sndarray_test.py 文件源码

def test_make_sound(self):
        if not arraytype:
            self.fail("no array package installed")

        def check_sound(size, channels, test_data):
            try:
                pygame.mixer.init(22050, size, channels)
            except pygame.error:
                # Not all sizes are supported on all systems.
                return
            try:
                __, sz, __ = pygame.mixer.get_init()
                if sz == size:
                    srcarr = array(test_data, self.array_dtypes[size])
                    snd = pygame.sndarray.make_sound(srcarr)
                    arr = pygame.sndarray.samples(snd)
                    self.failUnless(alltrue(arr == srcarr),
                                    "size: %i\n%s\n%s" %
                                    (size, arr, test_data))
            finally:
                pygame.mixer.quit()

        check_sound(8, 1, [0, 0x0f, 0xf0, 0xff])
        check_sound(8, 2,
                    [[0, 0x80], [0x2D, 0x41], [0x64, 0xA1], [0xff, 0x40]])
        check_sound(16, 1, [0, 0x00ff, 0xff00, 0xffff])
        check_sound(16, 2, [[0, 0xffff], [0xffff, 0],
                            [0x00ff, 0xff00], [0x0f0f, 0xf0f0]])
        check_sound(-8, 1, [0, -0x80, 0x7f, 0x64])
        check_sound(-8, 2,
                    [[0, -0x80], [-0x64, 0x64], [0x25, -0x50], [0xff, 0]])
        check_sound(-16, 1, [0, 0x7fff, -0x7fff, -1])
        check_sound(-16, 2, [[0, -0x7fff], [-0x7fff, 0],
                             [0x7fff, 0], [0, 0x7fff]])