It is not my burden to do your apologetics for you. Your position is that Calvin and Luther claim that God is the author, creator and source of evil. Please back up your claim with clear and unambiguous quotes from either or both men's writings.
I gave you five links which detail the rebuttal.
We have discussed TULIP many times in this on-going discussion, but there is nothing in those 5 doctrines that says God creates evil because it is his will and pleasure to create evil. So please supply the details that prove that Luther and Calvin contend that God is the author of evil. That doesn't mean a dissertation. One or two quotes will do the job just fine.
But if anyone should sacrilegiously object that little praise is due to God for His goodness, which He is constrained to preserve, shall we not readily reply that His inability to do evil arises from His infinite goodness and not from the impulse of violence? Therefore if a necessity of doing well impairs not the liberty of the divine will in doing well if the devil, who cannot but do evil, nevertheless sins voluntarily; who then will assert that man sins less voluntarily, because he is under a necessity of sinning? This necessity Augustine everywhere maintains, and even when he was pressed . . . he confidently expressed himself in these terms: "By means of liberty it came to pass that man fell into sin; but now the penal depravity consequent on it, instead of liberty, has introduced necessity."
As the master Calvin says, God is unable to do evil.