Vector3D Tests

package Tests;

import azaza.Vector3D;
import org.junit.Test;
import org.junit.runner.JUnitCore;
import org.junit.runner.Result;

import static org.junit.Assert.*;

public class Vector3DTest {

    public static void main(String[] args) {
        JUnitCore runner = new JUnitCore();
        Result result = runner.run(Vector3DTest.class);
        System.out.println("run tests: " + result.getRunCount());
        System.out.println("failed tests: " + result.getFailureCount());
        if (result.getFailureCount() != 0)
            System.out.println("fail: " + result.getFailures());
        System.out.println("ignored tests: " + result.getIgnoreCount());
        System.out.println("success: " + result.wasSuccessful());
    }

    @Test
    public void scalar() throws Exception {
        Vector3D vector1 = new Vector3D(2,4,8);
        Vector3D vector2 = new Vector3D(-3,4,5);
        assertTrue(vector1.scalar(vector2) == 50);
    }

    @Test
    public void length() throws Exception {
        Vector3D vector1 = new Vector3D(1,2,2);
        assertEquals(3, vector1.length(), 0);
    }

    @Test
    public void multiply() throws Exception {
        Vector3D vector1 = new Vector3D(4,5,6);
        double number = 2;

        Vector3D resultActual = vector1.multiply(number);
        Vector3D resultExpected = new Vector3D(8,10,12);

        assertTrue(resultActual.equals(resultExpected));
    }

    @Test
    public void add() throws Exception {
        Vector3D vector1 = new Vector3D(-6,7,0);
        Vector3D vector2 = new Vector3D(8,6,2);
        Vector3D sum = vector1.add(vector2);

        assertTrue(sum.equals(new Vector3D(2,13,2)));
    }

    @Test
    public void sub() throws Exception {
        Vector3D vector1 = new Vector3D(-6,7,0);
        Vector3D vector2 = new Vector3D(8,6,2);
        Vector3D difActual = vector1.sub(vector2);
        Vector3D difExpected = new Vector3D(-14,1,-2);

        assertTrue(difExpected.equals(difActual));
    }
}