Enhance Insert Test Cases 1, 2, 3, 4
Enhance Insert Test Cases 1, 2, 3, 4

Enhances the unit test for the insert() function's 1, 2, 3, 4 cases. The unit test now focuses more on the big picture impact of the function rather than exactly how many copies/moves/destructions/etc were made.

antverdovsky/Alg