190 lines
6.6 KiB
Python
190 lines
6.6 KiB
Python
from test.support import findfile, run_unittest, TESTFN
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import unittest
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import os
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import io
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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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try:
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os.remove(TESTFN)
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except OSError:
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pass
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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.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.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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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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# XXX: this test fails, not sure if it should succeed or not
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# self.assertEqual(f.readframes(5), fout.readframes(5))
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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 = self.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 = self.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_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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