public void UnaryMinusToStringBinTest()
{
var exp = new UnaryMinus(new Add(new Number(5), new Number(0)));
Assert.Equal("-(5 + 0)", exp.ToString(commoonFormatter));
}
public void UnaryMinusToStringTest()
{
var exp = new UnaryMinus(new Number(5));
Assert.Equal("-5", exp.ToString(commoonFormatter));
}