Implemented test for filter method removeDuplicateMatches

Change-Id: I33c111ebdb146a2825e46a821499423ece2d167f
Signed-off-by: cbodenbender <Christian_bodenbender@gmx.de>
[strueber: rebased to current master]
Signed-off-by: Daniel Strueber <strueber@mathematik.uni-marburg.de>
4 files changed