public void MediumTest()
{
string mathExpression = "(ctg(pi/4)+3%2)^(sqrt(100/10/2+-1))";
List <Token> tokensExpression = StringConverter.ConvertToTokensExpression(mathExpression);
double actual = Calculator.CalculateExpression(tokensExpression);
double expected = 4;
Assert.AreEqual(expected, actual);
}