The correct reported form of the sentence: He said to me, 'You will get the result of your COVID-19 test tomorrow.

He told me that I would get the result of my COVID-19 test the next day.

He said I would get the result of my COVID-19 test tomorrow.

He told me that I get the result of my COVID-19 test the next day.

He told me that I will be getting the result of my COVID-19 test.