mirror of
https://github.com/python/cpython.git
synced 2025-10-31 18:28:49 +00:00
70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
from test.support import run_unittest, TESTFN
|
|
import unittest
|
|
import os
|
|
|
|
import sunau
|
|
|
|
nchannels = 2
|
|
sampwidth = 2
|
|
framerate = 8000
|
|
nframes = 100
|
|
|
|
class SunAUTest(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
self.f = None
|
|
|
|
def tearDown(self):
|
|
if self.f is not None:
|
|
self.f.close()
|
|
try:
|
|
os.remove(TESTFN)
|
|
except OSError:
|
|
pass
|
|
|
|
def test_lin(self):
|
|
self.f = sunau.open(TESTFN, 'w')
|
|
self.f.setnchannels(nchannels)
|
|
self.f.setsampwidth(sampwidth)
|
|
self.f.setframerate(framerate)
|
|
self.f.setcomptype('NONE', 'not compressed')
|
|
output = b'\xff\x00\x12\xcc' * (nframes * nchannels * sampwidth // 4)
|
|
self.f.writeframes(output)
|
|
self.f.close()
|
|
|
|
self.f = sunau.open(TESTFN, 'rb')
|
|
self.assertEqual(nchannels, self.f.getnchannels())
|
|
self.assertEqual(sampwidth, self.f.getsampwidth())
|
|
self.assertEqual(framerate, self.f.getframerate())
|
|
self.assertEqual(nframes, self.f.getnframes())
|
|
self.assertEqual('NONE', self.f.getcomptype())
|
|
self.assertEqual(self.f.readframes(nframes), output)
|
|
self.f.close()
|
|
|
|
def test_ulaw(self):
|
|
self.f = sunau.open(TESTFN, 'w')
|
|
self.f.setnchannels(nchannels)
|
|
self.f.setsampwidth(sampwidth)
|
|
self.f.setframerate(framerate)
|
|
self.f.setcomptype('ULAW', '')
|
|
# u-law compression is lossy, therefore we can't expect non-zero data
|
|
# to come back unchanged.
|
|
output = b'\0' * nframes * nchannels * sampwidth
|
|
self.f.writeframes(output)
|
|
self.f.close()
|
|
|
|
self.f = sunau.open(TESTFN, 'rb')
|
|
self.assertEqual(nchannels, self.f.getnchannels())
|
|
self.assertEqual(sampwidth, self.f.getsampwidth())
|
|
self.assertEqual(framerate, self.f.getframerate())
|
|
self.assertEqual(nframes, self.f.getnframes())
|
|
self.assertEqual('ULAW', self.f.getcomptype())
|
|
self.assertEqual(self.f.readframes(nframes), output)
|
|
self.f.close()
|
|
|
|
|
|
def test_main():
|
|
run_unittest(SunAUTest)
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|