This tests that sort(compareFn) is a stable sort.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS arr[0] is sortArr[0]
PASS arr[1] is sortArr[2]
PASS arr[2] is sortArr[1]
PASS arr[3] is sortArr[3]
PASS arr[0] is sortArr[0]
PASS arr[1] is sortArr[2]
PASS arr[2] is sortArr[1]
PASS arr[3] is sortArr[3]
PASS successfullyParsed is true

TEST COMPLETE