Add test for 'version' command

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

test/functional/tests/cli/test_cli_help_and_version.py

@@ -4,7 +4,10 @@
 #
 
 import pytest
+import re
+
 from api.cas import casadm
+from api.cas.casadm_params import OutputFormat
 from api.cas.cli_help_messages import *
 from api.cas.cli_messages import check_stderr_msg, check_stdout_msg
 from core.test_run import TestRun
@@ -98,3 +101,30 @@ def test_cli_help(shortcut):
                                   + (" -H" if shortcut else " --help"))
     check_stderr_msg(output, unrecognized_stderr)
     check_stdout_msg(output, unrecognized_stdout)
+
+
+@pytest.mark.parametrize("output_format", OutputFormat)
+@pytest.mark.parametrize("shortcut", [True, False])
+def test_cli_version(shortcut, output_format):
+    """
+    title: Test for 'version' command.
+    description: Test if version displays.
+    pass_criteria:
+      - Proper OCL's components names displays in table with its versions.
+    """
+    TestRun.LOGGER.info("Check OCL's version.")
+    output = casadm.print_version(output_format, shortcut).stdout
+    TestRun.LOGGER.info(output)
+    if not names_in_output(output) or not versions_in_output(output):
+        TestRun.fail("'Version' command failed.")
+
+
+def names_in_output(output):
+    return ("CAS Cache Kernel Module" in output
+            and "CAS Disk Kernel Module" in output
+            and "CAS CLI Utility" in output)
+
+
+def versions_in_output(output):
+    version_pattern = re.compile(r"(\d){2}\.(\d){2}\.(\d){2}\.(\d){8}")
+    return len(version_pattern.findall(output)) == 3