def test_topostfix():
case = (
("8-(3+2*6)/5+4", "8 3 2 6 * + 5 / - 4 +"),
("((5+7)/3*7-(3*2))+(7-3)*3+2*5+4*5+1*6+1*5", "5 7 + 3 / 7 * 3 2 * - 7 3 - 3 * + 2 5 * + 4 5 * + 1 6 * + 1 5 * +"),
("1*((2+3) /2) ^5", "1 2 3 + 2 / 5 ** *"),
("-1+((2+3)*4/5)", "1 - 2 3 + 4 * 5 / +"),
("-1+-5", "1 - 5 - +"),
("pow(3,2)+ sin(45)", "3 2 , pow 45 sin +"),
("-$a+$b*(-$c+$d)+$e", "_a - _b _c - _d + * + _e +"),
("pOw(1*(2+3), 6+5)", "1 2 3 + * 6 5 + , pow"),
("-1+5*-6", "1 - 5 6 - * +"),
("Sum([1+1,5+6*7,POW (3,2)])", "1 1 + 5 6 7 * + , 3 2 , pow , sum"),
("5/ 4mod sin(1)+SUm([1,2])^3.5* 2-4", "5 4 1 sin % / 1 2 , sum 3.5 ** 2 * + 4 -"),
("4", "4"),
("-sin(45)", "45 sin -"),
("-+-+sin(45)", "45 sin + - + -"),
("$var", "_var"),
("-(+5+6)", "5 + 6 + -"),
("$vAr", "_var"),
)
for c, r in case:
exp = Convertor.preprocessing(c)
gtk = Convertor.tokenize(exp)
rr = Convertor.topostfix(gtk)
assert " ".join(map(str, rr)) == r
def test_preprocessing():
case = (
("1+1", "1+1"),
("1 + 1 ", "1 + 1"),
(" 1 +1", "1 +1"),
("1 pOw $e", "1 pow _e"),
)
for c, r in case:
assert Convertor.preprocessing(c) == r
