As already explained, CVT has continuous gear ratios. You won't feel jerky shifts at all with a CVT.
How to test if your CVT is working properly: drive on a highway at below the speed limit, then suddenly floor the accelerator pedal to cause quick acceleration up to the maximum permitted speed. You should hear the engine sound increase in pitch and in intensity, as the engine starts to rotate faster to provide the required power.
Then release the accelerator pedal. You should stop hearing the high-pitched loud engine sound.
If your car has an RPM gauge (like what you said in the question), the test is accompanied by the RPMs going to near the redline during the test and then going back to normal after the test. However, some CVT cars may lack the RPM gauge.