public void EqualsTest()
{
// Arrange
const int nInputs = 9;
const int nOutputs = 1;
int[] hiddenLayers = new int[] { 9 };
Dna dna1 = Dna.GenerateRandomDnaEncoding(nInputs, hiddenLayers, nOutputs, ActivationType.LeakyRelu, true);
Dna dna1ValueClone = Dna.Clone(dna1);
Dna dna1ReferenceClone = dna1;
Dna dna2 = Dna.Clone(dna1);
dna2.WeightsAndBiases[0] = 50;
// Act/Assert
dna1.Equals(dna1).Should().BeTrue();
dna1.Equals(dna1ReferenceClone).Should().BeTrue();
dna1ReferenceClone.Equals(dna1).Should().BeTrue();
dna1.Equals(dna1ValueClone).Should().BeTrue();
dna1ValueClone.Equals(dna1).Should().BeTrue();
dna1.Equals(dna2).Should().BeFalse();
dna2.Equals(dna1).Should().BeFalse();
dna1ValueClone.Equals(dna2).Should().BeFalse();
dna2.Equals(dna1ValueClone).Should().BeFalse();
dna1ReferenceClone.Equals(dna2).Should().BeFalse();
dna2.Equals(dna1ReferenceClone).Should().BeFalse();
dna1.WeightsAndBiases[1] = 100;
dna1.Equals(dna1ReferenceClone).Should().BeTrue(); // reference stays equal
dna1ReferenceClone.Equals(dna1).Should().BeTrue();
dna1.Equals(dna1ValueClone).Should().BeFalse(); // value changes
dna1ValueClone.Equals(dna1).Should().BeFalse();
}
static void AssertDnaHeterogeneity(List <Dna> population)
{
population.Should().OnlyHaveUniqueItems(); // by reference
var occurrences = population.ToDictionary(dna => dna, (_) => 1);
for (int i = 0; i < population.Count; i++)
{
Dna pop = population[i];
for (int j = 0; j < population.Count; j++)
{
if (i != j && pop.Equals(population[j]))
{
occurrences[pop] += 1;
}
}
}
occurrences.Values.Should().OnlyContain(occurrenceCount => occurrenceCount == 1);
}