@Test
public void testEmptyConstructor() throws Exception {
product = new Product("5678");
assertEquals("5678", product.getEan());
assertNull(product.getName());
assertNotNull(product.getNameProperty());
assertEquals(0, product.getPrice());
assertNotNull(product.getPriceProperty());
}
@Test
public void testGetEan() throws Exception {
assertEquals("1234", product.getEan());
}