1 files changed, 57 insertions, 0 deletions
diff --git a/tests/multi_net/asyncio_tcp_readall.py b/tests/multi_net/asyncio_tcp_readall.py
new file mode 100644
index 0000000000..66ad97549c
--- /dev/null
+++ b/tests/multi_net/asyncio_tcp_readall.py
@@ -0,0 +1,57 @@
+# Test asyncio stream read(-1) method using TCP server/client
+
+try:
+    import asyncio
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
+PORT = 8000
+
+
+async def handle_connection(reader, writer):
+    writer.write(b"a")
+    await writer.drain()
+
+    # Split the first 2 bytes up so the client must wait for the second one
+    await asyncio.sleep(0.1)
+
+    writer.write(b"b")
+    await writer.drain()
+
+    writer.write(b"c")
+    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(), 2)
+
+
+async def tcp_client():
+    reader, writer = await asyncio.open_connection(IP, PORT)
+    print(await reader.read())
+    print(await reader.read())  # should be empty
+    print(await reader.read(1))  # should be empty
+
+
+def instance0():
+    multitest.globals(IP=multitest.get_network_ip())
+    asyncio.run(tcp_server())
+
+
+def instance1():
+    multitest.next()
+    asyncio.run(tcp_client())