| 1 | # SPDX-License-Identifier: Apache-2.0 |
| 2 | # SPDX-FileCopyrightText: Copyright contributors to the vLLM project |
| 3 | |
| 4 | import pytest |
| 5 | |
| 6 | from vllm.transformers_utils.configs.speculators.base import SpeculatorsConfig |
| 7 | |
| 8 | pytestmark = pytest.mark.skip_global_cleanup |
| 9 | |
| 10 | |
| 11 | def _make_dspark_config(architecture: str) -> dict: |
| 12 | return { |
| 13 | "speculators_model_type": "dspark", |
| 14 | "architectures": [architecture], |
| 15 | "sample_from_anchor": True, |
| 16 | "use_aux_hidden_state": True, |
| 17 | "draft_vocab_size": 32, |
| 18 | "target_hidden_size": 16, |
| 19 | "mask_token_id": 31, |
| 20 | "markov_rank": 4, |
| 21 | "markov_head_type": "vanilla", |
| 22 | "block_size": 3, |
| 23 | "aux_hidden_state_layer_ids": [2, 5], |
| 24 | "transformer_layer_config": { |
| 25 | "model_type": "qwen3", |
| 26 | "hidden_size": 16, |
| 27 | }, |
| 28 | } |
| 29 | |
| 30 | |
| 31 | def test_dspark_updater_preserves_qwen3_omni_contract() -> None: |
| 32 | config = SpeculatorsConfig.extract_transformers_pre_trained_config( |
| 33 | _make_dspark_config("Qwen3OmniDSparkModel") |
| 34 | ) |
| 35 | |
| 36 | assert config["architectures"] == ["Qwen3OmniDSparkModel"] |
| 37 | assert config["sample_from_anchor"] is True |
| 38 | assert config["dspark_bonus_anchor"] is False |
| 39 | assert config["use_aux_hidden_state"] is True |
| 40 | assert config["target_layer_ids"] == [1, 4] |
| 41 | |
| 42 | |
| 43 | def test_dspark_updater_keeps_legacy_qwen3_checkpoint_loadable() -> None: |
| 44 | config = SpeculatorsConfig.extract_transformers_pre_trained_config( |
| 45 | _make_dspark_config("DSparkSpeculator") |
| 46 | ) |
| 47 | |
| 48 | assert config["architectures"] == ["Qwen3DSparkModel"] |
| 49 | |
| 50 | |
| 51 | def test_dspark_updater_maps_bonus_anchor_semantics() -> None: |
| 52 | outer_config = _make_dspark_config("Qwen3DSparkModel") |
| 53 | outer_config["sample_from_anchor"] = False |
| 54 | |
| 55 | config = SpeculatorsConfig.extract_transformers_pre_trained_config(outer_config) |
| 56 | |
| 57 | assert config["sample_from_anchor"] is False |
| 58 | assert config["dspark_bonus_anchor"] is True |