bug(script): inflated gas price estimate on Tempo

[joohhnnn]

Component

Forge

Have you ensured that all of these are up to date?

• Foundry
• Foundryup

What version of Foundry are you on?

No response

What version of Foundryup are you on?

No response

What command(s) is the bug in?

forge script

Operating System

macOS (Apple Silicon)

Describe the bug

forge script shows inflated gas price estimates on Tempo mainnet (chain 4217).

forge script script/Deploy.s.sol:DeployScript --rpc-url https://rpc.presto.tempo.xyz/ --private-key <key>

Output:

Estimated gas price: 41000 USDC
Estimated amount required: 8358096000. USDC

Actual values from RPC:

• eth_gasPrice: 20 gwei (20000000000)
• eth_maxPriorityFeePerGas: 0
• baseFeePerGas: 20 gwei

Expected estimate should be ~40 gwei (2 * baseFee + priority), not 41000.

Additionally, the gas price unit is displayed as "gwei" which doesn't apply to Tempo's USDC gas token.

[joohhnnn]

fixed in alloy-rs/alloy#3828 waiting for review

[joohhnnn]

Additionally, the gas price unit is displayed as "gwei" which doesn't apply to Tempo's USDC gas token.

should we handle this in someways?

[zerosnacks]

Thanks @joohhnnn! I'll get some eyes on the Alloy PR.

Additionally, the gas price unit is displayed as "gwei" which doesn't apply to Tempo's USDC gas token.

should we handle this in someways?

The gas token of Tempo is expressed as USD w/ 6 decimals