assertTrue("There should only be as many images as in the data.imagesPDI", test.size() == this.getData().imgsPDI.size());
assertTrue("There should only be as many images "+test.size()+" as in the data.imagesPDI ("+data.imgsPDI.size()+").", test.size() == this.getData().imgsPDI.size());
    public void testContainedImages(){        // Something        Set result = (Set) testFindPDIHierarchies();        assertTrue(nonNull, result != null && result.size() != 0);        // Not to much        Set test = Utils.getImagesinPID(result);        assertTrue("There should only be as many images as in the data.imagesPDI", test.size() == this.getData().imgsPDI.size());    }