Update zero metadata API and tests

Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>

test/functional/api/cas/casadm.py

@@ -153,9 +153,9 @@ def print_version(output_format: OutputFormat = None, shortcut: bool = False):
     return output
 
 
-def zero_metadata(cache_dev: Device, shortcut: bool = False):
+def zero_metadata(cache_dev: Device, force: bool = False, shortcut: bool = False):
     output = TestRun.executor.run(
-        zero_metadata_cmd(cache_dev=cache_dev.path, shortcut=shortcut))
+        zero_metadata_cmd(cache_dev=cache_dev.path, force=force, shortcut=shortcut))
     if output.exit_code != 0:
         raise CmdException("Failed to wipe metadata.", output)
     return output

test/functional/api/cas/cli.py

@@ -115,9 +115,11 @@ def print_statistics_cmd(cache_id: str, core_id: str = None, per_io_class: bool
     return casadm_bin + command
 
 
-def zero_metadata_cmd(cache_dev: str, shortcut: bool):
+def zero_metadata_cmd(cache_dev: str, force: bool = False, shortcut: bool = False):
     command = " --zero-metadata"
     command += (" -d " if shortcut else " --device ") + cache_dev
+    if force:
+        command += (" -f" if shortcut else " --force")
     return casadm_bin + command
 
 

test/functional/api/cas/cli_help_messages.py

@@ -254,6 +254,7 @@ zero_metadata_help = [
     r"Clear metadata from caching device",
     r"Options that are valid with --zero-metadata are:",
     r"-d  --device \<DEVICE\>               Path to device on which metadata would be cleared"
+    r"-f  --force                         Ignore potential dirty data on cache device"
 ]
 
 unrecognized_stderr = [