test version range restrictions corner case

The test introduced herein illustrates a behavior that may be unexpected
to package writers.

It creates a package "pkg3" that is configured to depend on a
"dependency" which version is between 3 and 4, inclusive. Two other
packages are already present, providing "dependency" in version 2 and 5,
respectively. So, the situation looks roughly like this:

                 pkg1               pkg3                pkg2
               provides          depends on           provides
                  |            <------------>            |
version __________2____________3____________4____________5___________...

This seems to be enough to satisfy pacman when installing "pkg3". From
an iterative standpoint, this is completely logical: First, the
requirement "dependency>=3" is checked. There is a package that
satisfies this restriction, it is called "pkg2". Afterwards,
"dependency<=4" is covered in the same way by "pkg1".

Nonetheless, what a package writer intends when specifying

   depends=('dependency>=3' 'dependency<=4')

is most probably that pacman should only allow this package to be
installed when there indeed is a package present that provides a version
of "dependency" that lies _between_ 3 and 5.

Signed-off-by: Dominik Fischer <d dot f dot fischer at web dot de>
Signed-off-by: Allan McRae <allan@archlinux.org>

0 files changed, 0 insertions, 0 deletions