Slitherine

In dementia land we had a unit of knights fighting elephants as an overlap and wanted to continue doing so.
Placed in front of the knights was a unit of spears. The knight owner did not feel he had to test not to charge as his move forward would have left his side edge still in contact with the elephants (so ending his move in contact with the elephants) is this correct as what defines contact?

I do believe contact includes side edge to side edge.

I think contact just means touching Dino so I don't think the knights need to test.