fix: ensure starter projects refreshed at startup (#3078)

* fix: ensure starter projects refreshed at startup

* [autofix.ci] apply automated fixes

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

src/backend/tests/unit/test_initial_setup.py

@@ -4,7 +4,14 @@ from pathlib import Path
 import pytest
 from sqlmodel import select
 
-from langflow.initial_setup.setup import STARTER_FOLDER_NAME, get_project_data, load_starter_projects
+from langflow.custom.directory_reader.utils import build_custom_component_list_from_path
+from langflow.initial_setup.setup import (
+    STARTER_FOLDER_NAME,
+    get_project_data,
+    load_starter_projects,
+    update_projects_components_with_latest_component_versions,
+)
+from langflow.interface.types import aget_all_types_dict
 from langflow.services.database.models.folder.model import Folder
 from langflow.services.deps import session_scope
 
@@ -86,3 +93,50 @@ async def test_create_or_update_starter_projects():
 #         )
 #         assert all(isinstance(output, RunOutputs) for output in outputs), f"Project {name} error: {outputs}"
 #         delete_messages(session_id="test")
+
+
+def find_componeny_by_name(components, name):
+    for category, children in components.items():
+        if name in children:
+            return children[name]
+    raise ValueError(f"Component {name} not found in components")
+
+
+def set_value(component, input_name, value):
+    component["template"][input_name]["value"] = value
+
+
+def component_to_node(id, type, component):
+    return {"id": type + id, "data": {"node": component, "type": type, "id": id}}
+
+
+def add_edge(input, output, from_output, to_input):
+    return {
+        "source": input,
+        "target": output,
+        "data": {
+            "sourceHandle": {"dataType": "ChatInput", "id": input, "name": from_output, "output_types": ["Message"]},
+            "targetHandle": {"fieldName": to_input, "id": output, "inputTypes": ["Message"], "type": "str"},
+        },
+    }
+
+
+@pytest.mark.asyncio
+async def test_refresh_starter_projects():
+    data_path = str(Path(__file__).parent.parent.parent.absolute() / "base" / "langflow" / "components")
+    components = build_custom_component_list_from_path(data_path)
+
+    chat_input = find_componeny_by_name(components, "ChatInput")
+    chat_output = find_componeny_by_name(components, "ChatOutput")
+    chat_output["template"]["code"]["value"] = "changed !"
+    graph_data = {
+        "nodes": [
+            component_to_node("chat-input-1", "ChatInput", chat_input),
+            component_to_node("chat-output-1", "ChatOutput", chat_output),
+        ],
+        "edges": [add_edge("ChatInput" + "chat-input-1", "ChatOutput" + "chat-output-1", "message", "input_value")],
+    }
+    all_types = await aget_all_types_dict([data_path])
+    new_change = update_projects_components_with_latest_component_versions(graph_data, all_types)
+    assert graph_data["nodes"][1]["data"]["node"]["template"]["code"]["value"] == "changed !"
+    assert new_change["nodes"][1]["data"]["node"]["template"]["code"]["value"] != "changed !"