chore: reorganize contracts folder

[leovct]

Description

• Update ERC20 and ERC721 contracts to make them compile with the latest solidity version 0.8.21.
• Move ERC20 and ERC721 contracts to their own package called tokens (along with their ABI and bytecode).
• Move LoadTestercontract, ABI and bytecode to its own folder.
• Add documentation on how to generate go bindings for those contract.
• Provide a Makefile and a handy command to automate the go binding generation called make gen-go-bindings.

Jira / Linear Tickets

x

Testing

• Generate go bindings

$ make gen-go-bindings
solc contracts/tokens/ERC20/ERC20.sol --abi --bin --output-dir contracts/tokens/ERC20 --overwrite --evm-version paris
Compiler run successful. Artifact(s) can be found in directory "contracts/tokens/ERC20".
abigen --abi contracts/tokens/ERC20/ERC20.abi --bin contracts/tokens/ERC20/ERC20.bin --pkg tokens --type ERC20 --out contracts/tokens/ERC20.go
solc contracts/tokens/ERC721/ERC721.sol --abi --bin --output-dir contracts/tokens/ERC721 --overwrite --evm-version paris
Compiler run successful. Artifact(s) can be found in directory "contracts/tokens/ERC721".
abigen --abi contracts/tokens/ERC721/ERC721.abi --bin contracts/tokens/ERC721/ERC721.bin --pkg tokens --type ERC721 --out contracts/tokens/ERC721.go
solc contracts/loadtester/LoadTester.sol --abi --bin --output-dir contracts/loadtester --overwrite --evm-version paris
Compiler run successful. Artifact(s) can be found in directory "contracts/loadtester".
abigen --abi contracts/loadtester/LoadTester.abi --bin contracts/loadtester/LoadTester.bin --pkg contracts --type LoadTester --out contracts/LoadTester.go

• ERC20 transfers load test

$ go run main.go loadtest --mode 2 --requests 100 --verbosity 700  http://localhost:8545
...
11:42AM INF rough test summary (ignores errors) final rate limit=4 firstBlockTime=2023-09-21T11:41:47+02:00 lastBlockTime=2023-09-21T11:42:17+02:00 testDuration=30 tps=3.3333333333333335 transactionCount=100
11:42AM INF * Results
11:42AM INF Samples samples=100
11:42AM INF Start startTime=2023-09-21T11:41:48+02:00
11:42AM INF End endTime=2023-09-21T11:42:12+02:00
11:42AM INF Mean Wait meanWait=0.0063669408099999965
11:42AM INF Num errors numErrors=0
11:42AM INF Finished

• ERC721 mints load test

$ go run main.go loadtest --mode 7 --requests 100 --verbosity 700  http://localhost:8545
...
11:41AM INF rough test summary (ignores errors) final rate limit=4 firstBlockTime=2023-09-21T11:40:53+02:00 lastBlockTime=2023-09-21T11:41:21+02:00 testDuration=28 tps=3.5714285714285716 transactionCount=100
11:41AM INF * Results
11:41AM INF Samples samples=100
11:41AM INF Start startTime=2023-09-21T11:40:53+02:00
11:41AM INF End endTime=2023-09-21T11:41:18+02:00
11:41AM INF Mean Wait meanWait=0.009857554539999999
11:41AM INF Num errors numErrors=0
11:41AM INF Finished

• Random opcode calls load test

$ go run main.go loadtest --mode c --requests 100 --verbosity 700  http://localhost:8545
...
11:43AM INF rough test summary (ignores errors) final rate limit=4 firstBlockTime=2023-09-21T11:43:13+02:00 lastBlockTime=2023-09-21T11:43:41+02:00 testDuration=28 tps=3.5714285714285716 transactionCount=100
11:43AM INF * Results
11:43AM INF Samples samples=100
11:43AM INF Start startTime=2023-09-21T11:43:13+02:00
11:43AM INF End endTime=2023-09-21T11:43:38+02:00
11:43AM INF Mean Wait meanWait=0.007924913380000002
11:43AM INF Num errors numErrors=0
11:43AM INF Finished

[leovct]

Pipeline fails because of the issue mentioned in #125