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docs(test): handle IHAVE / IWANT tests (#1202) 

Add documentation as requested.
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Álex 2024-10-31 18:23:24 +01:00 committed by GitHub
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1 changed files with 49 additions and 28 deletions
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tests/pubsub/testgossipinternal.nim
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@ -677,55 +677,76 @@ suite "GossipSub internal":
gossipSub.mesh[topic] = initHashSet[PubSubPeer]()
gossipSub.subscribe(topic, handler2)
# Instantiates 30 peers and connects all of them to the previously defined `gossipSub`
for i in 0 ..< 30:
# Define a new connection
let conn = TestBufferStream.new(noop)
conns &= conn
let peerId = randomPeerId()
conn.peerId = peerId
let peer = gossipSub.getPubSubPeer(peerId)
peer.handler = handler
# Add the connection to `gossipSub`, to their `gossipSub.gossipsub` and `gossipSub.mesh` tables
gossipSub.grafted(peer, topic)
gossipSub.mesh[topic].incl(peer)
# Peers with no budget should not request messages
block:
# should ignore no budget peer
let conn = TestBufferStream.new(noop)
conns &= conn
let peerId = randomPeerId()
conn.peerId = peerId
let peer = gossipSub.getPubSubPeer(peerId)
let id = @[0'u8, 1, 2, 3]
let msg = ControlIHave(topicID: topic, messageIDs: @[id, id, id])
peer.iHaveBudget = 0
let iwants = gossipSub.handleIHave(peer, @[msg])
check:
iwants.messageIDs.len == 0
block:
# given duplicate ihave should generate only one iwant
let conn = TestBufferStream.new(noop)
conns &= conn
let peerId = randomPeerId()
conn.peerId = peerId
let peer = gossipSub.getPubSubPeer(peerId)
let id = @[0'u8, 1, 2, 3]
let msg = ControlIHave(topicID: topic, messageIDs: @[id, id, id])
let iwants = gossipSub.handleIHave(peer, @[msg])
check:
iwants.messageIDs.len == 1
block:
# given duplicate iwant should generate only one message
# Define a new connection
let conn = TestBufferStream.new(noop)
conns &= conn
let peerId = randomPeerId()
conn.peerId = peerId
let peer = gossipSub.getPubSubPeer(peerId)
# Add message to `gossipSub`'s message cache
let id = @[0'u8, 1, 2, 3]
gossipSub.mcache.put(id, Message())
peer.sentIHaves[^1].incl(id)
# Build an IHAVE message that contains the same message ID three times
let msg = ControlIHave(topicID: topic, messageIDs: @[id, id, id])
# Given the peer has no budget to request messages
peer.iHaveBudget = 0
# When a peer makes an IHAVE request for the a message that `gossipSub` has
let iwants = gossipSub.handleIHave(peer, @[msg])
# Then `gossipSub` should not generate an IWant message for the message,
check:
iwants.messageIDs.len == 0
# Peers with budget should request messages. If ids are repeated, only one request should be generated
block:
# Define a new connection
let conn = TestBufferStream.new(noop)
conns &= conn
let peerId = randomPeerId()
conn.peerId = peerId
let peer = gossipSub.getPubSubPeer(peerId)
let id = @[0'u8, 1, 2, 3]
# Build an IHAVE message that contains the same message ID three times
let msg = ControlIHave(topicID: topic, messageIDs: @[id, id, id])
# Given the budget is not 0 (because it's not been overridden)
# When a peer makes an IHAVE request for the a message that `gossipSub` does not have
let iwants = gossipSub.handleIHave(peer, @[msg])
# Then `gossipSub` should generate an IWant message for the message
check:
iwants.messageIDs.len == 1
# Peers with budget should request messages. If ids are repeated, only one request should be generated
block:
# Define a new connection
let conn = TestBufferStream.new(noop)
conns &= conn
let peerId = randomPeerId()
conn.peerId = peerId
let peer = gossipSub.getPubSubPeer(peerId)
# Add message to `gossipSub`'s message cache
let id = @[0'u8, 1, 2, 3]
gossipSub.mcache.put(id, Message())
peer.sentIHaves[^1].incl(id)
# Build an IWANT message that contains the same message ID three times
let msg = ControlIWant(messageIDs: @[id, id, id])
# When a peer makes an IWANT request for the a message that `gossipSub` has
let genmsg = gossipSub.handleIWant(peer, @[msg])
# Then `gossipSub` should return the message
check:
genmsg.len == 1