diff --git a/CHANGELOG.md b/CHANGELOG.md index a5646fb1..8bd8a332 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +### Descriptor +#### Added +- Added ability to analyze a `PSBT` to check which and how many signatures are already available + ### Misc #### Changed - Updated `electrum-client` to version `0.7` diff --git a/src/descriptor/policy.rs b/src/descriptor/policy.rs index 793a4845..5b8b77f6 100644 --- a/src/descriptor/policy.rs +++ b/src/descriptor/policy.rs @@ -46,18 +46,26 @@ use bitcoin::util::bip32::Fingerprint; use bitcoin::PublicKey; use miniscript::descriptor::{DescriptorPublicKey, ShInner, SortedMultiVec, WshInner}; -use miniscript::{Descriptor, Miniscript, MiniscriptKey, ScriptContext, Terminal, ToPublicKey}; +use miniscript::{ + Descriptor, ForEachKey, Miniscript, MiniscriptKey, Satisfier, ScriptContext, Terminal, + ToPublicKey, +}; #[allow(unused_imports)] use log::{debug, error, info, trace}; -use crate::descriptor::{DerivedDescriptorKey, ExtractPolicy}; +use crate::descriptor::{ + DerivedDescriptor, DerivedDescriptorKey, DescriptorMeta, ExtendedDescriptor, ExtractPolicy, +}; +use crate::psbt::PSBTUtils; use crate::wallet::signer::{SignerId, SignersContainer}; use crate::wallet::utils::{self, SecpCtx}; use super::checksum::get_checksum; use super::error::Error; use super::XKeyUtils; +use bitcoin::util::psbt::PartiallySignedTransaction as PSBT; +use miniscript::psbt::PsbtInputSatisfier; /// Raw public key or extended key fingerprint #[derive(Debug, Clone, Default, Serialize)] @@ -256,7 +264,7 @@ pub enum Satisfaction { n: usize, /// Threshold m: usize, - /// The items that can be satisfied by the descriptor + /// The items that can be satisfied by the descriptor or are satisfied in the PSBT items: Vec, #[serde(skip_serializing_if = "Option::is_none")] /// Whether the items are sorted in lexicographic order (used by `sortedmulti`) @@ -431,7 +439,7 @@ pub struct Policy { /// Type of this policy node #[serde(flatten)] pub item: SatisfiableItem, - /// How a much given PSBT already satisfies this polcy node **(currently unused)** + /// How much a given PSBT already satisfies this policy node in terms of signatures pub satisfaction: Satisfaction, /// How the wallet's descriptor can satisfy this policy node pub contribution: Satisfaction, @@ -690,6 +698,52 @@ impl Policy { _ => Ok(Condition::default()), } } + + /// fill `self.satisfaction` with the signatures we already have in the PSBT + pub fn fill_satisfactions( + &mut self, + psbt: &PSBT, + desc: &ExtendedDescriptor, // can't put in self because non Serialize + secp: &SecpCtx, + ) -> Result<(), Error> { + // Start from an empty Satisfaction (like a contribution without signers) + let policy = desc.extract_policy(&SignersContainer::default(), &secp)?; + if let Some(policy) = policy { + self.satisfaction = policy.contribution; + + for (i, input) in psbt.inputs.iter().enumerate() { + let s = PsbtInputSatisfier::new(psbt, i); + let derived_desc = desc.derive_from_psbt_input(input, psbt.get_utxo_for(i), secp); + self.add_satisfaction(s, derived_desc); + } + self.satisfaction.finalize(); + } + + Ok(()) + } + + fn add_satisfaction>( + &mut self, + satisfier: S, + derived_desc: Option, + ) { + if let Some(derived_desc) = derived_desc { + let mut index = 0; + derived_desc.for_each_key(|k| { + if satisfier.lookup_sig(&k.as_key().to_public_key()).is_some() { + //TODO check signature verifies + let _ = self.satisfaction.add( + &Satisfaction::Complete { + condition: Default::default(), + }, + index, + ); + } + index += 1; + true + }); + } + } } impl From for Policy { @@ -879,12 +933,15 @@ mod test { use crate::descriptor::{ExtractPolicy, IntoWalletDescriptor}; use super::*; + use crate::bitcoin::consensus::deserialize; + use crate::descriptor::derived::AsDerived; use crate::descriptor::policy::SatisfiableItem::{Multisig, Signature, Thresh}; use crate::keys::{DescriptorKey, IntoDescriptorKey}; use crate::wallet::signer::SignersContainer; - use bitcoin::secp256k1::{All, Secp256k1}; + use bitcoin::secp256k1::Secp256k1; use bitcoin::util::bip32; use bitcoin::Network; + use miniscript::DescriptorTrait; use std::str::FromStr; use std::sync::Arc; @@ -895,9 +952,10 @@ mod test { fn setup_keys( tprv: &str, + path: &str, + secp: &SecpCtx, ) -> (DescriptorKey, DescriptorKey, Fingerprint) { - let secp: Secp256k1 = Secp256k1::new(); - let path = bip32::DerivationPath::from_str(PATH).unwrap(); + let path = bip32::DerivationPath::from_str(path).unwrap(); let tprv = bip32::ExtendedPrivKey::from_str(tprv).unwrap(); let tpub = bip32::ExtendedPubKey::from_private(&secp, &tprv); let fingerprint = tprv.fingerprint(&secp); @@ -913,14 +971,14 @@ mod test { fn test_extract_policy_for_wpkh() { let secp = Secp256k1::new(); - let (prvkey, pubkey, fingerprint) = setup_keys(TPRV0_STR); + let (prvkey, pubkey, fingerprint) = setup_keys(TPRV0_STR, PATH, &secp); let desc = descriptor!(wpkh(pubkey)).unwrap(); let (wallet_desc, keymap) = desc .into_wallet_descriptor(&secp, Network::Testnet) .unwrap(); let signers_container = Arc::new(SignersContainer::from(keymap)); let policy = wallet_desc - .extract_policy(&signers_container, &Secp256k1::new()) + .extract_policy(&signers_container, &secp) .unwrap() .unwrap(); @@ -935,7 +993,7 @@ mod test { .unwrap(); let signers_container = Arc::new(SignersContainer::from(keymap)); let policy = wallet_desc - .extract_policy(&signers_container, &Secp256k1::new()) + .extract_policy(&signers_container, &secp) .unwrap() .unwrap(); @@ -948,63 +1006,66 @@ mod test { } // 2 pub keys descriptor, required 2 prv keys - // #[test] - // fn test_extract_policy_for_sh_multi_partial_0of2() { - // let (_prvkey0, pubkey0, fingerprint0) = setup_keys(TPRV0_STR); - // let (_prvkey1, pubkey1, fingerprint1) = setup_keys(TPRV1_STR); - // let desc = descriptor!(sh(multi 2, pubkey0, pubkey1)).unwrap(); - // let (wallet_desc, keymap) = desc.to_wallet_descriptor(Network::Testnet).unwrap(); - // let signers_container = Arc::new(SignersContainer::from(keymap)); - // let policy = wallet_desc - // .extract_policy(signers_container) - // .unwrap() - // .unwrap(); - // - // assert!( - // matches!(&policy.item, Multisig { keys, threshold } if threshold == &2 - // && &keys[0].fingerprint.unwrap() == &fingerprint0 - // && &keys[1].fingerprint.unwrap() == &fingerprint1) - // ); - // - // // TODO should this be "Satisfaction::None" since we have no prv keys? - // // TODO should items and conditions not be empty? - // assert!( - // matches!(&policy.contribution, Satisfaction::Partial { n, m, items, conditions} if n == &2 - // && m == &2 - // && items.is_empty() - // && conditions.is_empty() - // ) - // ); - // } + #[test] + fn test_extract_policy_for_sh_multi_partial_0of2() { + let secp = Secp256k1::new(); + let (_prvkey0, pubkey0, fingerprint0) = setup_keys(TPRV0_STR, PATH, &secp); + let (_prvkey1, pubkey1, fingerprint1) = setup_keys(TPRV1_STR, PATH, &secp); + let desc = descriptor!(sh(multi(2, pubkey0, pubkey1))).unwrap(); + let (wallet_desc, keymap) = desc + .into_wallet_descriptor(&secp, Network::Testnet) + .unwrap(); + let signers_container = Arc::new(SignersContainer::from(keymap)); + let policy = wallet_desc + .extract_policy(&signers_container, &secp) + .unwrap() + .unwrap(); + + assert!( + matches!(&policy.item, Multisig { keys, threshold } if threshold == &2usize + && &keys[0].fingerprint.unwrap() == &fingerprint0 + && &keys[1].fingerprint.unwrap() == &fingerprint1) + ); + // TODO should this be "Satisfaction::None" since we have no prv keys? + // TODO should items and conditions not be empty? + assert!( + matches!(&policy.contribution, Satisfaction::Partial { n, m, items, conditions, ..} if n == &2usize + && m == &2usize + && items.is_empty() + && conditions.is_empty() + ) + ); + } // 1 prv and 1 pub key descriptor, required 2 prv keys - // #[test] - // fn test_extract_policy_for_sh_multi_partial_1of2() { - // let (prvkey0, _pubkey0, fingerprint0) = setup_keys(TPRV0_STR); - // let (_prvkey1, pubkey1, fingerprint1) = setup_keys(TPRV1_STR); - // let desc = descriptor!(sh(multi 2, prvkey0, pubkey1)).unwrap(); - // let (wallet_desc, keymap) = desc.to_wallet_descriptor(Network::Testnet).unwrap(); - // let signers_container = Arc::new(SignersContainer::from(keymap)); - // let policy = wallet_desc - // .extract_policy(signers_container) - // .unwrap() - // .unwrap(); - // - // assert!( - // matches!(&policy.item, Multisig { keys, threshold } if threshold == &2 - // && &keys[0].fingerprint.unwrap() == &fingerprint0 - // && &keys[1].fingerprint.unwrap() == &fingerprint1) - // ); - // - // // TODO should this be "Satisfaction::Partial" since we have only one of two prv keys? - // assert!( - // matches!(&policy.contribution, Satisfaction::PartialComplete { n, m, items, conditions} if n == &2 - // && m == &2 - // && items.len() == 2 - // && conditions.contains_key(&vec![0,1]) - // ) - // ); - // } + #[test] + fn test_extract_policy_for_sh_multi_partial_1of2() { + let secp = Secp256k1::new(); + let (prvkey0, _pubkey0, fingerprint0) = setup_keys(TPRV0_STR, PATH, &secp); + let (_prvkey1, pubkey1, fingerprint1) = setup_keys(TPRV1_STR, PATH, &secp); + let desc = descriptor!(sh(multi(2, prvkey0, pubkey1))).unwrap(); + let (wallet_desc, keymap) = desc + .into_wallet_descriptor(&secp, Network::Testnet) + .unwrap(); + let signers_container = Arc::new(SignersContainer::from(keymap)); + let policy = wallet_desc + .extract_policy(&signers_container, &secp) + .unwrap() + .unwrap(); + assert!( + matches!(&policy.item, Multisig { keys, threshold } if threshold == &2usize + && &keys[0].fingerprint.unwrap() == &fingerprint0 + && &keys[1].fingerprint.unwrap() == &fingerprint1) + ); + + assert!( + matches!(&policy.contribution, Satisfaction::Partial { n, m, items, conditions, ..} if n == &2usize + && m == &2usize + && items.len() == 1 + && conditions.contains_key(&0) + ) + ); + } // 1 prv and 1 pub key descriptor, required 1 prv keys #[test] @@ -1012,15 +1073,15 @@ mod test { fn test_extract_policy_for_sh_multi_complete_1of2() { let secp = Secp256k1::new(); - let (_prvkey0, pubkey0, fingerprint0) = setup_keys(TPRV0_STR); - let (prvkey1, _pubkey1, fingerprint1) = setup_keys(TPRV1_STR); + let (_prvkey0, pubkey0, fingerprint0) = setup_keys(TPRV0_STR, PATH, &secp); + let (prvkey1, _pubkey1, fingerprint1) = setup_keys(TPRV1_STR, PATH, &secp); let desc = descriptor!(sh(multi(1, pubkey0, prvkey1))).unwrap(); let (wallet_desc, keymap) = desc .into_wallet_descriptor(&secp, Network::Testnet) .unwrap(); let signers_container = Arc::new(SignersContainer::from(keymap)); let policy = wallet_desc - .extract_policy(&signers_container, &Secp256k1::new()) + .extract_policy(&signers_container, &secp) .unwrap() .unwrap(); @@ -1044,15 +1105,15 @@ mod test { fn test_extract_policy_for_sh_multi_complete_2of2() { let secp = Secp256k1::new(); - let (prvkey0, _pubkey0, fingerprint0) = setup_keys(TPRV0_STR); - let (prvkey1, _pubkey1, fingerprint1) = setup_keys(TPRV1_STR); + let (prvkey0, _pubkey0, fingerprint0) = setup_keys(TPRV0_STR, PATH, &secp); + let (prvkey1, _pubkey1, fingerprint1) = setup_keys(TPRV1_STR, PATH, &secp); let desc = descriptor!(sh(multi(2, prvkey0, prvkey1))).unwrap(); let (wallet_desc, keymap) = desc .into_wallet_descriptor(&secp, Network::Testnet) .unwrap(); let signers_container = Arc::new(SignersContainer::from(keymap)); let policy = wallet_desc - .extract_policy(&signers_container, &Secp256k1::new()) + .extract_policy(&signers_container, &secp) .unwrap() .unwrap(); @@ -1077,7 +1138,7 @@ mod test { fn test_extract_policy_for_single_wpkh() { let secp = Secp256k1::new(); - let (prvkey, pubkey, fingerprint) = setup_keys(TPRV0_STR); + let (prvkey, pubkey, fingerprint) = setup_keys(TPRV0_STR, PATH, &secp); let desc = descriptor!(wpkh(pubkey)).unwrap(); let (wallet_desc, keymap) = desc .into_wallet_descriptor(&secp, Network::Testnet) @@ -1085,7 +1146,7 @@ mod test { let single_key = wallet_desc.derive(0); let signers_container = Arc::new(SignersContainer::from(keymap)); let policy = single_key - .extract_policy(&signers_container, &Secp256k1::new()) + .extract_policy(&signers_container, &secp) .unwrap() .unwrap(); @@ -1101,7 +1162,7 @@ mod test { let single_key = wallet_desc.derive(0); let signers_container = Arc::new(SignersContainer::from(keymap)); let policy = single_key - .extract_policy(&signers_container, &Secp256k1::new()) + .extract_policy(&signers_container, &secp) .unwrap() .unwrap(); @@ -1119,8 +1180,8 @@ mod test { fn test_extract_policy_for_single_wsh_multi_complete_1of2() { let secp = Secp256k1::new(); - let (_prvkey0, pubkey0, fingerprint0) = setup_keys(TPRV0_STR); - let (prvkey1, _pubkey1, fingerprint1) = setup_keys(TPRV1_STR); + let (_prvkey0, pubkey0, fingerprint0) = setup_keys(TPRV0_STR, PATH, &secp); + let (prvkey1, _pubkey1, fingerprint1) = setup_keys(TPRV1_STR, PATH, &secp); let desc = descriptor!(sh(multi(1, pubkey0, prvkey1))).unwrap(); let (wallet_desc, keymap) = desc .into_wallet_descriptor(&secp, Network::Testnet) @@ -1128,7 +1189,7 @@ mod test { let single_key = wallet_desc.derive(0); let signers_container = Arc::new(SignersContainer::from(keymap)); let policy = single_key - .extract_policy(&signers_container, &Secp256k1::new()) + .extract_policy(&signers_container, &secp) .unwrap() .unwrap(); @@ -1154,8 +1215,8 @@ mod test { fn test_extract_policy_for_wsh_multi_timelock() { let secp = Secp256k1::new(); - let (prvkey0, _pubkey0, _fingerprint0) = setup_keys(TPRV0_STR); - let (_prvkey1, pubkey1, _fingerprint1) = setup_keys(TPRV1_STR); + let (prvkey0, _pubkey0, _fingerprint0) = setup_keys(TPRV0_STR, PATH, &secp); + let (_prvkey1, pubkey1, _fingerprint1) = setup_keys(TPRV1_STR, PATH, &secp); let sequence = 50; #[rustfmt::skip] let desc = descriptor!(wsh(thresh( @@ -1171,7 +1232,7 @@ mod test { .unwrap(); let signers_container = Arc::new(SignersContainer::from(keymap)); let policy = wallet_desc - .extract_policy(&signers_container, &Secp256k1::new()) + .extract_policy(&signers_container, &secp) .unwrap() .unwrap(); @@ -1192,66 +1253,82 @@ mod test { // - mixed timelocks should fail - // #[test] - // fn test_extract_policy_for_wsh_mixed_timelocks() { - // let (prvkey0, _pubkey0, _fingerprint0) = setup_keys(TPRV0_STR); - // let locktime_threshold = 500000000; // if less than this means block number, else block time in seconds - // let locktime_blocks = 100; - // let locktime_seconds = locktime_blocks + locktime_threshold; - // let desc = descriptor!(sh (and_v (+v pk prvkey0), (and_v (+v after locktime_seconds), (after locktime_blocks)))).unwrap(); - // let (wallet_desc, keymap) = desc.to_wallet_descriptor(Network::Testnet).unwrap(); - // let signers_container = Arc::new(SignersContainer::from(keymap)); - // let policy = wallet_desc - // .extract_policy(signers_container) - // .unwrap() - // .unwrap(); - // - // println!("desc policy = {:?}", policy); // TODO remove - // - // // TODO how should this fail with mixed timelocks? - // } + #[test] + #[ignore] + fn test_extract_policy_for_wsh_mixed_timelocks() { + let secp = Secp256k1::new(); + let (prvkey0, _pubkey0, _fingerprint0) = setup_keys(TPRV0_STR, PATH, &secp); + let locktime_threshold = 500000000; // if less than this means block number, else block time in seconds + let locktime_blocks = 100; + let locktime_seconds = locktime_blocks + locktime_threshold; + let desc = descriptor!(sh(and_v( + v: pk(prvkey0), + and_v(v: after(locktime_seconds), after(locktime_blocks)) + ))) + .unwrap(); + let (wallet_desc, keymap) = desc + .into_wallet_descriptor(&secp, Network::Testnet) + .unwrap(); + let signers_container = Arc::new(SignersContainer::from(keymap)); + let policy = wallet_desc + .extract_policy(&signers_container, &secp) + .unwrap() + .unwrap(); + println!("desc policy = {:?}", policy); // TODO remove + // TODO how should this fail with mixed timelocks? + } // - multiple timelocks of the same type should be correctly merged together + #[test] + #[ignore] + fn test_extract_policy_for_multiple_same_timelocks() { + let secp = Secp256k1::new(); + let (prvkey0, _pubkey0, _fingerprint0) = setup_keys(TPRV0_STR, PATH, &secp); + let locktime_blocks0 = 100; + let locktime_blocks1 = 200; + let desc = descriptor!(sh(and_v( + v: pk(prvkey0), + and_v(v: after(locktime_blocks0), after(locktime_blocks1)) + ))) + .unwrap(); + let (wallet_desc, keymap) = desc + .into_wallet_descriptor(&secp, Network::Testnet) + .unwrap(); + let signers_container = Arc::new(SignersContainer::from(keymap)); + let policy = wallet_desc + .extract_policy(&signers_container, &secp) + .unwrap() + .unwrap(); + println!("desc policy = {:?}", policy); // TODO remove + // TODO how should this merge timelocks? + let (prvkey1, _pubkey1, _fingerprint1) = setup_keys(TPRV0_STR, PATH, &secp); + let locktime_seconds0 = 500000100; + let locktime_seconds1 = 500000200; + let desc = descriptor!(sh(and_v( + v: pk(prvkey1), + and_v(v: after(locktime_seconds0), after(locktime_seconds1)) + ))) + .unwrap(); + let (wallet_desc, keymap) = desc + .into_wallet_descriptor(&secp, Network::Testnet) + .unwrap(); + let signers_container = Arc::new(SignersContainer::from(keymap)); + let policy = wallet_desc + .extract_policy(&signers_container, &secp) + .unwrap() + .unwrap(); - // #[test] - // fn test_extract_policy_for_multiple_same_timelocks() { - // let (prvkey0, _pubkey0, _fingerprint0) = setup_keys(TPRV0_STR); - // let locktime_blocks0 = 100; - // let locktime_blocks1 = 200; - // let desc = descriptor!(sh (and_v (+v pk prvkey0), (and_v (+v after locktime_blocks0), (after locktime_blocks1)))).unwrap(); - // let (wallet_desc, keymap) = desc.to_wallet_descriptor(Network::Testnet).unwrap(); - // let signers_container = Arc::new(SignersContainer::from(keymap)); - // let policy = wallet_desc - // .extract_policy(signers_container) - // .unwrap() - // .unwrap(); - // - // println!("desc policy = {:?}", policy); // TODO remove - // - // // TODO how should this merge timelocks? - // - // let (prvkey1, _pubkey1, _fingerprint1) = setup_keys(TPRV0_STR); - // let locktime_seconds0 = 500000100; - // let locktime_seconds1 = 500000200; - // let desc = descriptor!(sh (and_v (+v pk prvkey1), (and_v (+v after locktime_seconds0), (after locktime_seconds1)))).unwrap(); - // let (wallet_desc, keymap) = desc.to_wallet_descriptor(Network::Testnet).unwrap(); - // let signers_container = Arc::new(SignersContainer::from(keymap)); - // let policy = wallet_desc - // .extract_policy(signers_container) - // .unwrap() - // .unwrap(); - // - // println!("desc policy = {:?}", policy); // TODO remove - // - // // TODO how should this merge timelocks? - // } + println!("desc policy = {:?}", policy); // TODO remove + + // TODO how should this merge timelocks? + } #[test] fn test_get_condition_multisig() { - let secp = Secp256k1::gen_new(); + let secp = Secp256k1::new(); - let (_, pk0, _) = setup_keys(TPRV0_STR); - let (_, pk1, _) = setup_keys(TPRV1_STR); + let (_, pk0, _) = setup_keys(TPRV0_STR, PATH, &secp); + let (_, pk1, _) = setup_keys(TPRV1_STR, PATH, &secp); let desc = descriptor!(wsh(multi(1, pk0, pk1))).unwrap(); let (wallet_desc, keymap) = desc @@ -1291,4 +1368,77 @@ mod test { policy.get_condition(&vec![(policy.id.clone(), vec![5])].into_iter().collect()); assert_eq!(out_of_range, Err(PolicyError::IndexOutOfRange(5))); } + + #[test] + fn test_extract_satisfaction() { + const ALICE_TPRV_STR:&str = "tprv8ZgxMBicQKsPf6T5X327efHnvJDr45Xnb8W4JifNWtEoqXu9MRYS4v1oYe6DFcMVETxy5w3bqpubYRqvcVTqovG1LifFcVUuJcbwJwrhYzP"; + const BOB_TPRV_STR:&str = "tprv8ZgxMBicQKsPeinZ155cJAn117KYhbaN6MV3WeG6sWhxWzcvX1eg1awd4C9GpUN1ncLEM2rzEvunAg3GizdZD4QPPCkisTz99tXXB4wZArp"; + const ALICE_BOB_PATH: &str = "m/0'"; + const ALICE_SIGNED_PSBT: &str = "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"; + const BOB_SIGNED_PSBT: &str = "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"; + const ALICE_BOB_SIGNED_PSBT: &str = "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"; + + let secp = Secp256k1::new(); + + let (prvkey_alice, _, _) = setup_keys(ALICE_TPRV_STR, ALICE_BOB_PATH, &secp); + let (prvkey_bob, _, _) = setup_keys(BOB_TPRV_STR, ALICE_BOB_PATH, &secp); + + let desc = descriptor!(wsh(multi(2, prvkey_alice, prvkey_bob))).unwrap(); + + let (wallet_desc, keymap) = desc + .into_wallet_descriptor(&secp, Network::Testnet) + .unwrap(); + + let addr = wallet_desc + .as_derived(0, &secp) + .address(Network::Testnet) + .unwrap(); + assert_eq!( + "tb1qg3cwv3xt50gdg875qvjjpfgaps86gtk4rz0ejvp6ttc5ldnlxuvqlcn0xk", + addr.to_string() + ); + + let signers_container = Arc::new(SignersContainer::from(keymap)); + + let original_policy = wallet_desc + .extract_policy(&signers_container, &secp) + .unwrap() + .unwrap(); + + let psbt: PSBT = deserialize(&base64::decode(ALICE_SIGNED_PSBT).unwrap()).unwrap(); + let mut policy_clone = original_policy.clone(); + policy_clone + .fill_satisfactions(&psbt, &wallet_desc, &secp) + .unwrap(); + assert!( + matches!(&policy_clone.satisfaction, Satisfaction::Partial { n, m, items, .. } if n == &2 + && m == &2 + && items == &vec![0] + ) + ); + + let mut policy_clone = original_policy.clone(); + let psbt: PSBT = deserialize(&base64::decode(BOB_SIGNED_PSBT).unwrap()).unwrap(); + policy_clone + .fill_satisfactions(&psbt, &wallet_desc, &secp) + .unwrap(); + assert!( + matches!(&policy_clone.satisfaction, Satisfaction::Partial { n, m, items, .. } if n == &2 + && m == &2 + && items == &vec![1] + ) + ); + + let mut policy_clone = original_policy.clone(); + let psbt: PSBT = deserialize(&base64::decode(ALICE_BOB_SIGNED_PSBT).unwrap()).unwrap(); + policy_clone + .fill_satisfactions(&psbt, &wallet_desc, &secp) + .unwrap(); + assert!( + matches!(&policy_clone.satisfaction, Satisfaction::PartialComplete { n, m, items, .. } if n == &2 + && m == &2 + && items == &vec![0, 1] + ) + ); + } }