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Create test for #38916 (custom generate from local dir with imports) #39015

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Merged
manueldeprada merged 3 commits into from
Jun 26, 2025
Merged

Create test for #38916 (custom generate from local dir with imports) #39015

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a8a0ab1
create test for #38916
manueldeprada Jun 24, 2025
68144fe
Merge branch 'main' into local-custom-gen-tests
manueldeprada Jun 24, 2025
63365ca
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manueldeprada Jun 24, 2025
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22 changes: 22 additions & 0 deletions tests/generation/test_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@
import tempfile
import unittest
import warnings
from pathlib import Path

import numpy as np
import pytest
Expand Down Expand Up @@ -4985,6 +4986,27 @@ def test_custom_generate_requires_trust_remote_code(self):
with self.assertRaises(ValueError):
model.generate(**model_inputs, custom_generate="transformers-community/custom_generate_example")

def test_custom_generate_local_directory(self):
"""Tests that custom_generate works with local directories containing importable relative modules"""
with tempfile.TemporaryDirectory() as tmp_dir:
custom_generate_dir = Path(tmp_dir) / "custom_generate"
custom_generate_dir.mkdir()
with open(custom_generate_dir / "generate.py", "w") as f:
f.write("from .helper import ret_success\ndef generate(*args, **kwargs):\n return ret_success()\n")
with open(custom_generate_dir / "helper.py", "w") as f:
f.write('def ret_success():\n return "success"\n')
model = AutoModelForCausalLM.from_pretrained(
"hf-internal-testing/tiny-random-MistralForCausalLM", device_map="auto"
)
tokenizer = AutoTokenizer.from_pretrained("hf-internal-testing/tiny-random-MistralForCausalLM")
model_inputs = tokenizer("Hello, world!", return_tensors="pt").to(model.device)
value = model.generate(
**model_inputs,
custom_generate=str(tmp_dir),
trust_remote_code=True,
)
assert value == "success"


@require_torch
class TokenHealingTestCase(unittest.TestCase):
Expand Down