feat(nodes): flag missing local models at queue and load time (#1057)

tests/nodes/test_lora_validation.py

@@ -0,0 +1,252 @@
+"""Tests for queue-time LoRA validation helpers (validate_lora_entries)."""
+
+import pytest
+
+from py.nodes.utils import _find_missing_loras, validate_lora_entries
+
+
+class _FakeCache:
+    def __init__(self, raw_data):
+        self.raw_data = raw_data
+
+
+class _FakeScanner:
+    def __init__(self, raw_data):
+        self._raw_data = raw_data
+        # Non-None cache marks the scanner as initialized; None means the
+        # real scanner has not hydrated yet (validation must stay lenient).
+        self._cache = object()
+        self._is_initializing = False
+
+    async def get_cached_data(self, force_refresh=False):
+        return _FakeCache(self._raw_data)
+
+
+@pytest.fixture
+def lora_library(tmp_path):
+    """Create a fake on-disk LoRA library plus a matching scanner cache."""
+    existing_a = tmp_path / "a.safetensors"
+    existing_b = tmp_path / "sub" / "b.safetensors"
+    existing_a.write_bytes(b"a")
+    existing_b.parent.mkdir()
+    existing_b.write_bytes(b"b")
+
+    # "gone" is referenced by the cache but the file was deleted afterwards,
+    # simulating a stale scanner cache.
+    gone = tmp_path / "gone.safetensors"
+
+    raw_data = [
+        {"file_name": "a.safetensors", "folder": "", "file_path": str(existing_a)},
+        {
+            "file_name": "b.safetensors",
+            "folder": "sub",
+            "file_path": str(existing_b),
+        },
+        {"file_name": "gone.safetensors", "folder": "", "file_path": str(gone)},
+    ]
+    return raw_data
+
+
+@pytest.fixture
+def mock_lora_scanner(lora_library, monkeypatch):
+    from py.services.service_registry import ServiceRegistry
+
+    async def _fake_scanner():
+        return _FakeScanner(lora_library)
+
+    monkeypatch.setattr(
+        ServiceRegistry, "get_lora_scanner", _fake_scanner
+    )
+
+
+def _entries(*names):
+    return [
+        {"active": True, "name": name, "strength": 1.0, "clipStrength": 1.0}
+        for name in names
+    ]
+
+
+def test_validate_flat_name_with_extension(mock_lora_scanner):
+    assert validate_lora_entries({"loras": _entries("a.safetensors")}) is None
+
+
+def test_validate_flat_name_without_extension(mock_lora_scanner):
+    assert validate_lora_entries({"loras": _entries("a")}) is None
+
+
+def test_validate_subfolder_name(mock_lora_scanner):
+    assert validate_lora_entries({"loras": _entries("sub/b.safetensors")}) is None
+    assert validate_lora_entries({"loras": _entries("sub/b")}) is None
+
+
+def test_validate_stale_cache_entry_reported(mock_lora_scanner):
+    result = validate_lora_entries({"loras": _entries("gone.safetensors")})
+    assert result is not None
+    assert "gone.safetensors" in result
+
+
+def test_validate_unknown_name_reported(mock_lora_scanner):
+    result = validate_lora_entries({"loras": _entries("nope.safetensors")})
+    assert result is not None
+    assert "nope.safetensors" in result
+
+
+def test_validate_multiple_missing_all_listed(mock_lora_scanner):
+    result = validate_lora_entries(
+        {"loras": _entries("gone.safetensors", "nope.safetensors")}
+    )
+    assert result is not None
+    assert "gone.safetensors" in result
+    assert "nope.safetensors" in result
+
+
+def test_validate_inactive_entries_ignored(mock_lora_scanner):
+    kwargs = {"loras": [{"active": False, "name": "gone.safetensors", "strength": 1.0}]}
+    assert validate_lora_entries(kwargs) is None
+
+
+def test_validate_value_wrapper_format(mock_lora_scanner):
+    kwargs = {"loras": {"__value__": _entries("a.safetensors")}}
+    assert validate_lora_entries(kwargs) is None
+    kwargs_missing = {"loras": {"__value__": _entries("gone.safetensors")}}
+    assert validate_lora_entries(kwargs_missing) is not None
+
+
+def test_validate_legacy_basename_fallback(mock_lora_scanner):
+    # A name with a folder that only matches by basename resolves at runtime
+    # via get_lora_info_absolute's fallback, so it must not be flagged.
+    assert validate_lora_entries({"loras": _entries("other/b.safetensors")}) is None
+
+
+def test_validate_existing_absolute_path_ok(mock_lora_scanner, lora_library):
+    existing_a = lora_library[0]["file_path"]
+    assert validate_lora_entries({"loras": _entries(existing_a)}) is None
+
+
+def test_validate_missing_absolute_path_reported(mock_lora_scanner):
+    result = validate_lora_entries(
+        {"loras": _entries("/nonexistent/path/x.safetensors")}
+    )
+    # Legacy syntax format normalizes to the basename, matching execution.
+    assert result is not None
+    assert "x.safetensors" in result
+
+
+def test_validate_empty_or_missing_loras_is_valid(mock_lora_scanner):
+    assert validate_lora_entries({}) is None
+    assert validate_lora_entries({"loras": []}) is None
+
+
+def test_validate_scanner_failure_is_lenient(monkeypatch):
+    from py.services.service_registry import ServiceRegistry
+
+    def _boom():
+        raise RuntimeError("scanner not initialized")
+
+    monkeypatch.setattr(ServiceRegistry, "get_lora_scanner", _boom)
+    assert validate_lora_entries({"loras": _entries("a.safetensors")}) is None
+
+
+def test_find_missing_loras_empty(mock_lora_scanner):
+    assert _find_missing_loras([]) == []
+
+
+def test_validate_inputs_only_reports_loras_input(mock_lora_scanner):
+    """VALIDATE_INPUTS must fail for the single 'loras' input only — ComfyUI
+    creates one custom_validation_failed error per declared input, so an
+    explicit loras parameter keeps the report to a single input error."""
+    from py.nodes.lora_loader import LoraLoaderLM
+    from py.nodes.lora_stacker import LoraStackerLM
+    from py.nodes.create_hook_lora import CreateHookLoraLM
+    from py.nodes.wanvideo_lora_select import WanVideoLoraSelectLM
+    from py.nodes.lora_randomizer import LoraRandomizerLM
+
+    import inspect
+
+    for cls in (
+        LoraLoaderLM,
+        LoraStackerLM,
+        CreateHookLoraLM,
+        WanVideoLoraSelectLM,
+        LoraRandomizerLM,
+    ):
+        spec = inspect.getfullargspec(getattr(cls, "VALIDATE_INPUTS"))
+        assert spec.varkw is None, f"{cls.__name__} VALIDATE_INPUTS must not accept **kwargs"
+        assert "loras" in spec.args, f"{cls.__name__} VALIDATE_INPUTS must declare loras"
+
+    result = LoraLoaderLM.VALIDATE_INPUTS(
+        loras=[
+            {"active": True, "name": "gone.safetensors", "strength": 1.0},
+        ]
+    )
+    assert result is not None
+    assert "gone.safetensors" in result
+
+    assert LoraLoaderLM.VALIDATE_INPUTS(loras=None) is True
+    assert LoraLoaderLM.VALIDATE_INPUTS() is True
+    assert LoraLoaderLM.VALIDATE_INPUTS(loras=[]) is True
+
+
+def test_validate_lenient_when_scanner_not_initialized(monkeypatch):
+    """An unhydrated scanner (empty cache) must not reject every LoRA."""
+    from py.services.service_registry import ServiceRegistry
+
+    class _UninitializedScanner(_FakeScanner):
+        def __init__(self, raw_data):
+            super().__init__(raw_data)
+            self._cache = None
+
+    async def _fake_scanner():
+        return _UninitializedScanner([])
+
+    monkeypatch.setattr(ServiceRegistry, "get_lora_scanner", _fake_scanner)
+    assert validate_lora_entries({"loras": _entries("a.safetensors")}) is None
+
+
+def test_validate_lenient_while_scanner_initializing(monkeypatch):
+    from py.services.service_registry import ServiceRegistry
+
+    class _InitializingScanner(_FakeScanner):
+        def __init__(self, raw_data):
+            super().__init__(raw_data)
+            self._is_initializing = True
+
+    async def _fake_scanner():
+        return _InitializingScanner([])
+
+    monkeypatch.setattr(ServiceRegistry, "get_lora_scanner", _fake_scanner)
+    assert validate_lora_entries({"loras": _entries("a.safetensors")}) is None
+
+
+def test_find_missing_basename_fallback_prefers_folder_prefix(
+    tmp_path, monkeypatch
+):
+    """Folder-prefix candidates win over the first basename match, mirroring
+    get_lora_info_absolute's fallback ordering."""
+    from py.services.service_registry import ServiceRegistry
+
+    root_a = tmp_path / "root_a"
+    root_b = tmp_path / "root_b"
+    root_a.mkdir()
+    root_b.mkdir()
+    live_a = root_a / "x.safetensors"
+    live_a.write_bytes(b"x")
+    stale_b = root_b / "x.safetensors"  # same basename, file deleted
+
+    raw_data = [
+        {"file_name": "x.safetensors", "folder": "root_a", "file_path": str(live_a)},
+        {"file_name": "x.safetensors", "folder": "root_b", "file_path": str(stale_b)},
+    ]
+
+    async def _fake_scanner():
+        return _FakeScanner(raw_data)
+
+    monkeypatch.setattr(ServiceRegistry, "get_lora_scanner", _fake_scanner)
+    # Exact path matches are authoritative.
+    assert _find_missing_loras(["root_b/x"]) == ["root_b/x"]
+    # Folder-prefix fallback beats the first basename match: root_a is live.
+    assert _find_missing_loras(["root_a/deep/x"]) == []
+    # Prefix match wins over the first candidate: root_b is stale.
+    assert _find_missing_loras(["root_b/deep/x"]) == ["root_b/deep/x"]
+    # No prefix match: falls back to the first basename candidate (root_a).
+    assert _find_missing_loras(["other/x"]) == []