@Test public void test_massInG() { m1 = Values.massInKg(1); m2 = Values.massInG(1000); m3 = Values.massInG(500); m4 = Values.massInG(2500); m5 = Values.massInG(1500); m6 = Values.massInG(2000); assertEquals(m4, m3.mul(5)); assertEquals(m3, m4.div(5)); assertEquals(m5, m1.add(m3)); assertEquals(m6, m4.sub(m3)); assertTrue(!m6.isZero()); assertTrue("0,50".equals(m3.toString())); assertEquals(m1, m2); }