+++ /dev/null
-use bitcoin::blockdata::transaction::TxOut;
-
-use std::cmp::Ordering;
-
-pub fn sort_outputs<T, C : Fn(&T, &T) -> Ordering>(outputs: &mut Vec<(TxOut, T)>, tie_breaker: C) {
- outputs.sort_unstable_by(|a, b| {
- a.0.value.cmp(&b.0.value).then_with(|| {
- a.0.script_pubkey[..].cmp(&b.0.script_pubkey[..]).then_with(|| {
- tie_breaker(&a.1, &b.1)
- })
- })
- });
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- use bitcoin::blockdata::script::{Script, Builder};
- use bitcoin::blockdata::transaction::TxOut;
-
- use hex::decode;
-
- #[test]
- fn sort_output_by_value() {
- let txout1 = TxOut {
- value: 100,
- script_pubkey: Builder::new().push_int(0).into_script()
- };
- let txout1_ = txout1.clone();
-
- let txout2 = TxOut {
- value: 99,
- script_pubkey: Builder::new().push_int(0).into_script()
- };
- let txout2_ = txout2.clone();
-
- let mut outputs = vec![(txout1, "ignore"), (txout2, "ignore")];
- sort_outputs(&mut outputs, |_, _| { unreachable!(); });
-
- assert_eq!(
- &outputs,
- &vec![(txout2_, "ignore"), (txout1_, "ignore")]
- );
- }
-
- #[test]
- fn sort_output_by_script_pubkey() {
- let txout1 = TxOut {
- value: 100,
- script_pubkey: Builder::new().push_int(3).into_script(),
- };
- let txout1_ = txout1.clone();
-
- let txout2 = TxOut {
- value: 100,
- script_pubkey: Builder::new().push_int(1).push_int(2).into_script()
- };
- let txout2_ = txout2.clone();
-
- let mut outputs = vec![(txout1, "ignore"), (txout2, "ignore")];
- sort_outputs(&mut outputs, |_, _| { unreachable!(); });
-
- assert_eq!(
- &outputs,
- &vec![(txout2_, "ignore"), (txout1_, "ignore")]
- );
- }
-
- #[test]
- fn sort_output_by_bip_test() {
- let txout1 = TxOut {
- value: 100000000,
- script_pubkey: script_from_hex("41046a0765b5865641ce08dd39690aade26dfbf5511430ca428a3089261361cef170e3929a68aee3d8d4848b0c5111b0a37b82b86ad559fd2a745b44d8e8d9dfdc0cac")
- };
- let txout1_ = txout1.clone();
-
- // doesn't deserialize cleanly:
- let txout2 = TxOut {
- value: 2400000000,
- script_pubkey: script_from_hex("41044a656f065871a353f216ca26cef8dde2f03e8c16202d2e8ad769f02032cb86a5eb5e56842e92e19141d60a01928f8dd2c875a390f67c1f6c94cfc617c0ea45afac")
- };
- let txout2_ = txout2.clone();
-
- let mut outputs = vec![(txout1, "ignore"), (txout2, "ignore")];
- sort_outputs(&mut outputs, |_, _| { unreachable!(); });
-
- assert_eq!(&outputs, &vec![(txout1_, "ignore"), (txout2_, "ignore")]);
- }
-
- fn script_from_hex(hex_str: &str) -> Script {
- Script::from(decode(hex_str).unwrap())
- }
-
- macro_rules! bip_txout_tests {
- ($($name:ident: $value:expr,)*) => {
- $(
- #[test]
- fn $name() {
- let expected_raw: Vec<(u64, &str)> = $value;
- let expected: Vec<(TxOut, &str)> = expected_raw.iter()
- .map(|txout_raw| TxOut {
- value: txout_raw.0,
- script_pubkey: script_from_hex(txout_raw.1)
- }).map(|txout| (txout, "ignore"))
- .collect();
-
- let mut outputs = expected.clone();
- outputs.reverse(); // prep it
-
- // actually do the work!
- sort_outputs(&mut outputs, |_, _| { unreachable!(); });
-
- assert_eq!(outputs, expected);
- }
- )*
- }
- }
-
- const TXOUT1: [(u64, &str); 2] = [
- (400057456, "76a9144a5fba237213a062f6f57978f796390bdcf8d01588ac"),
- (40000000000, "76a9145be32612930b8323add2212a4ec03c1562084f8488ac"),
- ];
- const TXOUT2: [(u64, &str); 2] = [
- (100000000, "41046a0765b5865641ce08dd39690aade26dfbf5511430ca428a3089261361cef170e3929a68aee3d8d4848b0c5111b0a37b82b86ad559fd2a745b44d8e8d9dfdc0cac"),
- (2400000000, "41044a656f065871a353f216ca26cef8dde2f03e8c16202d2e8ad769f02032cb86a5eb5e56842e92e19141d60a01928f8dd2c875a390f67c1f6c94cfc617c0ea45afac"),
- ];
- bip_txout_tests! {
- bip69_txout_test_1: TXOUT1.to_vec(),
- bip69_txout_test_2: TXOUT2.to_vec(),
- }
-}