@Test
public void testSingleBond() {

    IAtomContainer container = makeSingleBond();
    // generate the single line element
    IRenderingElement root = generator.generate(container, model);
    List<IRenderingElement> elements = elementUtil.getAllSimpleElements(root);
    Assert.assertEquals(1, elements.size());
    // test that the endpoints are distinct
    LineElement line = (LineElement) elements.get(0);
    Assert.assertNotSame(0, AbstractGeneratorTest.length(line));
}