private static boolean assertBufferEquals(WindowBuffer window, String... elements) { for (int i = 0; i < window.getSize(); i++) { ParameterValue pval = window.getHistoricValue(-window.getSize() + 1 + i); assertEquals( "Incorrect element at position " + i, elements[i], (pval != null) ? pval.getEngValue().getStringValue() : null); } return true; }