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Commit 7416a4cd authored by Benjamin Peterson's avatar Benjamin Peterson
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convert test_audioop to unittest. Thanks to Giampaolo Rodola.

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Lib/test/test_audioop.py
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# Test audioop.
import audioop
from test.test_support import verbose
import unittest
from test.test_support import run_unittest
def gendata1():
return '\0\1\2'
def gendata2():
if verbose:
print 'getsample'
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 verbose:
print 'getsample'
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'
def testmax(data):
if verbose:
print 'max'
if audioop.max(data[0], 1) != 2 or \
audioop.max(data[1], 2) != 2 or \
audioop.max(data[2], 4) != 2:
return 0
return 1
def testminmax(data):
if verbose:
print 'minmax'
if audioop.minmax(data[0], 1) != (0, 2) or \
audioop.minmax(data[1], 2) != (0, 2) or \
audioop.minmax(data[2], 4) != (0, 2):
return 0
return 1
def testmaxpp(data):
if verbose:
print 'maxpp'
if audioop.maxpp(data[0], 1) != 0 or \
audioop.maxpp(data[1], 2) != 0 or \
audioop.maxpp(data[2], 4) != 0:
return 0
return 1
def testavg(data):
if verbose:
print 'avg'
if audioop.avg(data[0], 1) != 1 or \
audioop.avg(data[1], 2) != 1 or \
audioop.avg(data[2], 4) != 1:
return 0
return 1
def testavgpp(data):
if verbose:
print 'avgpp'
if audioop.avgpp(data[0], 1) != 0 or \
audioop.avgpp(data[1], 2) != 0 or \
audioop.avgpp(data[2], 4) != 0:
return 0
return 1
def testrms(data):
if audioop.rms(data[0], 1) != 1 or \
audioop.rms(data[1], 2) != 1 or \
audioop.rms(data[2], 4) != 1:
return 0
return 1
def testcross(data):
if verbose:
print 'cross'
if audioop.cross(data[0], 1) != 0 or \
audioop.cross(data[1], 2) != 0 or \
audioop.cross(data[2], 4) != 0:
return 0
return 1
def testadd(data):
if verbose:
print 'add'
data = [gendata1(), gendata2(), gendata4()]
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)
if audioop.add(data[0], data[0], 1) != data2[0] or \
audioop.add(data[1], data[1], 2) != data2[1] or \
audioop.add(data[2], data[2], 4) != data2[2]:
return 0
return 1
def testbias(data):
if verbose:
print 'bias'
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)
if audioop.avg(d1, 1) != 101 or \
audioop.avg(d2, 2) != 101 or \
audioop.avg(d4, 4) != 101:
return 0
return 1
def testlin2lin(data):
if verbose:
print 'lin2lin'
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
if len(audioop.lin2lin(d1, got, wtd)) != len(d2):
return 0
return 1
self.assertEqual(len(audioop.lin2lin(d1, got, wtd)), len(d2))
def testadpcm2lin(data):
def test_adpcm2lin(self):
# Very cursory test
if audioop.adpcm2lin('\0\0', 1, None) != ('\0\0\0\0', (0,0)):
return 0
return 1
self.assertEqual(audioop.adpcm2lin('\0\0', 1, None), ('\0\0\0\0', (0,0)))
def testlin2adpcm(data):
if verbose:
print 'lin2adpcm'
def test_lin2adpcm(self):
# Very cursory test
if audioop.lin2adpcm('\0\0\0\0', 1, None) != ('\0\0', (0,0)):
return 0
return 1
def testlin2alaw(data):
if verbose:
print 'lin2alaw'
if audioop.lin2alaw(data[0], 1) != '\xd5\xc5\xf5' or \
audioop.lin2alaw(data[1], 2) != '\xd5\xd5\xd5' or \
audioop.lin2alaw(data[2], 4) != '\xd5\xd5\xd5':
return 0
return 1
def testalaw2lin(data):
if verbose:
print 'alaw2lin'
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)
if audioop.alaw2lin(d, 1) != data[0]:
return 0
return 1
def testlin2ulaw(data):
if verbose:
print 'lin2ulaw'
if audioop.lin2ulaw(data[0], 1) != '\xff\xe7\xdb' or \
audioop.lin2ulaw(data[1], 2) != '\xff\xff\xff' or \
audioop.lin2ulaw(data[2], 4) != '\xff\xff\xff':
return 0
return 1
def testulaw2lin(data):
if verbose:
print 'ulaw2lin'
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)
if audioop.ulaw2lin(d, 1) != data[0]:
return 0
return 1
self.assertEqual(audioop.ulaw2lin(d, 1), data[0])
def testmul(data):
if verbose:
print 'mul'
def test_mul(self):
data2 = []
for d in data:
str = ''
for s in d:
str = str + chr(ord(s)*2)
data2.append(str)
if audioop.mul(data[0], 1, 2) != data2[0] or \
audioop.mul(data[1],2, 2) != data2[1] or \
audioop.mul(data[2], 4, 2) != data2[2]:
return 0
return 1
def testratecv(data):
if verbose:
print 'ratecv'
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)
if d1 + d2 != '\000\000\001\001\002\001\000\000\001\001\002':
return 0
return 1
def testreverse(data):
if verbose:
print 'reverse'
if audioop.reverse(data[0], 1) != '\2\1\0':
return 0
return 1
def testtomono(data):
if verbose:
print 'tomono'
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
if audioop.tomono(data2, 1, 0.5, 0.5) != data[0]:
return 0
return 1
self.assertEqual(audioop.tomono(data2, 1, 0.5, 0.5), data[0])
def testtostereo(data):
if verbose:
print 'tostereo'
def test_tostereo(self):
data2 = ''
for d in data[0]:
data2 = data2 + d + d
if audioop.tostereo(data[0], 1, 1, 1) != data2:
return 0
return 1
def testfindfactor(data):
if verbose:
print 'findfactor'
if audioop.findfactor(data[1], data[1]) != 1.0:
return 0
return 1
def testfindfit(data):
if verbose:
print 'findfit'
if audioop.findfit(data[1], data[1]) != (0, 1.0):
return 0
return 1
def testfindmax(data):
if verbose:
print 'findmax'
if audioop.findmax(data[1], 1) != 2:
return 0
return 1
def testgetsample(data):
if verbose:
print 'getsample'
for i in range(3):
if audioop.getsample(data[0], 1, i) != i or \
audioop.getsample(data[1], 2, i) != i or \
audioop.getsample(data[2], 4, i) != i:
return 0
return 1
def testone(name, data):
try:
func = eval('test'+name)
except NameError:
print 'No test found for audioop.'+name+'()'
return
try:
rv = func(data)
except 'xx':
print 'Test FAILED for audioop.'+name+'() (with an exception)'
return
if not rv:
print 'Test FAILED for audioop.'+name+'()'
self.assertEqual(audioop.tostereo(data[0], 1, 1, 1), data2)
def test_main():
data = [gendata1(), gendata2(), gendata4()]
names = dir(audioop)
# We know there is a routine 'add'
routines = []
for n in names:
if type(eval('audioop.'+n)) == type(audioop.add):
routines.append(n)
for n in routines:
testone(n, data)
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_main():
run_unittest(TestAudioop)
if __name__ == '__main__':
test_main()
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