237 lines
9.0 KiB
Python
237 lines
9.0 KiB
Python
# coding=utf-8
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# Copyright 2021 The HuggingFace Inc. team. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import annotations
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import unittest
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from transformers import BlenderbotConfig, BlenderbotTokenizer, is_tf_available
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from transformers.testing_utils import require_tf, require_tokenizers, slow
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from transformers.utils import cached_property
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from ...test_configuration_common import ConfigTester
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from ...test_modeling_tf_common import TFModelTesterMixin, ids_tensor
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from ...test_pipeline_mixin import PipelineTesterMixin
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if is_tf_available():
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import tensorflow as tf
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from transformers import TFAutoModelForSeq2SeqLM, TFBlenderbotForConditionalGeneration, TFBlenderbotModel
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@require_tf
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class TFBlenderbotModelTester:
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config_cls = BlenderbotConfig
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config_updates = {}
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hidden_act = "gelu"
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def __init__(
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self,
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parent,
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batch_size=13,
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seq_length=7,
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is_training=True,
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use_labels=False,
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vocab_size=99,
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hidden_size=32,
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num_hidden_layers=2,
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num_attention_heads=4,
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intermediate_size=37,
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hidden_dropout_prob=0.1,
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attention_probs_dropout_prob=0.1,
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max_position_embeddings=50,
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eos_token_id=2,
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pad_token_id=1,
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bos_token_id=0,
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):
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self.parent = parent
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self.batch_size = batch_size
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self.seq_length = seq_length
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self.is_training = is_training
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self.use_labels = use_labels
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self.vocab_size = vocab_size
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self.hidden_size = hidden_size
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self.num_hidden_layers = num_hidden_layers
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self.num_attention_heads = num_attention_heads
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self.intermediate_size = intermediate_size
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self.hidden_dropout_prob = hidden_dropout_prob
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self.attention_probs_dropout_prob = attention_probs_dropout_prob
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self.max_position_embeddings = max_position_embeddings
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self.eos_token_id = eos_token_id
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self.pad_token_id = pad_token_id
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self.bos_token_id = bos_token_id
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def prepare_config_and_inputs_for_common(self):
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input_ids = ids_tensor([self.batch_size, self.seq_length - 1], self.vocab_size)
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eos_tensor = tf.expand_dims(tf.constant([self.eos_token_id] * self.batch_size), 1)
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input_ids = tf.concat([input_ids, eos_tensor], axis=1)
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decoder_input_ids = ids_tensor([self.batch_size, self.seq_length], self.vocab_size)
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config = self.config_cls(
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vocab_size=self.vocab_size,
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d_model=self.hidden_size,
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encoder_layers=self.num_hidden_layers,
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decoder_layers=self.num_hidden_layers,
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encoder_attention_heads=self.num_attention_heads,
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decoder_attention_heads=self.num_attention_heads,
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encoder_ffn_dim=self.intermediate_size,
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decoder_ffn_dim=self.intermediate_size,
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dropout=self.hidden_dropout_prob,
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attention_dropout=self.attention_probs_dropout_prob,
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max_position_embeddings=self.max_position_embeddings,
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eos_token_ids=[2],
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bos_token_id=self.bos_token_id,
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pad_token_id=self.pad_token_id,
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decoder_start_token_id=self.pad_token_id,
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**self.config_updates,
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)
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inputs_dict = prepare_blenderbot_inputs_dict(config, input_ids, decoder_input_ids)
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return config, inputs_dict
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def check_decoder_model_past_large_inputs(self, config, inputs_dict):
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model = TFBlenderbotModel(config=config).get_decoder()
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input_ids = inputs_dict["input_ids"]
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input_ids = input_ids[:1, :]
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attention_mask = inputs_dict["attention_mask"][:1, :]
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head_mask = inputs_dict["head_mask"]
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self.batch_size = 1
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# first forward pass
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outputs = model(input_ids, attention_mask=attention_mask, head_mask=head_mask, use_cache=True)
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output, past_key_values = outputs.to_tuple()
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# create hypothetical next token and extent to next_input_ids
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next_tokens = ids_tensor((self.batch_size, 3), config.vocab_size)
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next_attn_mask = tf.cast(ids_tensor((self.batch_size, 3), 2), tf.int8)
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# append to next input_ids and
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next_input_ids = tf.concat([input_ids, next_tokens], axis=-1)
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next_attention_mask = tf.concat([attention_mask, next_attn_mask], axis=-1)
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output_from_no_past = model(next_input_ids, attention_mask=next_attention_mask)[0]
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output_from_past = model(next_tokens, attention_mask=next_attention_mask, past_key_values=past_key_values)[0]
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self.parent.assertEqual(next_tokens.shape[1], output_from_past.shape[1])
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# select random slice
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random_slice_idx = int(ids_tensor((1,), output_from_past.shape[-1]))
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output_from_no_past_slice = output_from_no_past[:, -3:, random_slice_idx]
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output_from_past_slice = output_from_past[:, :, random_slice_idx]
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# test that outputs are equal for slice
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tf.debugging.assert_near(output_from_past_slice, output_from_no_past_slice, rtol=1e-3)
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def prepare_blenderbot_inputs_dict(
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config,
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input_ids,
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decoder_input_ids,
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attention_mask=None,
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decoder_attention_mask=None,
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head_mask=None,
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decoder_head_mask=None,
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cross_attn_head_mask=None,
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):
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if attention_mask is None:
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attention_mask = tf.cast(tf.math.not_equal(input_ids, config.pad_token_id), tf.int8)
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if decoder_attention_mask is None:
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decoder_attention_mask = tf.concat(
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[
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tf.ones(decoder_input_ids[:, :1].shape, dtype=tf.int8),
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tf.cast(tf.math.not_equal(decoder_input_ids[:, 1:], config.pad_token_id), tf.int8),
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],
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axis=-1,
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)
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if head_mask is None:
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head_mask = tf.ones((config.encoder_layers, config.encoder_attention_heads))
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if decoder_head_mask is None:
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decoder_head_mask = tf.ones((config.decoder_layers, config.decoder_attention_heads))
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if cross_attn_head_mask is None:
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cross_attn_head_mask = tf.ones((config.decoder_layers, config.decoder_attention_heads))
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return {
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"input_ids": input_ids,
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"decoder_input_ids": decoder_input_ids,
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"attention_mask": attention_mask,
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"decoder_attention_mask": decoder_attention_mask,
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"head_mask": head_mask,
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"decoder_head_mask": decoder_head_mask,
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"cross_attn_head_mask": cross_attn_head_mask,
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}
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@require_tf
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class TFBlenderbotModelTest(TFModelTesterMixin, PipelineTesterMixin, unittest.TestCase):
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all_model_classes = (TFBlenderbotForConditionalGeneration, TFBlenderbotModel) if is_tf_available() else ()
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all_generative_model_classes = (TFBlenderbotForConditionalGeneration,) if is_tf_available() else ()
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pipeline_model_mapping = (
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{
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"conversational": TFBlenderbotForConditionalGeneration,
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"feature-extraction": TFBlenderbotModel,
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"summarization": TFBlenderbotForConditionalGeneration,
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"text2text-generation": TFBlenderbotForConditionalGeneration,
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"translation": TFBlenderbotForConditionalGeneration,
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}
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if is_tf_available()
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else {}
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)
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is_encoder_decoder = True
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test_pruning = False
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test_onnx = False
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def setUp(self):
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self.model_tester = TFBlenderbotModelTester(self)
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self.config_tester = ConfigTester(self, config_class=BlenderbotConfig)
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def test_config(self):
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self.config_tester.run_common_tests()
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def test_decoder_model_past_large_inputs(self):
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config_and_inputs = self.model_tester.prepare_config_and_inputs_for_common()
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self.model_tester.check_decoder_model_past_large_inputs(*config_and_inputs)
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@require_tokenizers
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@require_tf
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class TFBlenderbot400MIntegrationTests(unittest.TestCase):
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src_text = ["My friends are cool but they eat too many carbs."]
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model_name = "facebook/blenderbot-400M-distill"
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@cached_property
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def tokenizer(self):
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return BlenderbotTokenizer.from_pretrained(self.model_name)
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@cached_property
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def model(self):
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model = TFAutoModelForSeq2SeqLM.from_pretrained(self.model_name)
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return model
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@slow
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def test_generation_from_long_input(self):
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model_inputs = self.tokenizer(self.src_text, return_tensors="tf")
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generated_ids = self.model.generate(
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model_inputs.input_ids,
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)
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generated_words = self.tokenizer.batch_decode(generated_ids.numpy(), skip_special_tokens=True)[0]
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assert (
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generated_words
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== " That's unfortunate. Are they trying to lose weight or are they just trying to be healthier?"
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)
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