[paligemma] fix processor with suffix (#38365)

fix pg processor

Author: zucchini-nlp

src/transformers/models/paligemma/processing_paligemma.py

@@ -315,7 +315,8 @@ def __call__(
         return_data = {**inputs, "pixel_values": pixel_values}
 
         if return_token_type_ids:
-            labels = inputs["input_ids"].masked_fill(inputs["token_type_ids"] == 0, -100)
+            labels = np.array(inputs["input_ids"])
+            labels[np.array(inputs["token_type_ids"]) == 0] = -100
             return_data.update({"labels": labels})
 
         if return_mm_token_type_ids:

tests/models/paligemma/test_processor_paligemma.py

@@ -62,6 +62,20 @@ def test_image_seq_length(self):
         )
         self.assertEqual(len(inputs["input_ids"][0]), 112)
 
+    @require_torch
+    def test_call_with_suffix(self):
+        input_str = "lower newer"
+        suffix = "upper older longer string"
+        image_input = self.prepare_image_inputs()
+        processor = self.get_processor()
+        inputs = processor(text=input_str, images=image_input, suffix=suffix)
+        self.assertTrue("labels" in inputs)
+        self.assertEqual(len(inputs["labels"][0]), len(inputs["input_ids"][0]))
+
+        inputs = processor(text=input_str, images=image_input, suffix=suffix, return_tensors="pt")
+        self.assertTrue("labels" in inputs)
+        self.assertEqual(len(inputs["labels"][0]), len(inputs["input_ids"][0]))
+
     def test_text_with_image_tokens(self):
         image_processor = self.get_component("image_processor")
         tokenizer = self.get_component("tokenizer")