If u can get 9 years installment, then really congratulation.
To test a VTEC, there is few basic step u can stick to.
1) Test the engine, test the VTEC - VTEC engine is high rev engine, try to rev the car up to 8k rpm to check whether the car is jerking or not in low end, mid end and high end. Then check does the VTEC kick in at the right time and maintain on until rev cut. (VTEC = 5800rpm by default)
2) Listen to the engine, does it come out with weird sound like knocking...
3) Check the water temp after revving up to 15mins to see is there any overheating situation.
4) After revving few times, turn off the engine and start the engine again to check whether there is difficulty of starting.
5) Check every gear including reverse, make sure they are working.
6) Check the clutch condition.
7) Check on the car body, open up the boot and check the weld marking to see whether the car has met in accident before or not.
These are just basic steps. Others more detail one u can find other more experienced people or foreman to go with u. Good luck of getting a new pet. Remember to join us after getting ur teggy.