The popularity of diet fads is a 'testimony to' the fact that people want a quick fix for their health and weight problems.
It is 'testimony to' her courage and persistence that she worked for so long in the face of such adversity.
There were contradictions in her 'testimony'.
(..) friend. lt's all right, Chum. l knew this would be difficult. Take one of my friends. Thanks, mate. A little chum for Chum. l'll start the testimonies. Hello. My name is Bruce. Hello, Bruce. lt has been three weeks since my last fish - on my honour, or may l be chopped up (..)2003 Finding Nemo