119 lines
5.2 KiB
Python
119 lines
5.2 KiB
Python
# coding=utf-8
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# Copyright 2025 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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import json
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import shutil
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import tempfile
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import unittest
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from transformers.testing_utils import require_av, require_vision
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from transformers.utils import is_vision_available
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from ...test_processing_common import ProcessorTesterMixin
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if is_vision_available():
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from transformers import (
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AutoProcessor,
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Ovis2ImageProcessor,
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Ovis2Processor,
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Qwen2TokenizerFast,
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)
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@require_vision
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class Ovis2ProcessorTest(ProcessorTesterMixin, unittest.TestCase):
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processor_class = Ovis2Processor
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def setUp(self):
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self.tmpdirname = tempfile.mkdtemp()
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image_processor = Ovis2ImageProcessor()
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tokenizer = Qwen2TokenizerFast.from_pretrained("thisisiron/Ovis2-1B-hf")
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processor_kwargs = self.prepare_processor_dict()
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processor = Ovis2Processor(image_processor=image_processor, tokenizer=tokenizer, **processor_kwargs)
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processor.save_pretrained(self.tmpdirname)
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def get_tokenizer(self, **kwargs):
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return AutoProcessor.from_pretrained(self.tmpdirname, **kwargs).tokenizer
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def get_image_processor(self, **kwargs):
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return AutoProcessor.from_pretrained(self.tmpdirname, **kwargs).image_processor
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def prepare_processor_dict(self):
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return {
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"chat_template": "<|im_start|>system\nYou are a helpful assistant.<|im_end|>\n{% for message in messages %}{{'<|im_start|>' + message['role'] + '\n'}}{% if message['content'] is string %}{{ message['content'] }}{% else %}{% for content in message['content'] %}{% if content['type'] == 'image' %}{{ '<image>\n' }}{% elif content['type'] == 'text' %}{{ content['text'] }}{% endif %}{% endfor %}{% endif %}{{'<|im_end|>\n'}}{% endfor %}{% if add_generation_prompt %}{{'<|im_start|>assistant\n' }}{% endif %}",
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} # fmt: skip
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def test_processor_to_json_string(self):
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processor = self.get_processor()
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obj = json.loads(processor.to_json_string())
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for key, value in self.prepare_processor_dict().items():
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# chat_tempalate are tested as a separate test because they are saved in separate files
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if key != "chat_template":
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self.assertEqual(obj[key], value)
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self.assertEqual(getattr(processor, key, None), value)
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def test_chat_template_is_saved(self):
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processor_loaded = self.processor_class.from_pretrained(self.tmpdirname)
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processor_dict_loaded = json.loads(processor_loaded.to_json_string())
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# chat templates aren't serialized to json in processors
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self.assertFalse("chat_template" in processor_dict_loaded)
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# they have to be saved as separate file and loaded back from that file
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# so we check if the same template is loaded
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processor_dict = self.prepare_processor_dict()
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self.assertTrue(processor_loaded.chat_template == processor_dict.get("chat_template", None))
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def tearDown(self):
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shutil.rmtree(self.tmpdirname)
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def test_chat_template(self):
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processor = AutoProcessor.from_pretrained("thisisiron/Ovis2-1B-hf")
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expected_prompt = "<|im_start|>system\nYou are a helpful assistant.<|im_end|>\n<|im_start|>user\n<image>\nWhat is shown in this image?<|im_end|>\n<|im_start|>assistant\n"
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messages = [
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{
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"role": "user",
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"content": [
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{"type": "image"},
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{"type": "text", "text": "What is shown in this image?"},
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],
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},
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]
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formatted_prompt = processor.apply_chat_template(messages, add_generation_prompt=True)
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self.assertEqual(expected_prompt, formatted_prompt)
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@require_av
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def test_chat_template_dict(self):
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processor = AutoProcessor.from_pretrained("thisisiron/Ovis2-1B-hf")
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messages = [
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{
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"role": "user",
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"content": [
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{"type": "image"},
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{"type": "text", "text": "What is shown in this image?"},
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],
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},
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]
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formatted_prompt_tokenized = processor.apply_chat_template(messages, add_generation_prompt=True, tokenize=True)
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expected_output = [[151644, 8948, 198, 2610, 525, 264, 10950, 17847, 13, 151645, 198, 151644, 872, 198, 27, 1805, 397, 3838, 374, 6839, 304, 419, 2168, 30, 151645, 198, 151644, 77091, 198]] # fmt: skip
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self.assertListEqual(expected_output, formatted_prompt_tokenized)
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out_dict = processor.apply_chat_template(messages, add_generation_prompt=True, tokenize=True, return_dict=True)
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self.assertListEqual(list(out_dict.keys()), ["input_ids", "attention_mask"])
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