VRRP failover testing

I have two SRX 550 in which VRRP method of failover is configured. Our client is saying for failover testing to check setup is working fine.

Can anybody help me how to perform failover testing ? Thanks in advance.

Primery FW Log:
Track route         State       Cost    Interface  Group   Cfg   Run   VR State
0.0.0.0/0           up            75    ae0.201        0   200   200   master

secondery Fw Log:

Interface     State       Group   VR state VR Mode   Timer    Type   Address
ae0.201       up              0   backup   Active      D  3.055 lcl    X.X.X.X 
                                                                vip    X.X.X.X
                                                                mas    X.X.X.X