package programmiermethoden_und_Werkzeuge;

import static org.junit.Assert.*;

import org.junit.Test;

public class TaschenrechnerTest {

	@Test
	public void testAddition() {
		int a = 3;
		int b = 4;
		int ab = a + b;
		int result = Taschenrechner.addition(a,b);
		
		assertEquals(ab, result);
	}

	@Test
	public void testMultiplikation() {
		int a = 6;
		int b = 6;
		int ab = a * b;
		int result = Taschenrechner.multiplikation(a, b);
		
		assertEquals(ab, result);
	}

	@Test
	public void testDivision() {
		int a = 14;
		int b = 7;
		int ab = a / b;
		int result = Taschenrechner.division(a, b);
		
		assertEquals(ab, result);
	}

	@Test
	public void testPotenzieren() {
		int a = 2;
		int b = 3;
		int ab = (int)Math.pow(a, b);
		int result = Taschenrechner.potenzieren(a, b);
		
		assertEquals(ab, result);
	}

	@Test
	public void testKleinerAls() {
		int a = 9;
		int b = 6;
		boolean ab = a<b;
		boolean result = Taschenrechner.kleinerAls(a, b);
		
		assertEquals(ab, result);
	}

	@Test
	public void testGroeßerAls() {
		int a = 6;
		int b = 9;
		boolean ab = a>b;
		boolean result = Taschenrechner.groeßerAls(a, b);
		
		assertEquals(ab, result);
	}

	@Test
	public void testGleich() {
		int a = 5;
		int b = 5;
		boolean ab = a==b;
		boolean result = Taschenrechner.gleich(a, b);
		
		assertEquals(ab, result);
	}

	@Test
	public void testRandomIntegerNummer() {
		int a = 2;
		int b = 10;
		int r = (int) (Math.random() * (a + 1)) + b;
		boolean result = r > a && r >= b;
		
		assertEquals(true, result);
	}

}