97 lines
3.5 KiB
Python
97 lines
3.5 KiB
Python
import pytest
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from tests.utils import cleanup, set_up_nodes_by_transport_opt
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from libp2p import new_node
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from libp2p.protocol_muxer.multiselect_client import MultiselectClientError
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# TODO: Add tests for multiple streams being opened on different
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# protocols through the same connection
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# Note: async issues occurred when using the same port
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# so that's why I use different ports here.
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# TODO: modify tests so that those async issues don't occur
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# when using the same ports across tests
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async def perform_simple_test(expected_selected_protocol,
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protocols_for_client, protocols_with_handlers):
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transport_opt_list = [["/ip4/127.0.0.1/tcp/0"], ["/ip4/127.0.0.1/tcp/0"]]
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(node_a, node_b) = await set_up_nodes_by_transport_opt(transport_opt_list)
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async def stream_handler(stream):
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while True:
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read_string = (await stream.read()).decode()
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print("host B received:" + read_string)
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response = "ack:" + read_string
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print("sending response:" + response)
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await stream.write(response.encode())
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for protocol in protocols_with_handlers:
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node_b.set_stream_handler(protocol, stream_handler)
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# Associate the peer with local ip address (see default parameters of Libp2p())
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node_a.get_peerstore().add_addrs(node_b.get_id(), node_b.get_addrs(), 10)
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stream = await node_a.new_stream(node_b.get_id(), protocols_for_client)
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messages = ["hello" + str(x) for x in range(10)]
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for message in messages:
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await stream.write(message.encode())
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response = (await stream.read()).decode()
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print("res: " + response)
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assert response == ("ack:" + message)
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assert expected_selected_protocol == stream.get_protocol()
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# Success, terminate pending tasks.
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await cleanup()
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@pytest.mark.asyncio
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async def test_single_protocol_succeeds():
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expected_selected_protocol = "/echo/1.0.0"
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await perform_simple_test(expected_selected_protocol,
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["/echo/1.0.0"], ["/echo/1.0.0"])
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@pytest.mark.asyncio
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async def test_single_protocol_fails():
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with pytest.raises(MultiselectClientError):
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await perform_simple_test("", ["/echo/1.0.0"],
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["/potato/1.0.0"])
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# Cleanup not reached on error
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await cleanup()
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@pytest.mark.asyncio
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async def test_multiple_protocol_first_is_valid_succeeds():
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expected_selected_protocol = "/echo/1.0.0"
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protocols_for_client = ["/echo/1.0.0", "/potato/1.0.0"]
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protocols_for_listener = ["/foo/1.0.0", "/echo/1.0.0"]
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await perform_simple_test(expected_selected_protocol, protocols_for_client,
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protocols_for_listener)
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@pytest.mark.asyncio
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async def test_multiple_protocol_second_is_valid_succeeds():
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expected_selected_protocol = "/foo/1.0.0"
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protocols_for_client = ["/rock/1.0.0", "/foo/1.0.0"]
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protocols_for_listener = ["/foo/1.0.0", "/echo/1.0.0"]
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await perform_simple_test(expected_selected_protocol, protocols_for_client,
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protocols_for_listener)
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@pytest.mark.asyncio
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async def test_multiple_protocol_fails():
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protocols_for_client = ["/rock/1.0.0", "/foo/1.0.0", "/bar/1.0.0"]
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protocols_for_listener = ["/aspyn/1.0.0", "/rob/1.0.0", "/zx/1.0.0", "/alex/1.0.0"]
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with pytest.raises(MultiselectClientError):
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await perform_simple_test("", protocols_for_client,
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protocols_for_listener)
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# Cleanup not reached on error
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await cleanup()
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