I just wanted to know if there is an easy way to see if the ore is generated or should I dig around untill i find it ? ^^

Either you, or someone else has asked this before already...

 

But either way, you could make the resistance of the block high enough so you can blow the whole terrain with TNT.

An easy option for an initial test is generate it at high levels and a high frequency making it very easy to spot, then you can reduce those values once you're happy it is generating, that's what I do

just put System.out.println("My Ore was Generated"); on the gen code, if u want to make it more debugger, just put the x y z cordinates on that phrase