forked from becdot/Logical-Python
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test.py
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test.py
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from bit import Bit, nand, mux, dmux
from multi import Multi, pad_multi, pad_to_digits, multimux, or_multiway,\
multimux_multiway, dmux_multiway
from ALU import *
import unittest
zero = Bit(0)
one = Bit(1)
m_fifteen = Multi([one, one, one, one])
m_fourteen = Multi([one, one, one, zero])
m_eight = Multi([one, zero, zero, zero])
m_three = Multi([one, one])
m_one = Multi([zero, zero, one])
m_zero = Multi([zero])
zero16 = Multi([zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero])
one16 = Multi([zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, one])
three16 = Multi([zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, one, one])
eight16 = Multi([zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, one, zero, zero, zero])
fourteen16 = Multi([zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, one, one, one, zero])
fifteen16 = Multi([zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, zero, one, one, one, one])
class TestLogic(unittest.TestCase):
def test_nand(self):
"Defines a truth table for nand"
self.assertTrue(nand(zero, zero))
self.assertTrue(nand(zero, one))
self.assertTrue(nand(one, zero))
self.assertFalse(nand(one, one))
def test___invert__(self):
"Defines a truth table for invert(re-defined as not)"
self.assertTrue((~zero))
self.assertFalse((~one))
def test___and__(self):
"Defines a truth table for and"
self.assertFalse((zero & zero))
self.assertFalse((zero & one))
self.assertFalse((one & zero))
self.assertTrue((one & one))
def test___or__(self):
"Defines a truth table for or"
self.assertFalse((zero | zero))
self.assertTrue((zero | one))
self.assertTrue((one | zero))
self.assertTrue((one | one))
def test___xor__(self):
"Defines a truth table for xor"
self.assertFalse((zero ^ zero))
self.assertTrue((zero ^ one))
self.assertTrue((one ^ zero))
self.assertFalse((one ^ one))
def test_mux(self):
"Defines a truth table for mux"
self.assertFalse(mux(zero, zero, zero))
self.assertFalse(mux(zero, zero, one))
self.assertFalse(mux(zero, one, zero))
self.assertTrue(mux(zero, one, one))
self.assertTrue(mux(one, zero, zero))
self.assertFalse(mux(one, zero, one))
self.assertTrue(mux(one, one, zero))
self.assertTrue(mux(one, one, one))
def test_dmux(self):
"Defines a truth table for dmux"
a, b = dmux(zero, zero)
self.assertFalse(a)
self.assertFalse(b)
a, b = dmux(zero, one)
self.assertFalse(a)
self.assertFalse(b)
a, b = dmux(one, zero)
self.assertTrue(a)
self.assertFalse(b)
a, b = dmux(one, one)
self.assertFalse(a)
self.assertTrue(b)
def test_Multi_to_decimel(self):
"Binary -> decimel"
"TODO -- check against negative numbers"
self.assertEquals(Multi.to_decimel(m_fifteen), 15)
self.assertEquals(Multi.to_decimel(m_eight), 8)
self.assertEquals(Multi.to_decimel(m_one), 1)
self.assertEquals(Multi.to_decimel(m_zero), 0)
def test_Multi_pad(self):
"Checks that Multi instances of uneven length are padded appropriately, and that instances of equal length are returned unchanged"
self.assertEquals(tuple([str(m) for m in pad_multi(m_one, m_zero)]), (str(m_one), str(Multi([zero, zero, zero]))))
self.assertEquals(tuple([str(m) for m in pad_multi(m_zero, m_one)]), (str(Multi([zero, zero, zero])), str(m_one)))
self.assertEquals(tuple([str(m) for m in pad_multi(m_three, m_zero)]), (str(m_three), str(Multi([zero, zero]))))
self.assertEquals(tuple([str(m) for m in pad_multi(m_zero, m_one)]), (str(Multi([zero, zero, zero])), str(m_one)))
self.assertEquals(tuple([str(m) for m in pad_multi(m_eight, m_one)]), (str(m_eight), str(Multi([zero, zero, zero, one]))))
self.assertEquals(tuple([str(m) for m in pad_multi(m_fourteen, m_fifteen)]), (str(m_fourteen), str(m_fifteen)))
def test_Multi_pad_to_digits_with_two_inputs(self):
"""Checks that Multi arrays are padded to the specified number of digits, instances of equal length are returned unchanged,
and that a digit that is too low will return the original Multi instances"""
three4 = Multi([zero, zero, one, one])
zero3 = Multi([zero, zero, zero])
zero4 = Multi([zero, zero, zero, zero])
one4 = Multi([zero, zero, zero, one])
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_eight, 4, m_one)]), (str(m_eight), str(one4)))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_one, 4, m_eight)]), (str(one4), str(m_eight)))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_zero, 3, m_one)]), (str(zero3), str(m_one)))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_three, 4, m_zero)]), (str(three4), str(zero4)))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_one, 1, m_zero)]), (str(m_one), str(m_zero)))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_three, 4, m_one)]), (str(three4), str(one4)))
def test_Multi_pad_to_digits_with_variable_inputs(self):
"""Checks that Multi arrays are padded to the specified number of digits, instances of equal length are returned unchanged,
and that a digit that is too low will return the original Multi instances"""
three4 = Multi([zero, zero, one, one])
zero3 = Multi([zero, zero, zero])
zero4 = Multi([zero, zero, zero, zero])
one4 = Multi([zero, zero, zero, one])
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_zero, 3)]), (str(zero3),))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_three, 4)]), (str(three4),))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_one, 1)]), (str(m_one),))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_three, 4)]), (str(three4),))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_zero, 4, m_one, m_eight)]), (str(zero4), str(one4), str(m_eight)))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_eight, 4, m_one, m_eight)]), (str(m_eight), str(one4), str(m_eight)))
self.assertEquals(tuple([str(m) for m in pad_to_digits(m_fourteen, 4, m_fifteen)]), (str(m_fourteen), str(m_fifteen)))
def test_Multi_and(self):
"Checks that the multibit & returns the correct values and pads Multi arrays of different sizes appropriately"
zero4 = Multi([zero, zero, zero, zero])
two4 = Multi([zero, zero, one, zero])
self.assertEquals(str(m_eight & m_zero), str(zero4))
self.assertEquals(str(m_eight & m_one), str(zero4))
self.assertEquals(str(m_eight & m_fifteen), str(m_eight))
self.assertEquals(str(m_three & m_fourteen), str(two4))
self.assertEquals(str(m_one & m_three), str(m_one))
def test_Multi_not(self):
"Checks that the multibit ~ flips all the signs of a Multi array"
self.assertEquals(str(~m_fifteen), str(Multi([zero, zero, zero, zero])))
self.assertEquals(str(~m_eight), str(Multi([zero, one, one, one])))
self.assertEquals(str(~m_three), str(Multi([zero, zero])))
self.assertEquals(str(~m_one), str(Multi([one, one, zero])))
self.assertEquals(str(~m_zero), str(Multi([one])))
def test_Multi_or(self):
"Checks that multibit | returns the correct value and pads Multi arrays of different sizes appropriately"
self.assertEquals(str(m_eight | m_zero), str(m_eight))
self.assertEquals(str(m_eight | m_one), str(Multi([one, zero, zero, one])))
self.assertEquals(str(m_eight | m_fifteen), str(m_fifteen))
self.assertEquals(str(m_three | m_one), str(Multi([zero, one, one])))
self.assertEquals(str(m_one | m_fourteen), str(m_fifteen))
def test_multimux(self):
zero3 = Multi([zero, zero, zero])
self.assertEquals(str(multimux(m_eight, m_zero, zero)), str(m_eight))
self.assertEquals(str(multimux(m_eight, m_fifteen, one)), str(m_fifteen))
self.assertEquals(str(multimux(m_zero, m_one, zero)), str(zero3))
self.assertEquals(str(multimux(m_zero, m_one, one)), str(m_one))
def test_or_multiway(self):
self.assertTrue(str(or_multiway(m_eight)))
self.assertTrue(str(or_multiway(m_fifteen)))
self.assertTrue(str(or_multiway(m_one)))
self.assertTrue(str(or_multiway(m_zero)))
def test_multimux_multiway(self):
one4 = Multi([zero, zero, zero, one])
zero4 = Multi([zero, zero, zero, zero])
self.assertEquals(str(multimux_multiway(Multi([one]), m_fifteen, m_fourteen)), str(m_fourteen))
self.assertEquals(str(multimux_multiway(Multi([one, one]), m_fifteen, m_fourteen, m_zero, m_one)), str(one4))
self.assertEquals(str(multimux_multiway(Multi([zero, one]), m_three, m_zero, m_fifteen, m_fourteen)), str(zero4))
self.assertEquals(str(multimux_multiway(Multi([one, zero, zero]), m_zero, m_three, m_fourteen, m_eight, m_one, m_zero,
m_fifteen, m_fourteen)), str(m_eight))
self.assertEquals(str(multimux_multiway(Multi([zero, one, zero]), m_zero, m_three, m_fourteen, m_eight, m_one, m_zero,
m_fifteen, m_fourteen)), str(m_fourteen))
def test_dmux_multiway(self):
m_one = Multi([one])
m_zero = Multi([zero])
a = dmux_multiway(m_one, m_zero)
b = dmux_multiway(m_one, Multi([zero, one]))
c = dmux_multiway(m_one, Multi([one, one]))
d = dmux_multiway(m_one, Multi([zero, one, one]))
self.assertEquals([str(bit) for bit in a], [str(Multi([one])), str(Multi([zero]))])
self.assertEquals([str(bit) for bit in b], [str(Multi([zero])), str(Multi([one])), str(Multi([zero])), str(Multi([zero]))])
self.assertEquals([str(bit) for bit in c], [str(Multi([zero])), str(Multi([zero])), str(Multi([zero])), str(Multi([one]))])
self.assertEquals([str(bit) for bit in d], [str(Multi([zero])), str(Multi([zero])), str(Multi([zero])), str(Multi([one])),
str(Multi([zero])), str(Multi([zero])), str(Multi([zero])), str(Multi([zero]))])
def test_half_adder(self):
s, c = half_adder(zero, zero)
self.assertFalse(s)
self.assertFalse(c)
s, c = half_adder(zero, one)
self.assertTrue(s)
self.assertFalse(c)
s, c = half_adder(one, zero)
self.assertTrue(s)
self.assertFalse(c)
s, c = half_adder(one, one)
self.assertFalse(s)
self.assertTrue(c)
def test_full_adder(self):
s, c = full_adder(zero, zero, zero)
self.assertFalse(s)
self.assertFalse(c)
s, c = full_adder(zero, zero, one)
self.assertTrue(s)
self.assertFalse(c)
s, c = full_adder(zero, one, zero)
self.assertTrue(s)
self.assertFalse(c)
s, c = full_adder(zero, one, one)
self.assertFalse(s)
self.assertTrue(c)
s, c = full_adder(one, zero, zero)
self.assertTrue(s)
self.assertFalse(c)
s, c = full_adder(one, zero, one)
self.assertFalse(s)
self.assertTrue(c)
s, c = full_adder(one, one, zero)
self.assertFalse(s)
self.assertTrue(c)
s, c = full_adder(one, one, one)
self.assertTrue(s)
self.assertTrue(c)
# def test_add_multi(self):
# self.assertEquals(str(add_multi(m_zero, m_one)), str(one16))
# self.assertEquals(str(add_multi(m_fourteen, m_one)), str(fifteen16))
# self.assertEquals(str(add_multi(m_three, m_three)), str(Multi(one, one, zero)))
if __name__ == "__main__":
unittest.main()