| import audioop | |
| import unittest | |
| from test.test_support import run_unittest | |
| def gendata1(): | |
| return '\0\1\2' | |
| def gendata2(): | |
| if audioop.getsample('\0\1', 2, 0) == 1: | |
| return '\0\0\0\1\0\2' | |
| else: | |
| return '\0\0\1\0\2\0' | |
| def gendata4(): | |
| if audioop.getsample('\0\0\0\1', 4, 0) == 1: | |
| return '\0\0\0\0\0\0\0\1\0\0\0\2' | |
| else: | |
| return '\0\0\0\0\1\0\0\0\2\0\0\0' | |
| data = [gendata1(), gendata2(), gendata4()] | |
| INVALID_DATA = [ | |
| ('abc', 0), | |
| ('abc', 2), | |
| ('abc', 4), | |
| ] | |
| class TestAudioop(unittest.TestCase): | |
| def test_max(self): | |
| self.assertEqual(audioop.max(data[0], 1), 2) | |
| self.assertEqual(audioop.max(data[1], 2), 2) | |
| self.assertEqual(audioop.max(data[2], 4), 2) | |
| def test_minmax(self): | |
| self.assertEqual(audioop.minmax(data[0], 1), (0, 2)) | |
| self.assertEqual(audioop.minmax(data[1], 2), (0, 2)) | |
| self.assertEqual(audioop.minmax(data[2], 4), (0, 2)) | |
| def test_maxpp(self): | |
| self.assertEqual(audioop.maxpp(data[0], 1), 0) | |
| self.assertEqual(audioop.maxpp(data[1], 2), 0) | |
| self.assertEqual(audioop.maxpp(data[2], 4), 0) | |
| def test_avg(self): | |
| self.assertEqual(audioop.avg(data[0], 1), 1) | |
| self.assertEqual(audioop.avg(data[1], 2), 1) | |
| self.assertEqual(audioop.avg(data[2], 4), 1) | |
| def test_avgpp(self): | |
| self.assertEqual(audioop.avgpp(data[0], 1), 0) | |
| self.assertEqual(audioop.avgpp(data[1], 2), 0) | |
| self.assertEqual(audioop.avgpp(data[2], 4), 0) | |
| def test_rms(self): | |
| self.assertEqual(audioop.rms(data[0], 1), 1) | |
| self.assertEqual(audioop.rms(data[1], 2), 1) | |
| self.assertEqual(audioop.rms(data[2], 4), 1) | |
| def test_cross(self): | |
| self.assertEqual(audioop.cross(data[0], 1), 0) | |
| self.assertEqual(audioop.cross(data[1], 2), 0) | |
| self.assertEqual(audioop.cross(data[2], 4), 0) | |
| def test_add(self): | |
| data2 = [] | |
| for d in data: | |
| str = '' | |
| for s in d: | |
| str = str + chr(ord(s)*2) | |
| data2.append(str) | |
| self.assertEqual(audioop.add(data[0], data[0], 1), data2[0]) | |
| self.assertEqual(audioop.add(data[1], data[1], 2), data2[1]) | |
| self.assertEqual(audioop.add(data[2], data[2], 4), data2[2]) | |
| def test_bias(self): | |
| # Note: this test assumes that avg() works | |
| d1 = audioop.bias(data[0], 1, 100) | |
| d2 = audioop.bias(data[1], 2, 100) | |
| d4 = audioop.bias(data[2], 4, 100) | |
| self.assertEqual(audioop.avg(d1, 1), 101) | |
| self.assertEqual(audioop.avg(d2, 2), 101) | |
| self.assertEqual(audioop.avg(d4, 4), 101) | |
| def test_lin2lin(self): | |
| # too simple: we test only the size | |
| for d1 in data: | |
| for d2 in data: | |
| got = len(d1)//3 | |
| wtd = len(d2)//3 | |
| self.assertEqual(len(audioop.lin2lin(d1, got, wtd)), len(d2)) | |
| def test_adpcm2lin(self): | |
| # Very cursory test | |
| self.assertEqual(audioop.adpcm2lin('\0\0', 1, None), ('\0\0\0\0', (0,0))) | |
| def test_lin2adpcm(self): | |
| # Very cursory test | |
| self.assertEqual(audioop.lin2adpcm('\0\0\0\0', 1, None), ('\0\0', (0,0))) | |
| def test_lin2alaw(self): | |
| self.assertEqual(audioop.lin2alaw(data[0], 1), '\xd5\xc5\xf5') | |
| self.assertEqual(audioop.lin2alaw(data[1], 2), '\xd5\xd5\xd5') | |
| self.assertEqual(audioop.lin2alaw(data[2], 4), '\xd5\xd5\xd5') | |
| def test_alaw2lin(self): | |
| # Cursory | |
| d = audioop.lin2alaw(data[0], 1) | |
| self.assertEqual(audioop.alaw2lin(d, 1), data[0]) | |
| def test_lin2ulaw(self): | |
| self.assertEqual(audioop.lin2ulaw(data[0], 1), '\xff\xe7\xdb') | |
| self.assertEqual(audioop.lin2ulaw(data[1], 2), '\xff\xff\xff') | |
| self.assertEqual(audioop.lin2ulaw(data[2], 4), '\xff\xff\xff') | |
| def test_ulaw2lin(self): | |
| # Cursory | |
| d = audioop.lin2ulaw(data[0], 1) | |
| self.assertEqual(audioop.ulaw2lin(d, 1), data[0]) | |
| def test_mul(self): | |
| data2 = [] | |
| for d in data: | |
| str = '' | |
| for s in d: | |
| str = str + chr(ord(s)*2) | |
| data2.append(str) | |
| self.assertEqual(audioop.mul(data[0], 1, 2), data2[0]) | |
| self.assertEqual(audioop.mul(data[1],2, 2), data2[1]) | |
| self.assertEqual(audioop.mul(data[2], 4, 2), data2[2]) | |
| def test_ratecv(self): | |
| state = None | |
| d1, state = audioop.ratecv(data[0], 1, 1, 8000, 16000, state) | |
| d2, state = audioop.ratecv(data[0], 1, 1, 8000, 16000, state) | |
| self.assertEqual(d1 + d2, '\000\000\001\001\002\001\000\000\001\001\002') | |
| def test_reverse(self): | |
| self.assertEqual(audioop.reverse(data[0], 1), '\2\1\0') | |
| def test_tomono(self): | |
| data2 = '' | |
| for d in data[0]: | |
| data2 = data2 + d + d | |
| self.assertEqual(audioop.tomono(data2, 1, 0.5, 0.5), data[0]) | |
| def test_tostereo(self): | |
| data2 = '' | |
| for d in data[0]: | |
| data2 = data2 + d + d | |
| self.assertEqual(audioop.tostereo(data[0], 1, 1, 1), data2) | |
| def test_findfactor(self): | |
| self.assertEqual(audioop.findfactor(data[1], data[1]), 1.0) | |
| def test_findfit(self): | |
| self.assertEqual(audioop.findfit(data[1], data[1]), (0, 1.0)) | |
| def test_findmax(self): | |
| self.assertEqual(audioop.findmax(data[1], 1), 2) | |
| def test_getsample(self): | |
| for i in range(3): | |
| self.assertEqual(audioop.getsample(data[0], 1, i), i) | |
| self.assertEqual(audioop.getsample(data[1], 2, i), i) | |
| self.assertEqual(audioop.getsample(data[2], 4, i), i) | |
| def test_negativelen(self): | |
| # from issue 3306, previously it segfaulted | |
| self.assertRaises(audioop.error, | |
| audioop.findmax, ''.join( chr(x) for x in xrange(256)), -2392392) | |
| def test_issue7673(self): | |
| state = None | |
| for data, size in INVALID_DATA: | |
| size2 = size | |
| self.assertRaises(audioop.error, audioop.getsample, data, size, 0) | |
| self.assertRaises(audioop.error, audioop.max, data, size) | |
| self.assertRaises(audioop.error, audioop.minmax, data, size) | |
| self.assertRaises(audioop.error, audioop.avg, data, size) | |
| self.assertRaises(audioop.error, audioop.rms, data, size) | |
| self.assertRaises(audioop.error, audioop.avgpp, data, size) | |
| self.assertRaises(audioop.error, audioop.maxpp, data, size) | |
| self.assertRaises(audioop.error, audioop.cross, data, size) | |
| self.assertRaises(audioop.error, audioop.mul, data, size, 1.0) | |
| self.assertRaises(audioop.error, audioop.tomono, data, size, 0.5, 0.5) | |
| self.assertRaises(audioop.error, audioop.tostereo, data, size, 0.5, 0.5) | |
| self.assertRaises(audioop.error, audioop.add, data, data, size) | |
| self.assertRaises(audioop.error, audioop.bias, data, size, 0) | |
| self.assertRaises(audioop.error, audioop.reverse, data, size) | |
| self.assertRaises(audioop.error, audioop.lin2lin, data, size, size2) | |
| self.assertRaises(audioop.error, audioop.ratecv, data, size, 1, 1, 1, state) | |
| self.assertRaises(audioop.error, audioop.lin2ulaw, data, size) | |
| self.assertRaises(audioop.error, audioop.ulaw2lin, data, size) | |
| self.assertRaises(audioop.error, audioop.lin2alaw, data, size) | |
| self.assertRaises(audioop.error, audioop.alaw2lin, data, size) | |
| self.assertRaises(audioop.error, audioop.lin2adpcm, data, size, state) | |
| self.assertRaises(audioop.error, audioop.adpcm2lin, data, size, state) | |
| def test_main(): | |
| run_unittest(TestAudioop) | |
| if __name__ == '__main__': | |
| test_main() |