I'm at the point where I need to test the purple roses with seed yellows. Yesterday they gave me a purple so I thought it was ok, but today those same roses gave me a white. So I'm thinking is that purple rose okay to continue with the method or no? 
as i have understood it, the testing method can yield both yellow and white roses from good purples. bad purples will only spawn whites while good purples can spawn both
The purple is good. The hybrid purple will produce yellow offspring half of the time and white offspring the other half while the regular purple will always produce white, so you only need one yellow offspring to confirm the purple is a hybrid purple. Also, you should keep the yellow offspring from the test if you haven't already tossed it. The yellow offspring is actually a hybrid yellow that you can clone like the hybrid purple and breed with itself to get the hybrid white 2. Just don't try to breed a hybrid yellow with a hybrid purple because not all of the whites from that will be the desired hybrid white 2.Oh haha sorry yes I meant that at first they gave me a yellow and today a white..So that purple isn't good?
exactly. but after a few times of trying and only getting whites i think it's safe to say it's a bad purple and get rid of it.So for testing, we have to wait and see if it ever produces a yellow? Not just throw it out the first time it produces a white?