Initial commit: Node-RED MCP server (Python/FastMCP)

22-tool MCP server for Node-RED flow management with Pydantic models,
incremental flow patching, layout linting, and flexible auth (token,
basic, OAuth2). 137 tests, full ruff compliance.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tests/tools/test_utility.py

@@ -0,0 +1,46 @@
+"""Tests for utility tools."""
+
+import pytest
+
+
+@pytest.mark.asyncio
+class TestApiHelp:
+    async def test_api_help_returns_string(self) -> None:
+        from nodered_mcp.tools.utility import api_help
+
+        result = await api_help.fn()
+
+        # Should return markdown/text string
+        assert isinstance(result, str)
+        assert len(result) > 0
+
+    async def test_api_help_contains_endpoints(self) -> None:
+        from nodered_mcp.tools.utility import api_help
+
+        result = await api_help.fn()
+
+        # Should document key API endpoints
+        assert "/flows" in result
+        assert "/flow" in result
+        assert "/nodes" in result
+        assert "/settings" in result
+
+    async def test_api_help_contains_http_methods(self) -> None:
+        from nodered_mcp.tools.utility import api_help
+
+        result = await api_help.fn()
+
+        # Should mention HTTP methods
+        assert "GET" in result
+        assert "POST" in result or "PUT" in result or "DELETE" in result
+
+    async def test_api_help_no_client_call(self, mock_client) -> None:
+        """Verify api_help doesn't call the client (it's static content)."""
+        from nodered_mcp.tools.utility import api_help
+
+        await api_help.fn()
+
+        # Should not have called any client methods
+        mock_client.get_flows.assert_not_called()
+        mock_client.get_settings.assert_not_called()
+        mock_client.get_nodes.assert_not_called()