#[test]
fn test_sync_with_coinbase() -> anyhow::Result<()> {
    let env = TestEnv::new()?;
    let electrum_client = electrum_client::Client::new(env.electrsd.electrum_url.as_str())?;
    let client = BdkElectrumClient::new(electrum_client);

    // Setup address.
    let spk_to_track = ScriptBuf::new_p2wsh(&WScriptHash::all_zeros());
    let addr_to_track = Address::from_script(&spk_to_track, bdk_chain::bitcoin::Network::Regtest)?;

    // Setup receiver.
    let (mut recv_chain, _) = LocalChain::from_genesis_hash(env.bitcoind.client.get_block_hash(0)?);
    let mut recv_graph = IndexedTxGraph::<ConfirmationBlockTime, _>::new({
        let mut recv_index = SpkTxOutIndex::default();
        recv_index.insert_spk((), spk_to_track.clone());
        recv_index
    });

    // Mine some blocks.
    env.mine_blocks(101, Some(addr_to_track))?;
    env.wait_until_electrum_sees_block(Duration::from_secs(6))?;

    // Check to see if electrum syncs properly.
    assert!(sync_with_electrum(
        &client,
        [spk_to_track.clone()],
        &mut recv_chain,
        &mut recv_graph,
    )
    .is_ok());

    Ok(())
}