tests/net_inet: Add uasyncio internet tests.

tests/net_inet/uasyncio_cancel_stream.py

@@ -0,0 +1,35 @@
+# Test cancelling a task waiting on stream IO
+
+try:
+    import uasyncio as asyncio
+except ImportError:
+    try:
+        import asyncio
+    except ImportError:
+        print("SKIP")
+        raise SystemExit
+
+
+async def get(reader):
+    print("start")
+    try:
+        await reader.read(10)
+        print("fail")
+    except asyncio.CancelledError:
+        print("cancelled")
+
+
+async def main(url):
+    reader, writer = await asyncio.open_connection(url, 80)
+    task = asyncio.create_task(get(reader))
+    await asyncio.sleep(0)
+    print("cancelling")
+    task.cancel()
+    print("waiting")
+    await task
+    print("done")
+    writer.close()
+    await writer.wait_closed()
+
+
+asyncio.run(main("micropython.org"))

tests/net_inet/uasyncio_cancel_stream.py.exp

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+start
+cancelling
+waiting
+cancelled
+done

tests/net_inet/uasyncio_open_connection.py

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+# Test simple HTTP request with uasyncio.open_connection()
+
+try:
+    import uasyncio as asyncio
+except ImportError:
+    try:
+        import asyncio
+    except ImportError:
+        print("SKIP")
+        raise SystemExit
+
+
+async def http_get(url):
+    reader, writer = await asyncio.open_connection(url, 80)
+
+    print("write GET")
+    writer.write(b"GET / HTTP/1.0\r\n\r\n")
+    await writer.drain()
+
+    print("read response")
+    data = await reader.read(100)
+    print("read:", data.split(b"\r\n")[0])
+
+    print("close")
+    writer.close()
+    await writer.wait_closed()
+    print("done")
+
+
+asyncio.run(http_get("micropython.org"))

tests/net_inet/uasyncio_open_connection.py.exp

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+write GET
+read response
+read: b'HTTP/1.1 200 OK'
+close
+done

tests/net_inet/uasyncio_tcp_read_headers.py

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+# Test uasyncio.open_connection() and stream readline()
+
+try:
+    import uasyncio as asyncio
+except ImportError:
+    try:
+        import asyncio
+    except ImportError:
+        print("SKIP")
+        raise SystemExit
+
+
+async def http_get_headers(url):
+    reader, writer = await asyncio.open_connection(url, 80)
+
+    print("write GET")
+    writer.write(b"GET / HTTP/1.0\r\n\r\n")
+    await writer.drain()
+
+    while True:
+        line = await reader.readline()
+        line = line.strip()
+        if not line:
+            break
+        if line.find(b"Date") == -1 and line.find(b"Modified") == -1 and line.find(b"Server") == -1:
+            print(line)
+
+    print("close")
+    writer.close()
+    await writer.wait_closed()
+    print("done")
+
+
+asyncio.run(http_get_headers("micropython.org"))

tests/net_inet/uasyncio_tcp_read_headers.py.exp

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+write GET
+b'HTTP/1.1 200 OK'
+b'Content-Type: text/html'
+b'Content-Length: 54'
+b'Connection: close'
+b'Vary: Accept-Encoding'
+b'ETag: "54306c85-36"'
+b'Accept-Ranges: bytes'
+close
+done