awakia / ruby_stable_sort / 21

93%

Pull #3

travis-ci

Make tests more reliable, especially for MRI >= 2.2

* Monkey-patch built-sorts to force them to be unstable in all Rubies.
  Some rubies (such as MRI >= 2.2) have stable sorts, which can cause
  the tests to pass erroneously.  See
  https://stackoverflow.com/a/44486562/238886 for more about sort
  stability in Ruby

* Set the random number seed in order to make tests repeatable.  Since
  the tests sort relatively short arrays, random chance would
  sometimes cause erroneous test failures.

* Some tests checked that Ruby's built-in sort is unstable.  Those
  checks were moved into their own sections and expanded.  Now every
  Ruby built-in sort method is tested for to ensure that it is
  unstable.

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