py-libp2p/tests/protocol_muxer/test_protocol_muxer.py
stuckinaboot 7fa674dee2
Protocol muxing (#82)
* Implement protocol muxing

* Integrate protocol muxing into new stream and listen's conn handler

* Fix bugs in protocol muxing

* Remove blank line

* Add comments and fix linting issues

* Fix order of parameters to select_one_of to match interface

* Use array of protocol ids in new stream instead of protocol id

* Add basic protocol muxer tests

* Add todo

* Modify new stream to take in protocol ids

* Add check to all tests to ensure protocol id is saved to net stream properly

* Lint tests

* Fix lint issues

* Add todo

* Modify port numbers in tests

* Fix linting issues

* Add more documentation to functions

* Add docs describing classes and fix indent error
2018-11-28 13:51:50 -05:00

89 lines
3.4 KiB
Python

import pytest
from libp2p.libp2p import new_node
from protocol_muxer.multiselect_client import MultiselectClientError
# TODO: Add tests for multiple streams being opened on different
# protocols through the same connection
# Note: async issues occurred when using the same port
# so that's why I use different ports here.
# TODO: modify tests so that those async issues don't occur
# when using the same ports across tests
async def perform_simple_test(expected_selected_protocol, \
protocols_for_client, protocols_with_handlers, \
node_a_port, node_b_port):
transport_opt_a = ["/ip4/127.0.0.1/tcp/" + str(node_a_port) + "/ipfs/node_a"]
transport_opt_b = ["/ip4/127.0.0.1/tcp/" + str(node_b_port) + "/ipfs/node_b"]
node_a = await new_node(\
transport_opt=transport_opt_a)
node_b = await new_node(\
transport_opt=transport_opt_b)
async def stream_handler(stream):
while True:
read_string = (await stream.read()).decode()
print("host B received:" + read_string)
response = "ack:" + read_string
print("sending response:" + response)
await stream.write(response.encode())
for protocol in protocols_with_handlers:
node_b.set_stream_handler(protocol, stream_handler)
# Associate the peer with local ip address (see default parameters of Libp2p())
node_a.get_peerstore().add_addr("node_b", "/ip4/127.0.0.1/tcp/" + str(node_b_port), 10)
stream = await node_a.new_stream("node_b", protocols_for_client)
messages = ["hello" + str(x) for x in range(10)]
for message in messages:
await stream.write(message.encode())
response = (await stream.read()).decode()
print("res: " + response)
assert response == ("ack:" + message)
assert expected_selected_protocol == stream.get_protocol()
# Success, terminate pending tasks.
return
@pytest.mark.asyncio
async def test_single_protocol_succeeds():
expected_selected_protocol = "/echo/1.0.0"
await perform_simple_test(expected_selected_protocol, \
["/echo/1.0.0"], ["/echo/1.0.0"], 8050, 8051)
@pytest.mark.asyncio
async def test_single_protocol_fails():
with pytest.raises(MultiselectClientError):
await perform_simple_test("", ["/echo/1.0.0"], \
["/potato/1.0.0"], 8052, 8053)
@pytest.mark.asyncio
async def test_multiple_protocol_first_is_valid_succeeds():
expected_selected_protocol = "/echo/1.0.0"
protocols_for_client = ["/echo/1.0.0", "/potato/1.0.0"]
protocols_for_listener = ["/foo/1.0.0", "/echo/1.0.0"]
await perform_simple_test(expected_selected_protocol, protocols_for_client, \
protocols_for_listener, 8054, 8055)
@pytest.mark.asyncio
async def test_multiple_protocol_second_is_valid_succeeds():
expected_selected_protocol = "/foo/1.0.0"
protocols_for_client = ["/rock/1.0.0", "/foo/1.0.0"]
protocols_for_listener = ["/foo/1.0.0", "/echo/1.0.0"]
await perform_simple_test(expected_selected_protocol, protocols_for_client, \
protocols_for_listener, 8056, 8057)
@pytest.mark.asyncio
async def test_multiple_protocol_fails():
protocols_for_client = ["/rock/1.0.0", "/foo/1.0.0", "/bar/1.0.0"]
protocols_for_listener = ["/aspyn/1.0.0", "/rob/1.0.0", "/zx/1.0.0", "/alex/1.0.0"]
with pytest.raises(MultiselectClientError):
await perform_simple_test("", protocols_for_client, \
protocols_for_listener, 8058, 8059)