Help me to create parameter test using Junit (code is already given) keep geetin

Question

Help me to create parameter test using Junit (code is already given)

keep geeting test fair.....

code

package edu.txstate.cs;

public class selectionSort2 {

       public static void main(String[] args)
       {
       int n = 20;
       int[] numArray = unsortedArray(n); // re-initialize
       printArray(numArray,n);
       selectSort2(numArray, n);
       printArray(numArray, n);
       }
         
         
       //Generate data for the selection sort array
       public static int[] unsortedArray(int n) {
       int[] a = new int[n];
       for (int index = 0; index < n; index++) {
       a[index] = (n - index);
       }
       return a;
       }
       //print the array
       public static void printArray(int[] data, int n)
       {
       for (int index = 0; index < n; index++) {
       System.out.print(data[index] + " ");
       }
       System.out.println();
       } public static void selectSort2(int[] data, int n)
       {
       for (int numUnsorted = n; numUnsorted > 0; numUnsorted--) {
       int maxIndex = 0;
       for (int index = 1; index < numUnsorted; index++) {
       if (data[maxIndex] < data[index])
       maxIndex = index;
       //swap the element
       int temp = data[numUnsorted-1];
       data[numUnsorted-1] = data[maxIndex];
       data[maxIndex] = temp;
         
       }
       }
       }

   }

package select;

import static org.junit.Assert.*;
import static org.junit.Assert.assertEquals;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

/**
* @author secc
*
*/
public class parameterTest {

   private int test;

   public parameterTest(int testParameter) {
   this.test = testParameter;
   }

   // creates the test data
   @Parameters
   public static List<Object> data() {
   Object[] data = new Object[] { 20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1};
   return Arrays.asList(data);
   }

   @Test
   public void testException() {
   selectionSort2 tests = new selectionSort2();
   int []data= {20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7,
6, 5, 4, 3, 2, 1};
       int[] expected = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20 };
   int n=20;
   assertEquals("Result", data,n);
   tests.selectSort2(expected, n);
   }

   }

ERror list

java.lang.Exception: Test class should have public zero-argument constructor
   at org.junit.internal.runners.MethodValidator.validateNoArgConstructor(MethodValidator.java:54)
   at org.junit.internal.runners.MethodValidator.validateMethodsForDefaultRunner(MethodValidator.java:39)
   at org.junit.internal.runners.TestClassRunner.validate(TestClassRunner.java:33)
   at org.junit.internal.runners.TestClassRunner.<init>(TestClassRunner.java:27)
   at org.junit.internal.runners.TestClassRunner.<init>(TestClassRunner.java:20)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:41)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:39)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:515)
   at org.junit.internal.requests.ClassRequest.buildRunner(ClassRequest.java:33)
   at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:28)
   at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.<init>(JUnit4TestReference.java:28)
   at org.eclipse.jdt.internal.junit4.runner.JUnit4TestClassReference.<init>(JUnit4TestClassReference.java:24)
   at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:40)
   at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:30)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:445)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: java.lang.NoSuchMethodException: edu.txstate.cs.parameterTest.<init>()
   at java.lang.Class.throwNoSuchMethodException(Class.java:283)
   at java.lang.Class.getConstructor(Class.java:308)
   at org.junit.internal.runners.MethodValidator.validateNoArgConstructor(MethodValidator.java:52)
   ... 18 more

Explanation / Answer

CHANGE TEST TO THIS, IT WILL WORK

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