Yes.
I felt tested when my father hurt my family when he cheated on my mother.
I felt tested after he was diagnosed with cancer.
I felt tested when he died of cancer.
I felt tested when my first love left during his last week with us.
I knew I had lost when a priest came up to me while I was sitting on my porch with a cigarette, twenty minutes after he died, and I said no thank you. My mom and sister have stayed with the Catholic faith, but I left it.
It wasn't the bitterness that made me lose faith in god, I've always be fascinated with science, and readily accepted theories over the scriptures, its just that this experience shook me with a maturity I can't describe. I saw how precious and fragile life is while I took care of my dad, I saw how science and prayer could do nothing for his disease. When he was on morphine to control the pain, he usually was incoherent, but one time he told me "Don't worry Neil man, its not the end, I'll just be in a different dimension." I understood what he meant, and I looked around at how even atheists cannot deny that the universe recycles our bodies to give new life, how we have no idea what lays beyond death, nor should we care really... Its our lives we need to be focusing on, what is happening, right now.
I accepted reality, and felt that I did not need to fall back on a fable for support. I just became stronger.