test.py: pass correctly extra cmd line arguments

During rewrite --extra-scylla-cmdline-options was missed and it was not
passed to the tests that are using pytest. The issue that there were no
possibility to pass these parameters via cmd to the Scylla, while tests
were not affected because they were using the parameters from the yaml
file. This PR fixes this issue so it will be easier to modify the Scylla
start parameters without modifying code.

test.py

@@ -376,6 +376,8 @@ def run_pytest(options: argparse.Namespace) -> tuple[int, list[SimpleNamespace]]
         args.append(f'-k={" and ".join([f"not {pattern}" for pattern in options.skip_patterns])}')
     if options.k:
         args.append(f'-k={options.k}')
+    if options.extra_scylla_cmdline_options:
+        args.append(f'--extra-scylla-cmdline-options={options.extra_scylla_cmdline_options}')
     if not options.save_log_on_success:
         args.append('--allure-no-capture')
     else:

test/pylib/cpp/base.py

@@ -22,6 +22,7 @@ from scripts import coverage as coverage_script
 from test import DEBUG_MODES, TEST_DIR, TOP_SRC_DIR, path_to
 from test.pylib.resource_gather import get_resource_gather
 from test.pylib.runner import BUILD_MODE, RUN_ID, TEST_SUITE
+from test.pylib.scylla_cluster import merge_cmdline_options
 
 if TYPE_CHECKING:
     from collections.abc import Iterator, Sequence
@@ -116,7 +117,7 @@ class CppFile(pytest.File, ABC):
 
     @cached_property
     def test_args(self) -> list[str]:
-        args = [*DEFAULT_SCYLLA_ARGS, *self.suite_config.get("extra_scylla_cmdline_options", [])]
+        args = merge_cmdline_options(DEFAULT_SCYLLA_ARGS, self.suite_config.get("extra_scylla_cmdline_options", []))
         if x_log2_compaction_groups := self.config.getoption("--x-log2-compaction-groups"):
             if all_can_run_compaction_groups_except := self.suite_config.get("all_can_run_compaction_groups_except"):
                 if self.test_name not in all_can_run_compaction_groups_except:

test/pylib/runner.py

@@ -24,6 +24,7 @@ import xdist
 import yaml
 
 from test import ALL_MODES, DEBUG_MODES, TEST_RUNNER, TOP_SRC_DIR, TESTPY_PREPARED_ENVIRONMENT
+from test.pylib.scylla_cluster import merge_cmdline_options
 from test.pylib.suite.base import (
     SUITE_CONFIG_FILENAME,
     TestSuite,
@@ -347,6 +348,11 @@ class TestSuiteConfig:
             if suite is None:
                 suite = cls.from_pytest_node(node=node.parent)
         if suite:
+            extra_opts = node.config.getoption("--extra-scylla-cmdline-options")
+            if extra_opts:
+                extra_cmd = suite.cfg.get('extra_scylla_cmdline_options', [])
+                extra_cmd = merge_cmdline_options(extra_cmd, extra_opts.split())
+                suite.cfg['extra_scylla_cmdline_options'] = extra_cmd
             node.stash[TEST_SUITE] = suite
         return suite