Fix idom.run uvicorn self.servers exception

src/reactpy/backend/_common.py

@@ -7,8 +7,7 @@
 from typing import Any, Awaitable, Sequence, cast
 
 from asgiref.typing import ASGIApplication
-from uvicorn.config import Config as UvicornConfig
-from uvicorn.server import Server as UvicornServer
+import uvicorn
 
 from reactpy import __file__ as _reactpy_file_path
 from reactpy import html
@@ -31,29 +30,32 @@ async def serve_development_asgi(
     port: int,
     started: asyncio.Event | None,
 ) -> None:
-    """Run a development server for starlette"""
-    server = UvicornServer(
-        UvicornConfig(
+    """Run a development server for an ASGI application"""
+    server = uvicorn.Server(
+        uvicorn.Config(
             app,
             host=host,
             port=port,
             loop="asyncio",
             reload=True,
         )
     )
-
+    server.config.setup_event_loop()
     coros: list[Awaitable[Any]] = [server.serve()]
 
+    # If a started event is provided, then use it signal based on `server.started`
     if started:
         coros.append(_check_if_started(server, started))
 
     try:
         await asyncio.gather(*coros)
     finally:
+        if not hasattr(server, "servers"):  # pragma: no cover
+            server.servers = []
         await asyncio.wait_for(server.shutdown(), timeout=3)
 
 
-async def _check_if_started(server: UvicornServer, started: asyncio.Event) -> None:
+async def _check_if_started(server: uvicorn.Server, started: asyncio.Event) -> None:
     while not server.started:
         await asyncio.sleep(0.2)
     started.set()

tests/test_backend/test_all.py

@@ -72,13 +72,6 @@ def Counter():
         await counter.click()
 
 
-async def test_module_from_template(display: DisplayFixture):
-    victory = reactpy.web.module_from_template("react", "[email protected]")
-    VictoryBar = reactpy.web.export(victory, "VictoryBar")
-    await display.show(VictoryBar)
-    await display.page.wait_for_selector(".VictoryContainer")
-
-
 async def test_use_connection(display: DisplayFixture):
     conn = reactpy.Ref()
 

tests/test_web/test_module.py

@@ -77,21 +77,6 @@ def ShowSimpleButton():
             await display.page.wait_for_selector("#my-button")
 
 
-def test_module_from_template_where_template_does_not_exist():
-    with pytest.raises(ValueError, match="No template for 'does-not-exist.js'"):
-        reactpy.web.module_from_template("does-not-exist", "something.js")
-
-
-async def test_module_from_template(display: DisplayFixture):
-    victory = reactpy.web.module_from_template("[email protected]", "[email protected]")
-
-    assert "[email protected]" in victory.file.read_text()
-    VictoryBar = reactpy.web.export(victory, "VictoryBar")
-    await display.show(VictoryBar)
-
-    await display.page.wait_for_selector(".VictoryContainer")
-
-
 async def test_module_from_file(display: DisplayFixture):
     SimpleButton = reactpy.web.export(
         reactpy.web.module_from_file(