Testimony is Evidence

[Anomalocaris]

You are confusing the word evidence with the word proof.

They're kind of one in the same there buddy.

Proof  http://www.dictionary.com/browse/proof?s=t
noun  
1. evidence sufficient to establish a thing as true, or to produce belief in its truth.

Evidence   http://www.dictionary.com/browse/evidence?s=t
noun  
1. that which tends to prove or disprove something; ground for belief; proof.

Tend to do and actually having done may be one IN the same, but like studying enough to get a F and studying enough to get an A,  they are not one AND the same, although I can see how confusing F with A in your youth could have resulted in your being such as you are today.