def test_can_invert(self):
expr = '~xF0'
result = ExprParser().parse(expr)
self.assertEqual(-0xF0 - 1, result.number)
import sys
from number import Number
from expr_parser import ExprParser
if len(sys.argv) != 2:
raise RuntimeError(f'Expected 1 argumements, got {len(sys.argv) - 1}')
convert = False
result = ExprParser().parse(sys.argv[1])
print(f' {result.asDecimal}')
print(f'0x {result.asHex}')
print(f'0b {result.asBinary}')
print(f'0o {result.asOctal}')
def test_can_rshift_or(self):
expr = '(b11110000 >> 4) | x0F'
result = ExprParser().parse(expr)
self.assertEqual(0x0F, result.number)
def test_can_xor(self):
expr = 'b11110000 ^ x0F'
result = ExprParser().parse(expr)
self.assertEqual(0xFF, result.number)
def test_can_get_remainder(self):
expr = '13 % 8'
result = ExprParser().parse(expr)
self.assertEqual(5, result.number)
def test_can_lshift_and(self):
expr = '(b00001111 << 4) & xF0'
result = ExprParser().parse(expr)
self.assertEqual(0xF0, result.number)
def test_can_multiply_and_divide(self):
expr = '(-x14 // 10) * 5'
result = ExprParser().parse(expr)
self.assertEqual(-10, result.number)
def test_can_evaluate_negative_number(self):
expr = '-x10'
result = ExprParser().parse(expr)
self.assertEqual(-0x10, result.number)
def test_can_divide(self):
expr = '20 // -10'
result = ExprParser().parse(expr)
self.assertEqual(-2, result.number)
def test_can_multiply(self):
expr = '(20 * -xA) * 5'
result = ExprParser().parse(expr)
self.assertEqual(-1000, result.number)
def test_can_add_and_subtract(self):
expr = '(-60 - 40) + 10'
result = ExprParser().parse(expr)
self.assertEqual(-90, result.number)
def test_can_subtract(self):
expr = '(60 - 40) - -10'
result = ExprParser().parse(expr)
self.assertEqual(30, result.number)
def test_can_add(self):
expr = '(10 + -20) + 30'
result = ExprParser().parse(expr)
self.assertEqual(20, result.number)