Tests in crates/starknet-devnet/tests/test_simulate_transactions.rs were written to have the same coverage as devnet-py the corresponding devnet-py tests. Currently there are TODOs:

• Better testing of SKIP_FEE_CHARGE by using a greater than zero max_fee in several tests
• Add testing of invoke tx simulation being reverted (could be done by using an invalid max_fee (checked: this leads to a Reverted case that is currently not tested))
  - Another test needs replacement of .ge with .gt (basically we would want to assert that using SKIP_VALIDATE actually lowers the estimated fee, but currently it does not have effect, as described in this issue: SKIP_VALIDATE not affecting fee in simulation lambdaclass/starknet_in_rust#1051)
  • This issue can be addressed separately as it would not merely be enhancement but fix
• Use starknet.rs's .simulate(...) instead of manually constructing simulation requests.