import org.junit.*;

import static org.junit.Assert.*;

public class BasicCalculatorTest {
    BasicCalculator kalkulator;
    @Before
    public void myTestSetUp() {
        kalkulator = new BasicCalculator();


    }

    @BeforeClass
    public static void text()
    {
        System.out.println("Test sumy");
    }
    @Test
    public void calculateSum() {
        double t1 = kalkulator.calculateSum(4, 2);
        assertEquals(6, t1, 0);
        double t2 = kalkulator.calculateSum(0, 100);
        assertEquals(100, t2, 0);
        double t3 = kalkulator.calculateSum(0, 0);
        assertEquals(0, t3, 0);
    }

    @BeforeClass
    public static void text1()
    {
        System.out.println("Test roznicy");
    }
    @Test
    public void calculateDifference() {
        double t1 = kalkulator.calculateDifference(4, 2);
        assertEquals(2, t1, 0);
        double t2 = kalkulator.calculateDifference(0, 100);
        assertEquals(-100, t2, 0);
        double t3 = kalkulator.calculateDifference(0, 0);
        assertEquals(0, t3, 0);
    }

    @BeforeClass
    public static void text2()
    {
        System.out.println("Test mnozenia");
    }
    @Test
    public void calculateMultiplication() {
        double t1 = kalkulator.calculateMultiplication(4, 2);
        assertEquals(8, t1, 0);
        double t2 = kalkulator.calculateMultiplication(0, 100);
        assertEquals(0, t2, 0);
        double t3 = kalkulator.calculateMultiplication(0, 0);
        assertEquals(0, t3, 0);
    }
    @BeforeClass
    public static void text3()
    {
        System.out.println("Test dzielenia");
    }
    @Test
    public void calculateDivision() {
        double t1 = kalkulator.calculateDivision(4, 2);
        assertEquals(2, t1, 0);
        double t2 = kalkulator.calculateDivision(10, 2);
        assertEquals(5, t2, 0);
        double t3 = kalkulator.calculateDivision(10, 1);
        assertEquals(10, t3, 0);
    }
    @BeforeClass
    public static void text4()
    {
        System.out.println("Test potegowania");
    }
    @Test
    public void calculatePow() {
        double t1 = kalkulator.calculatePow(2, 2);
        assertEquals(4, t1, 0);
        double t2 = kalkulator.calculatePow(10, 2);
        assertEquals(100, t2, 0);
        double t3 = kalkulator.calculatePow(10, 1);
        assertEquals(10, t3, 0);
    }
    @BeforeClass
    public static void text5()
    {
        System.out.println("Test pierwiastkowania");
    }
    @Test
    public void calculateSqrt() {
        double t1 = kalkulator.calculateSqrt(4);
        assertEquals(2, t1, 0);
        double t2 = kalkulator.calculateSqrt(100);
        assertEquals(10, t2, 0);
        double t3 = kalkulator.calculateSqrt(16);
        assertEquals(4, t3, 0);
    }


}