304 lines
9.6 KiB
Python
304 lines
9.6 KiB
Python
"""
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Test Notify and Notifee by ensuring that the proper events get
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called, and that the stream passed into opened_stream is correct
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Note: Listen event does not get hit because MyNotifee is passed
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into network after network has already started listening
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TODO: Add tests for closed_stream disconnected, listen_close when those
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features are implemented in swarm
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"""
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import pytest
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from tests.utils import cleanup
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from libp2p import new_node
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from libp2p.network.notifee_interface import INotifee
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# pylint: disable=too-many-locals
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class MyNotifee(INotifee):
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# pylint: disable=too-many-instance-attributes, cell-var-from-loop
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def __init__(self, events, val_to_append_to_event):
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self.events = events
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self.val_to_append_to_event = val_to_append_to_event
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async def opened_stream(self, network, stream):
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self.events.append(["opened_stream" + \
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self.val_to_append_to_event, stream])
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async def closed_stream(self, network, stream):
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pass
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async def connected(self, network, conn):
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self.events.append(["connected" + self.val_to_append_to_event,\
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conn])
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async def disconnected(self, network, conn):
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pass
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async def listen(self, network, multiaddr):
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pass
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async def listen_close(self, network, multiaddr):
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pass
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class InvalidNotifee():
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# pylint: disable=too-many-instance-attributes, cell-var-from-loop
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def __init__(self):
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pass
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async def opened_stream(self):
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assert False
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async def closed_stream(self):
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assert False
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async def connected(self):
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assert False
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async def disconnected(self):
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assert False
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async def listen(self):
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assert False
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async def perform_two_host_simple_set_up():
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node_a = await new_node(transport_opt=["/ip4/127.0.0.1/tcp/0"])
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node_b = await new_node(transport_opt=["/ip4/127.0.0.1/tcp/0"])
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async def my_stream_handler(stream):
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while True:
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read_string = (await stream.read()).decode()
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resp = "ack:" + read_string
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await stream.write(resp.encode())
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node_b.set_stream_handler("/echo/1.0.0", my_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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return node_a, node_b
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async def perform_two_host_simple_set_up_custom_handler(handler):
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node_a = await new_node(transport_opt=["/ip4/127.0.0.1/tcp/0"])
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node_b = await new_node(transport_opt=["/ip4/127.0.0.1/tcp/0"])
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node_b.set_stream_handler("/echo/1.0.0", 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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return node_a, node_b
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@pytest.mark.asyncio
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async def test_one_notifier():
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node_a, node_b = await perform_two_host_simple_set_up()
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# Add notifee for node_a
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events = []
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assert node_a.get_network().notify(MyNotifee(events, "0"))
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stream = await node_a.new_stream(node_b.get_id(), ["/echo/1.0.0"])
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# Ensure the connected and opened_stream events were hit in MyNotifee obj
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# and that stream passed into opened_stream matches the stream created on
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# node_a
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assert events == [["connected0", stream.mplex_conn], \
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["opened_stream0", stream]]
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messages = ["hello", "hello"]
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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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assert response == ("ack:" + message)
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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_one_notifier_on_two_nodes():
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events_b = []
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async def my_stream_handler(stream):
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# Ensure the connected and opened_stream events were hit in Notifee obj
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# and that the stream passed into opened_stream matches the stream created on
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# node_b
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assert events_b == [["connectedb", stream.mplex_conn], \
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["opened_streamb", stream]]
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while True:
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read_string = (await stream.read()).decode()
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resp = "ack:" + read_string
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await stream.write(resp.encode())
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node_a, node_b = await perform_two_host_simple_set_up_custom_handler(my_stream_handler)
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# Add notifee for node_a
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events_a = []
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assert node_a.get_network().notify(MyNotifee(events_a, "a"))
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# Add notifee for node_b
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assert node_b.get_network().notify(MyNotifee(events_b, "b"))
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stream = await node_a.new_stream(node_b.get_id(), ["/echo/1.0.0"])
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# Ensure the connected and opened_stream events were hit in MyNotifee obj
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# and that stream passed into opened_stream matches the stream created on
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# node_a
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assert events_a == [["connecteda", stream.mplex_conn], \
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["opened_streama", stream]]
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messages = ["hello", "hello"]
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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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assert response == ("ack:" + message)
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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_two_notifiers():
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node_a, node_b = await perform_two_host_simple_set_up()
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# Add notifee for node_a
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events0 = []
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assert node_a.get_network().notify(MyNotifee(events0, "0"))
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events1 = []
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assert node_a.get_network().notify(MyNotifee(events1, "1"))
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stream = await node_a.new_stream(node_b.get_id(), ["/echo/1.0.0"])
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# Ensure the connected and opened_stream events were hit in both Notifee objs
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# and that the stream passed into opened_stream matches the stream created on
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# node_a
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assert events0 == [["connected0", stream.mplex_conn], ["opened_stream0", stream]]
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assert events1 == [["connected1", stream.mplex_conn], ["opened_stream1", stream]]
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messages = ["hello", "hello"]
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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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assert response == ("ack:" + message)
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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_ten_notifiers():
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num_notifiers = 10
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node_a, node_b = await perform_two_host_simple_set_up()
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# Add notifee for node_a
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events_lst = []
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for i in range(num_notifiers):
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events_lst.append([])
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assert node_a.get_network().notify(MyNotifee(events_lst[i], str(i)))
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stream = await node_a.new_stream(node_b.get_id(), ["/echo/1.0.0"])
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# Ensure the connected and opened_stream events were hit in both Notifee objs
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# and that the stream passed into opened_stream matches the stream created on
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# node_a
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for i in range(num_notifiers):
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assert events_lst[i] == [["connected" + str(i), stream.mplex_conn], \
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["opened_stream" + str(i), stream]]
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messages = ["hello", "hello"]
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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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assert response == ("ack:" + message)
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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_ten_notifiers_on_two_nodes():
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num_notifiers = 10
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events_lst_b = []
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async def my_stream_handler(stream):
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# Ensure the connected and opened_stream events were hit in all Notifee objs
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# and that the stream passed into opened_stream matches the stream created on
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# node_b
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for i in range(num_notifiers):
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assert events_lst_b[i] == [["connectedb" + str(i), stream.mplex_conn], \
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["opened_streamb" + str(i), stream]]
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while True:
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read_string = (await stream.read()).decode()
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resp = "ack:" + read_string
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await stream.write(resp.encode())
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node_a, node_b = await perform_two_host_simple_set_up_custom_handler(my_stream_handler)
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# Add notifee for node_a and node_b
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events_lst_a = []
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for i in range(num_notifiers):
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events_lst_a.append([])
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events_lst_b.append([])
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assert node_a.get_network().notify(MyNotifee(events_lst_a[i], "a" + str(i)))
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assert node_b.get_network().notify(MyNotifee(events_lst_b[i], "b" + str(i)))
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stream = await node_a.new_stream(node_b.get_id(), ["/echo/1.0.0"])
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# Ensure the connected and opened_stream events were hit in all Notifee objs
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# and that the stream passed into opened_stream matches the stream created on
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# node_a
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for i in range(num_notifiers):
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assert events_lst_a[i] == [["connecteda" + str(i), stream.mplex_conn], \
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["opened_streama" + str(i), stream]]
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messages = ["hello", "hello"]
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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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assert response == ("ack:" + message)
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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_invalid_notifee():
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num_notifiers = 10
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node_a, node_b = await perform_two_host_simple_set_up()
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# Add notifee for node_a
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events_lst = []
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for _ in range(num_notifiers):
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events_lst.append([])
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assert not node_a.get_network().notify(InvalidNotifee())
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stream = await node_a.new_stream(node_b.get_id(), ["/echo/1.0.0"])
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# If this point is reached, this implies that the InvalidNotifee instance
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# did not assert false, i.e. no functions of InvalidNotifee were called (which is correct
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# given that InvalidNotifee should not have been added as a notifee)
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messages = ["hello", "hello"]
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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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assert response == ("ack:" + message)
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# Success, terminate pending tasks.
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await cleanup()
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