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#!/usr/bin/env python3
import unittest
import struct
from os import path, environ
class TestRom(unittest.TestCase):
"""Test that the generated game ROM is correct."""
ROM_SIZE = int(environ.get("ROM_MAX", 0), 16)
@classmethod
def setUpClass(cls):
with open(path.join("..", "bin", "game.rom"), "rb") as fd:
cls.data = fd.read()
with open(path.join("..", "game", "build", "game.map"), "rb") as fd:
game_map = fd.readlines()
cls.main_init = 0
for line in game_map:
if b"_main_init" in line:
cls.main_init = int(line.split()[0], 16)
break
def test_header_magic(self):
self.assertEqual(self.data[:2], b"AB")
def test_size(self):
self.assertEqual(len(self.data), self.ROM_SIZE)
def test_header_main_init_address(self):
self.assertEqual(struct.unpack("<H", self.data[2:4]), (self.main_init,))
if __name__ == "__main__":
unittest.main()
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