# coding=utf-8 # Copyright 2023 The HuggingFace Inc. team. All rights reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. """Testing suite for the PyTorch InstructBLIP model.""" import inspect import tempfile import unittest import numpy as np import requests from transformers import ( CONFIG_MAPPING, InstructBlipConfig, InstructBlipProcessor, InstructBlipQFormerConfig, InstructBlipVisionConfig, ) from transformers.testing_utils import ( require_accelerate, require_bitsandbytes, require_torch, require_vision, slow, torch_device, ) from transformers.utils import is_torch_available, is_vision_available from ...generation.test_utils import GenerationTesterMixin from ...test_configuration_common import ConfigTester from ...test_modeling_common import ( ModelTesterMixin, floats_tensor, ids_tensor, random_attention_mask, ) if is_torch_available(): import torch from torch import nn from transformers import InstructBlipForConditionalGeneration, InstructBlipVisionModel if is_vision_available(): from PIL import Image class InstructBlipVisionModelTester: def __init__( self, parent, batch_size=12, image_size=30, patch_size=2, num_channels=3, is_training=True, hidden_size=32, projection_dim=32, num_hidden_layers=2, num_attention_heads=4, intermediate_size=37, dropout=0.1, attention_dropout=0.1, initializer_range=1e-10, scope=None, ): self.parent = parent self.batch_size = batch_size self.image_size = image_size self.patch_size = patch_size self.num_channels = num_channels self.is_training = is_training self.hidden_size = hidden_size self.projection_dim = projection_dim self.num_hidden_layers = num_hidden_layers self.num_attention_heads = num_attention_heads self.intermediate_size = intermediate_size self.dropout = dropout self.attention_dropout = attention_dropout self.initializer_range = initializer_range self.scope = scope # in case of a vision transformer, the seq length equals the number of patches + 1 (we add 1 for the [CLS] token) num_patches = (image_size // patch_size) ** 2 self.seq_length = num_patches + 1 def prepare_config_and_inputs(self): pixel_values = floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size]) config = self.get_config() return config, pixel_values def get_config(self): return InstructBlipVisionConfig( image_size=self.image_size, patch_size=self.patch_size, num_channels=self.num_channels, hidden_size=self.hidden_size, projection_dim=self.projection_dim, num_hidden_layers=self.num_hidden_layers, num_attention_heads=self.num_attention_heads, intermediate_size=self.intermediate_size, dropout=self.dropout, attention_dropout=self.attention_dropout, initializer_range=self.initializer_range, ) def create_and_check_model(self, config, pixel_values): model = InstructBlipVisionModel(config=config) model.to(torch_device) model.eval() with torch.no_grad(): result = model(pixel_values) # expected sequence length = num_patches + 1 (we add 1 for the [CLS] token) image_size = (self.image_size, self.image_size) patch_size = (self.patch_size, self.patch_size) num_patches = (image_size[1] // patch_size[1]) * (image_size[0] // patch_size[0]) self.parent.assertEqual(result.last_hidden_state.shape, (self.batch_size, num_patches + 1, self.hidden_size)) self.parent.assertEqual(result.pooler_output.shape, (self.batch_size, self.hidden_size)) def prepare_config_and_inputs_for_common(self): config_and_inputs = self.prepare_config_and_inputs() config, pixel_values = config_and_inputs inputs_dict = {"pixel_values": pixel_values} return config, inputs_dict @require_torch class InstructBlipVisionModelTest(ModelTesterMixin, unittest.TestCase): """ Here we also overwrite some of the tests of test_modeling_common.py, as InstructBLIP's vision encoder does not use input_ids, inputs_embeds, attention_mask and seq_length. """ all_model_classes = (InstructBlipVisionModel,) if is_torch_available() else () fx_compatible = False test_pruning = False test_resize_embeddings = False test_head_masking = False def setUp(self): self.model_tester = InstructBlipVisionModelTester(self) self.config_tester = ConfigTester( self, config_class=InstructBlipVisionConfig, has_text_modality=False, hidden_size=37 ) def test_config(self): self.config_tester.run_common_tests() @unittest.skip(reason="InstructBLIP's vision encoder does not use inputs_embeds") def test_inputs_embeds(self): pass def test_model_get_set_embeddings(self): config, _ = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: model = model_class(config) self.assertIsInstance(model.get_input_embeddings(), (nn.Module)) x = model.get_output_embeddings() self.assertTrue(x is None or isinstance(x, nn.Linear)) def test_forward_signature(self): config, _ = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: model = model_class(config) signature = inspect.signature(model.forward) # signature.parameters is an OrderedDict => so arg_names order is deterministic arg_names = [*signature.parameters.keys()] expected_arg_names = ["pixel_values"] self.assertListEqual(arg_names[:1], expected_arg_names) def test_model(self): config_and_inputs = self.model_tester.prepare_config_and_inputs() self.model_tester.create_and_check_model(*config_and_inputs) @unittest.skip(reason="InstructBlipVisionModel is an internal building block, doesn't support standalone training") def test_training(self): pass @unittest.skip(reason="InstructBlipVisionModel is an internal building block, doesn't support standalone training") def test_training_gradient_checkpointing(self): pass @unittest.skip( reason="This architecure seem to not compute gradients properly when using GC, check: https://github.com/huggingface/transformers/pull/27124" ) def test_training_gradient_checkpointing_use_reentrant(self): pass @unittest.skip( reason="This architecure seem to not compute gradients properly when using GC, check: https://github.com/huggingface/transformers/pull/27124" ) def test_training_gradient_checkpointing_use_reentrant_false(self): pass @unittest.skip(reason="InstructBlipVisionModel has no base class and is not available in MODEL_MAPPING") def test_save_load_fast_init_from_base(self): pass @unittest.skip(reason="InstructBlipVisionModel has no base class and is not available in MODEL_MAPPING") def test_save_load_fast_init_to_base(self): pass @slow def test_model_from_pretrained(self): model_name = "Salesforce/instructblip-flan-t5-xl" model = InstructBlipVisionModel.from_pretrained(model_name) self.assertIsNotNone(model) class InstructBlipQFormerModelTester: def __init__( self, parent, batch_size=12, seq_length=7, is_training=True, use_input_mask=True, use_labels=True, vocab_size=99, hidden_size=32, projection_dim=32, num_hidden_layers=2, num_attention_heads=4, intermediate_size=37, dropout=0.1, attention_dropout=0.1, max_position_embeddings=512, initializer_range=0.02, bos_token_id=0, scope=None, ): self.parent = parent self.batch_size = batch_size self.seq_length = seq_length self.is_training = is_training self.use_input_mask = use_input_mask self.use_labels = use_labels self.vocab_size = vocab_size self.hidden_size = hidden_size self.projection_dim = projection_dim self.num_hidden_layers = num_hidden_layers self.num_attention_heads = num_attention_heads self.intermediate_size = intermediate_size self.dropout = dropout self.attention_dropout = attention_dropout self.max_position_embeddings = max_position_embeddings self.initializer_range = initializer_range self.scope = scope self.bos_token_id = bos_token_id def prepare_config_and_inputs(self): input_ids = ids_tensor([self.batch_size, self.seq_length], self.vocab_size) qformer_input_ids = ids_tensor([self.batch_size, self.seq_length], self.vocab_size) input_mask = None if self.use_input_mask: input_mask = random_attention_mask([self.batch_size, self.seq_length]) qformer_attention_mask = ids_tensor([self.batch_size, self.seq_length], vocab_size=2) if input_mask is not None: batch_size, seq_length = input_mask.shape rnd_start_indices = np.random.randint(1, seq_length - 1, size=(batch_size,)) for batch_idx, start_index in enumerate(rnd_start_indices): input_mask[batch_idx, :start_index] = 1 input_mask[batch_idx, start_index:] = 0 config = self.get_config() return config, input_ids, input_mask, qformer_input_ids, qformer_attention_mask def get_config(self): return InstructBlipQFormerConfig( vocab_size=self.vocab_size, hidden_size=self.hidden_size, projection_dim=self.projection_dim, num_hidden_layers=self.num_hidden_layers, num_attention_heads=self.num_attention_heads, intermediate_size=self.intermediate_size, dropout=self.dropout, attention_dropout=self.attention_dropout, max_position_embeddings=self.max_position_embeddings, initializer_range=self.initializer_range, bos_token_id=self.bos_token_id, ) # this class is based on `OPTModelTester` found in tests/models/opt/test_modeling_opt.py class InstructBlipTextModelDecoderOnlyTester: def __init__( self, parent, batch_size=12, seq_length=7, is_training=True, use_labels=False, vocab_size=99, hidden_size=16, num_hidden_layers=2, num_attention_heads=4, intermediate_size=4, hidden_act="gelu", hidden_dropout_prob=0.1, attention_probs_dropout_prob=0.1, max_position_embeddings=20, eos_token_id=2, pad_token_id=1, bos_token_id=0, embed_dim=16, num_labels=3, word_embed_proj_dim=16, type_sequence_label_size=2, ): self.parent = parent self.batch_size = batch_size self.seq_length = seq_length self.is_training = is_training self.use_labels = use_labels self.vocab_size = vocab_size self.hidden_size = hidden_size self.num_hidden_layers = num_hidden_layers self.num_attention_heads = num_attention_heads self.intermediate_size = intermediate_size self.hidden_act = hidden_act self.hidden_dropout_prob = hidden_dropout_prob self.attention_probs_dropout_prob = attention_probs_dropout_prob self.max_position_embeddings = max_position_embeddings self.eos_token_id = eos_token_id self.pad_token_id = pad_token_id self.bos_token_id = bos_token_id self.embed_dim = embed_dim self.num_labels = num_labels self.type_sequence_label_size = type_sequence_label_size self.word_embed_proj_dim = word_embed_proj_dim self.is_encoder_decoder = False def prepare_config_and_inputs(self): config = self.get_config() input_ids = ids_tensor([self.batch_size, self.seq_length], self.vocab_size).clamp(3) input_ids[:, -1] = self.eos_token_id # Eos Token attention_mask = input_ids.ne(self.pad_token_id) return config, input_ids, attention_mask def get_config(self): return CONFIG_MAPPING["opt"]( vocab_size=self.vocab_size, hidden_size=self.hidden_size, num_hidden_layers=self.num_hidden_layers, num_attention_heads=self.num_attention_heads, ffn_dim=self.intermediate_size, dropout=self.hidden_dropout_prob, attention_dropout=self.attention_probs_dropout_prob, max_position_embeddings=self.max_position_embeddings, eos_token_id=self.eos_token_id, bos_token_id=self.bos_token_id, pad_token_id=self.pad_token_id, embed_dim=self.embed_dim, is_encoder_decoder=False, word_embed_proj_dim=self.word_embed_proj_dim, ) # this model tester uses a decoder-only language model (OPT) class InstructBlipForConditionalGenerationDecoderOnlyModelTester: def __init__( self, parent, vision_kwargs=None, qformer_kwargs=None, text_kwargs=None, is_training=True, num_query_tokens=10 ): if vision_kwargs is None: vision_kwargs = {} if qformer_kwargs is None: qformer_kwargs = {} if text_kwargs is None: text_kwargs = {} self.parent = parent self.vision_model_tester = InstructBlipVisionModelTester(parent, **vision_kwargs) self.qformer_model_tester = InstructBlipQFormerModelTester(parent, **qformer_kwargs) self.text_model_tester = InstructBlipTextModelDecoderOnlyTester(parent, **text_kwargs) self.batch_size = self.text_model_tester.batch_size # need bs for batching_equivalence test self.seq_length = self.text_model_tester.seq_length # need seq_length for common tests self.is_training = is_training self.num_query_tokens = num_query_tokens def prepare_config_and_inputs(self): _, pixel_values = self.vision_model_tester.prepare_config_and_inputs() _, _, _, qformer_input_ids, qformer_attention_mask = self.qformer_model_tester.prepare_config_and_inputs() _, input_ids, attention_mask = self.text_model_tester.prepare_config_and_inputs() config = self.get_config() return config, input_ids, attention_mask, qformer_input_ids, qformer_attention_mask, pixel_values def get_config(self): return InstructBlipConfig.from_vision_qformer_text_configs( vision_config=self.vision_model_tester.get_config(), qformer_config=self.qformer_model_tester.get_config(), text_config=self.text_model_tester.get_config(), num_query_tokens=self.num_query_tokens, ) def create_and_check_for_conditional_generation( self, config, input_ids, attention_mask, qformer_input_ids, qformer_attention_mask, pixel_values ): model = InstructBlipForConditionalGeneration(config).to(torch_device).eval() with torch.no_grad(): result = model( pixel_values, input_ids=input_ids, attention_mask=attention_mask, qformer_input_ids=qformer_input_ids, qformer_attention_mask=qformer_attention_mask, ) expected_seq_length = self.num_query_tokens + self.text_model_tester.seq_length self.parent.assertEqual( result.logits.shape, (self.vision_model_tester.batch_size, expected_seq_length, self.text_model_tester.vocab_size), ) def prepare_config_and_inputs_for_common(self): config_and_inputs = self.prepare_config_and_inputs() config, input_ids, attention_mask, qformer_input_ids, qformer_attention_mask, pixel_values = config_and_inputs inputs_dict = { "pixel_values": pixel_values, "input_ids": input_ids, "attention_mask": attention_mask, "qformer_input_ids": qformer_input_ids, "qformer_attention_mask": qformer_attention_mask, "labels": input_ids, } return config, inputs_dict @require_torch class InstructBlipForConditionalGenerationDecoderOnlyTest(ModelTesterMixin, GenerationTesterMixin, unittest.TestCase): all_model_classes = (InstructBlipForConditionalGeneration,) if is_torch_available() else () fx_compatible = False test_head_masking = False test_pruning = False test_resize_embeddings = False test_attention_outputs = False test_torchscript = False def setUp(self): self.model_tester = InstructBlipForConditionalGenerationDecoderOnlyModelTester(self) def test_for_conditional_generation(self): config_and_inputs = self.model_tester.prepare_config_and_inputs() self.model_tester.create_and_check_for_conditional_generation(*config_and_inputs) @unittest.skip(reason="Hidden_states is tested in individual model tests") def test_hidden_states_output(self): pass @unittest.skip(reason="InstructBlipForConditionalGeneration doesn't support inputs_embeds") def test_inputs_embeds(self): pass @unittest.skip(reason="Tied weights are tested in individual model tests") def test_tied_weights_keys(self): pass @unittest.skip(reason="Retain_grad is tested in individual model tests") def test_retain_grad_hidden_states_attentions(self): pass @unittest.skip(reason="InstructBlipModel does not have input/output embeddings") def test_model_get_set_embeddings(self): pass @unittest.skip(reason="There's no base InstructBlipModel") def test_save_load_fast_init_from_base(self): pass @unittest.skip(reason="There's no base InstructBlipModel") def test_save_load_fast_init_to_base(self): pass def test_forward_signature(self): config, _ = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: model = model_class(config) signature = inspect.signature(model.forward) # signature.parameters is an OrderedDict => so arg_names order is deterministic arg_names = [*signature.parameters.keys()] expected_arg_names = ["pixel_values"] self.assertListEqual(arg_names[:1], expected_arg_names) def test_load_vision_qformer_text_config(self): config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() # Save InstructBlipConfig and check if we can load InstructBlipVisionConfig from it with tempfile.TemporaryDirectory() as tmp_dir_name: config.save_pretrained(tmp_dir_name) vision_config = InstructBlipVisionConfig.from_pretrained(tmp_dir_name) self.assertDictEqual(config.vision_config.to_dict(), vision_config.to_dict()) # Save InstructBlipConfig and check if we can load InstructBlipQFormerConfig from it with tempfile.TemporaryDirectory() as tmp_dir_name: config.save_pretrained(tmp_dir_name) qformer_config = InstructBlipQFormerConfig.from_pretrained(tmp_dir_name) self.assertDictEqual(config.qformer_config.to_dict(), qformer_config.to_dict()) @slow def test_model_from_pretrained(self): model_name = "Salesforce/instructblip-flan-t5-xl" model = InstructBlipForConditionalGeneration.from_pretrained(model_name) self.assertIsNotNone(model) # We will verify our results on an image of cute cats def prepare_img(): url = "https://huggingface.co/hf-internal-testing/blip-test-image/resolve/main/demo.jpg" image = Image.open(requests.get(url, stream=True).raw) return image @require_vision @require_torch @slow class InstructBlipModelIntegrationTest(unittest.TestCase): @require_bitsandbytes @require_accelerate def test_inference_vicuna_7b(self): processor = InstructBlipProcessor.from_pretrained("Salesforce/instructblip-vicuna-7b") model = InstructBlipForConditionalGeneration.from_pretrained( "Salesforce/instructblip-vicuna-7b", load_in_8bit=True, low_cpu_mem_usage=True ) url = "https://raw.githubusercontent.com/salesforce/LAVIS/main/docs/_static/Confusing-Pictures.jpg" image = Image.open(requests.get(url, stream=True).raw).convert("RGB") prompt = "What is unusual about this image?" inputs = processor(images=image, text=prompt, return_tensors="pt").to(torch_device, torch.float16) # verify logits with torch.no_grad(): logits = model(**inputs).logits expected_slice = torch.tensor( [[-3.3926, -12.2969, 8.4922], [-5.0195, -11.9531, 8.1406], [-4.0039, -13.3594, 9.2578]], device=torch_device, ) self.assertTrue(torch.allclose(logits[0, :3, :3].float(), expected_slice, atol=1e-3)) # verify generation outputs = model.generate(**inputs, max_new_tokens=30) generated_text = processor.batch_decode(outputs, skip_special_tokens=True)[0].strip() expected_outputs = [2, 450, 22910, 9565, 310, 445, 1967, 338, 393, 263, 767, 338, 13977, 292, 22095, 373, 278, 1250, 310, 263, 13328, 20134, 29963, 1550, 372, 338, 19500, 1623, 263, 19587, 4272] # fmt: off self.assertEqual(outputs[0].tolist(), expected_outputs) self.assertEqual( generated_text, "The unusual aspect of this image is that a man is ironing clothes on the back of a yellow SUV while it is driving down a busy city", ) def test_inference_flant5_xl(self): processor = InstructBlipProcessor.from_pretrained("Salesforce/instructblip-flan-t5-xl") model = InstructBlipForConditionalGeneration.from_pretrained( "Salesforce/instructblip-flan-t5-xl", torch_dtype=torch.bfloat16, low_cpu_mem_usage=True, ).to(torch_device) url = "https://raw.githubusercontent.com/salesforce/LAVIS/main/docs/_static/Confusing-Pictures.jpg" image = Image.open(requests.get(url, stream=True).raw).convert("RGB") prompt = "What is unusual about this image?" inputs = processor(images=image, text=prompt, return_tensors="pt").to(torch_device) for k, v in inputs.items(): if torch.is_floating_point(v): inputs[k] = v.to(torch.bfloat16) outputs = model.generate( **inputs, do_sample=False, num_beams=5, max_length=256, min_length=1, top_p=0.9, repetition_penalty=1.5, length_penalty=1.0, temperature=1, ) generated_text = processor.batch_decode(outputs, skip_special_tokens=True)[0] expected_outputs = [0, 37, 1023, 9850, 7, 3, 9, 388, 3575, 53, 4954, 30, 8, 223, 13, 3, 9, 4459, 4049, 16, 8, 2214, 13, 3, 9, 3164, 690, 2815, 5, 37, 388, 19, 5119, 3, 9, 4459, 8677, 28, 3, 9, 2756, 4459, 6177, 6, 11, 3, 88, 19, 338, 46, 3575, 53, 1476, 12, 743, 112, 2491, 5, 37, 1023, 19, 7225, 788, 12, 8, 685, 24, 34, 1267, 3, 9, 388, 3575, 53, 4954, 30, 8, 223, 13, 3, 9, 4049, 16, 8, 2214, 13, 3, 9, 3164, 690, 2815, 5, 94, 19, 487, 24, 8, 388, 19, 1119, 12, 1097, 540, 57, 692, 112, 10428, 30, 8, 223, 13, 8, 4049, 6, 68, 34, 19, 92, 487, 24, 3, 88, 19, 1119, 12, 1097, 97, 57, 692, 112, 10428, 30, 8, 223, 13, 8, 4049, 16, 8, 2214, 13, 3, 9, 3164, 690, 2815, 5, 3, 13865, 13, 8, 1053, 21, 8, 388, 31, 7, 2874, 6, 34, 19, 964, 24, 3, 88, 19, 1119, 12, 1097, 97, 57, 692, 112, 10428, 30, 8, 223, 13, 8, 4049, 16, 8, 2214, 13, 3, 9, 3164, 690, 2815, 5, 1] # fmt: skip expected_outputs = [0, 37, 7225, 1023, 9850, 7, 3, 9, 388, 3575, 53, 4954, 30, 8, 223, 13, 3, 9, 4459, 4049, 16, 8, 2214, 13, 3, 9, 3164, 690, 2815, 5, 37, 388, 19, 5119, 3, 9, 4459, 8677, 28, 46, 3575, 53, 1476, 5223, 12, 34, 6, 15495, 24, 3, 88, 19, 692, 112, 293, 10428, 44, 234, 1066, 145, 338, 3, 9, 50, 1106, 3522, 144, 42, 2192, 7919, 31, 7, 5, 37, 1023, 92, 1267, 3, 9, 381, 13, 119, 3203, 16, 8, 2458, 6, 379, 14264, 6, 9256, 7, 6, 11, 11718, 7, 5, 1] # fmt: skip self.assertEqual(outputs[0].tolist(), expected_outputs) self.assertEqual( generated_text, "The unusual image depicts a man ironing clothes on the back of a yellow van in the middle of a busy city street. The man is wearing a yellow shirt with an ironing board attached to it, suggesting that he is doing his own laundry at home rather than using a laundromat or dry cleaner's. The image also shows a number of other vehicles in the background, including buses, taxis, and motorcycles.", ) def test_inference_interpolate_pos_encoding(self): processor = InstructBlipProcessor.from_pretrained("Salesforce/instructblip-flan-t5-xl") model = InstructBlipForConditionalGeneration.from_pretrained( "Salesforce/instructblip-flan-t5-xl", torch_dtype=torch.bfloat16, low_cpu_mem_usage=True, ).to(torch_device) processor.image_processor.size = {"height": 500, "width": 500} image = prepare_img() prompt = "What's in the image?" inputs = processor(images=image, text=prompt, return_tensors="pt").to(torch_device) predictions = model.generate(**inputs, interpolate_pos_encoding=True) generated_text = processor.batch_decode(predictions, skip_special_tokens=True)[0].strip() self.assertEqual( predictions[0].tolist(), [0, 37, 1023, 753, 3, 9, 2335, 3823, 30, 8, 2608, 28, 3, 9, 1782, 5, 1] ) self.assertEqual(generated_text, "The image features a woman sitting on the beach with a dog.") def test_expansion_in_processing(self): processor = InstructBlipProcessor.from_pretrained("Salesforce/instructblip-flan-t5-xl") model = InstructBlipForConditionalGeneration.from_pretrained( "Salesforce/instructblip-flan-t5-xl", torch_dtype=torch.bfloat16, low_cpu_mem_usage=True, ).to(torch_device) image = prepare_img() prompt = "What's in the image?" # Make sure we will go the legacy path by setting these args to None processor.num_query_tokens = None model.config.image_token_index = None inputs = processor(images=image, text=prompt, return_tensors="pt").to(torch_device, dtype=torch.float16) predictions = model.generate(**inputs, do_sample=False, max_new_tokens=15) generated_text = processor.batch_decode(predictions, skip_special_tokens=True)[0].strip() # Add args to the config to trigger new logic when inputs are expanded in processing file processor.num_query_tokens = model.config.num_query_tokens processor.tokenizer.add_special_tokens({"additional_special_tokens": [""]}) model.config.image_token_index = len(processor.tokenizer) - 1 model.resize_token_embeddings(processor.tokenizer.vocab_size, pad_to_multiple_of=64) # Generate again with new inputs inputs = processor(images=image, text=prompt, return_tensors="pt").to(torch_device, dtype=torch.float16) predictions_expanded = model.generate(**inputs, do_sample=False, max_new_tokens=15) generated_text_expanded = processor.batch_decode(predictions_expanded, skip_special_tokens=True)[0].strip() self.assertTrue(generated_text_expanded == generated_text)