Of course... but how would test then? Shuffle N times and accept a % of
non-shuffles?

Gary

On Tue, Feb 27, 2018, 13:18 Allon Mureinik <murei...@gmail.com> wrote:

> There will still be a chance, however infinitesimal, of a failure. :-)
>
>
> On Tue, Feb 27, 2018 at 9:02 PM, Gary Gregory <garydgreg...@gmail.com>
> wrote:
>
> > Why not make the array 1000 items long?
> >
> > Gary
> >
> > On Tue, Feb 27, 2018 at 10:31 AM, Allon Mureinik <murei...@gmail.com>
> > wrote:
> >
> > > All the ArrayUtilsTest#testShuffleXYZ tests take an array, shuffle it,
> > and
> > > assert that the result isn't equal to the original array.
> > > This is usually true, but there's a small chance that the shuffled
> array
> > > will be equal to the original array, and thus the test will fail. This
> > > chance is higher for the testShuffleBoolean case where the array
> contains
> > > ten elements, but only two distinct values (true and false).
> > >
> > > I've sent a PR to remove these problematic assertions, let's see what
> the
> > > maintainers think of it:
> > > https://github.com/apache/commons-lang/pull/316
> > >
> > >
> > > On Tue, Feb 27, 2018 at 6:59 PM, Otto Fowler <ottobackwa...@gmail.com>
> > > wrote:
> > >
> > > > Note, this does pass in my personal travis:
> > > > https://travis-ci.org/ottobackwards/commons-lang/builds/346806991
> > > >
> > > >
> > > > On February 27, 2018 at 11:58:24, Otto Fowler (
> ottobackwa...@gmail.com
> > )
> > > > wrote:
> > > >
> > > > My PR is currently failing for java 9 on this test.  Anyone have any
> > idea
> > > > why?
> > > >
> > > > [INFO] Running org.apache.commons.lang3.ArrayUtilsTest
> > > > [ERROR] Tests run: 307, Failures: 1, Errors: 0, Skipped: 0, Time
> > elapsed:
> > > > 0.114 s <<< FAILURE! - in org.apache.commons.lang3.ArrayUtilsTest
> > > > [ERROR] testShuffleBoolean(org.apache.commons.lang3.ArrayUtilsTest)
> > Time
> > > > elapsed: 0.008 s <<< FAILURE!
> > > > java.lang.AssertionError
> > > > at
> > > > org.apache.commons.lang3.ArrayUtilsTest.testShuffleBoolean(
> > > > ArrayUtilsTest.java:5023)
> > > >
> > >
> >
>

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