412 lines
15 KiB
Python
412 lines
15 KiB
Python
# Helper file to dynamically generate unit tests
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# This is done by running the python Transformers library and comparing its outputs with ours.
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import json
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import os
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from itertools import product
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from transformers import AutoTokenizer, AutoConfig
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import numpy as np
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from scripts.supported_models import SUPPORTED_MODELS
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# List of tokenizers where the model isn't yet supported, but the tokenizer is
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ADDITIONAL_TOKENIZERS_TO_TEST = {
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'falcon': [
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'tiiuae/falcon-7b',
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],
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"llama": [
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'hf-internal-testing/llama-tokenizer', # Special tokens: normalized=true
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'Xenova/llama2-tokenizer', # Special tokens: normalized=false
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'Xenova/llama2-chat-tokenizer', # Special tokens: normalized=false
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'hf-internal-testing/llama-code-tokenizer',
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],
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'mpt': [
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'mosaicml/mpt-7b',
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],
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't5': [
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# TODO: Add back when https://github.com/huggingface/transformers/issues/26318 is fixed
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# 'Xenova/t5-tokenizer-new',
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],
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}
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MODELS_TO_IGNORE = [
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# TODO: remove when https://github.com/huggingface/tokenizers/issues/251 is fixed
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'xlm',
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# TODO: remove when https://github.com/huggingface/transformers/issues/26018 is fixed
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'marian',
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# TODO: remove when https://github.com/huggingface/transformers/issues/26547 is fixed
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'speecht5',
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]
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TOKENIZERS_TO_IGNORE = [
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# TODO: remove when https://github.com/huggingface/transformers/pull/25478 is merged
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'facebook/m2m100_418M',
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# TODO: remove when https://github.com/huggingface/transformers/issues/28096 is addressed
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'RajuKandasamy/tamillama_tiny_30m',
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]
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MAX_TESTS = {
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'marian': 10,
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}
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TOKENIZER_TEST_DATA = {
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"shared": [
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"hello world",
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"Hello World",
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"How are you doing?",
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"You should've done this",
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"A\n'll !!to?'d''d of, can't.",
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"def main():\n\tpass",
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"This\n\nis\na\ntest.",
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"let a = obj.toString();\ntoString();",
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'Hi Hello',
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"trailing space ",
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" leading space",
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"生活的真谛是",
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"The company was founded in 2016.",
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"test $1 R2 #3 €4 £5 ¥6 ₣7 ₹8 ₱9 test",
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"I bought an apple for $1.00 at the store.",
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"you… ",
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"\u0079\u006F\u0075\u2026\u00A0\u00A0",
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"\u0079\u006F\u0075\u2026\u00A0\u00A0\u0079\u006F\u0075\u2026\u00A0\u00A0",
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"▁This ▁is ▁a ▁test ▁.",
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"weird \uFF5E edge \uFF5E case",
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# SentencePiece-specific test cases
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"<s>\n",
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" </s> test </s> ",
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"</s>test</s>",
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],
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"custom_by_model_type": {
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"llama": [
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# Additional test-cases for the Llama tokenizer, adapted from
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# https://github.com/belladoreai/llama-tokenizer-js/blob/master/llama-tokenizer.js#L381-L452
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"grabbed",
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" grabbed",
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" grabbed",
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"\n",
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" \n",
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" tabs out here",
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"\n\t\n",
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"ax\n####\nboo",
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"镇",
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"🦙",
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"🦙Ꙋ",
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"Ꙋ🦙",
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"The llama (/ˈlɑːmə/; 🦙Spanish pronunciation: [ˈʎama]) (Lama glama) is a domesticated South American " \
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"camelid, widely used as a meat and pack animal by Andean cultures since the Pre-Columbian era. Llamas " \
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"are social animals and live with others as a herd. Their wool is soft and contains only a small " \
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"amount of lanolin.[2] Llamas can learn simple tasks after a few repetitions. When using a pack, they " \
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"can carry about 25 to 30% of their body weight for 8 to 13 km (5–8 miles).[3] The name llama (in the " \
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"past also spelled \"lama\" or \"glama\") was adopted by European settlers from native Peruvians.[4] " \
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"The ancestors of llamas are thought to have originated from the Great Plains of North America about " \
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"40 million years ago, and subsequently migrated to South America about three million years ago during " \
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"the Great American Interchange. By the end of the last ice age (10,000–12,000 years ago), camelids were " \
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"extinct in North America.[3] As of 2007, there were over seven million llamas and alpacas in South " \
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"America and over 158,000 llamas and 100,000Ꙋ🦙 alpacas, descended from progenitors imported late in " \
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"the 20th century, in the United States and Canada.[5] In Aymara mythology, llamas are important beings. " \
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"The Heavenly Llama is said to drink water from the ocean and urinates as it rains.[6] According to " \
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"Aymara eschatology, llamas will return to the water springs and lagoons where they come from at the " \
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"end of time.[6]",
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]
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},
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"custom": {
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"facebook/blenderbot_small-90M": [
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# Test special tokens
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"__start__hello world__end__",
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# The original (python) tokenizer simply joins by spaces (regardless of special tokens or not)
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"__start__ hey __end__" # --> ... --> "__start__ hey __end__"
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"__start__hey __end__" # --> ... --> "__start__ hey __end__"
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],
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"tiiuae/falcon-7b": [
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"12 and 123 and 1234", # Special case for splitting on 3 numbers
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],
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"InstaDeepAI/nucleotide-transformer-500m-human-ref": [
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# Actual protein sequences
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"ATTCCGATTCCGATTCCG",
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"ATTTCTCTCTCTCTCTGAGATCGATCGATCGAT",
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# Special tokens
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"<unk><pad><mask><cls><eos><bos>",
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],
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"distil-whisper/distil-small.en": [
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" <|startoftranscript|> <|en|> ", # Tests lstrip+rstrip
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],
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"Xenova/t5-tokenizer-new": [
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# Tests the new T5 tokenizer, which uses a different prepend_scheme for its pre_tokenizer:
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# tokenizer._tokenizer.pre_tokenizer = Metaspace(add_prefix_space = True, replacement = "▁", prepend_scheme = "first")
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# See https://github.com/huggingface/transformers/pull/26678 for more information.
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# - Old (incorrect): ['▁Hey', '▁', '</s>', '▁', '.', '▁how', '▁are', '▁you']
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# - New (correct): ['▁Hey', '▁', '</s>', '.', '▁how', '▁are', '▁you']
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"Hey </s>. how are you",
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],
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},
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}
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CHAT_MESSAGES_EXAMPLES = {
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'basic': [
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{"role": "user", "content": "Hello, how are you?"},
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{"role": "assistant", "content": "I'm doing great. How can I help you today?"},
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{"role": "user", "content": "I'd like to show off how chat templating works!"},
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],
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'system': [
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{"role": "system", "content": "You are a friendly chatbot who always responds in the style of a pirate"},
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{"role": "user", "content": "How many helicopters can a human eat in one sitting?"},
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],
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'system + assistant': [
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{"role": "system", "content": "You are a friendly chatbot who always responds in the style of a pirate"},
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{"role": "user", "content": "Hello, how are you?"},
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{"role": "assistant", "content": "I'm doing great. How can I help you today?"},
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{"role": "user", "content": "I'd like to show off how chat templating works!"},
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],
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}
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TOKENIZERS_WITH_CHAT_TEMPLATES = {
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# https://huggingface.co/docs/transformers/main/en/chat_templating
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'Xenova/blenderbot-400M-distill': [
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'basic',
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],
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'mistralai/Mistral-7B-Instruct-v0.1': [
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'basic',
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],
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'HuggingFaceH4/zephyr-7b-beta': [
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'system',
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],
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'Xenova/llama-tokenizer': [
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'basic',
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'system',
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'system + assistant',
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],
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'Xenova/llama2-tokenizer': [
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'basic',
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'system',
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'system + assistant',
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],
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'Xenova/llama2-chat-tokenizer': [
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'basic',
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'system',
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'system + assistant',
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],
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}
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FLATTENED_SUPPORTED_MODELS = [
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(model_type, [
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model for task_models in tasks.values() for model in task_models
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]) for model_type, tasks in SUPPORTED_MODELS.items()
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]
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def generate_tokenizer_tests():
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tokenization_results = {}
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tokenizers_to_test = FLATTENED_SUPPORTED_MODELS + \
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list(ADDITIONAL_TOKENIZERS_TO_TEST.items())
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for model_type, tokenizer_names in tokenizers_to_test:
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if model_type in MODELS_TO_IGNORE:
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continue
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if model_type in MAX_TESTS:
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tokenizer_names = tokenizer_names[:MAX_TESTS[model_type]]
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custom_by_model_type_texts = TOKENIZER_TEST_DATA["custom_by_model_type"].get(
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model_type, [])
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print(f'Generating tests for {model_type}')
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for tokenizer_name in tokenizer_names:
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if tokenizer_name in TOKENIZERS_TO_IGNORE:
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continue
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print(' -', tokenizer_name)
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try:
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# Load tokenizer
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if model_type == 'llama':
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# As of 17/12/2023, there are a few issues with the Llama tokenizers in transformers.
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# (1) Encoding with fast tokenizer adds whitespace after speical tokens:
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# - https://github.com/huggingface/transformers/issues/25881
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# - https://github.com/huggingface/transformers/issues/26318
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# - https://github.com/huggingface/transformers/issues/26455
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# - https://github.com/huggingface/transformers/issues/27544
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# (2) Decoding with slow tokenizer adds whitespace after special tokens:
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# - https://github.com/huggingface/transformers/issues/25073
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#
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# So for now, we mix and match the tokenizers:
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# i.e., use the fast tokenizer for encoding, and the slow tokenizer for decoding.
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# TODO: remove when the above issues are fixed:
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tokenizer = AutoTokenizer.from_pretrained(
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tokenizer_name,
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use_fast=False,
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)
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decoder_tokenizer = AutoTokenizer.from_pretrained(
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tokenizer_name,
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use_fast=True,
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)
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else:
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decoder_tokenizer = tokenizer = AutoTokenizer.from_pretrained(
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tokenizer_name)
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except (KeyError, EnvironmentError):
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# If a KeyError/EnvironmentError is raised from the AutoTokenizer, it
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# means the model does not use a tokenizer (e.g., vision models)
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continue
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try:
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# Disable dropout, if the model allows it
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tokenizer.backend_tokenizer.model.dropout = 0
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except AttributeError:
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pass
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tokenizer_results = []
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shared_texts = TOKENIZER_TEST_DATA["shared"]
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custom_texts = TOKENIZER_TEST_DATA["custom"].get(
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tokenizer_name, [])
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# Run tokenizer on test cases
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for text in shared_texts + custom_texts + custom_by_model_type_texts:
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# TODO: add with_pair option
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try:
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encoded = tokenizer(text).data
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except Exception:
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# Ignore testing tokenizers which fail in the python library
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continue
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decoded_with_special = decoder_tokenizer.decode(
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encoded["input_ids"], skip_special_tokens=False)
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decoded_without_special = decoder_tokenizer.decode(
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encoded["input_ids"], skip_special_tokens=True)
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tokenizer_results.append(dict(
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input=text,
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encoded=encoded,
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decoded_with_special=decoded_with_special,
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decoded_without_special=decoded_without_special,
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))
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if tokenizer_results:
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tokenization_results[tokenizer_name] = tokenizer_results
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template_results = {}
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for tokenizer_id in TOKENIZERS_WITH_CHAT_TEMPLATES:
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print(f'Generating chat templates for {tokenizer_id}')
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tokenizer = AutoTokenizer.from_pretrained(
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tokenizer_id,
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# TODO: Remove once https://github.com/huggingface/transformers/pull/26678 is fixed
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use_fast='llama' not in tokenizer_id,
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)
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tokenizer_results = []
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for key in TOKENIZERS_WITH_CHAT_TEMPLATES[tokenizer_id]:
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messages = CHAT_MESSAGES_EXAMPLES[key]
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for add_generation_prompt, tokenize in product([True, False], [True, False]):
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tokenizer_results.append(dict(
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messages=messages,
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add_generation_prompt=add_generation_prompt,
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tokenize=tokenize,
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target=tokenizer.apply_chat_template(
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messages,
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add_generation_prompt=add_generation_prompt,
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tokenize=tokenize,
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),
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))
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template_results[tokenizer_id] = tokenizer_results
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return dict(
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tokenization=tokenization_results,
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templates=template_results,
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)
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def generate_config_tests():
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results = {}
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for model_type, config_names in FLATTENED_SUPPORTED_MODELS:
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print(f'Generating tests for {model_type}')
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for config_name in config_names:
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print(' -', config_name)
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try:
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# Load config
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config = AutoConfig.from_pretrained(config_name)
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except Exception:
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# Something went wrong, skip this config
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continue
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results[config_name] = config.to_dict()
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# TODO: Remove after https://github.com/huggingface/transformers/issues/23876 fixed
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results[config_name].pop('torch_dtype', None)
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return results
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ARRAY_SIZES = sorted(set([2 ** i for i in range(1, 10)])
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| set([3 ** i for i in range(1, 8)])
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| set([5 ** i for i in range(1, 6)])
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| set([7 ** i for i in range(1, 4)]))
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def serialize_complex_array(arr):
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return [float(x) for y in arr for x in [y.real, y.imag]]
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def serialize_real_array(arr):
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return arr.tolist()
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def generate_fft_tests():
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np.random.seed(0)
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tests = {}
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for complex in [False, True]:
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serialize_fn = serialize_complex_array if complex else serialize_real_array
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for size in ARRAY_SIZES:
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arr = np.random.randn(size).astype(
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np.complex64 if complex else np.float64)
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if complex:
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arr += np.random.randn(size) * 1j
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tests[f"fft_{size}_{'complex' if complex else 'real'}"] = {
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"complex": complex,
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"input": serialize_fn(arr),
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"output": serialize_complex_array(np.fft.fft(arr)),
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}
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return tests
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def main():
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# TODO add option to cache generated data + force build tests
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data_dir = os.path.join(
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os.path.dirname(os.path.abspath(__file__)), "data",
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)
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tokenizer_tests = generate_tokenizer_tests()
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with open(os.path.join(data_dir, "tokenizer_tests.json"), "w", encoding="utf-8") as fp:
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json.dump(tokenizer_tests, fp)
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config_tests = generate_config_tests()
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with open(os.path.join(data_dir, "config_tests.json"), "w", encoding="utf-8") as fp:
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json.dump(config_tests, fp)
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fft_tests = generate_fft_tests()
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with open(os.path.join(data_dir, "fft_tests.json"), "w", encoding="utf-8") as fp:
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json.dump(fft_tests, fp)
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if __name__ == "__main__":
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main()
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