[Generate Test] fix greedy generate test (#8293)

* fix greedy generate test

* delet ipdb

tests/test_generation_utils.py

@@ -140,10 +140,6 @@ class GenerationTesterMixin:
             # check `generate()` and `greedy_search()` are equal
             kwargs = {}
             if model.config.is_encoder_decoder:
-                encoder_outputs, input_ids, attention_mask = self._get_encoder_outputs(
-                    model, input_ids, attention_mask
-                )
-                kwargs["encoder_outputs"] = encoder_outputs
                 max_length = 4
 
             output_ids_generate = model.generate(
@@ -154,6 +150,13 @@ class GenerationTesterMixin:
                 max_length=max_length,
                 **logits_process_kwargs,
             )
+
+            if model.config.is_encoder_decoder:
+                encoder_outputs, input_ids, attention_mask = self._get_encoder_outputs(
+                    model, input_ids, attention_mask
+                )
+                kwargs["encoder_outputs"] = encoder_outputs
+
             with torch.no_grad():
                 output_ids_greedy = model.greedy_search(
                     input_ids,