public void IsMetThrowsForMissingCovarianceMatrix()
{
var terminationCriterion = new NoEffectAxis();
var data = NoEffectAxisTest.CreateCmaEsData(covariances: null, currentGeneration: 1, currentStepSize: 0.2);
Assert.Throws <ArgumentOutOfRangeException>(() => terminationCriterion.IsMet(data));
}
public void IsMetReturnsTrueForTinyStepSize()
{
var covariances = Matrix <double> .Build.DenseIdentity(3);
var generation = 6;
var stepSize = double.Epsilon;
var terminationCriterion = new NoEffectAxis();
Assert.True(
terminationCriterion.IsMet(NoEffectAxisTest.CreateCmaEsData(covariances, generation, stepSize)),
"Termination criterion should have been met.");
}
public void IsMetReturnsFalseForSignificantShift()
{
var covariances = Matrix <double> .Build.DenseIdentity(3);
var generation = 6;
var stepSize = double.Epsilon * 10;
var terminationCriterion = new NoEffectAxis();
Assert.False(
terminationCriterion.IsMet(NoEffectAxisTest.CreateCmaEsData(covariances, generation, stepSize)),
"Termination criterion should not have been met.");
}
public void IsMetReturnsTrueForTinyDiagonalElement()
{
var covariances = Matrix <double> .Build.DenseOfDiagonalArray(
new[] { 1d, 1d, double.Epsilon *double.Epsilon });
var generation = 6;
var stepSize = 0.1;
var terminationCriterion = new NoEffectAxis();
Assert.True(
terminationCriterion.IsMet(NoEffectAxisTest.CreateCmaEsData(covariances, generation, stepSize)),
"Termination criterion should have been met.");
}