In order to ensure avocado tests won't mess with the
main avocado process' environment, execute them in
forked subprocesses. If the test params have a
'timeout' attribute, use it as the timeout param
of the .join() multiprocess method, allowing the
subprocesses to be killed after timeout seconds if
they did not complete.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

In order to serialize the CmdError class, we need to
allow passing None command and CmdResult objects to
the class constructor.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

In order to make the Test class serializable, implement
__getstate__ in a way that only exports the pickleable
attributes. This will be necessary for the following
patches that will insulate individual test executions
in forked processes.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Intended to be used in the special case a test times out.
Also, explain better what a TestError is supposed to be
(right now the description causes confusion).
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado.utils: Small unused variable fixes

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

avocado.utils.remote: Add conenction timeout and attempts and remote_capable

Messages

We should use the absolute path when transfering the
file from the vm, and the basename only when assembling
the local path.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Rather than using the current working dir, which is
more fragile than we'd like due to the fact that
tests can change avocado environment (another bug
that has come to our attention).
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

We should avoid surprises made by misbehaved tests changing
the cwd directory and not setting it back, making cwd() to
point to an invalid dir.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Provide the full output of the avocado execution, so we
understand better what was the actual failure.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Yet another useful functional test for avocado functionality.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado.utils.virt: Be quiet if libvirt is not present

Add options to control remote timeout and the number of attempts
to connect.

Add 'remote_capable' feature.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Avoid to print message that libvirt is not installed,
just disable "run_vm plugin" and stop polluting the output.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

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

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

avocado.core.output: Fix incorrect exception handling in get_paginator()

Fix syslog bug

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

So we actually log the messages file.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

In very restricted systems, it will not be available.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

The actual exception we're throwing in process.find_command
is process.CmdNotFoundError.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado.core.data_dir: Expand ~ to user's home

When reading paths, expand paths that begins with ~ to
user's home directory, like shell expansion do.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

The actual exception we're throwing in process.find_command
is process.CmdNotFoundError.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado.tests: Add new test "fiotest".

avocado.test: If main test action fails, cleanup still needs to be execu...

So we don't incur in the bug we just fixed.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

This was quite the brown paper bag bug I made: If the
main action fails, we need to call cleanup() no matter
what.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

tests: Add trinity wrapper

Fix xunit bug

Trinity is a popular linux system call wrapper

http://codemonkey.org.uk/projects/trinity/

By implementing it we noticed a number of shortcomings
with avocado that have to be fixed in order to provide
a smoother developer experience.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Doublefree functional

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

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

tests.doublefree: Add 'double free' test.

Run avocado with the xunit output plugin, parsing and
verifying the sanity of the outputs.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>