public void ExpressionCalculator_InvalidExpression_ThrowsException(string expression)
{
var expressionParser = new ExpressionParser();
var calculator = new ExpressionCalculator(expressionParser);
Assert.Throws <InvalidDataException>(() => calculator.Evaluate(expression));
}
public void ExpressionCalculator_IncorrectSyntax_ThrowsException(string expression)
{
var expressionParser = new ExpressionParser();
var calculator = new ExpressionCalculator(expressionParser);
Assert.Throws <Exception>(() => calculator.Evaluate(expression));
}
public void ExpressionCalculator_ValidExpression_GivesCorrectResult(string expression, double expected)
{
var expressionParser = new ExpressionParser();
var calculator = new ExpressionCalculator(expressionParser);
var expressionValue = calculator.Evaluate(expression);
Assert.Equal(expected, Math.Round(expressionValue, 6));
}
public ExpressionResult Evaluate(double initialValue = 0, Character target = null)
{
return(ExpressionCalculator.Evaluate(initialValue, Expr, target, Vars));
}
