public void partial_evaluation_with_variables(string text, string simplified)
{
var visitor = new EvalVisitor(name => name == "X" ? 5.0 : (double?)null);
Node n = new Analyser().Analyse(new StringTokenizer(text));
var s = visitor.VisitNode(n);
Assert.That(s.ToString(), Is.EqualTo(simplified));
}
public void test_evaluation(string text, double expectedResult)
{
Node n = new Analyser().Analyse(new StringTokenizer(text));
EvalVisitor visitor = new EvalVisitor();
var c = (ConstantNode)visitor.VisitNode(n);
Assert.That(c.Value, Is.EqualTo(expectedResult));
}
public void test_evaluation(string text, double expectedResult)
{
Node n1 = new Analyser().Analyse(new StringTokenizer(text));
Node n2 = new Analyser().Analyse(new StringTokenizer(text));
MutationVisitor mutationVisitor = new MutationVisitor(mutationRate: 1);
mutationVisitor.Mutate(ref n2);
EvalVisitor visitor = new EvalVisitor();
visitor.VisitNode(n1);
double result1 = visitor.Result;
visitor.VisitNode(n2);
double result2 = visitor.Result;
Assert.That(result1, Is.Not.EqualTo(result2));
}
public void test_evaluation(string text, string text2)
{
Node n = new Analyser().Analyse(new StringTokenizer(text));
Node n2 = new Analyser().Analyse(new StringTokenizer(text2));
Random r = new Random(7);
SwapGenomeVisitor genomeSwapper = new SwapGenomeVisitor();
Node n3 = genomeSwapper.SwapGenome(n, n2, r.Next(n.Count), r.Next(n2.Count));
EvalVisitor visitor = new EvalVisitor();
visitor.VisitNode(n2);
double result = visitor.Result;
visitor.VisitNode(n3);
double resultBase = visitor.Result;
Assert.That(result, Is.Not.EqualTo(resultBase));
}
public void test_evaluation(string text, double expectedResult)
{
Node n = new Analyser().Analyse(new StringTokenizer(text));
EvalVisitor visitor = new EvalVisitor();
visitor.VisitNode(n);
double result = visitor.Result;
Assert.That(result, Is.EqualTo(expectedResult));
}
private double test_function(Node n)
{
double fitness = 0;
foreach (var value in _values)
{
variableSetVisitor.SetVariable(n, "A", value[0]);
variableSetVisitor.SetVariable(n, "B", value[1]);
evalVisitor.VisitNode(n);
fitness -= Math.Abs(value[2] - evalVisitor.Result);
}
return(fitness);
}
public void with_variables(string text, double expectedResult)
{
Dictionary <string, double> vars = new Dictionary <string, double>();
vars.Add("X", 5);
vars.Add("Y", 7);
var visitor = new EvalVisitor(vars);
Node n = new Analyser().Analyse(new StringTokenizer(text));
var c = (ConstantNode)visitor.VisitNode(n);
Assert.That(c.Value, Is.EqualTo(expectedResult));
}
public void test_evaluation_with_var(string text, double expectedResult)
{
Node n = new Analyser().Analyse(new StringTokenizer(text));
VariableSetVisitor setVisitor = new VariableSetVisitor();
setVisitor.SetVariable(n, "a", 3.0);
EvalVisitor visitor = new EvalVisitor();
visitor.VisitNode(n);
double result = visitor.Result;
Assert.That(result, Is.EqualTo(expectedResult));
}