fix(governance): enforce SugarSubstitute quality standards

tests/node_api/test_seed_node.py

@@ -0,0 +1,44 @@
+# 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 reusable Seed ComfyUI node."""
+
+from __future__ import annotations
+
+from typing import Any
+
+from simple_syrup.nodes.seed import Seed
+
+
+def test_seed_node_contract_constants() -> None:
+    """Seed node exposes the intended ComfyUI output contract."""
+
+    assert Seed.RETURN_TYPES == ("INT",)
+    assert Seed.RETURN_NAMES == ("seed",)
+    assert Seed.FUNCTION == "execute"
+    assert Seed.CATEGORY == "SimpleSyrup/Utilities"
+
+
+def test_seed_node_declares_native_seed_input() -> None:
+    """Seed input uses ComfyUI's native seed widget metadata."""
+
+    input_types: dict[str, dict[str, tuple[Any, ...]]] = Seed.INPUT_TYPES()
+
+    required = input_types["required"]
+    assert tuple(required) == ("seed",)
+
+    seed_input = required["seed"]
+    assert seed_input[0] == "INT"
+
+    metadata = seed_input[1]
+    assert metadata["default"] == 0
+    assert metadata["min"] == 0
+    assert metadata["max"] == 0xFFFFFFFFFFFFFFFF
+    assert metadata["control_after_generate"] is True
+
+
+def test_seed_node_returns_seed_unchanged() -> None:
+    """Execution returns the selected seed value without modification."""
+
+    assert Seed().execute(123) == (123,)