
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self.assertEqual(
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s.getvalue(),
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'Warning: MARK chunk contains only 0 markers instead of 1\n')
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self.assertEqual(f.getmarkers(), None)
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def test_read_comm_kludge_compname_even(self):
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b = b'FORM' + struct.pack('>L', 4) + b'AIFC'
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b += b'COMM' + struct.pack('>LhlhhLL', 18, 0, 0, 0, 0, 0, 0)
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b += b'NONE' + struct.pack('B', 4) + b'even' + b'\x00'
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b += b'SSND' + struct.pack('>L', 8) + b'\x00' * 8
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with captured_stdout() as s:
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f = aifc.open(io.BytesIO(b))
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self.assertEqual(s.getvalue(), 'Warning: bad COMM chunk size\n')
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self.assertEqual(f.getcompname(), b'even')
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def test_read_comm_kludge_compname_odd(self):
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b = b'FORM' + struct.pack('>L', 4) + b'AIFC'
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b += b'COMM' + struct.pack('>LhlhhLL', 18, 0, 0, 0, 0, 0, 0)
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b += b'NONE' + struct.pack('B', 3) + b'odd'
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b += b'SSND' + struct.pack('>L', 8) + b'\x00' * 8
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with captured_stdout() as s:
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f = aifc.open(io.BytesIO(b))
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self.assertEqual(s.getvalue(), 'Warning: bad COMM chunk size\n')
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self.assertEqual(f.getcompname(), b'odd')
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def test_write_params_raises(self):
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fout = aifc.open(io.BytesIO(), 'wb')
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wrong_params = (0, 0, 0, 0, b'WRNG', '')
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self.assertRaises(aifc.Error, fout.setparams, wrong_params)
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self.assertRaises(aifc.Error, fout.getparams)
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self.assertRaises(aifc.Error, fout.setnchannels, 0)
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self.assertRaises(aifc.Error, fout.getnchannels)
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self.assertRaises(aifc.Error, fout.setsampwidth, 0)
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self.assertRaises(aifc.Error, fout.getsampwidth)
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self.assertRaises(aifc.Error, fout.setframerate, 0)
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self.assertRaises(aifc.Error, fout.getframerate)
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self.assertRaises(aifc.Error, fout.setcomptype, b'WRNG', '')
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fout.aiff()
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fout.setnchannels(1)
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fout.setsampwidth(1)
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fout.setframerate(1)
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fout.setnframes(1)
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fout.writeframes(b'\x00')
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self.assertRaises(aifc.Error, fout.setparams, (1, 1, 1, 1, 1, 1))
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self.assertRaises(aifc.Error, fout.setnchannels, 1)
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self.assertRaises(aifc.Error, fout.setsampwidth, 1)
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self.assertRaises(aifc.Error, fout.setframerate, 1)
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self.assertRaises(aifc.Error, fout.setnframes, 1)
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self.assertRaises(aifc.Error, fout.setcomptype, b'NONE', '')
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self.assertRaises(aifc.Error, fout.aiff)
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self.assertRaises(aifc.Error, fout.aifc)
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def test_write_params_singles(self):
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fout = aifc.open(io.BytesIO(), 'wb')
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fout.aifc()
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fout.setnchannels(1)
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fout.setsampwidth(2)
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fout.setframerate(3)
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fout.setnframes(4)
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fout.setcomptype(b'NONE', b'name')
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self.assertEqual(fout.getnchannels(), 1)
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self.assertEqual(fout.getsampwidth(), 2)
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self.assertEqual(fout.getframerate(), 3)
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self.assertEqual(fout.getnframes(), 0)
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self.assertEqual(fout.tell(), 0)
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self.assertEqual(fout.getcomptype(), b'NONE')
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self.assertEqual(fout.getcompname(), b'name')
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fout.writeframes(b'\x00' * 4 * fout.getsampwidth() * fout.getnchannels())
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self.assertEqual(fout.getnframes(), 4)
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self.assertEqual(fout.tell(), 4)
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def test_write_params_bunch(self):
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fout = aifc.open(io.BytesIO(), 'wb')
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fout.aifc()
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p = (1, 2, 3, 4, b'NONE', b'name')
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fout.setparams(p)
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self.assertEqual(fout.getparams(), p)
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fout.initfp(None)
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def test_write_header_raises(self):
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fout = aifc.open(io.BytesIO(), 'wb')
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self.assertRaises(aifc.Error, fout.close)
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fout.setnchannels(1)
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self.assertRaises(aifc.Error, fout.close)
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fout.setsampwidth(1)
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self.assertRaises(aifc.Error, fout.close)
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fout.initfp(None)
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def test_write_header_comptype_raises(self):
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for comptype in (b'ULAW', b'ulaw', b'ALAW', b'alaw', b'G722'):
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fout = aifc.open(io.BytesIO(), 'wb')
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fout.setsampwidth(1)
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fout.setcomptype(comptype, b'')
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self.assertRaises(aifc.Error, fout.close)
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fout.initfp(None)
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def test_write_markers_raises(self):
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fout = aifc.open(io.BytesIO(), 'wb')
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self.assertRaises(aifc.Error, fout.setmark, 0, 0, b'')
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self.assertRaises(aifc.Error, fout.setmark, 1, -1, b'')
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self.assertRaises(aifc.Error, fout.setmark, 1, 0, None)
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self.assertRaises(aifc.Error, fout.getmark, 1)
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fout.initfp(None)
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def test_write_aiff_by_extension(self):
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sampwidth = 2
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fout = self.fout = aifc.open(TESTFN + '.aiff', 'wb')
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fout.setparams((1, sampwidth, 1, 1, b'ULAW', b''))
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frames = b'\x00' * fout.getnchannels() * sampwidth
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fout.writeframes(frames)
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fout.close()
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f = self.f = aifc.open(TESTFN + '.aiff', 'rb')
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self.assertEqual(f.getcomptype(), b'NONE')
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f.close()
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def test_main():
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run_unittest(AIFCTest)
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run_unittest(AIFCLowLevelTest)
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if __name__ == "__main__":
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unittest.main()
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