using Xunit;

namespace AppTesting
{
    public class SearchMinValueTests
    {
        // Путь 1
        [Fact]
        public void SearchMinValue_Way_1()
        {
            double[]? inputData = null;
            var result = Program.SearchMinValue(inputData);
            Assert.Null(result);
        }

        // Путь 2
        [Fact]
        public void SearchMinValue_Way_2()
        {
            double[] inputData = new double[0];
            var result = Program.SearchMinValue(inputData);
            Assert.Null(result);
        }

        // Путь 3
        [Fact]
        public void SearchMinValue_Way_3_1()
        {
            double[] inputData = new double[] { 42.5 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(42.5, result);
        }

        [Fact]
        public void SearchMinValue_Way_3_2()
        {
            double[] inputData = new double[] { -15.3 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(-15.3, result);
        }

        [Fact]
        public void SearchMinValue_Way_3_3()
        {
            double[] inputData = new double[] { 0 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(0, result);
        }

        [Fact]
        public void SearchMinValue_Way_3_4()
        {
            double[] inputData = new double[] { double.MaxValue };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(double.MaxValue, result);
        }

        [Fact]
        public void SearchMinValue_Way_3_5()
        {
            double[] inputData = new double[] { double.MinValue };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(double.MinValue, result);
        }

        // Путь 4
        [Fact]
        public void SearchMinValue_Way_4_1()
        {
            double[] inputData = new double[] { 5.0, 10.0 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(5.0, result);
        }

        [Fact]
        public void SearchMinValue_Way_4_2()
        {
            double[] inputData = new double[] { 7.7, 7.7 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(7.7, result);
        }

        [Fact]
        public void SearchMinValue_Way_4_3()
        {
            double[] inputData = new double[] { 3.0, 4.0, 5.0, 6.0, 7.0 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(3.0, result);
        }

        [Fact]
        public void SearchMinValue_Way_4_4()
        {
            double[] inputData = new double[] { -8.0, 2.0, 5.0 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(-8.0, result);
        }

        // Путь 5
        [Fact]
        public void SearchMinValue_Way_5_1()
        {
            double[] inputData = new double[] { 10.0, 5.0 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(5.0, result);
        }

        [Fact]
        public void SearchMinValue_Way_5_2()
        {
            double[] inputData = new double[] { 10.0, 3.0, 7.0, 9.0 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(3.0, result);
        }

        [Fact]
        public void SearchMinValue_Way_5_3()
        {
            double[] inputData = new double[] { 8.0, 6.0, 4.0, 2.0 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(2.0, result);
        }

        [Fact]
        public void SearchMinValue_Way_5_4()
        {
            double[] inputData = new double[] { 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(5.0, result);
        }

        [Fact]
        public void SearchMinValue_Way_5_5()
        {
            double[] inputData = new double[] { 9.0, 7.0, 5.0, 3.0, -1.0 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(-1.0, result);
        }

        [Fact]
        public void SearchMinValue_Way_5_6()
        {
            double[] inputData = new double[] { 5.0, -3.0, 2.0, -600.0, 7.0 };
            var result = Program.SearchMinValue(inputData);
            Assert.Equal(-600.0, result);
        }
    }
}