Add GenericCli utility

Signed-off-by: Andrey Berezin <a.berezin@yadro.com>

src/frostfs_testlib/hosting/config.py

@@ -10,9 +10,7 @@ class ParsedAttributes:
     def parse(cls, attributes: dict[str, Any]):
         # Pick attributes supported by the class
         field_names = set(field.name for field in fields(cls))
-        supported_attributes = {
-            key: value for key, value in attributes.items() if key in field_names
-        }
+        supported_attributes = {key: value for key, value in attributes.items() if key in field_names}
         return cls(**supported_attributes)
 
 
@@ -29,6 +27,7 @@ class CLIConfig:
     name: str
     exec_path: str
     attributes: dict[str, str] = field(default_factory=dict)
+    extra_args: list[str] = field(default_factory=list)
 
 
 @dataclass

src/frostfs_testlib/hosting/interfaces.py

@@ -54,7 +54,7 @@ class Host(ABC):
             raise ValueError(f"Unknown service name: '{service_name}'")
         return service_config
 
-    def get_cli_config(self, cli_name: str) -> CLIConfig:
+    def get_cli_config(self, cli_name: str, allow_empty: bool = False) -> CLIConfig:
         """Returns config of CLI tool with specified name.
 
         The CLI must be located on this host.
@@ -66,7 +66,7 @@ class Host(ABC):
             Config of the CLI tool.
         """
         cli_config = self._cli_config_by_name.get(cli_name)
-        if cli_config is None:
+        if cli_config is None and not allow_empty:
             raise ValueError(f"Unknown CLI name: '{cli_name}'")
         return cli_config