diff --git a/libvirt/tests/src/numa/guest_numa_node_tuning/auto_memory_nodeset_placement.py b/libvirt/tests/src/numa/guest_numa_node_tuning/auto_memory_nodeset_placement.py
index abe4bf3eff..37501c940c 100644
--- a/libvirt/tests/src/numa/guest_numa_node_tuning/auto_memory_nodeset_placement.py
+++ b/libvirt/tests/src/numa/guest_numa_node_tuning/auto_memory_nodeset_placement.py
@@ -114,7 +114,7 @@ def verify_cgroup_mem_binding(test_obj):
     """
     mem_mode = test_obj.params.get('mem_mode')
     nodeset = test_obj.params.get('nodeset')
-    online_nodes = libvirt_numa.parse_numa_nodeset_to_str('x-y', test_obj.online_nodes)
+    online_nodes = libvirt_numa.convert_all_nodes_to_string(test_obj.online_nodes)
     vcpu_placement = eval(test_obj.params.get('vm_attrs')).get('placement')
     vm_pid = test_obj.vm.get_pid()
     cg = libvirt_cgroup.CgroupTest(vm_pid)
diff --git a/libvirt/tests/src/numa/guest_numa_node_tuning/memory_binding_setting.py b/libvirt/tests/src/numa/guest_numa_node_tuning/memory_binding_setting.py
index 9959238c61..54e8bfe589 100644
--- a/libvirt/tests/src/numa/guest_numa_node_tuning/memory_binding_setting.py
+++ b/libvirt/tests/src/numa/guest_numa_node_tuning/memory_binding_setting.py
@@ -179,7 +179,7 @@ def verify_cgroup(test_obj):
     """
     mem_mode = test_obj.params.get('mem_mode')
     nodeset = numa_base.convert_to_string_with_dash(test_obj.params.get('nodeset'))
-    online_nodes = libvirt_numa.parse_numa_nodeset_to_str('x-y', test_obj.online_nodes)
+    online_nodes = libvirt_numa.convert_all_nodes_to_string(test_obj.online_nodes)
     vm_pid = test_obj.vm.get_pid()
     cg = libvirt_cgroup.CgroupTest(vm_pid)
     surfix = 'emulator/cpuset.mems' if cg.is_cgroup_v2_enabled() else 'cpuset.mems'
diff --git a/libvirt/tests/src/numa/numa_memory.py b/libvirt/tests/src/numa/numa_memory.py
index b47e448a40..d7cda36b62 100644
--- a/libvirt/tests/src/numa/numa_memory.py
+++ b/libvirt/tests/src/numa/numa_memory.py
@@ -200,9 +200,7 @@ def run(test, params, env):
 
         if numa_memory.get('nodeset'):
             numa_nodeset_format = numa_memory.get('nodeset')
-            numa_memory['nodeset'] = libvirt_numa.parse_numa_nodeset_to_str(numa_nodeset_format,
-                                                                            node_list,
-                                                                            ignore_error=True)
+            numa_memory['nodeset'] = libvirt_numa.convert_all_nodes_to_string(node_list)
             used_node = cpu.cpus_parser(numa_memory['nodeset'])
             logging.debug("set node list is %s", used_node)
             if not status_error:
diff --git a/libvirt/tests/src/numa/numa_memory_migrate.py b/libvirt/tests/src/numa/numa_memory_migrate.py
index cb51637762..044190fff4 100644
--- a/libvirt/tests/src/numa/numa_memory_migrate.py
+++ b/libvirt/tests/src/numa/numa_memory_migrate.py
@@ -64,8 +64,7 @@ def mem_compare(used_node, left_node):
     try:
         if numa_memory.get('nodeset'):
             numa_nodeset_format = numa_memory.get('nodeset')
-            numa_memory['nodeset'] = libvirt_numa.parse_numa_nodeset_to_str(numa_nodeset_format,
-                                                                            node_list)
+            numa_memory['nodeset'] = libvirt_numa.convert_all_nodes_to_string(node_list)
             used_node = cpu.cpus_parser(numa_memory['nodeset'])
             logging.debug("set node list is %s", used_node)
 
diff --git a/libvirt/tests/src/virsh_cmd/domain/virsh_numatune.py b/libvirt/tests/src/virsh_cmd/domain/virsh_numatune.py
index dda489868c..b808d1ed1d 100644
--- a/libvirt/tests/src/virsh_cmd/domain/virsh_numatune.py
+++ b/libvirt/tests/src/virsh_cmd/domain/virsh_numatune.py
@@ -197,8 +197,7 @@ def dynamic_node_replacement(params, numa_info, test_obj):
     numa_nodeset_format = params.get('numa_nodeset')
     dynamic_nodeset = params.get('dynamic_nodeset', 'no') == 'yes'
     if dynamic_nodeset and 'numa_nodeset' in params:
-        params['numa_nodeset'] = libvirt_numa.parse_numa_nodeset_to_str(numa_nodeset_format,
-                                                                        node_list)
+        params['numa_nodeset'] = libvirt_numa.convert_all_nodes_to_string(node_list)
 
         logging.debug('The parameter "numa_nodeset" from config file is going to be replaced by: {} '
                       'available on this system'.format(params['numa_nodeset']))