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Artificial-Sweetener-Simple…/tests/segmentation/detection/test_grounding_dino_model_loader_node.py
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# SimpleSyrup - workflow-focused ComfyUI extensions for image generation
# Copyright (C) 2026 Artificial Sweetener and contributors
# SPDX-License-Identifier: AGPL-3.0-or-later
"""Tests for the GroundingDINO Model Loader node declaration."""
from __future__ import annotations
from typing import Any
import pytest
from simple_syrup.nodes.grounding_dino_model_loader import GroundingDINOModelLoader
from simple_syrup.runtime.grounding_dino_loader import (
TEXT_ENCODER_AUTO,
TEXT_ENCODER_COMFY,
TEXT_ENCODER_LAYERSTYLE,
)
from simple_syrup.runtime.model_choices import NO_LOCAL_GROUNDING_DINO_MODELS
def test_grounding_dino_model_loader_contract() -> None:
"""GroundingDINO loader exposes the SimpleSyrup model socket."""
assert GroundingDINOModelLoader.RETURN_TYPES == ("GROUNDING_DINO_MODEL",)
assert GroundingDINOModelLoader.RETURN_NAMES == ("grounding_dino_model",)
assert GroundingDINOModelLoader.FUNCTION == "load_model"
assert GroundingDINOModelLoader.CATEGORY == "SimpleSyrup/Masking"
def test_grounding_dino_model_loader_declares_expected_inputs(
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""GroundingDINO loader makes text encoder selection explicit."""
def catalog_choices() -> list[str]:
"""Return the catalog choice expected by this declaration test."""
return ["GroundingDINO_SwinT_OGC (694MB)"]
monkeypatch.setattr(
GroundingDINOModelLoader._choices,
"grounding_dino_choices",
catalog_choices,
)
input_types: dict[str, dict[str, tuple[Any, ...]]] = (
GroundingDINOModelLoader.INPUT_TYPES()
)
required = input_types["required"]
assert set(required) == {
"grounding_dino_model",
"text_encoder",
}
assert "GroundingDINO_SwinT_OGC (694MB)" in required["grounding_dino_model"][0]
assert TEXT_ENCODER_LAYERSTYLE in required["text_encoder"][0]
assert TEXT_ENCODER_COMFY in required["text_encoder"][0]
assert TEXT_ENCODER_AUTO in required["text_encoder"][0]
def test_grounding_dino_model_loader_uses_settings_aware_choices() -> None:
"""GroundingDINO loader dropdown choices come from the choice service."""
class FakeChoices:
"""Choice service double for INPUT_TYPES."""
def grounding_dino_choices(self) -> list[str]:
"""Return local-only choices."""
return ["GroundingDINO_SwinB (938MB)"]
original = GroundingDINOModelLoader._choices
GroundingDINOModelLoader._choices = FakeChoices() # type: ignore[assignment]
try:
required = GroundingDINOModelLoader.INPUT_TYPES()["required"]
finally:
GroundingDINOModelLoader._choices = original
assert required["grounding_dino_model"][0] == ["GroundingDINO_SwinB (938MB)"]
assert (
required["grounding_dino_model"][1]["default"] == "GroundingDINO_SwinB (938MB)"
)
def test_grounding_dino_model_loader_delegates_to_service() -> None:
"""Node execution delegates to the loader service."""
expected = object()
class FakeService:
"""Service double for node delegation."""
def load_model(self, **kwargs: object) -> object:
"""Return a fixed model object."""
return expected
node = GroundingDINOModelLoader()
original = GroundingDINOModelLoader._service
GroundingDINOModelLoader._service = FakeService() # type: ignore[assignment]
try:
result = node.load_model(
grounding_dino_model="GroundingDINO_SwinT_OGC (694MB)",
text_encoder=TEXT_ENCODER_AUTO,
)
finally:
GroundingDINOModelLoader._service = original
assert result == (expected,)
def test_grounding_dino_model_loader_rejects_sentinel_selection() -> None:
"""GroundingDINO loader rejects no-local-model sentinel selections."""
node = GroundingDINOModelLoader()
with pytest.raises(
ValueError,
match="No local GroundingDINO models are available",
):
node.load_model(
grounding_dino_model=NO_LOCAL_GROUNDING_DINO_MODELS,
text_encoder=TEXT_ENCODER_AUTO,
)
def test_grounding_dino_model_loader_always_allows_downloads_for_selected_models() -> (
None
):
"""Selected downloadable models are resolved with internal download enabled."""
class FakeService:
"""Service double that records node download policy."""
def __init__(self) -> None:
"""Create a recording service double."""
self.kwargs: dict[str, object] | None = None
def load_model(self, **kwargs: object) -> object:
"""Record call arguments and return a fixed model object."""
self.kwargs = kwargs
return object()
fake_service = FakeService()
original = GroundingDINOModelLoader._service
GroundingDINOModelLoader._service = fake_service # type: ignore[assignment]
try:
GroundingDINOModelLoader().load_model(
grounding_dino_model="GroundingDINO_SwinT_OGC (694MB)",
text_encoder=TEXT_ENCODER_AUTO,
)
finally:
GroundingDINOModelLoader._service = original
assert fake_service.kwargs is not None
assert fake_service.kwargs["auto_download"] is True