3723d08022
There are some major problems with TestAdversary (based on "A Killer Adversary for Quicksort"[1] by M. D. McIlroy). See #21581 for details. Rewrite the test to closely match the version in the paper so it can be verified as correct by virtue of similarity. The only major difference between this new version and the version in the paper is that this version swaps the values directly instead of permuting an array of indices because we don't need to recover the original permutation. This new version also counts the number of calls to Less() and fails the test if there are too many. Fixes #21581. [1]: http://www.cs.dartmouth.edu/~doug/mdmspe.pdf Change-Id: Ia94b5b6d288b8fa3805a5fa27661cebbc5bad9a7 Reviewed-on: https://go-review.googlesource.com/58330 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> |
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