def test_write_int(self):
writer = BigEndianByteArrayByteWriter()
int_to_write = 0xF1F2F3F4
writer.write_int(int_to_write)
self.assertEqual(writer.get_n_bytes_written(), 4)
self.assertEqual(writer.data, bytearray([0xF1, 0xF2, 0xF3, 0xF4]))
