diff --git a/tests/test_structs.py b/tests/test_structs.py
index 058fcdf2..c6addd6d 100644
--- a/tests/test_structs.py
+++ b/tests/test_structs.py
@@ -44,6 +44,31 @@ def test_modelobj_line_label_setter():
     assert obj.line_label == "[1, 2, 3]: "
 
 
+def test_modelobj_print_line():
+    class DummyModelObj(ModelObj):
+        def gen_string(self) -> str:
+            return "dummy_object"
+
+    obj = DummyModelObj()
+
+    # Test base case with no line label and no comment
+    assert obj.print_line() == "  dummy_object"
+
+    # Test with line label only
+    obj.line_label = 1
+    assert obj.print_line() == "  1 dummy_object"
+
+    # Test with comment only
+    obj._line_label = None  # reset line_label
+    obj.comment = "# test comment"
+    assert obj.print_line() == "  dummy_object # test comment"
+
+    # Test with both line label and comment
+    obj.line_label = 1
+    obj.comment = "# test comment"
+    assert obj.print_line() == "  1 dummy_object # test comment"
+
+
 def test_action_print_line():
     action = Action(action_type="simulate", action_args={"method": "ode", "t_end": 10})
     # Basic print_line without comment or label