using NUnit.Framework;

namespace InverseOfLife.Test;
[TestFixture]
public class EvoluteTests
{
    [Test]
    public void Mutate_ShouldModifyBitsBasedOnRate()
    {
        int resolution = 3;
        byte[] riboseSequence = [0b10101010, 0b11110000, 0b00001111, 0b00110011];
        var gene = new Gene(resolution, riboseSequence);

        float mutationRate = 1.0f;
        var mutatedGene = gene.Mutate(0, mutationRate);

        Assert.That(mutatedGene.RiboseSequence, Is.Not.EqualTo(riboseSequence));
    }

    [Test]
    public void Mutate_WithZeroRate_ShouldNotChangeRiboseSequence()
    {
        int resolution = 3;
        byte[] riboseSequence = [0b10101010, 0b11110000, 0b00001111, 0b00110011];
        var gene = new Gene(resolution, riboseSequence);

        float mutationRate = 0.0f;
        var mutatedGene = gene.Mutate(0, mutationRate);

        Assert.That(mutatedGene.RiboseSequence, Is.EqualTo(riboseSequence));
    }

    [Test]
    public void Mutate_WithSpecificRiboseIndex_ShouldOnlyAffectSpecifiedIndex()
    {
        int resolution = 3;
        byte[] riboseSequence = [0b10101010, 0b11110000, 0b00001111, 0b00001111];
        var gene = new Gene(resolution, riboseSequence);

        float mutationRate = 0.5f;
        int riboseIndex = 1;
        var mutatedGene = gene.Mutate(riboseIndex, mutationRate);
        
        Assert.That(mutatedGene.RiboseSequence[0], Is.EqualTo(riboseSequence[0]));
    }
}