WordprocessingMLPackage otherPackage = WordprocessingMLPackage.load(
new java.io.File(resourceDir + "header-simple.docx"));
Alterations alterations = AlteredParts.start(thisPackage, otherPackage);
alterations.debug();
assertTrue( alterations.getPartsAdded().size()==0 ); // one of the existing header parts is re-purposed
assertTrue( alterations.getPartsModified().size()==4 );
assertTrue( alterations.getPartsDeleted().size()==4 );