Question

I need a few unit tests done on my SelectionSort program in Visual Studio 2019 with MSTest. My program is below. I just need screen shots of the unit test code in Visual Studio 2019 with MSTest. Please and thank you.

so easentially I need someone to write some unit tests with my program in MSTest visual studio 2019. Then I need the unit tests supplied as answers.

using System;

namespace SelectionSortAlgorithm
{
public class SelectionSort
{
public static void Main(string[] args)
{
int[] dataSet = new int[5] { 2, 99, 27, 68, 3 }; // 5 element array initialized
int n = 5; // variable declar for elements in loop / initialized

for (int i = 0; i < n; i++) //iterates elements in dataSet
{
Console.WriteLine(dataSet[i]); // prints unsorted data
}
int sortedElements, lowestValue; //variable declar / used in next lines of code for sorting elements

// After every iteration, the unsorted array reduces by 1
for (int i = 0; i < n - 1; i++)
{

lowestValue = i; // initialize variable / used for lowest value element

// As array is being sorted, add 1 element to sorted array
for (int j = i + 1; j < n; j++)
{

if (dataSet[j] < dataSet[lowestValue])
{
lowestValue = j;

}
}
sortedElements = dataSet[lowestValue];
dataSet[lowestValue] = dataSet[i];
dataSet[i] = sortedElements;

for (int i = 0; i < n; i++)
{

Console.WriteLine(dataSet[i]);
}

}

  
}
}

Answer 1

// SelectionSort.cs
using System;

namespace SelectionSortAlgorithm
{
    public class SelectionSort
    {
        public static void sort(int[] dataSet)
        {
            int sortedElements, lowestValue; //variable declar / used in next lines of code for sorting elements
            // After every iteration, the unsorted array reduces by 1
            for (int i = 0; i < dataSet.Length - 1; i++)
            {
                lowestValue = i; // initialize variable / used for lowest value element

                // As array is being sorted, add 1 element to sorted array
                for (int j = i + 1; j < dataSet.Length; j++)
                {
                    if (dataSet[j] < dataSet[lowestValue])
                    {
                        lowestValue = j;
                    }
                }
                sortedElements = dataSet[lowestValue];
                dataSet[lowestValue] = dataSet[i];
                dataSet[i] = sortedElements;
            }
        }

        public static void Main(string[] args)
        {
            int[] dataSet = new int[5] { 2, 99, 27, 68, 3 }; // 5 element array initialized

            sort(dataSet);

            for (int i = 0; i < dataSet.Length; i++)
            {
                Console.WriteLine(dataSet[i]);
            }
        }
    }
}


// SelectionSortTest.cs
using Microsoft.VisualStudio.TestTools.UnitTesting;

[TestClass]
public class SelectionSortTest
{
    [TestMethod]
    public void testSorting()
    {
        int[] data = new int[] { 5, 3, 7, 2, 4 };

        SelectionSortAlgorithm.SelectionSort.sort(data);

        CollectionAssert.AreEqual(new int[] { 2, 3, 4, 5, 7 }, data);
    }

    [TestMethod]
    public void testBlankArray()
    {
        int[] data = new int[] { };

        SelectionSortAlgorithm.SelectionSort.sort(data);

        CollectionAssert.AreEqual(new int[] { }, data);
    }

    [TestMethod]
    public void testSingleElement()
    {
        int[] data = new int[] { 10 };

        SelectionSortAlgorithm.SelectionSort.sort(data);

        CollectionAssert.AreEqual(new int[] { 10 }, data);
    }

    [TestMethod]
    public void testWithNegativeElements()
    {
        int[] data = new int[] { -22, 10, -3, -8, 4, 9 };

        SelectionSortAlgorithm.SelectionSort.sort(data);

        CollectionAssert.AreEqual(new int[] { -22, -8, -3, 4, 9, 10 }, data);
    }
}

**************************************************
I Have changed SelectionSort class to a little, because While testing, You should have a method, That automatically does the sorting.. Earlier, Your method was taking the input from console, which is not possible in case of unit testing.

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