Question

1. Given the following code below:

1. public class Calculation {
2. //method that returns cube of the given number
3. public int findMax(int arr[]){
4.    int max=0;
5.    for(int i=1;i<arr.length;i++){
6.        if(max<arr[i]){
7.           max=arr[i]; }
8.     }
9.     return max;
10.   }
11. //method that returns cube of the given number
12.   public static int cube(int n){
13.        return n*n*n;
14.     }
15.   }

1. (5 points) Define the class CalculationTest a subclass of TestCase
2. (10 points) Define a setUp() method
3. (20 points) Define a test method testfindMax that exercises Calculation.findMax() in Calculation class
4. (5 points)Define a tearDown() method
5. Bonus points (20 points ~1% of total grade):
   • (5 points) Define a test suite method
   • (10 points) Define a test method testcube that exercises Calculation.cube() in Calculation class
   • (5 points) Organize your tests in your test suite (testfindMax & testcube)

The language is Java

Answer 1

Program Code Screenshot :

CalculationTest.java

CalculationTestSuite.java

Output :

Program Code to Copy

Calculation.java

public class Calculation {
    //method that returns cube of the given number
    public int findMax(int arr[]){
        int max=0;
        for(int i=1;i<arr.length;i++){
            if(max<arr[i]){
                max=arr[i]; }
        }
        return max;
    }
    //method that returns cube of the given number
    public static int cube(int n){
        return n*n*n;
    }
}

CalculationTest.java

import junit.framework.TestCase;

public class CalculationTest extends TestCase {
    Calculation calculation;

    public CalculationTest(){

    }
    @Override
    public void setUp(){
        //Create a Calculation instance
        calculation = new Calculation();
    }

    public void testfindMax(){
        //Check for the maximums
        assertEquals(calculation.findMax(new int[]{}),0);
        assertEquals(calculation.findMax(new int[]{2,8,4,3}),8);
    }

    public void testCube(){
        //Check for cube test
        assertEquals(Calculation.cube(0),0);
        assertEquals(Calculation.cube(-5),-125);
        assertEquals(Calculation.cube(6),216);
    }

    @Override
    public void tearDown(){

    }
}

CalculationTestSuite.java

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Suite;

import static org.junit.Assert.assertEquals;

@RunWith(Suite.class)

@Suite.SuiteClasses({
        CalculationTest.class
})

public class CalculationTestSuite {

    @Test
    public void testCube(){
        assertEquals(Calculation.cube(0),0);
        assertEquals(Calculation.cube(-5),-125);
        assertEquals(Calculation.cube(6),216);
    }
}