expectDoubleValue(3.0, effect->sample(0, 0.1, duration)->at(0));
expectDoubleValue(4.0, effect->sample(0, 0.6, duration)->at(0));
expectDoubleValue(5.0, effect->sample(0, 0.9, duration)->at(0));
expectDoubleValue(3.0, effect->sample(0, 0.1, duration)->at(0));
expectDoubleValue(4.0, effect->sample(0, 0.6, duration)->at(0));
expectDoubleValue(5.0, effect->sample(0, 0.9, duration)->at(0));