Example #1
0
        public void SetUp()
        {
            _xVariable = new Variable("x");
            _yVariable = new Variable("y");

            // 2*x + 7*(-y + x)
            _formulaRoot =
                new TreeNode<Operator>(OperatorsLibrary.Sum,
                    new TreeNode<Operator>(OperatorsLibrary.Mul,
                        new TreeNode<Operator>(new Constant(2)),
                        new TreeNode<Operator>(_xVariable)),
                    new TreeNode<Operator>(OperatorsLibrary.Mul,
                        new TreeNode<Operator>(new Constant(7)),
                        new TreeNode<Operator>(OperatorsLibrary.Sum,
                            new TreeNode<Operator>(OperatorsLibrary.Minus,
                                new TreeNode<Operator>(_yVariable)),
                            new TreeNode<Operator>(_xVariable))));
        }
Example #2
0
        private static Operator OperatorFromString(string str, ICollection<Variable> availableVariables)
        {
            Operator knownOperator = GetKnownOperator(str);
            if (knownOperator != null)
                return knownOperator;

            double constant;
            if (double.TryParse(str, NumberStyles.Number, CultureInfo.InvariantCulture, out constant))
            {
                return new Constant(constant);
            }

            Variable availableVariable = availableVariables.FirstOrDefault(op => op.Name == str);
            if (availableVariable == null)
            {
                availableVariable = new Variable(str);
                availableVariables.Add(availableVariable);
            }
            return availableVariable;
        }
Example #3
0
 public void TestVariable(double a, double expected)
 {
     Variable variable = new Variable("x") { Value = a };
     double result = variable.Value;
     Assert.AreEqual(expected, result);
 }
Example #4
0
 public void TestName(string name)
 {
     Variable v = new Variable(name);
     Assert.AreEqual(name, v.Name);
 }