/** FAILS */
	@Test
	def void addFieldToModelAndSerializeBack_testCommentsHandling_simplestCase() {
		val sample = '''
		deepClone
		package my.home.cloners
		a.b.m.Magazine {
			// comment 1
		}
		'''
		
		val expectedModifiedSample = '''
		deepClone
		package my.home.cloners
		a.b.m.Magazine {
			// comment 1
			fooFoo
		}
		'''.toString
		
		val model = parser.parse(sample)
		val articleContainerField = (model as Body).cloners.get(0).asContainer
		articleContainerField.addFields(newArrayList("fooFoo"))  // do tested model manipulation 
		val result = model.serialize
		assertEquals(
			expectedModifiedSample,
			result
		)
	}

		deepClone
		package my.home.cloners
		a.b.m.Magazine {
			// comment 1
			fooFoo
		}

		deepClone
		package my.home.cloners
		a.b.m.Magazine {
			fooFoo
		}

public void addFields(
   ContainerType parentContainer,
   List<String> fieldsToBeAdded) 
{
   DeepCloneFactory deepCloneFactory = DeepCloneFactory.eINSTANCE;
   for (String newfieldName : fieldsToBeAdded) {
      SimpleField field = deepCloneFactory.createSimpleField();
      field.setFieldName(newfieldName);
      parentContainer.getFields().add(field);
   }
}

Foo foo = DSLFactory.eINSTANCE.createFoo();
bar.setFoo(foo);