Currently, ConstraintVerifier penalizesBy / rewardsWith do not work with Constraint Streams that are terminated with `impact(...)`. This is probably caused by https://github.com/kiegroup/optaplanner/blob/e06abbce57ab64620c50eda9e25a3f50804f9017/optaplanner-test/src/main/java/org/optaplanner/test/impl/score/stream/DefaultSingleConstraintAssertion.java#L126-L128 , which handles ScoreimpactType.MIXED the same as ScoreImpactType.REWARD/ScoreImpactType.PENALTY.