public void Calculate_IncorrectExpressionTest()
{
//Arrange
var stringTokens = "2 + _2".Split();
TokenCollection tokens = new TokenCollection();
//Act
tokens.AddMany(stringTokens);
//Assert
Assert.ThrowsException <NotImplementedException>(() => tokens.CreateRPN());
}
public void Calculate_WithoutRPN_ReturnExceptionTest()
{
//Arrange
var stringTokens = "2 + 2".Split();
TokenCollection tokens = new TokenCollection();
List <ServerFormula> formulas = new List <ServerFormula>();
//Act
tokens.AddMany(stringTokens);
//Assert
Assert.ThrowsException <InvalidOperationException>(() => tokens.Calculate(formulas));
}
private static TokenCollection GetTokens(string exp)
{
var fplist = exp.Replace("(", " ( ").Replace(")", " ) ");
var stringTokens = Operator.GetAll
.Aggregate(fplist, (list, op) => list.Replace(op.Name, $" {op.Name} "))
.Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries);
var tokens = new TokenCollection();
tokens.AddMany(stringTokens);
return(tokens);
}
public void Calculate_DivideByZeroTest()
{
//Arrange
var stringTokens = "2 / 0".Split();
TokenCollection tokens = new TokenCollection();
List <ServerFormula> formulas = new List <ServerFormula>();
//Act
tokens.AddMany(stringTokens);
tokens.CreateRPN();
//Assert
Assert.ThrowsException <DivideByZeroException>(() => tokens.Calculate(formulas));
}
public void AddMany_ManyIsNotValidTest()
{
//Arrange
var stringTokens = "( 2 + 3)/ 10".Split();
TokenCollection tokens = new TokenCollection();
const int summaryTokenCount = 5;
const int brokenTokensCount = 1;
//Act
tokens.AddMany(stringTokens);
//Assert
Assert.AreEqual(summaryTokenCount, tokens.Count);
Assert.AreEqual(brokenTokensCount, tokens.Where(token => token is UnknownToken).Count());
}
public void CalcuateTest(string expression, double expectedResult)
{
//Arrange
var stringTokens = expression.Split();
TokenCollection tokens = new TokenCollection();
List <ServerFormula> formulas = new List <ServerFormula>();
//Act
tokens.AddMany(stringTokens);
tokens.CreateRPN();
var result = tokens.Calculate(formulas);
//Assert
Assert.AreEqual(expectedResult, result, 0.01);
}
public void Calcuate_WithIncorrectListOfFormulaTest()
{
//Arrange
var stringTokens = "2 + a * c".Split();
TokenCollection tokens = new TokenCollection();
List <ServerFormula> formulas = new List <ServerFormula>()
{
new ServerFormula {
Name = "a", Value = 13
}
};
//Act
tokens.AddMany(stringTokens);
tokens.CreateRPN();
//Assert
Assert.ThrowsException <ArgumentException>(() => tokens.Calculate(formulas));
}
public TokenCollection ConstructTokens(string exp)
{
if (string.IsNullOrEmpty(exp))
{
logger.Error("Значение формулы было неопределенным");
return(null);
}
var fplist = exp.Replace("(", " ( ").Replace(")", " ) ").Replace(".", ",");
var stringTokens = Operator.GetAll
.Aggregate(fplist, (list, op) => list.Replace(op.Name, $" {op.Name} "))
.Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries);
Tokens = new TokenCollection();
Tokens.AddMany(stringTokens);
return(Tokens);
}
public void Calcuate_WithCorrectListOfFormulaTest()
{
//Arrange
var stringTokens = "2 + a * 10".Split();
TokenCollection tokens = new TokenCollection();
List <ServerFormula> formulas = new List <ServerFormula>()
{
new ServerFormula {
Name = "a", Value = 13
}
};
//Act
tokens.AddMany(stringTokens);
tokens.CreateRPN();
var result = tokens.Calculate(formulas);
//Assert
Assert.AreEqual(132, result, 0.01);
}
