ZCW-MacroLabs-OOP-ScientificCalculator/CoreTest.java

import static org.junit.Assert.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

/**
 * The test class CoreTest.
 *
 * @author  (your name)
 * @version (a version number or a date)
 */
public class CoreTest
{
    /**
     * Default constructor for test class CoreTest
     */
    private Core test;
    public CoreTest()
    {
    }

    /**
     * Sets up the test fixture.
     *
     * Called before every test case method.
     */
    @Before
    public void setUp()
    {
        Core test = new Core();
    }

    /**
     * Tears down the test fixture.
     *
     * Called after every test case method.
     */
    @After
    public void tearDown()
    {
    }

    @Test
    public void testAdd()
    {
        //expected
        double expected = 2.0;
        //actual
        double actual = test.add(1.0,1.0);
        //assertion
        assertEquals(expected, actual, 0.1);

    }  

    @Test
    public void testSubtract()
    {
        //expected
        double expected = 0.0;
        //actual
        double actual = test.subtract(2.0,2.0);
        //assertion
        assertEquals(expected, actual, 0.1);

    }

    @Test
    public void testDivide()
    {
        //expected
        double expected = 1.0;
        //actual
        double actual = test.divide(2.0,2.0);
        //assertion
        assertEquals(expected, actual, 0.1);
    }

    @Test
    public void testMultiply()
    {
        //expected
        double expected = 4.0;
        //actual
        double actual = test.multiply(2.0,2.0);
        //assertion
        assertEquals(expected, actual, 0.1);
    }

    @Test
    public void testsquareRoot()
    {
        //expected
        double expected = 3.0;
        //actual
        double actual = test.squareRoot(9.0);
        //assertion
        assertEquals(expected, actual, 0.1);
    }

    @Test
    public void testexponentiation()
    {
        //expected
        double expected = 4;
        //actual
        double actual = test.exponentiation(2.0,2.0);
        //assertion
        assertEquals(expected, actual, 0.1);
    }

    @Test
    public void testinverse()
    {
        //expected
        double expected = 0.25;
        //actual
        double actual = test.inverse(4.0);
        //assertion
        assertEquals(expected, actual, 0.1);
    }

    @Test
    public void testreverse()
    {
        //expected
        double expected = -4.0;
        //actual
        double actual = test.reverse(4.0);
        //assertion
        assertEquals(expected, actual, 0.1);
    }
}