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0d80452 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | # Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from unittest.mock import MagicMock
from lerobot.utils.hub import find_latest_hub_checkpoint
def _patch_list_files(monkeypatch, files):
api = MagicMock()
api.list_repo_files.return_value = files
# HfApi is imported into lerobot.utils.hub at module load, so patch it there.
monkeypatch.setattr("lerobot.utils.hub.HfApi", lambda *a, **k: api)
return api
def test_find_latest_hub_checkpoint_picks_highest_step(monkeypatch):
_patch_list_files(
monkeypatch,
[
"README.md",
"checkpoints/000500/pretrained_model/model.safetensors",
"checkpoints/000500/training_state/training_step.json",
"checkpoints/020000/pretrained_model/model.safetensors",
"checkpoints/001000/training_state/training_step.json",
],
)
# Numeric max, not lexicographic — "020000" beats "001000"/"000500".
assert find_latest_hub_checkpoint("u/run") == "checkpoints/020000"
def test_find_latest_hub_checkpoint_ignores_non_step_entries(monkeypatch):
_patch_list_files(
monkeypatch,
["checkpoints/last/pretrained_model/model.safetensors", "config.json"],
)
# "last" (a symlink target name) is not a numeric step → no resolvable checkpoint.
assert find_latest_hub_checkpoint("u/run") is None
def test_find_latest_hub_checkpoint_none_when_no_checkpoints(monkeypatch):
_patch_list_files(monkeypatch, ["config.json", "model.safetensors"])
assert find_latest_hub_checkpoint("u/run") is None
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