When the chosen value can't be changed, bacause of some constrain. The function randomly choose diferent valueWhen the chosen value couldn't be changed, because of some constraints. The function randomly chose different value, which is not expected behavior. Now when this event occurs, the function raises ValueError exception and it's handled.
Signed-off-by: NJan Richter <jarichte@redhat.com>

The new version of CIT varianter which support constraints for combinations.
Signed-off-by: NJan Richter <jarichte@redhat.com>

I clearly missed that on 71d915dd, as there's no point of using
a locally defined "basedir" and the one from the sefltests module.
Signed-off-by: NCleber Rosa <crosa@redhat.com>

The data type expected to be given to each yield variant contains the
variant id, the "variant" itself, which should be a list of
TreeNode-like instances, and finally the applicable default search
paths.

The "variant" itself, has to be a list, given that on the very first
varianter implementation, it's supposed to contain one item for each
branch of the tree.
Signed-off-by: NCleber Rosa <crosa@redhat.com>

Which are only necessary under Python 2, and thus, not needed
anymore.
Signed-off-by: NCleber Rosa <crosa@redhat.com>

The previous working dropping Python 2, removed the explicit
requirement of the six module, but because stevedore depends
on it, it would still be installed.

Now, every trace of explicit six usage has been removed.
Signed-off-by: NCleber Rosa <crosa@redhat.com>

The Python version used to run Avocado is not being respected in this
test.
Signed-off-by: NCleber Rosa <crosa@redhat.com>

Signed-off-by: NCleber Rosa <crosa@redhat.com>

Signed-off-by: NCleber Rosa <crosa@redhat.com>

Signed-off-by: NCleber Rosa <crosa@redhat.com>

Signed-off-by: NCleber Rosa <crosa@redhat.com>

Signed-off-by: NCleber Rosa <crosa@redhat.com>

Signed-off-by: NCleber Rosa <crosa@redhat.com>

For upcoming release 64.0
Signed-off-by: NCleber Rosa <crosa@redhat.com>

The "paths" is supposed to be a list of paths and not just string.
Fortunatelly this was why this plugin actually worked, because it turned
paths into `['/', 'r', 'u', 'n']` making the root node available. Anyway
let's fix the value and use the only location this plugin puts variables
in, which is `/`.
Signed-off-by: NLukáš Doktor <ldoktor@redhat.com>

This plugin uses flat structure, there is no need to set the default
path.
Signed-off-by: NLukáš Doktor <ldoktor@redhat.com>

There was a minor bug/inconsistency in "to_str" method where
"self.parameter_path" is returned instead of list of leaves. Instead of
fixing it let's use the built-in "varianter.to_str" which uses the
"usual" implementation.
Signed-off-by: NLukáš Doktor <ldoktor@redhat.com>

Implementation of the CIT varianter optional plugin.
Signed-off-by: NAmador Pahim <amador@apahim.org>
Signed-off-by: NCleber Rosa <crosa@redhat.com>