[#338] Added parameter word_count to method get_logs

Signed-off-by: Ilyas Niyazov <i.niyazov@yadro.com>

src/frostfs_testlib/hosting/docker_host.py

@@ -250,6 +250,7 @@ class DockerHost(Host):
         unit: Optional[str] = None,
         exclude_filter: Optional[str] = None,
         priority: Optional[str] = None,
+        word_count: bool = None,
     ) -> str:
         client = self._get_docker_client()
         filtered_logs = ""

src/frostfs_testlib/hosting/interfaces.py

@@ -324,6 +324,7 @@ class Host(ABC):
         unit: Optional[str] = None,
         exclude_filter: Optional[str] = None,
         priority: Optional[str] = None,
+        word_count: bool = None,
     ) -> str:
         """Get logs from host filtered by regex.
 
@@ -334,6 +335,7 @@ class Host(ABC):
             unit: required unit.
             priority: logs level, 0 - emergency, 7 - debug. All messages with that code and higher.
             For example, if we specify the -p 2 option, journalctl will show all messages with levels 2, 1 and 0.
+            word_count: output type, expected values: lines, bytes, json
 
         Returns:
             Found entries as str if any found.