### Question:
Jcommune extends Component { public void addOrUpdateSection(PoulpeSection section) { int position = sections.indexOf(section); if (position >= 0) { sections.set(position, section); } else { sections.add(section); } } protected  Jcommune();   Jcommune(String name, String description, List<Property> defaultProperties); List<PoulpeSection> getSections(); void setSections(List<PoulpeSection> sections); boolean removeSection(PoulpeSection section); void addOrUpdateSection(PoulpeSection section); String getUrl(); void moveSection(PoulpeSection section, PoulpeSection target);  }### Answer:
@Test(dataProvider = "provideFilledJcommune") public void testAddOrUpdateSection(Jcommune jcommune) { List<PoulpeSection> sections = jcommune.getSections(); PoulpeSection exist = sections.get(1); exist.setName("exist"); jcommune.addOrUpdateSection(exist); assertEquals(sections.get(1), exist); PoulpeSection notExist = new PoulpeSection("not exist"); jcommune.addOrUpdateSection(notExist); assertEquals(sections.get(sections.size() - 1), notExist); }