def test_rw_seek_tell(self):
data = byteify("A Teststring of length 25", "utf-8")
buf = BytesIO(data)
rw = rwops.rw_from_object(buf)
self.assertIsInstance(rw, rwops.SDL_RWops)
pos = rwops.rw_seek(rw, 0, rwops.RW_SEEK_END)
self.assertTrue(pos == buf.tell() == len(data))
pos = rwops.rw_seek(rw, 0, rwops.RW_SEEK_SET)
self.assertTrue(pos == buf.tell() == 0)
pos = rwops.rw_seek(rw, 15, rwops.RW_SEEK_CUR)
self.assertTrue(pos == buf.tell() == 15)
pos = rwops.rw_seek(rw, -3, rwops.RW_SEEK_CUR)
self.assertTrue(pos == buf.tell() == 12)
pos = rwops.rw_seek(rw, 7, rwops.RW_SEEK_CUR)
self.assertTrue(pos == buf.tell() == 19)
pos = rwops.rw_seek(rw, -11, rwops.RW_SEEK_END)
self.assertTrue(pos == buf.tell() == 14)
pos = rwops.rw_seek(rw, 8, rwops.RW_SEEK_SET)
self.assertTrue(pos == buf.tell() == 8)
pos = rwops.rw_seek(rw, -2, rwops.RW_SEEK_SET)
self.assertEqual(pos, -1)
self.assertTrue(buf.tell() == 8)
pos = rwops.rw_seek(rw, 12, rwops.RW_SEEK_END)
self.assertTrue(pos == buf.tell() == len(data) + 12)
def test_write_be_16(self):
data = byteify("A Teststring", "utf-8")
buf = BytesIO(data)
rw = rwops.rw_from_object(buf)
self.assertIsInstance(rw, rwops.SDL_RWops)
value = ((ord("q") << 8) | (ord("%")))
rwops.write_be_16(rw, value)
self.assertEqual(stringify(buf.getvalue(), "utf-8"), "q%Teststring")
rwops.rw_seek(rw, 6, rwops.RW_SEEK_SET)
rwops.write_be_16(rw, value)
self.assertEqual(stringify(buf.getvalue(), "utf-8"), "q%Testq%ring")
def test_rw_from_object(self):
buf = BytesIO()
rw = rwops.rw_from_object(buf)
self.assertIsInstance(rw, rwops.SDL_RWops)
for s in("Test", "Test", "Test", "Banana"):
buf.write(byteify(s, "utf-8"))
length = rwops.rw_seek(rw, 0, rwops.RW_SEEK_END)
rwops.rw_seek(rw, 0, rwops.RW_SEEK_SET)
self.assertEqual(len(buf.getvalue()), length)
rwops.rw_close(rw)
self.assertTrue(buf.closed)
self.assertRaises(ValueError, buf.write, "Test")
self.assertRaises(ValueError, buf.getvalue)
def test_read_be_64(self):
data = byteify("A Teststring 64b", "utf-8")
buf = BytesIO(data)
rw = rwops.rw_from_object(buf)
self.assertIsInstance(rw, rwops.SDL_RWops)
ch = rwops.read_be_64(rw)
self.assertEqual(chr(ch & 0x00000000000000FF), "t")
self.assertEqual(chr((ch & 0x000000000000FF00) >> 8), "s")
self.assertEqual(chr((ch & 0x0000000000FF0000) >> 16), "t")
self.assertEqual(chr((ch & 0x00000000FF000000) >> 24), "s")
self.assertEqual(chr((ch & 0x000000FF00000000) >> 32), "e")
self.assertEqual(chr((ch & 0x0000FF0000000000) >> 40), "T")
self.assertEqual(chr((ch & 0x00FF000000000000) >> 48), " ")
self.assertEqual(chr((ch & 0xFF00000000000000) >> 56), "A")
pos = rwops.rw_seek(rw, 8, rwops.RW_SEEK_SET)
self.assertEqual(pos, 8)
ch = rwops.read_be_64(rw)
self.assertEqual(chr(ch & 0x00000000000000FF), "b")
self.assertEqual(chr((ch & 0x000000000000FF00) >> 8), "4")
self.assertEqual(chr((ch & 0x0000000000FF0000) >> 16), "6")
self.assertEqual(chr((ch & 0x00000000FF000000) >> 24), " ")
self.assertEqual(chr((ch & 0x000000FF00000000) >> 32), "g")
self.assertEqual(chr((ch & 0x0000FF0000000000) >> 40), "n")
self.assertEqual(chr((ch & 0x00FF000000000000) >> 48), "i")
self.assertEqual(chr((ch & 0xFF00000000000000) >> 56), "r")
def test_write_be_32(self):
data = byteify("A Teststring", "utf-8")
buf = BytesIO(data)
rw = rwops.rw_from_object(buf)
self.assertIsInstance(rw, rwops.SDL_RWops)
value = ((ord("a") << 24) |
(ord("c") << 16) |
(ord("f") << 8) |
(ord("z"))
)
rwops.write_be_32(rw, value)
self.assertEqual(stringify(buf.getvalue(), "utf-8"), "acfzststring")
rwops.rw_seek(rw, 6, rwops.RW_SEEK_SET)
rwops.write_be_32(rw, value)
self.assertEqual(stringify(buf.getvalue(), "utf-8"), "acfzstacfzng")
def test_write_be_64(self):
data = byteify("A Teststring", "utf-8")
buf = BytesIO(data)
rw = rwops.rw_from_object(buf)
self.assertIsInstance(rw, rwops.SDL_RWops)
value = ((ord("q") << 56) |
(ord("w") << 48) |
(ord("b") << 40) |
(ord("k") << 32) |
(ord("a") << 24) |
(ord("c") << 16) |
(ord("f") << 8) |
(ord("z"))
)
rwops.write_be_64(rw, value)
self.assertEqual(stringify(buf.getvalue(), "utf-8"), "qwbkacfzring")
rwops.rw_seek(rw, 4, rwops.RW_SEEK_SET)
rwops.write_be_64(rw, value)
self.assertEqual(stringify(buf.getvalue(), "utf-8"), "qwbkqwbkacfz")
def test_read_be_16(self):
data = byteify("A Teststring", "utf-8")
buf = BytesIO(data)
rw = rwops.rw_from_object(buf)
self.assertIsInstance(rw, rwops.SDL_RWops)
ch = rwops.read_be_16(rw)
self.assertEqual(chr(ch & 0x00FF), " ")
self.assertEqual(chr(ch >> 8), "A")
pos = rwops.rw_seek(rw, 8, rwops.RW_SEEK_SET)
self.assertEqual(pos, 8)
ch = rwops.read_be_16(rw)
self.assertEqual(chr(ch & 0x00FF), "i")
self.assertEqual(chr(ch >> 8), "r")