Java_2/src/test/java/de/joethei/hs/java2/tests/GrosseZahlTest2.java

package de.joethei.hs.java2.tests;

import de.joethei.hs.java2.praktikum.praktikum1.GrosseZahl;
import org.junit.Before;
import org.junit.Test;

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

public class GrosseZahlTest2 {

    private GrosseZahl i0;
    private GrosseZahl s0;
    private GrosseZahl i1;
    private GrosseZahl s1;
    private GrosseZahl i55;
    private GrosseZahl s55;
    private GrosseZahl i60;
    private GrosseZahl s60;
    private GrosseZahl i99;
    private GrosseZahl s99;
    private GrosseZahl i100;
    private GrosseZahl s100;
    private GrosseZahl i12345;
    private GrosseZahl s12345;
    private GrosseZahl s12345678901234567890;
    private GrosseZahl s10345678901234567891;
    private GrosseZahl i283935;
    private GrosseZahl s2736;
    private GrosseZahl s2737;


    @Before
    public void setUp() {
        i0 = new GrosseZahl(0);
        s0 = new GrosseZahl("0");
        i1 = new GrosseZahl(1);
        s1 = new GrosseZahl("1");
        i55 = new GrosseZahl(55);
        s55 = new GrosseZahl("55");
        i60 = new GrosseZahl(60);
        s60 = new GrosseZahl("60");
        i99 = new GrosseZahl(99);
        s99 = new GrosseZahl("99");
        i100 = new GrosseZahl(100);
        s100 = new GrosseZahl("100");
        i12345 = new GrosseZahl(12345);
        s12345 = new GrosseZahl("12345");
        s12345678901234567890 = new GrosseZahl("12345678901234567890");
        s10345678901234567891 = new GrosseZahl("10345678901234567891");
        i283935 = new GrosseZahl("283935");
        s2736 = new GrosseZahl("2736");
        s2737 = new GrosseZahl("2737");
    }

    @Test
    public void testKonstruktor() {
        assertEquals("0", i0.toString());
        assertEquals("0", s0.toString());
        assertEquals("1", i1.toString());
        assertEquals("1", s1.toString());
        assertEquals("55", i55.toString());
        assertEquals("55", s55.toString());
        assertEquals("60", i60.toString());
        assertEquals("60", s60.toString());
        assertEquals("99", i99.toString());
        assertEquals("99", s99.toString());
        assertEquals("100", i100.toString());
        assertEquals("100", s100.toString());
        assertEquals("12345", i12345.toString());
        assertEquals("12345", s12345.toString());
        assertEquals("12345678901234567890", s12345678901234567890.toString());
        assertEquals("10345678901234567891", s10345678901234567891.toString());

    }

    @Test
    public void testLess() {
        assertTrue(!i0.less(s0));
        assertTrue(i0.less(i1));
        assertTrue(!i1.less(i0));

        assertTrue(!i55.less(s55));
        assertTrue(i55.less(i60));
        assertTrue(!i60.less(i55));

        assertTrue(!i99.less(s99));
        assertTrue(i99.less(i100));
        assertTrue(!i100.less(i99));

        assertTrue(!s12345678901234567890.less(s12345678901234567890));
        assertTrue(s10345678901234567891.less(s12345678901234567890));
        assertTrue(!s12345678901234567890.less(s10345678901234567891));
    }

    @Test
    public void testAdd() {
        assertEquals("0",i0.add(i0).toString());
        assertEquals("1",i1.add(i0).toString());
        assertEquals("1",i0.add(i1).toString());
        assertEquals("2",i1.add(s1).toString());

        assertEquals("115",i55.add(s60).toString());
        assertEquals("115",i60.add(s55).toString());

        assertEquals("115",s55.add(i60).toString());
        assertEquals("115",s60.add(i55).toString());

        assertEquals("12444",i99.add(i12345).toString());
        assertEquals("12444",i12345.add(i99).toString());

        assertEquals("22691357802469135781",s12345678901234567890.add(s10345678901234567891).toString());
        assertEquals("22691357802469135781",s10345678901234567891.add(s12345678901234567890).toString());

        GrosseZahl z = new GrosseZahl(0);
        for (int i=1; i<=125; i++)
            z=z.add(i99);
        assertEquals("12375",z.toString());
    }

    @Test
    public void testMult() {
        assertEquals("0",i0.mult(i0).toString());
        assertEquals("1",i1.mult(i1).toString());

        assertEquals("3300",i55.mult(s60).toString());
        assertEquals("3300",i60.mult(s55).toString());

        assertEquals("3300",s55.mult(i60).toString());
        assertEquals("3300",s60.mult(i55).toString());

        assertEquals("1222155",s12345.mult(s99).toString());
        assertEquals("1222155",i12345.mult(i99).toString());

        assertEquals("152407406035740740602050",s12345678901234567890.mult(s12345).toString());
        assertEquals("152407406035740740602050",s12345678901234567890.mult(i12345).toString());

        GrosseZahl z = new GrosseZahl(1);
        for (int i=1; i<=9; i++)
            z=z.mult(i99);
        assertEquals("913517247483640899",z.toString());
    }

    @Test
    public void testGGT() {
        assertEquals("23",i283935.ggT(s2737).toString());
        assertEquals("23",s2737.ggT(i283935).toString());

        assertEquals("2737",s2737.ggT(s2737).toString());
        assertEquals("1",s2736.ggT(s2737).toString());
    }
}