It's no standard developing practise to test whether a relay can withstand a certain switching stress or not, because all relevant data is already in the datasheet!
Have a look, for instance, into this datasheet:

http://www.meder.com/engine/do...Series.pdf

You will find the maximum switching current for model "72" as to be 1.0A. So, if your maximum switching current is 2.6A, then it's just exeeding the maximum specification and your relay will show an early failure in the near future.

To test your relay by your circuit is a waste of time, because it only tells you whether the relay becomes suddenly destroyed or not, which is rather unlikely to happen in your case.
A typical failure of relay due to repeated overrating of maximum specifications, is a decrease of reliability, which manifests itself as an increase of contact resistance, means as increasing occurences of meta-state switchings (the contact is half-closed, respectively half-opened). Or by other words, stressing the contact beyond maximum specifications does not neccessarily result in a destroyed contact, but in a bad contact, becoming worse and worse with each additional overstressing switching event!

Standard design practise is, to choose a relay, where the switching current lies well within the maximum specification. Then, you will not need any additional testing.

Kai