Daniel's trial did not make him lose faith in God, rather it made him pray the more.

Daniel 6:1-28. When the decree was published, Daniel still went to the upper room and prayed louder than before. Can you see his faith? Daniel was a man of prayer; that was why they made the decree. The law of the mades and Persians in the name of the God of Isreal, he or she would be killed. That is the kind of faith we are talking about. Why was Daniel still praying? He knew his God was God that saves and rescues. We should trust in God in every trial. In the hour of adversity, we should trust in God. For the reason that Daniel trusted in God in his hour of adversity, his God became known all over, all the earth trembled before his God and his God was known as the God who rescues and delivers.