@Test
public void testGetPortNameIntMapOfStringString() {

	assertEquals("A", SpreadsheetUtils.getPortName(0, null));
	assertEquals("AA", SpreadsheetUtils.getPortName(26, null));
	ObjectNode configuration = JsonNodeFactory.instance.objectNode();
	ArrayNode columnNames = configuration.arrayNode();
	columnNames.addObject().put("column", "D").put("port", "delta");
	configuration.put("columnNames", columnNames);
	assertEquals("delta", SpreadsheetUtils.getPortName(3, configuration));
	assertEquals("AB", SpreadsheetUtils.getPortName(27, configuration));
}