Can someone help me create a test class for this JAVA code

public class ManualVehicle extends Vehicle { protected int wheelcount = 1; //constructor public ManualVehicle(int time, String type, int numOfWheels) { super(time,type); setPassingTime(numOfWheels); } //set Methods public void setPassingTime(int number){ try { if (number>0){ wheelcount = number; } else { throw new InvalidNumberException("Time is out of range.");} } catch (InvalidNumberException e) {System.out.println("Revise Input (number of wheels) Values.");} } //abstract method public int getPassingTime(){return wheelcount;} public String toString(){ return this.getTimeIn()+","+this.getType()+","+wheelcount; } }