tests: Rename uasyncio to asyncio.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

tests/multi_net/asyncio_tcp_server_client.py

@@ -0,0 +1,55 @@
+# Test asyncio TCP server and client using start_server() and open_connection()
+
+try:
+    import asyncio
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
+PORT = 8000
+
+
+async def handle_connection(reader, writer):
+    # Test that peername exists (but don't check its value, it changes)
+    writer.get_extra_info("peername")
+
+    data = await reader.read(100)
+    print("echo:", data)
+    writer.write(data)
+    await writer.drain()
+
+    print("close")
+    writer.close()
+    await writer.wait_closed()
+
+    print("done")
+    ev.set()
+
+
+async def tcp_server():
+    global ev
+    ev = asyncio.Event()
+    server = await asyncio.start_server(handle_connection, "0.0.0.0", PORT)
+    print("server running")
+    multitest.next()
+    async with server:
+        await asyncio.wait_for(ev.wait(), 10)
+
+
+async def tcp_client(message):
+    reader, writer = await asyncio.open_connection(IP, PORT)
+    print("write:", message)
+    writer.write(message)
+    await writer.drain()
+    data = await reader.read(100)
+    print("read:", data)
+
+
+def instance0():
+    multitest.globals(IP=multitest.get_network_ip())
+    asyncio.run(tcp_server())
+
+
+def instance1():
+    multitest.next()
+    asyncio.run(tcp_client(b"client data"))