using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Azimuth.DenseLinearAlgebra;

namespace Azimuth.UnitTests.DenseLinearAlgebra
{
    public class IVectorTests : UnitTestSharp.TestFixture
    {
        public class CountTests : UnitTestSharp.TestFixture
        {
            DenseVector dense = new DenseVector(new Scalar[] { -1, 1, -1, 0, 1, 2, 3 });
            public void Basic()
            {
                CheckEqual(7, dense.Count());
            }

            public void Negative()
            {
                CheckEqual(2, dense.Count(x => x < 0));
            }

            public void Positive()
            {
                CheckEqual(5, dense.Count(x => x.Sign == 1));
            }
        }

        public class AllTests : UnitTestSharp.TestFixture
        {
            DenseVector dense = new DenseVector(new Scalar[] { -1, 1, -1, 0, 1, 2, 3 });
            public void False()
            {
                CheckFalse(dense.All(x => x.Sign == 1));
            }

            public void True()
            {
                Check(dense.All(x => x < 50));
                Check(dense.All(x => x > -50));
            }
        }

        public class AnyTests : UnitTestSharp.TestFixture
        {
            DenseVector dense = new DenseVector(new Scalar[] { -1, 1, -1, 0, 1, 2, 3 });
            
            public void False()
            {
                CheckFalse(dense.Any(x => x.Sign == 0));
            }

            public void True()
            {
                Check(dense.Any(x => x.Sign == 1));
                Check(dense.Any(x => x.Sign == -1));
            }
        }
    }
}