Add new group collecting mechanism
diff --git a/cvp_checks/tests/test_packet_checker.py b/cvp_checks/tests/test_packet_checker.py
index 2556bcf..d85e87e 100644
--- a/cvp_checks/tests/test_packet_checker.py
+++ b/cvp_checks/tests/test_packet_checker.py
@@ -6,12 +6,10 @@
 
 @pytest.mark.parametrize(
     "group",
-    utils.get_groups(os.path.basename(__file__))
+    utils.node_groups.keys()
 )
 def test_check_package_versions(local_salt_client, group):
-    if "skipped" in group:
-        pytest.skip("skipped in config")
-    output = local_salt_client.cmd(group, 'lowpkg.list_pkgs', expr_form='pcre')
+    output = local_salt_client.cmd("L@"+','.join(utils.node_groups[group]), 'lowpkg.list_pkgs', expr_form='compound')
 
     if len(output.keys()) < 2:
         pytest.skip("Nothing to compare - only 1 node")
@@ -44,18 +42,16 @@
 
 @pytest.mark.parametrize(
     "group",
-    utils.get_groups(os.path.basename(__file__))
+    utils.node_groups.keys()
 )
 def test_check_module_versions(local_salt_client, group):
-    if "skipped" in group:
-        pytest.skip("skipped in config")
     pre_check = local_salt_client.cmd(
-        group, 'cmd.run', ['dpkg -l | grep "python-pip "'], expr_form='pcre')
+        "L@"+','.join(utils.node_groups[group]), 'cmd.run', ['dpkg -l | grep "python-pip "'], expr_form='compound')
     if pre_check.values().count('') > 0:
         pytest.skip("pip is not installed on one or more nodes")
     if len(pre_check.keys()) < 2:
         pytest.skip("Nothing to compare - only 1 node")
-    output = local_salt_client.cmd(group, 'pip.freeze', expr_form='pcre')
+    output = local_salt_client.cmd("L@"+','.join(utils.node_groups[group]), 'pip.freeze', expr_form='compound')
 
     nodes = []
     pkts_data = []