from test.test_support import TESTFN, run_unittest

import os

import wave

import unittest

nchannels = 2

sampwidth = 2

framerate = 8000

nframes = 100

class TestWave(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_it(self):

        self.f = wave.open(TESTFN, 'wb')

        self.f.setnchannels(nchannels)

        self.f.setsampwidth(sampwidth)

        self.f.setframerate(framerate)

        self.f.setnframes(nframes)

        output = '\0' * nframes * nchannels * sampwidth

        self.f.writeframes(output)

        self.f.close()

        self.f = wave.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(self.f.readframes(nframes), output)

def test_main():

    run_unittest(TestWave)

if __name__ == '__main__':

    test_main()