avocado: Sanitize namespace

avocado.spec: Add Fabric dependency

It is not necessary to internally import the libraries like
we've been doing so far.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

It is a necessary dependency of avocado.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Virt test fixes

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

So that when we use io.log_line, files get written to
the appropriate test log locations.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Add aexpect, a near exact copy of the code that
has been used by virt-test for a long time. It
is a library for controlling interactive process,
similar to pexpect, but with some additional
properties:

* Programs may stay alive between tests and jobs
* More sophisticated class structure

Signed-off-by: Lucas Menghel Rodrigues

Add string manipulation APIs to the avocado.utils namespace.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Add a library for functions with the same pattern: wait for
another function to evaluate to True, for a certain amount
of time.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

So that we can do things such as killing an entire
process tree, necessary for aexpect functionality.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

So we can introduce aexpect.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

To avoid a few oddities inside avocado code.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

ctrl+c fixes

Ctrl+C was aborting the current test, but avocado would keep
looping through the list provided in the command line.

multiplexer misc commits

s/TestTimeoutError/TestInterruptedError/

Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

We frequently need to generate data for framework or
testing purposes. Introducing data_factory, a library
dedicated to this purpose.

With this, we can make other parts of avocado to use
it and supersede old functions used on this regard.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

This is the tree we've been using in several of our discussions and
algorithm simulations.

Rename them from filter_out and filter_only to filter-out and filter-only,
respectively.

Motivation: consistent with original RFC and easier to the eyes, specially when
new filter keywords get added (filter-depth, filter-value, etc).

manpage: update based on recent command line and plugin changes

avocado.plugins: Fix bug 'Namespace' object has no attribute

This syncs the manpage with the latest changes of command line options
and plugins (for example, the new multiplex).
Signed-off-by: NCleber Rosa <crosa@redhat.com>

Fix problem when running Avocado with subcommand other than run:

$ avocado plugins
Could not activate plugin 'run_vm': 'Namespace' object has no attribute 'vm'
Could not activate plugin 'json': 'Namespace' object has no attribute 'json_output'
Could not activate plugin 'xunit': 'Namespace' object has no attribute 'xunit_output'
Could not activate plugin 'journal': 'Namespace' object has no attribute 'journal'
Plugins loaded:
    datadir      - Implements the avocado 'datadir' subcommand (Enabled)
    json         - JSON output (Enabled)
    journal      - Test journal (Enabled)
    multiplexer  - Implements the avocado 'multiplex' subcommand. (Enabled)
    plugins_list - Implements the avocado 'plugins' subcommand (Enabled)
    run_vm       - Run tests on a Virtual Machine (Enabled)
    sysinfo      - Collect system information (Enabled)
    test_lister  - Implements the avocado 'list' subcommand (Enabled)
    test_runner  - Implements the avocado 'run' subcommand (Enabled)
    xunit        - xUnit output. (Enabled)
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Move options to test runner,  plugins has priority and app parser has the test runner parser

Fix functional tests regarding the changes that moves
options from the main application to the test runner (avocado run).
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Move plugins journal, json, xunit and vm inside the test runner
subcommand, now the command line options belongs to the runner,
instead of the main application.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Export the test runner parser back to the main parser,
so you can use `parser.runner` to extend it.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Add priority when loading plugins (both built-in or external).
The lowest the priority (0 by default) then earliest the plugin will
be loaded.

In the current implementation, only the runner plugin has
priority 0 and the other plug-ins are all defined as priority 3.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

test progress API: removed simplistic check_progress() idea

The check_progress() idea is too simplistic for what we aim for,
so let's remove it to prevent test writers from depending on it.

Also, rename communicate_state() to report_state().
Signed-off-by: NCleber Rosa <crosa@redhat.com>

Trivial fixes sprint12

In avocado, we use 'less' for a paginator. When one presses
'q' in the paginator, an IOError is raised (the subprocess
opened with os.popen has just quit), so let's introduce a
Paginator class, that can handle cleanly 'q' without asking
API users to handle the exception themselves.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Make it have the same meaning as with the previous
multiplex system (9 variants, loop and sync parameters
with short, medium and long variants).
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>