app.run argument handling: added server kwargs (alike create_server),…

… added warning on extra kwargs, made auto_reload explicit argument. Another go at Windows tests

sanic/app.py

@@ -1096,6 +1096,8 @@ def run(
         stop_event: Any = None,
         register_sys_signals: bool = True,
         access_log: Optional[bool] = None,
+        auto_reload = None,
+        asyncio_server_kwargs = None,
         **kwargs: Any,
     ) -> None:
         """Run the HTTP Server and listen until keyboard interrupt or term
@@ -1126,6 +1128,9 @@ def run(
         :type register_sys_signals: bool
         :param access_log: Enables writing access logs (slows server)
         :type access_log: bool
+        :param asyncio_server_kwargs: key-value arguments for
+                                      asyncio/uvloop create_server method
+        :type asyncio_server_kwargs: dict
         :return: Nothing
         """
         if "loop" in kwargs:
@@ -1135,14 +1140,14 @@ def run(
                 "https://sanic.readthedocs.io/en/latest/sanic/deploying.html"
                 "#asynchronous-support"
             )
-
-        # Default auto_reload to false
-        auto_reload = False
-        # If debug is set, default it to true (unless on windows)
-        if debug and os.name == "posix":
-            auto_reload = True
-        # Allow for overriding either of the defaults
-        auto_reload = kwargs.get("auto_reload", auto_reload)
+        if kwargs:
+            logger.warning(f"Sanic.run ignored arguments {kwargs.keys()}")
+        if auto_reload is None:
+            # Default auto_reload to false
+            auto_reload = False
+            # If debug is set, default it to true (unless on windows)
+            if debug and os.name == "posix":
+                auto_reload = True
 
         if sock is None:
             host, port = host or "127.0.0.1", port or 8000
@@ -1174,6 +1179,8 @@ def run(
             register_sys_signals=register_sys_signals,
             auto_reload=auto_reload,
         )
+        if asyncio_server_kwargs:
+            server_settings["asyncio_server_kwargs"] = asyncio_server_kwargs
 
         try:
             self.is_running = True

sanic/testing.py

@@ -97,7 +97,7 @@ async def error_handler(request, exception):
             server_kwargs = dict(
                 host=host or self.host,
                 port=self.port,
-                reuse_port=True,  # Try to avoid test failures on Windows
+                asyncio_server_kwargs=dict(reuse_address=True),
                 **server_kwargs,
             )
             host, port = host or self.host, self.port