@Override
 public void project(double scaleThis, double scaleOther, VectConst other) {
   TestVect tv = (TestVect) other;
   if (!identity.equals(tv.identity)) {
     projectWasTested = true;
   }
   super.add(scaleThis, scaleOther, other);
 }
 @Override
 public void add(double scaleThis, double scaleOther, VectConst other) {
   assertSameType(other);
   super.add(scaleThis, scaleOther, other);
 }