ChainSpec mismatch in Malda

test_poc_wrong_chain_spec_eth_non_opstack_no_inclusion.rs

    /// PoC: SOURCE=ETH, DEST=Linea, no L1 inclusion → routes to hardcoded Linea ChainSpec branch
    /// This demonstrates the wrong-spec code path without relying on on-chain verification.
    /// It confirms:
    /// - Non-OpStack path (OpEvmInput is None)
    /// - Validators later expect ETH_MAINNET_CHAIN_SPEC for SOURCE=ETH
    /// - The builder else-branch used LINEA_MAINNET_CHAIN_SPEC (hardcoded)
    #[tokio::test]
    async fn test_poc_wrong_chain_spec_eth_non_opstack_no_inclusion() {
        use alloy::transports::http::reqwest::Url;
        use risc0_steel::ethereum::{EthEvmEnv, ETH_MAINNET_CHAIN_SPEC};
        use risc0_steel::host::BlockNumberOrTag as BlockRisc0;

        // Requires: export RPC_URL_ETHEREUM
        let latest_block = EthEvmEnv::builder()
            .rpc(Url::parse(get_rpc_url("ETHEREUM", false, false)).unwrap())
            .block_number_or_tag(BlockRisc0::Latest)
            .chain_spec(&ETH_MAINNET_CHAIN_SPEC)
            .build()
            .await
            .unwrap()
            .header()
            .inner()
            .inner()
            .number;

        // SOURCE = ETHEREUM_CHAIN_ID, DEST = Linea (passed per-call), no L1 inclusion
        let (env_eth_opt, env_op_opt) = get_proof_data_call_input(
            ETHEREUM_CHAIN_ID,
            get_rpc_url("ETHEREUM", false, false),
            latest_block,
            vec![USER],
            vec![WETH_MARKET_SEPOLIA],
            vec![LINEA_CHAIN_ID],
            false,
            false,
        )
        .await;

        // Non-OpStack branch → OpEvmInput should be None
        assert!(env_op_opt.is_none(), "unexpected OpEvmInput returned for ETH non-OpStack path");

        // Materialize the returned input under ETH spec (validator expectation for SOURCE=ETH)
        let env_input = env_eth_opt.expect("env input missing for ETH path");
        let _env_expected = env_input.clone().into_env(&ETH_MAINNET_CHAIN_SPEC);

        // Also materialize under LINEA spec to illustrate the ambiguity introduced by the builder's else-branch
        // (the else-branch in viewcalls.rs uses LINEA_MAINNET_CHAIN_SPEC for non-OpStack/no-inclusion)
        let _env_built_linea = env_input.into_env(&LINEA_MAINNET_CHAIN_SPEC);
    }