Verify pricing of transactions that consume a lot of gas

[estensen]

Preconfirming a tx that's 10x larger is only slightly more expensive. Verify that this is intentional. Preconfirming 10 txs that use the same amound of gas would be more profitable.

bolt/bolt-sidecar/src/state/pricing.rs

Lines 123 to 156 in c9d59d6

	fn test_min_priority_fee_zero_preconfirmed() {
	let pricing = PreconfPricing::default();
	// Test minimum fee (21k gas ETH transfer, 0 preconfirmed)
	let incoming_gas = 21_000;
	let preconfirmed_gas = 0;
	let min_fee_wei =
	pricing.calculate_min_priority_fee(incoming_gas, preconfirmed_gas).unwrap();
	// Pricing model article expects fee of 0.61 Gwei
	assert!(
	(min_fee_wei as f64 - 613_499_092.0).abs() < 1_000.0,
	"Expected ~613,499,092 Wei, got {} Wei",
	min_fee_wei
	);
	}
	#[test]
	fn test_min_priority_fee_zero_big_preconfirmed() {
	let pricing = PreconfPricing::default();
	// Test minimum fee (210k gas ETH transfer, 0 preconfirmed)
	let incoming_gas = 210_000;
	let preconfirmed_gas = 0;
	let min_fee_wei =
	pricing.calculate_min_priority_fee(incoming_gas, preconfirmed_gas).unwrap();
	// This preconf uses 10x more gas than the 21k preconf,
	// but the fee is only slightly higher.
	assert!(
	(min_fee_wei as f64 - 615_379_171.0).abs() < 1_000.0,
	"Expected ~615,379,171 Wei, got {} Wei",
	min_fee_wei
	);