831 lines
33 KiB
Python
831 lines
33 KiB
Python
# Copyright 2020 The HuggingFace 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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import inspect
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import tempfile
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import unittest
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import pytest
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from packaging import version
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from transformers import AutoTokenizer, BertConfig, is_torch_available
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from transformers.models.auto import get_values
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from transformers.testing_utils import (
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require_torch,
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slow,
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torch_device,
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)
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from ...generation.test_utils import GenerationTesterMixin
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from ...test_configuration_common import ConfigTester
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from ...test_modeling_common import ModelTesterMixin, floats_tensor, ids_tensor, random_attention_mask
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from ...test_pipeline_mixin import PipelineTesterMixin
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if is_torch_available():
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import torch
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from transformers import (
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MODEL_FOR_PRETRAINING_MAPPING,
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BertForMaskedLM,
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BertForMultipleChoice,
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BertForNextSentencePrediction,
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BertForPreTraining,
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BertForQuestionAnswering,
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BertForSequenceClassification,
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BertForTokenClassification,
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BertLMHeadModel,
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BertModel,
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DataCollatorWithFlattening,
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)
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class BertModelTester:
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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_input_mask=True,
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use_token_type_ids=True,
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use_labels=True,
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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_act="gelu",
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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=512,
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type_vocab_size=16,
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type_sequence_label_size=2,
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initializer_range=0.02,
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num_labels=3,
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num_choices=4,
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scope=None,
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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_input_mask = use_input_mask
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self.use_token_type_ids = use_token_type_ids
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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_act = hidden_act
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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.type_vocab_size = type_vocab_size
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self.type_sequence_label_size = type_sequence_label_size
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self.initializer_range = initializer_range
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self.num_labels = num_labels
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self.num_choices = num_choices
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self.scope = scope
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def prepare_config_and_inputs(self):
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input_ids = ids_tensor([self.batch_size, self.seq_length], self.vocab_size)
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input_mask = None
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if self.use_input_mask:
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input_mask = random_attention_mask([self.batch_size, self.seq_length])
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token_type_ids = None
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if self.use_token_type_ids:
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token_type_ids = ids_tensor([self.batch_size, self.seq_length], self.type_vocab_size)
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sequence_labels = None
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token_labels = None
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choice_labels = None
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if self.use_labels:
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sequence_labels = ids_tensor([self.batch_size], self.type_sequence_label_size)
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token_labels = ids_tensor([self.batch_size, self.seq_length], self.num_labels)
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choice_labels = ids_tensor([self.batch_size], self.num_choices)
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config = self.get_config()
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return config, input_ids, token_type_ids, input_mask, sequence_labels, token_labels, choice_labels
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def get_config(self):
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"""
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Returns a tiny configuration by default.
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"""
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return BertConfig(
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vocab_size=self.vocab_size,
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hidden_size=self.hidden_size,
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num_hidden_layers=self.num_hidden_layers,
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num_attention_heads=self.num_attention_heads,
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intermediate_size=self.intermediate_size,
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hidden_act=self.hidden_act,
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hidden_dropout_prob=self.hidden_dropout_prob,
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attention_probs_dropout_prob=self.attention_probs_dropout_prob,
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max_position_embeddings=self.max_position_embeddings,
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type_vocab_size=self.type_vocab_size,
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is_decoder=False,
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initializer_range=self.initializer_range,
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)
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def prepare_config_and_inputs_for_decoder(self):
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(
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config,
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input_ids,
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token_type_ids,
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input_mask,
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sequence_labels,
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token_labels,
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choice_labels,
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) = self.prepare_config_and_inputs()
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config.is_decoder = True
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encoder_hidden_states = floats_tensor([self.batch_size, self.seq_length, self.hidden_size])
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encoder_attention_mask = ids_tensor([self.batch_size, self.seq_length], vocab_size=2)
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return (
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config,
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input_ids,
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token_type_ids,
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input_mask,
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sequence_labels,
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token_labels,
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choice_labels,
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encoder_hidden_states,
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encoder_attention_mask,
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)
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def create_and_check_model(
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self, config, input_ids, token_type_ids, input_mask, sequence_labels, token_labels, choice_labels
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):
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model = BertModel(config=config)
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model.to(torch_device)
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model.eval()
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result = model(input_ids, attention_mask=input_mask, token_type_ids=token_type_ids)
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result = model(input_ids, token_type_ids=token_type_ids)
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result = model(input_ids)
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self.parent.assertEqual(result.last_hidden_state.shape, (self.batch_size, self.seq_length, self.hidden_size))
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self.parent.assertEqual(result.pooler_output.shape, (self.batch_size, self.hidden_size))
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def create_and_check_model_as_decoder(
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self,
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config,
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input_ids,
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token_type_ids,
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input_mask,
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sequence_labels,
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token_labels,
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choice_labels,
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encoder_hidden_states,
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encoder_attention_mask,
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):
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config.add_cross_attention = True
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model = BertModel(config)
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model.to(torch_device)
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model.eval()
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result = model(
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input_ids,
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attention_mask=input_mask,
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token_type_ids=token_type_ids,
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encoder_hidden_states=encoder_hidden_states,
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encoder_attention_mask=encoder_attention_mask,
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)
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result = model(
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input_ids,
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attention_mask=input_mask,
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token_type_ids=token_type_ids,
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encoder_hidden_states=encoder_hidden_states,
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)
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result = model(input_ids, attention_mask=input_mask, token_type_ids=token_type_ids)
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self.parent.assertEqual(result.last_hidden_state.shape, (self.batch_size, self.seq_length, self.hidden_size))
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self.parent.assertEqual(result.pooler_output.shape, (self.batch_size, self.hidden_size))
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def create_and_check_for_causal_lm(
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self,
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config,
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input_ids,
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token_type_ids,
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input_mask,
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sequence_labels,
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token_labels,
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choice_labels,
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encoder_hidden_states,
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encoder_attention_mask,
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):
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model = BertLMHeadModel(config=config)
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model.to(torch_device)
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model.eval()
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result = model(input_ids, attention_mask=input_mask, token_type_ids=token_type_ids, labels=token_labels)
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self.parent.assertEqual(result.logits.shape, (self.batch_size, self.seq_length, self.vocab_size))
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def create_and_check_for_masked_lm(
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self, config, input_ids, token_type_ids, input_mask, sequence_labels, token_labels, choice_labels
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):
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model = BertForMaskedLM(config=config)
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model.to(torch_device)
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model.eval()
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result = model(input_ids, attention_mask=input_mask, token_type_ids=token_type_ids, labels=token_labels)
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self.parent.assertEqual(result.logits.shape, (self.batch_size, self.seq_length, self.vocab_size))
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def create_and_check_model_for_causal_lm_as_decoder(
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self,
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config,
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input_ids,
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token_type_ids,
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input_mask,
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sequence_labels,
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token_labels,
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choice_labels,
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encoder_hidden_states,
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encoder_attention_mask,
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):
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config.add_cross_attention = True
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model = BertLMHeadModel(config=config)
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model.to(torch_device)
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model.eval()
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result = model(
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input_ids,
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attention_mask=input_mask,
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token_type_ids=token_type_ids,
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labels=token_labels,
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encoder_hidden_states=encoder_hidden_states,
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encoder_attention_mask=encoder_attention_mask,
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)
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result = model(
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input_ids,
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attention_mask=input_mask,
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token_type_ids=token_type_ids,
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labels=token_labels,
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encoder_hidden_states=encoder_hidden_states,
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)
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self.parent.assertEqual(result.logits.shape, (self.batch_size, self.seq_length, self.vocab_size))
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def create_and_check_decoder_model_past_large_inputs(
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self,
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config,
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input_ids,
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token_type_ids,
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input_mask,
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sequence_labels,
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token_labels,
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choice_labels,
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encoder_hidden_states,
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encoder_attention_mask,
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):
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config.is_decoder = True
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config.add_cross_attention = True
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model = BertLMHeadModel(config=config).to(torch_device).eval()
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# first forward pass
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outputs = model(
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input_ids,
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attention_mask=input_mask,
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encoder_hidden_states=encoder_hidden_states,
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encoder_attention_mask=encoder_attention_mask,
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use_cache=True,
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)
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past_key_values = outputs.past_key_values
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# create hypothetical multiple 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_mask = ids_tensor((self.batch_size, 3), vocab_size=2)
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# append to next input_ids and
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next_input_ids = torch.cat([input_ids, next_tokens], dim=-1)
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next_attention_mask = torch.cat([input_mask, next_mask], dim=-1)
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output_from_no_past = model(
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next_input_ids,
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attention_mask=next_attention_mask,
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encoder_hidden_states=encoder_hidden_states,
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encoder_attention_mask=encoder_attention_mask,
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output_hidden_states=True,
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)["hidden_states"][0]
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output_from_past = model(
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next_tokens,
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attention_mask=next_attention_mask,
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encoder_hidden_states=encoder_hidden_states,
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encoder_attention_mask=encoder_attention_mask,
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past_key_values=past_key_values,
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output_hidden_states=True,
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)["hidden_states"][0]
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# select random slice
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random_slice_idx = ids_tensor((1,), output_from_past.shape[-1]).item()
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output_from_no_past_slice = output_from_no_past[:, -3:, random_slice_idx].detach()
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output_from_past_slice = output_from_past[:, :, random_slice_idx].detach()
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self.parent.assertTrue(output_from_past_slice.shape[1] == next_tokens.shape[1])
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# test that outputs are equal for slice
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self.parent.assertTrue(torch.allclose(output_from_past_slice, output_from_no_past_slice, atol=1e-3))
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def create_and_check_for_next_sequence_prediction(
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self, config, input_ids, token_type_ids, input_mask, sequence_labels, token_labels, choice_labels
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):
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model = BertForNextSentencePrediction(config=config)
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model.to(torch_device)
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model.eval()
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result = model(
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input_ids,
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attention_mask=input_mask,
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token_type_ids=token_type_ids,
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labels=sequence_labels,
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)
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self.parent.assertEqual(result.logits.shape, (self.batch_size, 2))
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def create_and_check_for_pretraining(
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self, config, input_ids, token_type_ids, input_mask, sequence_labels, token_labels, choice_labels
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):
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model = BertForPreTraining(config=config)
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model.to(torch_device)
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model.eval()
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result = model(
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input_ids,
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attention_mask=input_mask,
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token_type_ids=token_type_ids,
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labels=token_labels,
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next_sentence_label=sequence_labels,
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)
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self.parent.assertEqual(result.prediction_logits.shape, (self.batch_size, self.seq_length, self.vocab_size))
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self.parent.assertEqual(result.seq_relationship_logits.shape, (self.batch_size, 2))
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def create_and_check_for_question_answering(
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self, config, input_ids, token_type_ids, input_mask, sequence_labels, token_labels, choice_labels
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):
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model = BertForQuestionAnswering(config=config)
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model.to(torch_device)
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model.eval()
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result = model(
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input_ids,
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attention_mask=input_mask,
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token_type_ids=token_type_ids,
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start_positions=sequence_labels,
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end_positions=sequence_labels,
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)
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self.parent.assertEqual(result.start_logits.shape, (self.batch_size, self.seq_length))
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self.parent.assertEqual(result.end_logits.shape, (self.batch_size, self.seq_length))
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def create_and_check_for_sequence_classification(
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self, config, input_ids, token_type_ids, input_mask, sequence_labels, token_labels, choice_labels
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):
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config.num_labels = self.num_labels
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model = BertForSequenceClassification(config)
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model.to(torch_device)
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model.eval()
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result = model(input_ids, attention_mask=input_mask, token_type_ids=token_type_ids, labels=sequence_labels)
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self.parent.assertEqual(result.logits.shape, (self.batch_size, self.num_labels))
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def create_and_check_for_token_classification(
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self, config, input_ids, token_type_ids, input_mask, sequence_labels, token_labels, choice_labels
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):
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config.num_labels = self.num_labels
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model = BertForTokenClassification(config=config)
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model.to(torch_device)
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model.eval()
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result = model(input_ids, attention_mask=input_mask, token_type_ids=token_type_ids, labels=token_labels)
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self.parent.assertEqual(result.logits.shape, (self.batch_size, self.seq_length, self.num_labels))
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def create_and_check_for_multiple_choice(
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self, config, input_ids, token_type_ids, input_mask, sequence_labels, token_labels, choice_labels
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):
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config.num_choices = self.num_choices
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model = BertForMultipleChoice(config=config)
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model.to(torch_device)
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model.eval()
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multiple_choice_inputs_ids = input_ids.unsqueeze(1).expand(-1, self.num_choices, -1).contiguous()
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multiple_choice_token_type_ids = token_type_ids.unsqueeze(1).expand(-1, self.num_choices, -1).contiguous()
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multiple_choice_input_mask = input_mask.unsqueeze(1).expand(-1, self.num_choices, -1).contiguous()
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result = model(
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multiple_choice_inputs_ids,
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attention_mask=multiple_choice_input_mask,
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token_type_ids=multiple_choice_token_type_ids,
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labels=choice_labels,
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)
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self.parent.assertEqual(result.logits.shape, (self.batch_size, self.num_choices))
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def prepare_config_and_inputs_for_common(self):
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config_and_inputs = self.prepare_config_and_inputs()
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(
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config,
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input_ids,
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token_type_ids,
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input_mask,
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sequence_labels,
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token_labels,
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choice_labels,
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) = config_and_inputs
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inputs_dict = {"input_ids": input_ids, "token_type_ids": token_type_ids, "attention_mask": input_mask}
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return config, inputs_dict
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|
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|
@require_torch
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class BertModelTest(ModelTesterMixin, GenerationTesterMixin, PipelineTesterMixin, unittest.TestCase):
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|
all_model_classes = (
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(
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BertModel,
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BertLMHeadModel,
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BertForMaskedLM,
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BertForMultipleChoice,
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BertForNextSentencePrediction,
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BertForPreTraining,
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BertForQuestionAnswering,
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BertForSequenceClassification,
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BertForTokenClassification,
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)
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if is_torch_available()
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else ()
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)
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pipeline_model_mapping = (
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{
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"feature-extraction": BertModel,
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"fill-mask": BertForMaskedLM,
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"question-answering": BertForQuestionAnswering,
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"text-classification": BertForSequenceClassification,
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"text-generation": BertLMHeadModel,
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"token-classification": BertForTokenClassification,
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"zero-shot": BertForSequenceClassification,
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}
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if is_torch_available()
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else {}
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)
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fx_compatible = False # won't be maintained
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model_split_percents = [0.5, 0.8, 0.9]
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# special case for ForPreTraining model
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def _prepare_for_class(self, inputs_dict, model_class, return_labels=False):
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inputs_dict = super()._prepare_for_class(inputs_dict, model_class, return_labels=return_labels)
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if return_labels:
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if model_class in get_values(MODEL_FOR_PRETRAINING_MAPPING):
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inputs_dict["labels"] = torch.zeros(
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(self.model_tester.batch_size, self.model_tester.seq_length), dtype=torch.long, device=torch_device
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|
)
|
|
inputs_dict["next_sentence_label"] = torch.zeros(
|
|
self.model_tester.batch_size, dtype=torch.long, device=torch_device
|
|
)
|
|
return inputs_dict
|
|
|
|
# Overwriting to add `is_decoder` flag
|
|
def prepare_config_and_inputs_for_generate(self, batch_size=2):
|
|
config, inputs = super().prepare_config_and_inputs_for_generate(batch_size)
|
|
config.is_decoder = True
|
|
return config, inputs
|
|
|
|
def setUp(self):
|
|
self.model_tester = BertModelTester(self)
|
|
self.config_tester = ConfigTester(self, config_class=BertConfig, hidden_size=37)
|
|
|
|
def test_config(self):
|
|
self.config_tester.run_common_tests()
|
|
|
|
def test_model(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
|
self.model_tester.create_and_check_model(*config_and_inputs)
|
|
|
|
def test_model_various_embeddings(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
|
for type in ["absolute", "relative_key", "relative_key_query"]:
|
|
config_and_inputs[0].position_embedding_type = type
|
|
config_and_inputs[0]._attn_implementation = "eager"
|
|
self.model_tester.create_and_check_model(*config_and_inputs)
|
|
|
|
def test_model_3d_mask_shapes(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
|
# manipulate input_mask
|
|
config_and_inputs = list(config_and_inputs)
|
|
batch_size, seq_length = config_and_inputs[3].shape
|
|
config_and_inputs[3] = random_attention_mask([batch_size, seq_length, seq_length])
|
|
self.model_tester.create_and_check_model(*config_and_inputs)
|
|
|
|
def test_model_as_decoder(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs_for_decoder()
|
|
self.model_tester.create_and_check_model_as_decoder(*config_and_inputs)
|
|
|
|
def test_model_as_decoder_with_default_input_mask(self):
|
|
(
|
|
config,
|
|
input_ids,
|
|
token_type_ids,
|
|
input_mask,
|
|
sequence_labels,
|
|
token_labels,
|
|
choice_labels,
|
|
encoder_hidden_states,
|
|
encoder_attention_mask,
|
|
) = self.model_tester.prepare_config_and_inputs_for_decoder()
|
|
|
|
input_mask = None
|
|
|
|
self.model_tester.create_and_check_model_as_decoder(
|
|
config,
|
|
input_ids,
|
|
token_type_ids,
|
|
input_mask,
|
|
sequence_labels,
|
|
token_labels,
|
|
choice_labels,
|
|
encoder_hidden_states,
|
|
encoder_attention_mask,
|
|
)
|
|
|
|
def test_model_as_decoder_with_3d_input_mask(self):
|
|
(
|
|
config,
|
|
input_ids,
|
|
token_type_ids,
|
|
input_mask,
|
|
sequence_labels,
|
|
token_labels,
|
|
choice_labels,
|
|
encoder_hidden_states,
|
|
encoder_attention_mask,
|
|
) = self.model_tester.prepare_config_and_inputs_for_decoder()
|
|
|
|
batch_size, seq_length = input_mask.shape
|
|
input_mask = random_attention_mask([batch_size, seq_length, seq_length])
|
|
batch_size, seq_length = encoder_attention_mask.shape
|
|
encoder_attention_mask = random_attention_mask([batch_size, seq_length, seq_length])
|
|
|
|
self.model_tester.create_and_check_model_as_decoder(
|
|
config,
|
|
input_ids,
|
|
token_type_ids,
|
|
input_mask,
|
|
sequence_labels,
|
|
token_labels,
|
|
choice_labels,
|
|
encoder_hidden_states,
|
|
encoder_attention_mask,
|
|
)
|
|
|
|
def test_for_causal_lm(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs_for_decoder()
|
|
self.model_tester.create_and_check_for_causal_lm(*config_and_inputs)
|
|
|
|
def test_for_masked_lm(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
|
self.model_tester.create_and_check_for_masked_lm(*config_and_inputs)
|
|
|
|
def test_for_causal_lm_decoder(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs_for_decoder()
|
|
self.model_tester.create_and_check_model_for_causal_lm_as_decoder(*config_and_inputs)
|
|
|
|
def test_decoder_model_past_with_large_inputs(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs_for_decoder()
|
|
self.model_tester.create_and_check_decoder_model_past_large_inputs(*config_and_inputs)
|
|
|
|
def test_decoder_model_past_with_large_inputs_relative_pos_emb(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs_for_decoder()
|
|
config_and_inputs[0].position_embedding_type = "relative_key"
|
|
config_and_inputs[0]._attn_implementation = "eager"
|
|
self.model_tester.create_and_check_decoder_model_past_large_inputs(*config_and_inputs)
|
|
|
|
def test_for_multiple_choice(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
|
self.model_tester.create_and_check_for_multiple_choice(*config_and_inputs)
|
|
|
|
def test_for_next_sequence_prediction(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
|
self.model_tester.create_and_check_for_next_sequence_prediction(*config_and_inputs)
|
|
|
|
def test_for_pretraining(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
|
self.model_tester.create_and_check_for_pretraining(*config_and_inputs)
|
|
|
|
def test_for_question_answering(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
|
self.model_tester.create_and_check_for_question_answering(*config_and_inputs)
|
|
|
|
def test_for_sequence_classification(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
|
self.model_tester.create_and_check_for_sequence_classification(*config_and_inputs)
|
|
|
|
def test_for_token_classification(self):
|
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
|
self.model_tester.create_and_check_for_token_classification(*config_and_inputs)
|
|
|
|
@slow
|
|
def test_model_from_pretrained(self):
|
|
model_name = "google-bert/bert-base-uncased"
|
|
model = BertModel.from_pretrained(model_name)
|
|
self.assertIsNotNone(model)
|
|
|
|
def attention_mask_padding_matches_padding_free_with_position_ids(
|
|
self, attn_implementation: str, fa_kwargs: bool = False
|
|
):
|
|
"""
|
|
Overwritten to account for the embeddings that rely on position ids.
|
|
"""
|
|
if not self.has_attentions:
|
|
self.skipTest(reason="Model architecture does not support attentions")
|
|
|
|
max_new_tokens = 30
|
|
support_flag = {
|
|
"sdpa": "_supports_sdpa",
|
|
"flash_attention_2": "_supports_flash_attn",
|
|
"flash_attention_3": "_supports_flash_attn",
|
|
}
|
|
|
|
for model_class in self.all_generative_model_classes:
|
|
if attn_implementation != "eager" and not getattr(model_class, support_flag[attn_implementation]):
|
|
self.skipTest(f"{model_class.__name__} does not support {attn_implementation}")
|
|
|
|
# can't infer if new attn mask API is supported by assume that only model with attention backend support it
|
|
if not model_class._supports_attention_backend:
|
|
self.skipTest(f"{model_class.__name__} does not support new attention mask API")
|
|
|
|
if model_class._is_stateful: # non-transformer models most probably have no packing support
|
|
self.skipTest(f"{model_class.__name__} doesn't support packing!")
|
|
|
|
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
|
|
if config.is_encoder_decoder:
|
|
self.skipTest("Model is an encoder-decoder")
|
|
|
|
if 0 not in inputs_dict.get("attention_mask", []) or "attention_mask" not in inputs_dict:
|
|
self.skipTest("Model dummy inputs should contain padding in their attention mask")
|
|
|
|
if "input_ids" not in inputs_dict or inputs_dict["input_ids"].ndim != 2:
|
|
self.skipTest("Model dummy inputs should contain text input ids")
|
|
|
|
# make sure that all models have enough positions for generation
|
|
dummy_input_ids = inputs_dict["input_ids"]
|
|
if hasattr(config, "max_position_embeddings"):
|
|
config.max_position_embeddings = max_new_tokens + dummy_input_ids.shape[1] + 1
|
|
|
|
model = model_class(config)
|
|
if "position_ids" not in inspect.signature(model.forward).parameters:
|
|
self.skipTest("Model does not support position_ids")
|
|
|
|
if (not fa_kwargs) and "position_ids" not in inspect.signature(model.forward).parameters:
|
|
continue # this model doesn't accept position ids as input
|
|
|
|
with tempfile.TemporaryDirectory() as tmpdirname:
|
|
model.save_pretrained(tmpdirname)
|
|
|
|
# Drop all keys except for the minimal set. Hard to manipulate with multimodals/head_mask/etc
|
|
inputs_dict = {k: v for k, v in inputs_dict.items() if k in ["input_ids", "attention_mask"]}
|
|
|
|
# Ensure left padding, to adapt for some models
|
|
if 0 in inputs_dict["attention_mask"][:, -1]:
|
|
inputs_dict["attention_mask"] = inputs_dict["attention_mask"].flip(1)
|
|
dummy_attention_mask = inputs_dict["attention_mask"]
|
|
dummy_input_ids[~dummy_attention_mask.bool()] = config.get_text_config().pad_token_id
|
|
|
|
# Main difference to other models, we need to prepare position ids according to the attention mask
|
|
# as we use it to extract embeddings that rely on the correct position - naively increasing sequences do
|
|
# not suffice anymore atp. The solution here calculates an increasing sequences for all 1s and puts 0s else.
|
|
inputs_dict["position_ids"] = ((inputs_dict["attention_mask"] == 1).long().cumsum(dim=1) - 1) * (
|
|
inputs_dict["attention_mask"] == 1
|
|
).long()
|
|
|
|
model = (
|
|
model_class.from_pretrained(
|
|
tmpdirname,
|
|
dtype=torch.bfloat16,
|
|
attn_implementation=attn_implementation,
|
|
)
|
|
.to(torch_device)
|
|
.eval()
|
|
)
|
|
|
|
if fa_kwargs:
|
|
# flatten
|
|
features = [
|
|
{"input_ids": i[a.bool()].tolist()} for i, a in zip(dummy_input_ids, dummy_attention_mask)
|
|
]
|
|
|
|
# add position_ids + fa_kwargs
|
|
data_collator = DataCollatorWithFlattening(return_tensors="pt", return_flash_attn_kwargs=True)
|
|
batch = data_collator(features)
|
|
padfree_inputs_dict = {
|
|
k: t.to(torch_device) if torch.is_tensor(t) else t for k, t in batch.items()
|
|
}
|
|
else:
|
|
# create packed position_ids
|
|
position_ids = (
|
|
torch.cat([torch.arange(length) for length in dummy_attention_mask.sum(1).tolist()])
|
|
.long()
|
|
.unsqueeze(0)
|
|
.to(torch_device)
|
|
)
|
|
padfree_inputs_dict = {
|
|
"input_ids": dummy_input_ids[dummy_attention_mask.bool()].unsqueeze(0),
|
|
"position_ids": position_ids,
|
|
}
|
|
|
|
# We need to do simple forward without cache in order to trigger packed SDPA/flex/eager attention path
|
|
res_padded = model(**inputs_dict, use_cache=False)
|
|
res_padfree = model(**padfree_inputs_dict, use_cache=False)
|
|
|
|
logits_padded = res_padded.logits[dummy_attention_mask.bool()]
|
|
logits_padfree = res_padfree.logits[0]
|
|
|
|
# acceptable numerical instability
|
|
tol = torch.finfo(torch.bfloat16).eps
|
|
torch.testing.assert_close(logits_padded, logits_padfree, rtol=tol, atol=tol)
|
|
|
|
|
|
@require_torch
|
|
class BertModelIntegrationTest(unittest.TestCase):
|
|
@slow
|
|
def test_inference_no_head_absolute_embedding(self):
|
|
model = BertModel.from_pretrained("google-bert/bert-base-uncased")
|
|
input_ids = torch.tensor([[0, 345, 232, 328, 740, 140, 1695, 69, 6078, 1588, 2]])
|
|
attention_mask = torch.tensor([[0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]])
|
|
with torch.no_grad():
|
|
output = model(input_ids, attention_mask=attention_mask)[0]
|
|
expected_shape = torch.Size((1, 11, 768))
|
|
self.assertEqual(output.shape, expected_shape)
|
|
expected_slice = torch.tensor([[[0.4249, 0.1008, 0.7531], [0.3771, 0.1188, 0.7467], [0.4152, 0.1098, 0.7108]]])
|
|
|
|
torch.testing.assert_close(output[:, 1:4, 1:4], expected_slice, rtol=1e-4, atol=1e-4)
|
|
|
|
@slow
|
|
def test_inference_no_head_relative_embedding_key(self):
|
|
model = BertModel.from_pretrained(
|
|
"zhiheng-huang/bert-base-uncased-embedding-relative-key", attn_implementation="eager"
|
|
)
|
|
input_ids = torch.tensor([[0, 345, 232, 328, 740, 140, 1695, 69, 6078, 1588, 2]])
|
|
attention_mask = torch.tensor([[0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]])
|
|
with torch.no_grad():
|
|
output = model(input_ids, attention_mask=attention_mask)[0]
|
|
expected_shape = torch.Size((1, 11, 768))
|
|
self.assertEqual(output.shape, expected_shape)
|
|
expected_slice = torch.tensor(
|
|
[[[0.0756, 0.3142, -0.5128], [0.3761, 0.3462, -0.5477], [0.2052, 0.3760, -0.1240]]]
|
|
)
|
|
|
|
torch.testing.assert_close(output[:, 1:4, 1:4], expected_slice, rtol=1e-4, atol=1e-4)
|
|
|
|
@slow
|
|
def test_inference_no_head_relative_embedding_key_query(self):
|
|
model = BertModel.from_pretrained(
|
|
"zhiheng-huang/bert-base-uncased-embedding-relative-key-query", attn_implementation="eager"
|
|
)
|
|
input_ids = torch.tensor([[0, 345, 232, 328, 740, 140, 1695, 69, 6078, 1588, 2]])
|
|
attention_mask = torch.tensor([[0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]])
|
|
with torch.no_grad():
|
|
output = model(input_ids, attention_mask=attention_mask)[0]
|
|
expected_shape = torch.Size((1, 11, 768))
|
|
self.assertEqual(output.shape, expected_shape)
|
|
expected_slice = torch.tensor(
|
|
[[[0.6496, 0.3784, 0.8203], [0.8148, 0.5656, 0.2636], [-0.0681, 0.5597, 0.7045]]]
|
|
)
|
|
|
|
torch.testing.assert_close(output[:, 1:4, 1:4], expected_slice, rtol=1e-4, atol=1e-4)
|
|
|
|
@slow
|
|
@pytest.mark.torch_export_test
|
|
def test_export(self):
|
|
if version.parse(torch.__version__) < version.parse("2.4.0"):
|
|
self.skipTest(reason="This test requires torch >= 2.4 to run.")
|
|
|
|
bert_model = "google-bert/bert-base-uncased"
|
|
device = "cpu"
|
|
attn_implementation = "sdpa"
|
|
max_length = 512
|
|
|
|
tokenizer = AutoTokenizer.from_pretrained(bert_model)
|
|
inputs = tokenizer(
|
|
"the man worked as a [MASK].",
|
|
return_tensors="pt",
|
|
padding="max_length",
|
|
max_length=max_length,
|
|
)
|
|
|
|
model = BertForMaskedLM.from_pretrained(
|
|
bert_model,
|
|
device_map=device,
|
|
attn_implementation=attn_implementation,
|
|
use_cache=True,
|
|
)
|
|
|
|
logits = model(**inputs).logits
|
|
eg_predicted_mask = tokenizer.decode(logits[0, 6].topk(5).indices)
|
|
self.assertEqual(eg_predicted_mask.split(), ["carpenter", "waiter", "barber", "mechanic", "salesman"])
|
|
|
|
exported_program = torch.export.export(
|
|
model,
|
|
args=(inputs["input_ids"],),
|
|
kwargs={"attention_mask": inputs["attention_mask"]},
|
|
strict=True,
|
|
)
|
|
|
|
result = exported_program.module().forward(inputs["input_ids"], inputs["attention_mask"])
|
|
ep_predicted_mask = tokenizer.decode(result.logits[0, 6].topk(5).indices)
|
|
self.assertEqual(eg_predicted_mask, ep_predicted_mask)
|