You mean if you apply for Unemployment Benefit, now known as Jobseeker's benefit, will you be means-tested?
No, it has nothing to do with your means, it is to do with your PRSI record.
If, however, you don't have enough PRSI contributions, and won't be eligible for JB, then you may apply for Jobseeker's Allowance (the dole), which is means-tested.