I believe I don't have to have a test . The reality is that my prayer was answered. And again I do not believe there is any valid test for prayer.
You've just made two unevidenced claims, not very compelling.
What is the assumption of a test of prayer? I believe the assumption is that prayers will always be answered. I believe that is not the case.
Not at all, you clearly don't understand how double blind objective testing works, but it would make no assumptions at all. For example in one clinically conducted test, post op heart patients were used, the prayer was for a faster recovery and no complications. So we would already have a broad median for recovery times and complications.
The large test group were split into those prayed for and those not, and some were told whether they were being prayed for, and some were not.
NB neither those told or those not told knew of the other group. It was double blind so the testers didn't know who fell into what category until after the results were calculated.
The results showed no discernible difference in the recovery of those prayed for, and those who were not. With one anomaly, those patients told they were being prayed for faired worse on average. This anomaly might suggest the added pressure of wanting the prayers to work, unduly hampered the recovery of some patients.
One thing was unequivocal, the prayers had no discernible effect. It is also always the case that when such "powers" are exposed as false, those claiming them almost never accept this fact, but attempt to preserve the belief, by blaming the testing conditions. Of course religions have a built in safety mechanism here, in order to avoid facing such unpleasant facts, by claiming prima facie that their deity cannot be tested, how convenient.
A final point worthy of note, when I have discussed the efficacy of intercessory prayer, I have yet to encounter a theists defending it who knew about, let alone understood, what a post hoc ergo propter hoc fallacy is or seemed to understand when they were resorting to obvious selection bias.
To paraphrase the late Christopher Hitchens, you can't dent the blind bias of someone who sees a baby fall from a second storey window, bounce on a grass verge and roll through traffic, to arrive unharmed at the other side, and proclaims it a miracle, but then when a baby falls 6 inches and fatally fractures it skull on the corner of a coffee table, proclaim their deity mysterious. If they can't see that bias, it's likely nothing will help them understand, they can only get there when they abandon the inbuilt desire to preserve the belief against rational reasoned discourse.