### Question:
CloverBuilderService extends BuilderService { @NotNull @Override public List<? extends ModuleLevelBuilder> createModuleLevelBuilders() { final List<ModuleLevelBuilder> moduleLevelBuilders = newArrayList(); moduleLevelBuilders.add(CloverJavaBuilder.getInstance()); return moduleLevelBuilders; }  @NotNull @Override List<? extends ModuleLevelBuilder> createModuleLevelBuilders();  }### Answer:
@Test public void testCreateModuleLevelBuilders() { List<? extends ModuleLevelBuilder> moduleLevelBuilders = new CloverBuilderService().createModuleLevelBuilders(); assertTrue(moduleLevelBuilders.contains(CloverJavaBuilder.getInstance())); }