def test_pull_uint8_truncated(self):
buf = Buffer(capacity=0)
with self.assertRaises(BufferReadError):
buf.pull_uint8()
self.assertEqual(buf.tell(), 0)
def test_pull_uint8(self):
buf = Buffer(data=b"\x08\x07\x06\x05\x04\x03\x02\x01")
self.assertEqual(buf.pull_uint8(), 0x08)
self.assertEqual(buf.tell(), 1)