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from components.ram import Ram
import unittest
from random import randint
class RamTest(unittest.TestCase):
def setUp(self):
"""
Init test
"""
self.caretaker=dict({"MDR":0,"MAR":0,"MBR":0,"PC":0})
def test_write(self):
"""
Test write method
"""
toWrite=randint(0,2**32) # Pick a random number to write
self.caretaker["MDR"]=toWrite
ram=Ram(self.caretaker,10000)
ram.write() # Write a random number at address 0
data=ram.dump() # Dump ram
##### Test if everything is written using big endian model #####
self.assertEqual((toWrite>>24)&0xFF,data[self.caretaker["MAR"]])
self.assertEqual((toWrite>>16)&0xFF,data[self.caretaker["MAR"]+1])
self.assertEqual((toWrite>>8)&0xFF,data[self.caretaker["MAR"]+2])
self.assertEqual(toWrite&0xFF,data[self.caretaker["MAR"]+3])
if __name__ == "__main__":
unittest.main()
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