104 lines
3.3 KiB
Python
104 lines
3.3 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 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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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_main():
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run_unittest(AIFCTest)
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if __name__ == "__main__":
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unittest.main()
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