QuickCheck failures with new 'tar' release...

[Michael Snoyman]

Hi Duncan,

Could you ping the list when the minor release is ready, so that I can bump
the version used by Stackage?

Also, a Github issue tracker for this would certainly make it easier to
know what's happening :)

Michael

On Mon, Jul 13, 2015 at 5:12 AM Duncan Coutts <duncan.coutts at googlemail.com>
wrote:

> On Thu, 2015-07-09 at 17:26 -0400, Michael Alan Dorman wrote:
> > I'm not sure if there's a more appropriate venue to bring this up; the
> > package doesn't seem to have any sort of explicit issue tracker.
> >
> > On the NixOS build servers, we're seeing across-the-board failures for
> > the 0.4.2.0 release of the 'tar' library, specifically, two properties
> > that were added in the latest release.
> >
> > It looks to me like prop_lookup is fundamentally broken---it falls over
> > in the face of a lookup for 'a/b' in a list of entries that includes
> > 'a/b/c/d', because while the library lookup function returns a match
> > including the remainder of the path as a result, the Data.List.lookup
> > that it's comparing against returns nothing.
> >
> > I don't see a way for the test as it is constituted to work reliably.
> > I'm going to guess that prop_valid suffers from a similar issue.
> >
> > Either way, it would be nice if they could either be corrected, or diked
> > out until that happens.
>
> Cheers, yes my mistake. I'll fix the test and do a minor release.
>
> Duncan
>
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