Increase test coverage

[fredericof]

More unit tests for core components:

• Broker
• Events
• Publish/Subscriber
• Handshake
• Node
• Peer
• Router
• Session
• Signal
• Errors

Tests to check:

• Peer metrics (What should the metrics be for a peer?)
• Node benchmark
• Benchmark with data transfer
• Security channel: Encrypted and Decrypted
• Check if a public key already exists
• Sign data with the public key
• Connection errors

Some use cases:

• Transfer data
• Bidirectional communication
• Broadcast message
• Inspect a peer routing table

Good Practices:

• https://dev.to/boncheff/table-driven-unit-tests-in-go-407b
• https://fossa.com/blog/golang-best-practices-testing-go
• https://climbtheladder.com/10-golang-testing-best-practices/

[geolffreym]

"Peer metrics (What should the metrics be for a peer?)"

• handshakeTime // how long took the handshake to complete.
• latency // rtt in ms
• bandwidth // remote peer bandwidth
• sent // sent messages
• recv // received messages
• bytesRecv // bytes received
• bytesSent // bytes sent

[geolffreym]

"Security channel: Encrypted and Decrypted"

• Here we could measure the difference between using blake2 and sha2 as a hashing function, maybe we could also calculate the time it takes to generate the keys and prepare to start the handshake?
• How log it takes key generation?
• How log it takes encryption/decryption?

[geolffreym]

"Node benchmark"

• how long it takes to initialize the node and prepare it to listen.
• how long it takes to connect with another peer before the handshake.
• how long does it take to finish the hanshake between one node and another simulating the latency using this site https://www.meter.net/tools/world-ping-test/ to obtain a list of latencies based on a specific location so that we can simulate the time it might take to handshake a node based on this latency.

[geolffreym]

"Benchmark with data transfer"

• Lets see the behavior using raw data vs compressed https://research.protocol.ai/blog/2020/honey-i-shrunk-our-libp2p-streams/

[geolffreym]

• benchmark memory usage for handshake byte pool profiling
• benchmark time for message exchange