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go-ethereum/cmd/evm/testdata/8/readme.md

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EIP-2930 testing

This test contains testcases for EIP-2930, which uses transactions with access lists.

Prestate

The alloc portion contains one contract (0x000000000000000000000000000000000000aaaa), containing the following code: 0x5854505854: PC ;SLOAD; POP; PC; SLOAD.

Essentialy, this contract does SLOAD(0) and SLOAD(3).

The alloc also contains some funds on 0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b.

Transactions

There are three transactions, each invokes the contract above.

  1. ACL-transaction, which contains some non-used slots
  2. Regular transaction
  3. ACL-transaction, which contains the slots 1 and 3 in 0x000000000000000000000000000000000000aaaa

Execution

Running it yields:

dir=./testdata/8 && ./evm t8n --state.fork=Berlin --input.alloc=$dir/alloc.json --input.txs=$dir/txs.json --input.env=$dir/env.json --trace && cat trace-* | grep SLOAD
{"pc":1,"op":84,"gas":"0x484be","gasCost":"0x834","memory":"0x","memSize":0,"stack":["0x0"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}
{"pc":4,"op":84,"gas":"0x47c86","gasCost":"0x834","memory":"0x","memSize":0,"stack":["0x3"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}
{"pc":1,"op":84,"gas":"0x49cf6","gasCost":"0x834","memory":"0x","memSize":0,"stack":["0x0"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}
{"pc":4,"op":84,"gas":"0x494be","gasCost":"0x834","memory":"0x","memSize":0,"stack":["0x3"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}
{"pc":1,"op":84,"gas":"0x484be","gasCost":"0x64","memory":"0x","memSize":0,"stack":["0x0"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}
{"pc":4,"op":84,"gas":"0x48456","gasCost":"0x64","memory":"0x","memSize":0,"stack":["0x3"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}

Simlarly, we can provide the input transactions via stdin instead of as file:

dir=./testdata/8 \
  && cat $dir/txs.json | jq "{txs: .}" \
  | ./evm t8n --state.fork=Berlin \
     --input.alloc=$dir/alloc.json \
     --input.txs=stdin \
     --input.env=$dir/env.json \
     --trace  \
  && cat trace-* | grep SLOAD

{"pc":1,"op":84,"gas":"0x484be","gasCost":"0x834","memory":"0x","memSize":0,"stack":["0x0"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}
{"pc":4,"op":84,"gas":"0x47c86","gasCost":"0x834","memory":"0x","memSize":0,"stack":["0x3"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}
{"pc":1,"op":84,"gas":"0x49cf6","gasCost":"0x834","memory":"0x","memSize":0,"stack":["0x0"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}
{"pc":4,"op":84,"gas":"0x494be","gasCost":"0x834","memory":"0x","memSize":0,"stack":["0x3"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}
{"pc":1,"op":84,"gas":"0x484be","gasCost":"0x64","memory":"0x","memSize":0,"stack":["0x0"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}
{"pc":4,"op":84,"gas":"0x48456","gasCost":"0x64","memory":"0x","memSize":0,"stack":["0x3"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"SLOAD","error":""}

If we try to execute it on older rules:

dir=./testdata/8 && ./evm t8n --state.fork=Istanbul --input.alloc=$dir/alloc.json --input.txs=$dir/txs.json --input.env=$dir/env.json 
INFO [01-21|23:21:51.265] rejected tx                              index=0 hash="d2818d…6ab3da" error="tx type not supported"
INFO [01-21|23:21:51.265] rejected tx                              index=1 hash="26ea00…81c01b" from=0xa94f5374Fce5edBC8E2a8697C15331677e6EbF0B error="nonce too high: address 0xa94f5374Fce5edBC8E2a8697C15331677e6EbF0B, tx: 1 state: 0"
INFO [01-21|23:21:51.265] rejected tx                              index=2 hash="698d01…369cee" error="tx type not supported"

Number 1 and 3 are not applicable, and therefore number 2 has wrong nonce.