public void HasReached_StagnantButNotReachTheGenerationsNumber_False()
{
var target = new FitnessStagnationTermination(4);
var repository = new MockRepository();
var ga = repository.StrictMock <IGeneticAlgorithm>();
using (repository.Ordered())
{
ga.Expect(g => g.BestChromosome).Return(new ChromosomeStub()
{
Fitness = 0.1
});
ga.Expect(g => g.BestChromosome).Return(new ChromosomeStub()
{
Fitness = 0.1
});
ga.Expect(g => g.BestChromosome).Return(new ChromosomeStub()
{
Fitness = 0.1
});
}
repository.ReplayAll();
Assert.IsFalse(target.HasReached(ga));
Assert.IsFalse(target.HasReached(ga));
Assert.IsFalse(target.HasReached(ga));
}
public void HasReached_StagnantAndReachGenerationNumber_True()
{
var target = new FitnessStagnationTermination(3);
var ga = Substitute.For <IGeneticAlgorithm>();
ga.BestChromosome.Returns(new ChromosomeStub()
{
Fitness = 0.2
},
new ChromosomeStub()
{
Fitness = 0.2
},
new ChromosomeStub()
{
Fitness = 0.3
},
new ChromosomeStub()
{
Fitness = 0.3
},
new ChromosomeStub()
{
Fitness = 0.3
});
Assert.IsFalse(target.HasReached(ga));
Assert.IsFalse(target.HasReached(ga));
Assert.IsFalse(target.HasReached(ga));
Assert.IsFalse(target.HasReached(ga));
Assert.IsTrue(target.HasReached(ga));
}
public ITermination FitnessStagnation()
{
var target = new FitnessStagnationTermination(2);
var ga = Substitute.For <IGeneticAlgorithm>();
ga.BestChromosome.Returns(new TspChromosome(10)
{
Fitness = 1
});
target.HasReached(ga);
target.HasReached(ga);
return(target);
}
public void HasReached_StagnantButNotReachTheGenerationsNumber_False()
{
var target = new FitnessStagnationTermination(4);
var ga = Substitute.For <IGeneticAlgorithm>();
ga.BestChromosome.Returns(
new ChromosomeStub()
{
Fitness = 0.1
},
new ChromosomeStub()
{
Fitness = 0.1
},
new ChromosomeStub()
{
Fitness = 0.1
});
Assert.IsFalse(target.HasReached(ga));
Assert.IsFalse(target.HasReached(ga));
Assert.IsFalse(target.HasReached(ga));
}