use offline for precached stream dataset (#2453)

tests/prompt_strategies/conftest.py

@@ -109,7 +109,9 @@ def fixture_toolcalling_dataset():
 
 @pytest.fixture(name="llama3_tokenizer", scope="session", autouse=True)
 @enable_hf_offline
-def fixture_llama3_tokenizer():
+def fixture_llama3_tokenizer(
+    download_llama3_8b_instruct_model_fixture,
+):  # pylint: disable=unused-argument,redefined-outer-name
     tokenizer = AutoTokenizer.from_pretrained("NousResearch/Meta-Llama-3-8B-Instruct")
 
     return tokenizer
@@ -123,7 +125,10 @@ def fixture_smollm2_tokenizer():
 
 
 @pytest.fixture(name="mistralv03_tokenizer", scope="session", autouse=True)
-def fixture_mistralv03_tokenizer():
+@enable_hf_offline
+def fixture_mistralv03_tokenizer(
+    download_mlx_mistral_7b_model_fixture,
+):  # pylint: disable=unused-argument,redefined-outer-name
     tokenizer = AutoTokenizer.from_pretrained(
         "mlx-community/Mistral-7B-Instruct-v0.3-4bit"
     )

tests/prompt_strategies/test_chat_templates_advanced.py

@@ -9,6 +9,7 @@ import pytest
 from datasets import Dataset
 from tokenizers import AddedToken
 from transformers import PreTrainedTokenizer
+from utils import enable_hf_offline
 
 from axolotl.prompt_strategies.chat_template import (
     ChatTemplatePrompter,
@@ -101,6 +102,7 @@ class TestChatTemplateConfigurations:
             return True
         return False
 
+    @enable_hf_offline
     def test_train_on_inputs_true(
         self,
         tokenizer,