Files
axolotl/tests/test_tokenizers.py
Wing Lian 05f03b541a hf offline decorator for tests to workaround rate limits (#2452) [skip ci]
* hf offline decorator for tests to workaround rate limits

* fail quicker so we can see logs

* try new cache name

* limit files downloaded

* phi mini predownload

* offline decorator for phi tokenizer

* handle meta llama 8b offline too

* make sure to return fixtures if they are wrapped too

* more fixes

* more things offline

* more offline things

* fix the env var

* fix the model name

* handle gemma also

* force reload of modules to recheck offline status

* prefetch mistral too

* use reset_sessions so hub picks up offline mode

* more fixes

* rename so it doesn't seem like a context manager

* fix backoff

* switch out tinyshakespeare dataset since it runs a py script to fetch data and doesn't work offline

* include additional dataset

* more fixes

* more fixes

* replace tiny shakespeaere dataset

* skip some tests for now

* use more robust check using snapshot download to determine if a dataset name is on the hub

* typo for skip reason

* use local_files_only

* more fixtures

* remove local only

* use tiny shakespeare as pretrain dataset and streaming can't be offline even if precached

* make sure fixtures aren't offline

improve the offline reset
try bumping version of datasets
reorder reloading and setting
prime a new cache
run the tests now with fresh cache
try with a static cache

* now run all the ci again with hopefully a correct cache

* skip wonky tests for now

* skip wonky tests for now

* handle offline mode for model card creation
2025-03-28 19:20:46 -04:00

132 lines
3.8 KiB
Python

"""
Test cases for the tokenizer loading
"""
import unittest
import pytest
from utils import enable_hf_offline
from axolotl.utils.dict import DictDefault
from axolotl.utils.models import load_tokenizer
class TestTokenizers:
"""
test class for the load_tokenizer fn
"""
@enable_hf_offline
def test_default_use_fast(self):
cfg = DictDefault(
{
"tokenizer_config": "huggyllama/llama-7b",
}
)
tokenizer = load_tokenizer(cfg)
assert "Fast" in tokenizer.__class__.__name__
@enable_hf_offline
def test_dont_use_fast(self):
cfg = DictDefault(
{
"tokenizer_config": "huggyllama/llama-7b",
"tokenizer_use_fast": False,
}
)
tokenizer = load_tokenizer(cfg)
assert "Fast" not in tokenizer.__class__.__name__
@enable_hf_offline
def test_special_tokens_modules_to_save(self):
# setting special_tokens to new token
cfg = DictDefault(
{
"tokenizer_config": "huggyllama/llama-7b",
"adapter": "lora",
"special_tokens": {"bos_token": "[INST]"},
}
)
with pytest.raises(
ValueError,
match=r".*Please set lora_modules_to_save*",
):
load_tokenizer(cfg)
# setting special_tokens but not changing from default
cfg = DictDefault(
{
"tokenizer_config": "huggyllama/llama-7b",
"adapter": "lora",
"special_tokens": {"bos_token": "<s>"},
}
)
load_tokenizer(cfg)
# non-adapter setting special_tokens
cfg = DictDefault(
{
"tokenizer_config": "huggyllama/llama-7b",
"special_tokens": {"bos_token": "[INST]"},
}
)
load_tokenizer(cfg)
@enable_hf_offline
def test_add_additional_special_tokens(self):
cfg = DictDefault(
{
"tokenizer_config": "huggyllama/llama-7b",
"special_tokens": {"additional_special_tokens": ["<|im_start|>"]},
}
)
tokenizer = load_tokenizer(cfg)
assert tokenizer("<|im_start|>user")["input_ids"] == [1, 32000, 1404]
assert len(tokenizer) == 32001
# ensure reloading the tokenizer again from cfg results in same vocab length
tokenizer = load_tokenizer(cfg)
assert len(tokenizer) == 32001
@enable_hf_offline
def test_added_tokens_overrides(self, temp_dir):
cfg = DictDefault(
{
# use with tokenizer that has reserved_tokens in added_tokens
"tokenizer_config": "NousResearch/Llama-3.2-1B",
"added_tokens_overrides": {
128041: "RANDOM_OVERRIDE_1",
128042: "RANDOM_OVERRIDE_2",
},
"output_dir": temp_dir,
}
)
tokenizer = load_tokenizer(cfg)
assert tokenizer.encode("RANDOM_OVERRIDE_1", add_special_tokens=False) == [
128041
]
assert tokenizer.encode("RANDOM_OVERRIDE_2", add_special_tokens=False) == [
128042
]
@enable_hf_offline
def test_added_tokens_overrides_with_toolargeid(self, temp_dir):
cfg = DictDefault(
{
# use with tokenizer that has reserved_tokens in added_tokens
"tokenizer_config": "HuggingFaceTB/SmolLM2-135M",
"added_tokens_overrides": {1000000: "BROKEN_RANDOM_OVERRIDE_1"},
"output_dir": temp_dir,
}
)
with pytest.raises(
ValueError, match=r".*Token ID 1000000 not found in added_tokens.*"
):
load_tokenizer(cfg)
if __name__ == "__main__":
unittest.main()