fix #4683

tests/data/test_processor.py

@@ -26,6 +26,9 @@ from llamafactory.data.processors.processor_utils import infer_seqlen
         ((2000, 3000, 1000), (400, 600)),
         ((1000, 100, 1000), (900, 100)),
         ((100, 1000, 1000), (100, 900)),
+        ((100, 500, 1000), (100, 500)),
+        ((500, 100, 1000), (500, 100)),
+        ((10, 10, 1000), (10, 10)),
     ],
 )
 def test_infer_seqlen(test_input: Tuple[int, int, int], test_output: Tuple[int, int]):