avocado.test: Create the 'stdout.actual' and 'stderr.actual' files for tests

Create the file handler for both streams and connect them to
the loggers, so whatever goes on the stdout of those tests
will be logged to those files.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado/test.py

@@ -140,12 +140,19 @@ class Test(unittest.TestCase):
         self.logdir = path.init_dir(base_logdir, self.tagged_name)
         io.set_log_file_dir(self.logdir)
         self.logfile = os.path.join(self.logdir, 'debug.log')
+
+        self.stdout_file = os.path.join(self.logdir, 'stdout.actual')
+        self.stderr_file = os.path.join(self.logdir, 'stderr.actual')
+
         self.outputdir = path.init_dir(self.logdir, 'data')
         self.sysinfodir = path.init_dir(self.logdir, 'sysinfo')
         self.sysinfo_logger = sysinfo.SysInfo(basedir=self.sysinfodir)
 
         self.log = logging.getLogger("avocado.test")
 
+        self.stdout_log = logging.getLogger("avocado.test.stdout")
+        self.stderr_log = logging.getLogger("avocado.test.stderr")
+
         self.log.info('START %s', self.tagged_name)
         self.log.debug('')
         self.log.debug('Test instance parameters:')
@@ -282,6 +289,19 @@ class Test(unittest.TestCase):
         self.file_handler.setFormatter(formatter)
         self.log.addHandler(self.file_handler)
 
+        stream_fmt = '%(message)s'
+        stream_formatter = logging.Formatter(fmt=stream_fmt)
+
+        self.stdout_file_handler = logging.FileHandler(filename=self.stdout_file)
+        self.stdout_file_handler.setLevel(logging.DEBUG)
+        self.stdout_file_handler.setFormatter(stream_formatter)
+        self.stdout_log.addHandler(self.stdout_file_handler)
+
+        self.stderr_file_handler = logging.FileHandler(filename=self.stderr_file)
+        self.stderr_file_handler.setLevel(logging.DEBUG)
+        self.stderr_file_handler.setFormatter(stream_formatter)
+        self.stderr_log.addHandler(self.stderr_file_handler)
+
     def stop_logging(self):
         """
         Stop the logging activity of the test by cleaning the logger handlers.