Accord.Tests.Math.GeneralComparerTest.GeneralComparerConstructorTest C# (CSharp) Method

        public void GeneralComparerConstructorTest()
        {
            double[] actual, expected;

            actual = new double[] { 0, -1, 2, Double.PositiveInfinity, Double.NegativeInfinity };
            expected = new double[] { Double.NegativeInfinity, -1, 0, 2, Double.PositiveInfinity };
            Array.Sort(actual, new GeneralComparer(ComparerDirection.Ascending, useAbsoluteValues: false));
            Assert.IsTrue(Matrix.IsEqual(actual, expected));

            actual = new double[] { 0, -1, 2, Double.PositiveInfinity, Double.NegativeInfinity };
            expected = new double[] { Double.PositiveInfinity, 2, 0, -1, Double.NegativeInfinity };
            Array.Sort(actual, new GeneralComparer(ComparerDirection.Descending, false));
            Assert.IsTrue(Matrix.IsEqual(actual, expected));

            actual = new double[] { 0, -1, 2, Double.PositiveInfinity, Double.NegativeInfinity };
            expected = new double[] { Double.PositiveInfinity, Double.NegativeInfinity, 2, -1, 0 };
            Array.Sort(actual, new GeneralComparer(ComparerDirection.Descending, true));
            Assert.IsTrue(Matrix.IsEqual(actual, expected));

            actual = new double[] { 0, -1, 2, Double.PositiveInfinity, Double.NegativeInfinity };
            expected = new double[] { Double.PositiveInfinity, Double.NegativeInfinity, 2, -1, 0 };
            Array.Sort(actual, new GeneralComparer(ComparerDirection.Descending, Math.Abs));
            Assert.IsTrue(Matrix.IsEqual(actual, expected));
        }
    }