private void TestMutation(int firstRandomValue, int secondRandomValue, int[] expectedValues)
{
ListShiftMutationOperator op = new ListShiftMutationOperator
{
MutationRate = 1
};
RandomNumberService.Instance = new FakeRandomNumberService(firstRandomValue, secondRandomValue);
IntegerListEntity entity = new IntegerListEntity
{
MinimumStartingLength = 5,
MaximumStartingLength = 5,
};
entity.Initialize(new MockGeneticAlgorithm());
for (int i = 0; i < 5; i++)
{
entity[i] = i;
}
IntegerListEntity result = (IntegerListEntity)op.Mutate(entity);
Assert.Equal(expectedValues, result);
}
public void ListShiftMutationOperator_GenerateMutation_NullEntity()
{
ListShiftMutationOperator op = new ListShiftMutationOperator();
PrivateObject accessor = new PrivateObject(op);
Assert.Throws <ArgumentNullException>(() => accessor.Invoke("GenerateMutation", (GeneticEntity)null));
}
public void ListShiftMutationOperator_GenerateMutation_NoMutation()
{
ListShiftMutationOperator op = new ListShiftMutationOperator
{
MutationRate = 0
};
PrivateObject accessor = new PrivateObject(op);
bool result = (bool)accessor.Invoke("GenerateMutation", new IntegerListEntity());
Assert.False(result);
}