The FTPTimestampParserImpl#parseTimeStamp() method is not fully testable, because it unconditionally creates Calendar items using the current time.
In order to test for leap years and DST, the test code needs to be able to set arbitrary times.
I suggest adding a package-private method that takes an additional Calendar parameter, as follows:
Calendar parseTimestamp(String timestampStr, Calendar now) throws ParseException {
// etc
This would replace the original code; the public interface would delegate to the package-private method:
public Calendar parseTimestamp(String timestampStr) throws ParseException {
Calendar now = Calendar.getInstance();
return parseTimestamp(timestampStr, now);
}
Patch to follow.
Bug
Closed
Major
FTPTimestampParserImpl#parseTimeStamp() is not fully testable
NET-188without this patch